Publications, data & software

Open results.
Traceable context.

Publications, datasets and software are documented together with the underlying observations, methods and projects.

DOIDatasetsOpen softwareProject links
Illustration of a scientific data dashboard

Publications

Publications from the APC team

2026

Comprehensive Characterization and Source Analysis of VOC Fluxes in a Chinese Megacity

Xianjun He, Bin Yuan, Yibo Huangfu, Sihang Wang, Yubin Chen, Xiaoxiao Zhang, Yihua Sun, Thomas Karl, Min Shao

Environmental Science & Technology↗
2026

Rapid Declines in European Traffic NOx and NMVOC Emissions Revealed by Eddy-Covariance and Remote Sensing

Thomas Karl, Werner Jud, Christian Lamprecht, Martin Graus, Stanislav Juráň, Arianna Peron, Thilo Zürrlein, Michael Stichaner, Helen Ward, Bin Yuan, Martin Tiefengraber, Alexander Cede

ACS ES&T Air↗
2026

Species-specific BVOC emission dynamics of Pinus sylvestris and Juniperus communis during different drought intensities

Judith Schmack, Anna de Vries, Felix M. Spielmann, Jörg‐Peter Schnitzler, Jana Barbro Winkler, Baris Weber, Georg Wohlfahrt, Thomas Karl, Werner Jud

Plant Stress↗
2026

Sustained reductions in European traffic air-pollution emissions revealed by long-term eddy-covariance fluxes

Thomas Karl, Werner Jud, Christian Lamprecht, Michael Stichaner, Arianna Peron, Martin Graus, Bin Yuan

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2026

Tree selection in urban greening shapes air quality for global cities

Xianjun He, Bin Yuan, Yibo Huangfu, J. A. de Gouw, Sihang Wang, Suxia Yang, Yuwen Peng, D. D. Parrish, Xiaobing Li, Ming Chang, Zhanyou Mo, Kyung‐Eun Min, Woohui Nam, Yubin Chen, Xiaoxiao Zhang, Jipeng Qi, Qianqian Xie, Weihua Chen, Alex Guenther, Xuemei Wang, Douglas R. Worsnop, Thomas Karl, Min Shao

Science Advances↗
2026

Urban VOC monitoring by VOCentinel at the Innsbruck Atmospheric Observatory (IAO)

Arianna Peron, Martin Graus, Klaus Winkler, Markus Müller, Markus Leiminger, Tobias Reinecke, Thomas Karl

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2025

Flux measurements of NOx, O3 and Ox: Emission characteristics, inventory validation and titration effects

Xiaoxiao Zhang, Bin Yuan, Yibo Huangfu, Huizhi Liu, Thomas Karl, Ming Chang, Shiyi Chen, Tao Song, Jintai Lin, Guannan Geng, Hongjuan Li, Eran Tas

Environmental Pollution↗
2025

Longterm urban eddy covariance observations of methane and other trace gases reveal characteristic anthropogenic emission hotspots

Thomas Karl, Michael Stichaner, Werner Jud, Christian Lamprecht, Niels Jensen, Giovanni Manca, Arianna Peron, Martin Graus, Shahid Naqui

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2025

Turbulent enhancement ratios used for characterizing local emission sources in a complex urban environment

Christian Lamprecht, M. Graus, Marcus Striednig, Michael Stichaner, Werner Jud, Andreas Held, Thomas Karl

Atmospheric measurement techniques↗
2024

Atmospheric chemical source signatures from proton-transfer reaction mass spectrometry aid in the interpretation of ambient aerosol distributions

Marcus Striednig, Michael Stichaner, M. Graus, Martin Mühlegger, Christian Lamprecht, Arianna Peron, Thomas Karl

Physica Scripta↗
2024

Deciphering anthropogenic and biogenic contributions to selected non-methane volatile organic compound emissions in an urban area

Arianna Peron, M. Graus, Marcus Striednig, Christian Lamprecht, Georg Wohlfahrt, Thomas Karl

Atmospheric chemistry and physics↗
2024

Mapping urban haze

Thomas Karl

Science↗
2024

Natural Gas Leakage Ratio Determined from Flux Measurements of Methane in Urban Beijing

Yibo Huangfu, Bin Yuan, Xianjun He, Ziyang Liu, Yuanting Zhang, Thomas Karl, Marcus Striednig, Yang Ding, Xiaodong Chen, Hongjuan Li, Huadan Zheng, Ming Chang, Xuemei Wang, Min Shao

Environmental Science & Technology Letters↗
2024

Supplementary material to „The Turbulent Enhancement Ratio as a novel Approach for Characterizing Local Emission Sources in Complex Environments“

Christian Lamprecht, Martin Graus, Marcus Striednig, Michael Stichaner, Werner Jud, Andreas Held, Thomas Karl

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2024

The Turbulent Enhancement Ratio as a novel Approach for Characterizing Local Emission Sources in Complex Environments

Christian Lamprecht, Martin Graus, Marcus Striednig, Michael Stichaner, Werner Jud, Andreas Held, Thomas Karl

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2024

Urban sources of methane characterised by long-term eddy covariance observations in central Europe

Michael Stichaner, Thomas Karl, Niels R. Jensen, Marcus Striednig, M. Graus, Christian Lamprecht, Werner Jud

Atmospheric Environment↗
2023

High urban NOx triggers a substantial chemical downward flux of ozone

Thomas Karl, Christian Lamprecht, M. Graus, Alexander M. Cede, Martin Tiefengraber, Jordi Vilà-Guerau De Arellano, David Gurarie, Donald H. Lenschow

Science Advances↗
2023

Same, same, but different: Drought and salinity affect BVOC emission rate and alter blend composition of urban trees

Anne Charlott Fitzky, L. Kaser, Arianna Peron, Thomas Karl, M. Graus, Danny Tholen, Heidi Halbwirth, Heidelinde Trimmel, Mario B. Pesendorfer, Boris Rewald, Hans Sandén

Urban forestry & urban greening↗
2023

Synthesizing evidence for the external cycling of NOx in high- to low-NOx atmospheres

Chunxiang Ye, Xianliang Zhou, Yingjie Zhang, Youfeng Wang, Jian‐Shu Wang, Chong Zhang, Robert Woodward-Massey, Christopher A. Cantrell, Roy L. Mauldin, Teresa L Campos, Rebecca S. Hornbrook, John Ortega, Eric C. Apel, Julie A. Haggerty, Samuel R. Hall, Kirk Ullmann, A. J. Weinheimer, J. Stutz, Thomas Karl, JAMES N. M. SMITH, Alex Guenther, Shaojie Song

Nature Communications↗
2023

The influence of vegetation drought stress on formaldehyde and ozone distributions over a central European city

Heidelinde Trimmel, Paul Hamer, Monika Mayer, Stefan F. Schreier, Philipp Weihs, Josef Eitzinger, Hans Sandén, Anne Charlott Fitzky, Andreas Richter, Jean‐Christophe Calvet, Bertrand Bonan, Catherine Meurey, Islen Vallejo, Sabine Eckhardt, Gabriela Sousa Santos, Safae Oumami, Joaquim Arteta, Virginie Marécal, L. Tarrasón, Thomas Karl, Harald E. Rieder

Atmospheric Environment↗
2022

A Collaborative Effort to Better Understand, Measure, and Model Atmospheric Exchange Processes over Mountains

Mathias Walter Rotach, Stefano Serafin, Helen Claire Ward, M. Arpagaus, Ioana Colfescu, Joan Cuxart, Stephan F. J. De Wekker, Vanda Grubı̆sı́c, Norbert Kalthoff, Thomas Karl, Daniel J. Kirshbaum, Manuela Lehner, Stephen D. Mobbs, Alexandre Paci, Elisa Palazzi, Adriana Bailey, Juerg Schmidli, Christoph Wittmann, Georg Wohlfahrt, Dino Zardi

Bulletin of the American Meteorological Society↗
2022

Direct observations of CO2 emission reductions due to COVID-19 lockdown across European urban districts

Giacomo Nicolini, Gabriele Antoniella, Federico Carotenuto, Andreas Christen, Philippe Ciais, Christian Feigenwinter, Beniamino Gioli, Stavros Stagakis, Erik Velasco, Roland Vogt, Helen Claire Ward, Janet Barlow, Nektarios Chrysoulakis, Pierpaolo Duce, Martin Graus, Carole Helfter, Bert G. Heusinkveld, Leena Järvi, Thomas Karl, Serena Marras, Valéry Masson, Bradley Matthews, Fred Meier, Eiko Nemitz, Simone Sabbatini, Dieter Scherer, Helmut Schume, Costantino Sirca, Gert-Jan Steeneveld, Carolina Vagnoli, Yilong Wang, Alessandro Zaldei, Bo Zheng, Dario Papale

UnitusOpen (Tuscia University)↗
2022

Energy and mass exchange at an urban site in mountainous terrain – the Alpine city of Innsbruck

Helen Claire Ward, Mathias Walter Rotach, Alexander Gohm, M. Graus, Thomas Karl, Maren Haid, Lukas Umek, Thomas Muschinski

Atmospheric chemistry and physics↗
2022

Global Perspective of Drought Impacts on Ozone Pollution Episodes

Yadong Lei, Xu Yue, Hong Liao, Lin Zhang, Hao Zhou, Chenguang Tian, Cheng Gong, Yimian Ma, Yang Cao, Roger Seco, Thomas Karl, Mark J. Potosnak

Environmental Science & Technology↗
2022

Interannual variability of terpenoid emissions in an alpine city

L. Kaser, Arianna Peron, M. Graus, Marcus Striednig, Georg Wohlfahrt, Stanislav Juráň, Thomas Karl

Atmospheric chemistry and physics↗
2022

Modeling Isoprene Emission Response to Drought and Heatwaves Within MEGAN Using Evapotranspiration Data and by Coupling With the Community Land Model

Hui Wang, Xinchen Lu, Roger Seco, Trissevgeni Stavrakou, Thomas Karl, Xiaoyan Jiang, Lianhong Gu, Alex Guenther

Journal of Advances in Modeling Earth Systems↗
2022

Oxygenated volatile organic compounds (VOCs) as significant but varied contributors to VOC emissions from vehicles

Sihang Wang, Bin Yuan, Caihong Wu, Chaomin Wang, Tiange Li, Xianjun He, Yibo Huangfu, Jipeng Qi, Xiaobing Li, Junyu Zheng, Qing’e Sha, Manni Zhu, Keding Lu, Hongli Wang, Thomas Karl, M. Graus, Zibing Yuan, Min Shao

Atmospheric chemistry and physics↗
2021

Combined effects of ozone and drought stress on the emission of biogenic volatile organic compounds from Quercus robur L.

Arianna Peron, L. Kaser, Anne Charlott Fitzky, M. Graus, Heidi Halbwirth, Jürgen Greiner, Georg Wohlfahrt, Boris Rewald, Hans Sandén, Thomas Karl

Biogeosciences↗
2021

Decoupling of urban CO 2 and air pollutant emission reductions during the European SARS-CoV-2 lockdown

Christian Lamprecht, M. Graus, Marcus Striednig, Michael Stichaner, Thomas Karl

Atmospheric chemistry and physics↗
2021

Diversity and Interrelations Among the Constitutive VOC Emission Blends of Four Broad-Leaved Tree Species at Seedling Stage

Anne Charlott Fitzky, Arianna Peron, L. Kaser, Thomas Karl, M. Graus, Danny Tholen, Mario B. Pesendorfer, Maha Mahmoud, Hans Sandén, Boris Rewald

Frontiers in Plant Science↗
2021

First eddy covariance flux measurements of semi-volatile organic compounds with the PTR3-TOF-MS

Lukas Fischer, Martin Breitenlechner, Eva Canaval, Wiebke Scholz, Marcus Striednig, M. Graus, Thomas Karl, Tuukka Petäjä, Markku Kulmala, Armin Hansel

Atmospheric measurement techniques↗
2021

Revisiting Acetonitrile as Tracer of Biomass Burning in Anthropogenic‐Influenced Environments

Yibo Huangfu, Bin Yuan, Sihang Wang, Caihong Wu, Xianjun He, Jipeng Qi, J. A. de Gouw, C. Warneke, Jessica B. Gilman, Armin Wisthaler, Thomas Karl, M. Graus, B. T. Jobson, Min Shao

Geophysical Research Letters↗
2020

A portable, low-cost relaxed eddy accumulation (REA) system for quantifying ecosystem-level fluxes of volatile organics

Chinmoy Sarkar, Andrew A. Turnipseed, Stephen R. Shertz, Thomas Karl, Mark J. Potosnak, J. M. Bai, D. Serça, Damien Bonal, Benoît Burban, Paula Regina Corain Lopes, Oscar Vega, Alex Guenther

Atmospheric Environment↗
2020

Air Quality of the Urban Alps: Innsbruck’s new observatory

Thomas Karl, Alexander Gohm, Mathias Walter Rotach, Helen Claire Ward, M. Graus, Alexander M. Cede, Georg Wohlfahrt, Albin Hammerle, Maren Haid, Martin Tiefengraber, Christian Lamprecht, Johannes Vergeiner, Axel Kreuter, Jochen Wagner, Michael Staudinger

Bulletin of the American Meteorological Society↗
2020

Atmospheric Pollutant Dispersion over Complex Terrain: Challenges and Needs for Improving Air Quality Measurements and Modeling

Lorenzo Giovannini, Enrico Ferrero, Thomas Karl, Mathias Walter Rotach, Chantal Staquet, Silvia Trini Castelli, Dino Zardi

Atmosphere↗
2020

innFLUX – an open-source code for conventional and disjunct eddy covariance analysis of trace gas measurements

Marcus Striednig, M. Graus, T.D. Märk, Thomas Karl

Atmospheric measurement techniques↗
2020

Multi-scale transport and exchange processes in the atmosphere over mountains

Stefano Serafin, Mathias Walter Rotach, M. Arpagaus, Ioana Colfescu, Joan Cuxart, Stephan F. J. De Wekker, M. J. Evans, Vanda Grubı̆sı́c, Norbert Kalthoff, Thomas Karl, Daniel J. Kirshbaum, Manuela Lehner, Stephen D. Mobbs, Alexandre Paci, Elisa Palazzi, Adriana Bailey, Juerg Schmidli, Georg Wohlfahrt, Dino Zardi

innsbruck university press eBooks↗
2020

Ozone exchange within and above an irrigated Californian orchard

J. S. Brown, Metodija M. Shapkalijevski, Maarten Krol, Thomas Karl, Huug G. Ouwersloot, A.F. Moene, Edward G. Patton, Jordi Vilà-Guerau De Arellano

Tellus B↗
2020

Rapid conversion of isoprene photooxidation products in terrestrial plants

Eva Canaval, Dylan B. Millet, Ina Zimmer, Tetyana Nosenko, Elisabeth Georgii, Eva Partoll, Lukas Fischer, Hariprasad D. Alwe, Markku Kulmala, Thomas Karl, Jörg‐Peter Schnitzler, Armin Hansel

Communications Earth & Environment↗
2019

Gross Primary Productivity of Four European Ecosystems Constrained by Joint CO2 and COS Flux Measurements

Felix M. Spielmann, Georg Wohlfahrt, Albin Hammerle, Florian Kitz, Mirco Migliavacca, Giorgio Alberti, Andreas Ibrom, Tarek Sebastian El-Madany, Katharina Gerdel, Gerardo Moreno, Olaf Kolle, Thomas Karl, Alessandro Peressotti, Gemini Delle Vedove

Geophysical Research Letters↗
2019

Studying Urban Climate and Air Quality in the Alps: The Innsbruck Atmospheric Observatory

Thomas Karl, Alexander Gohm, Mathias Walter Rotach, Helen Claire Ward, M. Graus, Alexander M. Cede, Georg Wohlfahrt, Albin Hammerle, Maren Haid, Martin Tiefengraber, Christian Lamprecht, Johannes Vergeiner, Axel Kreuter, Jochen Wagner, Michael Staudinger

Bulletin of the American Meteorological Society↗
2019

The Interplay Between Ozone and Urban Vegetation—BVOC Emissions, Ozone Deposition, and Tree Ecophysiology

Anne Charlott Fitzky, Hans Sandén, Thomas Karl, Silvano Fares, Carlo Calfapietra, Rüdiger Grote, Amélie Saunier, Boris Rewald

Frontiers in Forests and Global Change↗
2018

\\textbf {Emission fluxes of Siloxanes in the Urban Atmosphere}

Thomas Karl

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2018

A MODIS Photochemical Reflectance Index (PRI) as an Estimator of Isoprene Emissions in a Temperate Deciduous Forest

Iolanda Filella, Chao Zhang, Roger Seco, Mark J. Potosnak, Alex Guenther, Thomas Karl, John A. Gamon, Stephen G. Pallardy, Lianhong Gu, Saewung Kim, Manuela Balzarolo, Marcos Fernández‐Martínez, Josep Peñuelas

Remote Sensing↗
2018

Aerosol particles during the Innsbruck Air Quality Study (INNAQS): Fluxes of nucleation to accumulation mode particles in relation to selective urban tracers

M. J. Deventer, Lisa von der Heyden, Christian Lamprecht, M. Graus, Thomas Karl, Andreas Held

Atmospheric Environment↗
2018

Aerosol particles during the Innsbruck Air Quality Study (INNAQS): The impact of transient fluxes on total aerosol number exchange

Lisa von der Heyden, M. J. Deventer, M. Graus, Thomas Karl, Christian Lamprecht, Andreas Held

Atmospheric Environment↗
2018

Constraining nucleation, condensation, and chemistry in oxidation flow reactors using size-distribution measurements and aerosol microphysical modeling

Anna L. Hodshire, Brett B. Palm, M. Lizabeth Alexander, Qijing Bian, Pedro Campuzano‐Jost, Eben S. Cross, Douglas A. Day, Suzane S. de Sá, Alex Guenther, Armin Hansel, James Freeman Hunter, Werner Jud, Thomas Karl, Saewung Kim, Jesse H. Kroll, Jeong‐Hoo Park, Zhe Peng, Roger Seco, JAMES N. M. SMITH, Jose Luis Jimenez, Jeffrey R. Pierce

Atmospheric chemistry and physics↗
2018

Isoprene emission response to drought and the impact on global atmospheric chemistry

Xiaoyan Jiang, Alex Guenther, Mark J. Potosnak, Chris D. Geron, Roger Seco, Thomas Karl, Saewung Kim, Lianhong Gu, Stephen G. Pallardy

Atmospheric Environment↗
2018

Resolving nanoparticle growth mechanisms from size- and time-dependent growth rate analysis

Lukas Pichelstorfer, Dominik Stolzenburg, John Ortega, Thomas Karl, Harri Kokkola, Anton Laakso, Kari E. J. Lehtinen, JAMES N. M. SMITH, Peter H. McMurry, Paul Martin Winkler

Atmospheric chemistry and physics↗
2018

The Innsbruck Atmospheric Observatory (IAO) for Environmental Research in Alpine and Urban Terrain

Thomas Karl, Alexander Gohm, Mathias Walter Rotach, M. Graus, Alexander M. Cede, Martin Tiefengraber, Christian Lamprecht, M. Blumthaler, Michael Staudinger, Paul Martin Winkler, Lukas Strauss

EGUGA↗
2018

Tropospheric HONO distribution and chemistry in the southeastern US

Chunxiang Ye, Xianliang Zhou, Dennis Pu, J. Stutz, James Festa, Max Spolaor, Catalina Tsai, Christopher A. Cantrell, Roy L. Mauldin, A. J. Weinheimer, Rebecca S. Hornbrook, Eric C. Apel, Alex Guenther, L. Kaser, Bin Yuan, Thomas Karl, Julie A. Haggerty, Samuel R. Hall, Kirk Ullmann, JAMES N. M. SMITH, John Ortega

Atmospheric chemistry and physics↗
2018

Urban flux measurements reveal a large pool of oxygenated volatile organic compound emissions

Thomas Karl, Marcus Striednig, M. Graus, Albin Hammerle, Georg Wohlfahrt

Proceedings of the National Academy of Sciences↗
2017

Airborne measurements of isoprene and monoterpene emissions from southeastern U.S. forests

Haofei Yu, Alex Guenther, Dasa Gu, C. Warneke, Chris D. Geron, Allen H. Goldstein, M. Graus, Thomas Karl, L. Kaser, Pawel K. Misztal, Bin Yuan

The Science of The Total Environment↗
2017

Comprehensive characterization of atmospheric organic carbon at a forested site

James Freeman Hunter, Douglas A. Day, Brett B. Palm, Reddy L. N. Yatavelli, Arthur W. H. Chan, L. Kaser, Luca Cappellin, Patrick Lewis Hayes, Eben S. Cross, Anthony J. Carrasquillo, Pedro Campuzano‐Jost, Harald J. Stark, Yunliang Zhao, Thorsten Hohaus, JAMES N. M. SMITH, Armin Hansel, Thomas Karl, Allen H. Goldstein, Alex Guenther, Douglas R. Worsnop, Joel A. Thornton, Colette L. Heald, Jose Luis Jimenez, Jesse H. Kroll

Nature Geoscience↗
2017

Drought impacts on photosynthesis, isoprene emission and atmospheric formaldehyde in a mid-latitude forest

Yiqi Zheng, Nadine Unger, Jovan M. Tadić, Roger Seco, Alex Guenther, Michael P. Barkley, Mark J. Potosnak, Lee Thomas Murray, Anna M. Michalak, Xuemei Qiu, Saewung Kim, Thomas Karl, Lianhong Gu, Stephen G. Pallardy

Atmospheric Environment↗
2017

Secondary organic aerosol formation from in situ OH, O 3 , and NO 3 oxidation of ambient forest air in an oxidation flow reactor

Brett B. Palm, Pedro Campuzano‐Jost, Douglas A. Day, Amber M. Ortega, Juliane L. Fry, Steven S. S Brown, Kyle J. Zarzana, W. P. Dubé, Nicholas L. Wagner, Danielle C. Draper, L. Kaser, Werner Jud, Thomas Karl, Armin Hansel, C. Gutiérrez-Montes, Jose Luis Jimenez

Atmospheric chemistry and physics↗
2017

Springtime ecosystem-scale monoterpene fluxes from Mediterranean pine forests across a precipitation gradient

Roger Seco, Thomas Karl, A. Turnipseed, J. Greenberg, Alex Guenther, Joan Llusià, Josep Peñuelas, Uri Dicken, Eyal Rotenberg, Saewung Kim, Dan Yakir

Agricultural and Forest Meteorology↗
2017

Urban eddy covariance measurements reveal significant missing NOx emissions in Central Europe

Thomas Karl, M. Graus, Marcus Striednig, Christian Lamprecht, Albin Hammerle, Georg Wohlfahrt, A. Held, Lisa von der Heyden, M. J. Deventer, A. Krismer, C. Haun, R. Feichter, James D. Lee

Scientific Reports↗
2017

VOC emission rates over London and South East England obtained by airborne eddy covariance

Adam Vaughan, James D. Lee, Marvin Shaw, Pawel K. Misztal, Stefan Metzger, Massimo Vieno, Brian M. Davison, Thomas Karl, Lucy Jane Carpenter, Alastair Charles Lewis, Ruth M. Purvis, Allen H. Goldstein, C. NICHOLAS HEWITT

Faraday Discussions↗
2016

A new paradigm of quantifying ecosystem stress through chemical signatures

Ben Kravitz, Alex Guenther, Lianhong Gu, Thomas Karl, L. Kaser, Stephen G. Pallardy, Josep Peñuelas, Mark J. Potosnak, Roger Seco

Ecosphere↗
2016

Current estimates of biogenic emissions from eucalypts uncertain for southeast Australia

Kathryn M. Emmerson, I. E. Galbally, Alex Guenther, Clare Paton‐Walsh, Élise-Andrée Guérette, Martin E. Cope, Melita Keywood, Sarah J. Lawson, Suzie B. Molloy, Erin Dunne, Marcus Thatcher, Thomas Karl, Simin D. Maleknia

Atmospheric chemistry and physics↗
2016

Evaluation of regional isoprene emission factors and modeled fluxes in California

Pawel K. Misztal, Jeremy C. Avise, Thomas Karl, Klaus I. Scott, Haflidi H. Jonsson, Alex Guenther, Allen H. Goldstein

Atmospheric chemistry and physics↗
2016

Flux observations of isoprene oxidation products above a South East US forest point to chemical conversions on leaf canopy surface

Pawel K. Misztal, Luping Su, J. Park, Rupert Holzinger, T. Nguyen, A. P. Teng, Jason M. St. Clair, Paul O. Wennberg, John D. Crounse, Roger Seco, Thomas Karl, L. Kaser, Armin Hansel, Eva Canaval, Frank N. Keutsch, J. E. Mak, Alex Guenther, Allen H. Goldstein, Bernhard Mentler, Ben Lepesant, Jörg‐Peter Schnitzler, Eva Partoll

AGUFM↗
2016

In situ secondary organic aerosol formation from ambient pine forest air using an oxidation flow reactor

Brett B. Palm, Pedro Campuzano‐Jost, Amber M. Ortega, Douglas A. Day, L. Kaser, Werner Jud, Thomas Karl, Armin Hansel, James Freeman Hunter, Eben S. Cross, Jesse H. Kroll, Zhe Peng, W. H. Brune, Jose Luis Jimenez

Atmospheric chemistry and physics↗
2016

Numerical modelling strategies for the urban atmosphere: general discussion

Angus Robert MacKenzie, Alison S. Tomlin, Jörg Kleffmann, Thomas Karl, C. NICHOLAS HEWITT, Dwayne Ellis Heard, Karine Sartelet, Roberto Sommariva, Urs Baltensperger, Roy M. Harrison, Sasha Madronich, Gordon B. McFiggans, Spyros Ν. Pandis, John Wenger, Astrid Kiendler‐Scharr, Neil M. Donahue, Rachel E. Dunmore, Ruth M. Doherty, Sarah J. Moller, I. Kilbane‐Dawe, Brian McDonald, Andreas Wahner, Shupeng Zhu, Albert A. Presto, Markus Kalberer, Matthew Hort, James D. Lee, Irina Nikolova, Jose Luis Jimenez, Lisa K. Whalley, Mohammed S. Alam, SKOULOUDIS Andreas nikolaos

Faraday Discussions↗
2016

Rapid cycling of reactive nitrogen in the marine boundary layer

Chunxiang Ye, Xianliang Zhou, Dennis Pu, J. Stutz, James Festa, Max Spolaor, Catalina Tsai, Christopher A. Cantrell, Roy L. Mauldin, Teresa L Campos, A. J. Weinheimer, Rebecca S. Hornbrook, Eric C. Apel, Alex Guenther, L. Kaser, Bin Yuan, Thomas Karl, Julie A. Haggerty, Samuel R. Hall, Kirk Ullmann, JAMES N. M. SMITH, John Ortega, Christoph Knote

Nature↗
2016

Seasonality of isoprenoid emissions from a primary rainforest in central Amazonia

Eliane Gomes Alves, Kolby Jeremiah Jardine, Julio Tóta, Angela B. Jardine, Ana María Yáñez‐Serrano, Thomas Karl, Julia Valentim Tavares, Bruce Nelson, Dasa Gu, Trissevgeni Stavrakou, Scot T. Martin, Paulo Eduardo Artaxo, Antonio Manzi, Alex Guenther

Atmospheric chemistry and physics↗
2016

Simple, stable, and affordable: Towards long-term ecosystem scale flux measurements of VOCs

Janne Rinne, Thomas Karl, Alex Guenther

Atmospheric Environment↗
2016

Speciated measurements of semivolatile and intermediate volatility organic compounds (S/IVOCs) in a pine forest during BEACHON-RoMBAS 2011

Arthur W. H. Chan, Nathan M. Kreisberg, Thorsten Hohaus, Pedro Campuzano‐Jost, Yunliang Zhao, Douglas A. Day, L. Kaser, Thomas Karl, Armin Hansel, A. P. Teng, C. R. Ruehl, D. Sueper, John T. Jayne, Douglas R. Worsnop, Jose Luis Jimenez, Susanne V. Hering, Allen H. Goldstein

Atmospheric chemistry and physics↗
2015

Airborne flux measurements of methane and volatile organic compounds over the Haynesville and Marcellus shale gas production regions

Bin Yuan, L. Kaser, Thomas Karl, M. Graus, Jeff Peischl, Teresa L Campos, Steve Shertz, Eric C. Apel, Rebecca S. Hornbrook, Alan J. Hills, Jessica B. Gilman, B. M. Lerner, C. Warneke, F. Flocke, Thomas B. Ryerson, Alex Guenther, J. A. de Gouw

Journal of Geophysical Research Atmospheres↗
2015

An ecosystem-scale perspective of the net land methanol flux: synthesis of micrometeorological flux measurements

Georg Wohlfahrt, Crist Amelynck, Christof Ammann, Almut Arneth, Ines Bamberger, Allen H. Goldstein, Lianhong Gu, Alex Guenther, Armin Hansel, Bernard Heinesch, Thomas Holst, Lukas Johannes Hörtnagl, Thomas Karl, Quentin Laffineur, A. Neftel, Karena A. McKinney, J. William Munger, Stephen G. Pallardy, Gunnar W. Schade, Roger Seco, Niels Schoon

Atmospheric chemistry and physics↗
2015

Atmospheric benzenoid emissions from plants rival those from fossil fuels

Pawel K. Misztal, C. NICHOLAS HEWITT, J. Wildt, James D. Blande, Allyson S. D. Eller, Silvano Fares, Drew R. Gentner, Jessica B. Gilman, M. Graus, James P. Greenberg, Alex Guenther, Armin Hansel, P. C. Harley, Min Huang, Kolby Jeremiah Jardine, Thomas Karl, L. Kaser, Frank N. Keutsch, Astrid Kiendler‐Scharr, E. Kleist, B. M. Lerner, T. Li, J. Mak, Anke Christine Nölscher, R. Schnitzhofer, Vinayak Sinha, Brenda Thornton, C. Warneke, Frederik Wegener, Christiane Werner, Jonathan Williams, David Robert Worton, N. Yassaa, Allen H. Goldstein

Scientific Reports↗
2015

Characterization of a real-time tracer for isoprene epoxydiols-derived secondary organic aerosol (IEPOX-SOA) from aerosol mass spectrometer measurements

Weiwei Hu, Pedro Campuzano‐Jost, Brett B. Palm, Douglas A. Day, Amber M. Ortega, Patrick Lewis Hayes, Jordan Krechmer, Q. Chen, Mikinori Kuwata, Yingjun J. Liu, Suzane S. de Sá, Karena A. McKinney, Scot T. Martin, Min Hu, Sri Hapsari Budisulistiorini, Matthieu Riva, Jason D. Surratt, Jason M. St. Clair, Gabriel A. Isaacman-VanWertz, Lindsay D. Yee, Allen H. Goldstein, Samara Carbone, Joel F. de Brito, Paulo Eduardo Artaxo, J. A. de Gouw, Abigail R. Koss, Armin Wisthaler, Tomáš Mikoviny, Thomas Karl, L. Kaser, Werner Jud, Armin Hansel, Kenneth S. Docherty, M. Lizabeth Alexander, N. Robinson, Hugh Coe, J. D. Allan, Manjula R. Canagaratna, Fabien Paulot, Jose Luis Jimenez

Atmospheric chemistry and physics↗
2015

Chemistry‐turbulence interactions and mesoscale variability influence the cleansing efficiency of the atmosphere

L. Kaser, Thomas Karl, Bin Yuan, R. L. Mauldin, Christopher A. Cantrell, Alex Guenther, Edward G. Patton, A. J. Weinheimer, Christoph Knote, John J. Orlando, L. K. Emmons, Eric C. Apel, Rebecca S. Hornbrook, Stephen R. Shertz, Kirk Ullmann, Samuel R. Hall, M. Graus, J. A. de Gouw, Xianliang Zhou, Chunxiang Ye

Geophysical Research Letters↗
2015

Contribution from biogenic organic compounds to particle growth during the 2010 BEACHON-ROCS campaign in a Colorado temperate needleleaf forest

Luxi Zhou, Rosa T. Gierens, Andrey Sogachev, D. Mogensen, John Ortega, JAMES N. M. SMITH, P. C. Harley, Anthony J. Prenni, Ezra J. T. Levin, Andrew A. Turnipseed, Anton Rusanen, Sampo Smolander, Alex Guenther, Markku Kulmala, Thomas Karl, Michael H. Boy

Atmospheric chemistry and physics↗
2015

Ecosystem‐scale volatile organic compound fluxes during an extreme drought in a broadleaf temperate forest of the Missouri Ozarks (central USA )

Roger Seco, Thomas Karl, Alex Guenther, Kevin P. Hosman, Stephen G. Pallardy, Lianhong Gu, Chris D. Geron, P. C. Harley, Saewung Kim

Global Change Biology↗
2015

Instrument intercomparison of glyoxal, methyl glyoxal and NO 2 under simulated atmospheric conditions

Ryan M. Thalman, M. T. Baeza‐Romero, S. M. Ball, Esther Borràs, Mark J. S. Daniels, Iain C. A. Goodall, Samuel B. Henry, Thomas Karl, Frank N. Keutsch, S. Kim, J. Mak, P. S. Monks, Amalia Muñoz, John J. Orlando, Salvatore Peppe, Andrew R. Rickard, Milagros Ródenas, P. Sánchez, Roger Seco, Luping Su, Geoffrey S. Tyndall, Mónica Vázquez, Teresa Vera, Eleanor M. Waxman, Rainer Volkamer

Atmospheric measurement techniques↗
2015

Large drought-induced variations in oak leaf volatile organic compound emissions during PINOT NOIR 2012

Chris D. Geron, Ryan Daly, P. C. Harley, Rei A. Rasmussen, Roger Seco, Alex Guenther, Thomas Karl, Lianhong Gu

Chemosphere↗
2015

Methodology for Airborne Quantification of NO x fluxes over Central London and Comparison to Emission Inventories

Adam Vaughan, James D. Lee, Alastair Charles Lewis, Ruth M. Purvis, David C. Carslaw, Pawel K. Misztal, Stefan Metzger, Sean David Beevers, Allen H. Goldstein, C. NICHOLAS HEWITT, Marvin Shaw, Thomas Karl, Brian M. Davison

2015 AGU Fall Meeting↗
2015

Putting Constraints on the Life Cycle of NMVOC based on Ecosystem Scale Flux Measurements

Thomas Karl

EGUGA↗
2015

Quantifying sources and sinks of reactive gases in the lower atmosphere using airborne flux observations

Glenn M. Wolfe, Thomas Frost Hanisco, H. L. Arkinson, T. P. Bui, John D. Crounse, Jonathan M. Dean‐Day, Allen H. Goldstein, Alex Guenther, Samuel R. Hall, L. G. Huey, Daniel J. Jacob, Thomas Karl, P. S. Kim, X. Liu, Margaret R. Marvin, T. Mikoviny, Pawel K. Misztal, Tran B. Nguyen, Jeff Peischl, I. B. Pollack, Thomas B. Ryerson, Jason M. St. Clair, A. P. Teng, Katherine R. Travis, Kirk Ullmann, Paul O. Wennberg, Armin Wisthaler

Geophysical Research Letters↗
2015

Spatially resolved flux measurements of NO x from London suggest significantly higher emissions than predicted by inventories

Adam Vaughan, James D. Lee, Pawel K. Misztal, Stefan Metzger, Marvin Shaw, Alastair Charles Lewis, Ruth M. Purvis, David C. Carslaw, Allen H. Goldstein, C. NICHOLAS HEWITT, Brian M. Davison, Sean David Beevers, Thomas Karl

Faraday Discussions↗
2015

Submicron particle mass concentrations and sources in the Amazonian wet season (AMAZE-08)

Q. Chen, Delphine K. Farmer, Luciana V. Rizzo, Theotonio Mendes Pauliquevis Junior, M. Kuwata, Thomas Karl, Alex Guenther, J. D. Allan, Hugh Coe, Meinrat Otto Andreae, Ulrich Pöschl, Jose Luis Jimenez, Paulo Eduardo Artaxo, S. T. Martin

Atmospheric chemistry and physics↗
2014

Airborne flux measurements of biogenic isoprene over California

Pawel K. Misztal, Thomas Karl, R. J. Weber, H. H. Jonsson, Alex Guenther, Allen H. Goldstein

Atmospheric chemistry and physics↗
2014

Comparable Monoterpene emission from pine forests across 500 mm precipitation gradient in the semi-arid transition zone

Roger Seco, Thomas Karl, A. Turnipseed, J. Greenberg, Alex Guenther, Joan Llusià, Josep Peñuelas, Uri Dicken, Eyal Rotenberg, Shani Rohatyn, Yakir Preisler, Dan Yakir

EGUGA↗
2014

Eddy covariance measurements of isoprene and 232-MBO based on NO+ time-of-flight mass spectrometry

Thomas Karl, L. Kaser, A. Turnipseed

International Journal of Mass Spectrometry↗
2014

Missing peroxy radical sources within a summertime ponderosa pine forest

Glenn M. Wolfe, Christopher A. Cantrell, S. Kim, R. L. Mauldin, Thomas Karl, P. C. Harley, Andrew A. Turnipseed, Weiwei Zheng, F. Flocke, Eric C. Apel, Rebecca S. Hornbrook, Samuel R. Hall, Kirk Ullmann, Samuel B. Henry, Joshua Paul DiGangi, Erin S. Boyle, L. Kaser, R. Schnitzhofer, Armin Hansel, M. Graus, Yoshihiro Nakashima, Yoshizumi Kajii, Alex Guenther, F. N. Keutsch

Atmospheric chemistry and physics↗
2014

New Particle Formation and Growth in an Isoprene-Dominated Ozark Forest: From Sub-5 nm to CCN-Active Sizes

Huan Yu, John Ortega, JAMES N. M. SMITH, Alex Guenther, Vijay Punjaji Kanawade, Yi You, Yiying Liu, Kevin P. Hosman, Thomas Karl, Roger Seco, Chris D. Geron, Stephen G. Pallardy, Lianhong Gu, Jyri Mikkilä, Shan‐Hu Lee

Aerosol Science and Technology↗
2014

Overview of the Manitou Experimental Forest Observatory: site description and selected science results from 2008 to 2013

John Ortega, A. Turnipseed, Alex Guenther, Thomas Karl, Douglas A. Day, David Gochis, J. A. Huffman, Anthony J. Prenni, Ezra J. T. Levin, Sonia M. Kreidenweis, Paul J. DeMott, Yutaka Tobo, Edward G. Patton, Alma Hodžić, Yu Yan Cui, P. C. Harley, Rebecca S. Hornbrook, Eric C. Apel, Russell K. Monson, Allyson S. D. Eller, J. Greenberg, M. C. Barth, Pedro Campuzano‐Jost, Brett B. Palm, Jose Luis Jimenez, Allison C. Aiken, Manvendra K. Dubey, Chris D. Geron, John H. Offenberg, Michael G. Ryan, Paula J. Fornwalt, S. C. Pryor, Frank N. Keutsch, Joshua Paul DiGangi, Arthur W. H. Chan, Allen H. Goldstein, Glenn M. Wolfe, S. Kim, L. Kaser, R. Schnitzhofer, Armin Hansel, Christopher A. Cantrell, Roy L. Mauldin, JAMES N. M. SMITH

Atmospheric chemistry and physics↗
2014

Seasonality of Isoprenoid Vertical Gradient Within a Primary Rainforest in Central Amazonia

Eliane Gomes Alves, Kolby Jeremiah Jardine, Julio Tóta, Angela B. Jardine, Ana María Yáñez‐Serrano, Thomas Karl, Alex Guenther, Julia Valentim Tavares, Bruce Nelson

2014 AGU Fall Meeting↗
2013

A Novel Perovskite structure anode of SOFC for Production of Electricity and Separation of CO from Syngas

Yifei Sun, Guangya Wang, Jing‐Li Luo, Thomas Karl

↗
2013

A novel Whole Air Sample Profiler (WASP) for the quantification of volatile organic compounds in the boundary layer

J. E. Mak, Luping Su, Alex Guenther, Thomas Karl

Atmospheric measurement techniques↗
2013

Airborne Flux Measurements of BVOCs above Californian Oak Forests: Experimental Investigation of Surface and Entrainment Fluxes, OH Densities, and Damköhler Numbers

Thomas Karl, Pawel K. Misztal, Haflidi H. Jonsson, Stephen R. Shertz, Allen H. Goldstein, Alex Guenther

Journal of the Atmospheric Sciences↗
2013

Aircraft based Isoprene and Monoterpene Fluxes in the Southeast U.S

L. Kaser, Bin Yuan, Thomas Karl, Stephen R. Shertz, M. Graus, Pawel K. Misztal, Christopher A. Cantrell, Lee Mauldin, N. Schardt, Eric C. Apel, Alan J. Hills, Rebecca S. Hornbrook, J. A. de Gouw, Alex Guenther

AGUFM↗
2013

Comparison of different real time VOC measurement techniques in a ponderosa pine forest

L. Kaser, Thomas Karl, R. Schnitzhofer, M. Graus, I. S. Herdlinger-Blatt, Joshua Paul DiGangi, B. C. Sive, A. Turnipseed, Rebecca S. Hornbrook, Weiwei Zheng, F. Flocke, Alex Guenther, Frank N. Keutsch, Eric C. Apel, Armin Hansel

Atmospheric chemistry and physics↗
2013

Distributions, Sources and Sinks of biogenic volatile organic compounds in the Southeast U.S. (Invited)

Alex Guenther, Xuan Jade Jiang, L. Kaser, Eric C. Apel, L. K. Emmons, Wenwen Fang, P. C. Harley, Alan J. Hills, Rebecca S. Hornbrook, Edward G. Patton, A. A. Turnipseed, Thomas Karl, Liangxia Su, J. E. Mak, Pawel K. Misztal, Allen H. Goldstein, M. Graus, C. Warneke, Bin Yuan, J. A. de Gouw, Jea-Won Park, Detlev Helmig

AGUFM↗
2013

Emissions of putative isoprene oxidation products from mango branches under abiotic stress

Kolby Jeremiah Jardine, Kimberly T. Meyers, Leif M. Abrell, Eliane Gomes Alves, Ana María Yáñez‐Serrano, JÜRGEN KESSELMEIER, Thomas Karl, Alex Guenther, Claudia Estelle Vickers, Jeffrey Quintin Chambers

Journal of Experimental Botany↗
2013

Evaluation of HO x sources and cycling using measurement-constrained model calculations in a 2-methyl-3-butene-2-ol (MBO) and monoterpene (MT) dominated ecosystem

S. Kim, Glenn M. Wolfe, Lee Mauldin, Christopher A. Cantrell, Alex Guenther, Thomas Karl, A. Turnipseed, J. Greenberg, Samuel R. Hall, Kirk Ullmann, Eric C. Apel, Rebecca S. Hornbrook, Yoshizumi Kajii, Yoshihiro Nakashima, Frank N. Keutsch, Joshua Paul DiGangi, Samuel B. Henry, L. Kaser, R. Schnitzhofer, M. Graus, Armin Hansel, Weiwei Zheng, F. Flocke

Atmospheric chemistry and physics↗
2013

Limited influence of dry deposition of semivolatile organic vapors on secondary organic aerosol formation in the urban plume

Alma Hodžić, Sasha Madronich, Bernard Aumont, J. Lee‐Taylor, Thomas Karl, M. Camredon, Camille Mouchel‐Vallon

Geophysical Research Letters↗
2013

Monoterpene emissions from Pinus halepensis forests in a semi-arid region (Israel)

Roger Seco, Thomas Karl, A. A. Turnipseed, James P. Greenberg, Alex Guenther, Joan Llusià, Josep Peñuelas, S. Kim, Uri Dicken, Eyal Rotenberg, Shani Rohatyn, Yakir Preisler, Dan Yakir

AGUFM↗
2013

Observations of gas- and aerosol-phase organic nitrates at BEACHON-RoMBAS 2011

Juliane L. Fry, Danielle C. Draper, Kyle J. Zarzana, Pedro Campuzano‐Jost, Douglas A. Day, Jose Luis Jimenez, Steven S. S Brown, Ronald Carl Cohen, L. Kaser, Armin Hansel, Luca Cappellin, Thomas Karl, Alma Hodžić, Andrew A. Turnipseed, Christopher A. Cantrell, Barry L. Lefer, Nicole Grossberg

Atmospheric chemistry and physics↗
2013

Observed and modeled ecosystem isoprene fluxes from an oak-dominated temperate forest and the influence of drought stress

Mark J. Potosnak, Lauren LeStourgeon, Stephen G. Pallardy, Kevin P. Hosman, Lianhong Gu, Thomas Karl, Chris D. Geron, Alex Guenther

Atmospheric Environment↗
2013

Photosynthesis-dependent isoprene emission from leaf to planet in a global carbon-chemistry-climate model

Nadine Unger, Kandice Harper, Yiqi Zheng, Nancy Yao-lan Kiang, Igor Aleinov, Almut Arneth, Guy Schurgers, Crist Amelynck, Allen H. Goldstein, Alex Guenther, Bernard Heinesch, C. NICHOLAS HEWITT, Thomas Karl, Quentin Laffineur, Ben Langford, Karena A. McKinney, Pawel K. Misztal, Mark J. Potosnak, Janne Rinne, Shelley N. Pressley, Niels Schoon, D. Serça

Atmospheric chemistry and physics↗
2013

Total OH reactivity measurements in ambient air in a southern Rocky mountain ponderosa pine forest during BEACHON-SRM08 summer campaign

Yoshihiro Nakashima, Shungo Kato, J. Greenberg, P. C. Harley, Thomas Karl, A. Turnipseed, Eric C. Apel, Alex Guenther, Jim Smith, Yoshizumi Kajii

Atmospheric Environment↗
2013

Undisturbed and disturbed above canopy ponderosa pine emissions: PTR-TOF-MS measurements and MEGAN 2.1 model results

L. Kaser, Thomas Karl, Alex Guenther, M. Graus, R. Schnitzhofer, A. Turnipseed, Lukas Fischer, P. C. Harley, Monica Madronich, David Gochis, Frank N. Keutsch, Armin Hansel

Atmospheric chemistry and physics↗
2012

Airborne observations of methane emissions from rice cultivation in the Sacramento Valley of California

Jeff Peischl, Thomas B. Ryerson, J. S. Holloway, M. Trainer, A. E. Andrews, E. Atlas, Donald Ray Blake, Bruce C. Daube, E. J. Dlugokencky, M. L. Fischer, Allen H. Goldstein, Abhinav Guha, Thomas Karl, Jonathan D. Kofler, E. Kosciuch, Pawel K. Misztal, A. E. Perring, I. B. Pollack, G. W. Santoni, Joshua Peter Schwarz, J. Ryan Spackman, Steven C. Wofsy, D. D. Parrish

Journal of Geophysical Research Atmospheres↗
2012

Contribution of leaf and needle litter to whole ecosystem BVOC fluxes

J. Greenberg, Dolores Asensio, Andrew A. Turnipseed, Alex Guenther, Thomas Karl, David Gochis

Atmospheric Environment↗
2012

Evaluation and improvements of two community models in simulating dry deposition velocities for peroxyacetyl nitrate (PAN) over a coniferous forest

Zhiyong Wu, Xuemei Wang, Andrew A. Turnipseed, Fei Chen, Leiming Zhang, Alex Guenther, Thomas Karl, L. G. Huey, Dev Niyogi, Beicheng Xia, Kiran Alapaty

Journal of Geophysical Research Atmospheres↗
2012

Identification of the biogenic compounds responsible for size‐dependent nanoparticle growth

Paul Martin Winkler, John Ortega, Thomas Karl, Luca Cappellin, Hans R. Friedli, Kelley C. Barsanti, Peter H. McMurry, JAMES N. M. SMITH

Geophysical Research Letters↗
2012

Observations of glyoxal and formaldehyde as metrics for the anthropogenic impact on rural photochemistry

Joshua Paul DiGangi, Samuel B. Henry, Aster Kammrath, Erin S. Boyle, L. Kaser, R. Schnitzhofer, M. Graus, Andrew A. Turnipseed, J. H. Park, Robert Jay Weber, Rebecca S. Hornbrook, Christopher A. Cantrell, R. L. Maudlin, S. Kim, Yoshihiro Nakashima, Glenn M. Wolfe, Yoshizumi Kajii, Eric C. Apel, Allen H. Goldstein, Alex Guenther, Thomas Karl, Armin Hansel, Frank N. Keutsch

Atmospheric chemistry and physics↗
2012

On Quantitative Determination of Volatile Organic Compound Concentrations Using Proton Transfer Reaction Time-of-Flight Mass Spectrometry

Luca Cappellin, Thomas Karl, Michael M. Probst, Oksana Ismailova, Paul Martin Winkler, Christos Soukoulis, Eugenio Aprea, T.D. Märk, Flavia Gasperi, Franco Biasioli A

Environmental Science & Technology↗
2012

Organosulfates as Tracers for Secondary Organic Aerosol (SOA) Formation from 2-Methyl-3-Buten-2-ol (MBO) in the Atmosphere

Haofei Zhang, David Robert Worton, Michael Lewandowski, John Ortega, Caitlin L. Rubitschun, Jeong‐Hoo Park, Kasper Vita Kristensen, Pedro Campuzano‐Jost, Douglas A. Day, Jose Luis Jimenez, Mohammed Jaoui, John H. Offenberg, Tadeusz E. Kleindienst, Jessica B. Gilman, W. C. Kuster, J. A. de Gouw, Changhyoun Park, Gunnar W. Schade, A. A. Frossard, Lynn Monica Russell, L. Kaser, Werner Jud, Armin Hansel, Luca Cappellin, Thomas Karl, Marianne Glasius, Alex Guenther, Allen H. Goldstein, John H. Seinfeld, Avram R. Gold, Richard M. Kamens, Jason D. Surratt

Environmental Science & Technology↗
2012

Selective measurements of isoprene and 2-methyl-3-buten-2-ol based on NO + ionization mass spectrometry

Thomas Karl, Armin Hansel, Luca Cappellin, L. Kaser, I. S. Herdlinger-Blatt, Werner Jud

Atmospheric chemistry and physics↗
2011

Analysis of formaldehyde fluxes above a Ponderosa Pine forest measured via eddy-covariance

Joshua Paul DiGangi, S. Henry, Thomas Karl, S Kim, A Turnipseeed, Yoshihiro Nakashima, L. Mauldin, Christopher A. Cantrell, F. Flocke, Julian Mak, Armin Hansel, Yoshizumi Kajii, Alex Guenther, Frank N. Keutsch

eScholarship (California Digital Library)↗
2011

Can a “state of the art” chemistry transport model simulate Amazonian tropospheric chemistry?

Michael P. Barkley, Paul I. Palmer, L. Ganzeveld, Almut Arneth, Daniel Hagberg, Thomas Karl, Alex Guenther, Fabien Paulot, Paul O. Wennberg, Jingqiu Mao, Thomas P. Kurosu, K. Chance, Jean‐François Müller, Isabelle De Smedt, Michel Van Roozendaël, Dan Chen, Yuxuan Wang, Robert M. Yantosca

Journal of Geophysical Research Atmospheres↗
2011

Contrasting organic aerosol particles from boreal and tropical forests during HUMPPA-COPEC-2010 and AMAZE-08 using coherent vibrational spectroscopy

Carlena J. Ebben, Imee Su Martinez, Mona Shrestha, Avram M. Buchbinder, Ashley L. Corrigan, Alex Guenther, Thomas Karl, Tuukka Petäjä, Weihua Song, Sören R. Zorn, Paulo Eduardo Artaxo, Markku Kulmala, Scot T. Martin, Lynn Monica Russell, Jonathan Williams, Franz M. Geiger

Atmospheric chemistry and physics↗
2011

Contributions of primary and secondary biogenic VOC tototal OH reactivity during the CABINEX (Community Atmosphere-Biosphere INteractions Experiments)-09 field campaign

S. Kim, Alex Guenther, Thomas Karl, J. Greenberg

Atmospheric chemistry and physics↗
2011

Deposition fluxes of terpenes over grassland

Ines Bamberger, Lukas Johannes Hörtnagl, T. M. Ruuskanen, R. Schnitzhofer, Markus Müller, M. Graus, Thomas Karl, Georg Wohlfahrt, Armin Hansel

Journal of Geophysical Research Atmospheres↗
2011

Eddy covariance VOC emission and deposition fluxes above grassland using PTR-TOF

T. M. Ruuskanen, Markus Müller, R. Schnitzhofer, Thomas Karl, M. Graus, Ines Bamberger, Lukas Johannes Hörtnagl, Federico Brilli, Georg Wohlfahrt, Armin Hansel

Atmospheric chemistry and physics↗
2011

Emission and deposition of VOC above grassland, eddy covariance fluxes with PTRTOF

T. M. Ruuskanen, Markus Müller, R. Schnitzhofer, Thomas Karl, M. Graus, Ines Bamberger, Lukas Johannes Hörtnagl, Georg Wohlfahrt, Armin Hansel

↗
2011

Emission factors for open and domestic biomass burning for use in atmospheric models

S. K. Akagi, R. J. Yokelson, Christine Wiedinmyer, Matthew James Alvarado, Jeffrey S. Reid, Thomas Karl, John D. Crounse, Paul O. Wennberg

Atmospheric chemistry and physics↗
2011

First direct measurements of formaldehyde flux via eddy covariance: implications for missing in-canopy formaldehyde sources

Joshua Paul DiGangi, Erin S. Boyle, Thomas Karl, P. C. Harley, Andrew A. Turnipseed, S. Kim, Christopher A. Cantrell, R. L. Maudlin, Weiwei Zheng, F. Flocke, Samuel R. Hall, Kirk Ullmann, Yoshihiro Nakashima, Joshua B. Paul, Glenn M. Wolfe, Ankur Rashmikant Desai, Yoshizumi Kajii, Alex Guenther, Frank N. Keutsch

Atmospheric chemistry and physics↗
2011

Quantification of VOC emission rates from the biosphere

C. NICHOLAS HEWITT, Ben Langford, Malcolm Possell, Thomas Karl, Susan Margaret Owen

TrAC Trends in Analytical Chemistry↗
2011

The role of boundary layer dynamics on the diurnal evolution of isoprene and the hydroxyl radical over tropical forests

Jordi Vilà-Guerau De Arellano, Edward G. Patton, Thomas Karl, Kees van den Dries, M. C. Barth, John J. Orlando

Journal of Geophysical Research Atmospheres↗
2011

Within-canopy sesquiterpene ozonolysis in Amazonia

Kolby Jeremiah Jardine, Ana María Yáñez‐Serrano, Almut Arneth, Leif M. Abrell, Angela B. Jardine, Joost L. M. van Haren, Paulo Eduardo Artaxo, Luciana V. Rizzo, FRANÇOISE YOKO ISHIDA, Thomas Karl, JÜRGEN KESSELMEIER, SCOTT REID SALESKA, Travis E. Huxman

Journal of Geophysical Research Atmospheres↗
2011

Within‐plant isoprene oxidation confirmed by direct emissions of oxidation products methyl vinyl ketone and methacrolein

Kolby Jeremiah Jardine, Russell K. Monson, Leif M. Abrell, SCOTT REID SALESKA, Almut Arneth, Angela B. Jardine, FRANÇOISE YOKO ISHIDA, Ana María Yáñez‐Serrano, Paulo Eduardo Artaxo, Thomas Karl, Silvano Fares, Allen H. Goldstein, Francesco Loreto, Travis E. Huxman

Global Change Biology↗
2010

An overview of the Amazonian Aerosol Characterization Experiment 2008 (AMAZE-08)

Scot T. Martin, Meinrat Otto Andreae, Dietrich Althausen, Paulo Eduardo Artaxo, Holger Baars, Stephan Borrmann, Q. Chen, Delphine K. Farmer, Alex Guenther, Sachin S. Gunthe, Jose Luis Jimenez, Thomas Karl, Karla Maria Longo, Antonio Manzi, Thomas G. Muller, Theotonio Mendes Pauliquevis Junior, Markus Dirk Petters, Anthony J. Prenni, Ulrich Pöschl, Luciana V. Rizzo, Johannes Schneider, JAMES N. M. SMITH, Erik Swietlicki, Julio Tóta, Jun Wang, Alfred Wiedensohler, Sören R. Zorn

Atmospheric chemistry and physics↗
2010

Chemical evolution of volatile organic compounds in the outflow of the Mexico City Metropolitan area

Eric C. Apel, L. K. Emmons, Thomas Karl, F. Flocke, Alan J. Hills, Sasha Madronich, J. Lee‐Taylor, Alan Fried, Petter K. A. Weibring, James G. Walega, Dirk A. Richter, Xuexi Tie, Lee Mauldin, Teresa L Campos, A. J. Weinheimer, David J. Knapp, B. C. Sive, Lawrence I. Kleinman, Stephen Springston, R. A. Zaveri, John Ortega, Paul B. Voss, Donald Ray Blake, Angela K. Baker, C. Warneke, D. Welsh-Bon, J. A. de Gouw, Junqing Zheng, Renyi Zhang, J. Rudolph, W. Junkermann, Daniel D. Riemer

Atmospheric chemistry and physics↗
2010

Efficient Atmospheric Cleansing of Oxidized Organic Trace Gases by Vegetation

Thomas Karl, P. C. Harley, L. K. Emmons, Brenda Thornton, Alex Guenther, Chhandak Basu, A. Turnipseed, Kolby Jeremiah Jardine

Science↗
2010

Emissions and ambient distributions of Biogenic Volatile Organic Compounds (BVOC) in a ponderosa pine ecosystem: interpretation of PTR-MS mass spectra

S. Kim, Thomas Karl, Alex Guenther, Geoffrey S. Tyndall, John J. Orlando, P. C. Harley, Rei A. Rasmussen, Eric C. Apel

Atmospheric chemistry and physics↗
2010

First eddy covariance flux measurements by PTR-TOF

Markus Müller, M. Graus, T. M. Ruuskanen, R. Schnitzhofer, Ines Bamberger, L. Kaser, Thorsten Titzmann, Lukas Johannes Hörtnagl, Georg Wohlfahrt, Thomas Karl, Armin Hansel

Atmospheric measurement techniques↗
2010

Global atmospheric budget of acetaldehyde: 3-D model analysis and constraints from in-situ and satellite observations

Dylan B. Millet, Alex Guenther, David A. Siegel, N. B. Nelson, HANWANT BIR SINGH, J. A. de Gouw, C. Warneke, Jonathan Williams, Gunter Eerdekens, Vinayak Sinha, Thomas Karl, F. Flocke, Eric C. Apel, Daniel D. Riemer, Paul I. Palmer, Michael P. Barkley

Atmospheric chemistry and physics↗
2010

The Canopy Horizontal Array Turbulence Study

Edward G. Patton, Thomas W. Horst, Peter P. Sullivan, Donald H. Lenschow, Steven P. Oncley, William O. Brown, Sean P. Burns, Alex Guenther, Andreas Held, Thomas Karl, Shane D. Mayor, Luciana V. Rizzo, Scott M. Spuler, Jielun Sun, Andrew A. Turnipseed, Eugene J. Allwine, Steven L. Edburg, Brian Lamb, Roni Avissar, Ronald J. Calhoun, Jan P. Kleissl, William J Massman, Kyaw Tha Paw U, JEFFREY C. WEIL

Bulletin of the American Meteorological Society↗
2010

VOC Emission and Deposition Eddy Covariance Fluxes above Grassland using PTR-TOF

T. M. Ruuskanen, Markus Müller, R. Schnitzhofer, Thomas Karl, M. Graus, Ines Bamberger, Lukas Johannes Hörtnagl, F. Brilli, Georg Wohlfahrt, Armin Hansel

AGUFM↗
2009

Aerosol properties, in-canopy gradients, turbulent fluxes and VOC concentrations at a pristine forest site in Amazonia

Luciana V. Rizzo, Paulo Eduardo Artaxo, Thomas Karl, Alex Guenther, J. Greenberg

Atmospheric Environment↗
2009

Emissions from biomass burning in the Yucatan

R. J. Yokelson, John D. Crounse, P. F. DeCarlo, Thomas Karl, Shawn P. Urbanski, E. Atlas, Teresa L Campos, Y. Shinozuka, Vladimir N. Kapustin, A. D. Clarke, A. J. Weinheimer, David J. Knapp, D. D. Montzka, J. Holloway, Petter K. A. Weibring, F. Flocke, Weiwei Zheng, D. W. Toohey, Paul O. Wennberg, Christine Wiedinmyer, Lee Mauldin, Alan Fried, Dirk A. Richter, James G. Walega, Jose Luis Jimenez, Kouji Adachi, Peter R. Buseck, Samuel R. Hall, R. E. Shetter

Atmospheric chemistry and physics↗
2009

Emissions from biomass burning in the Yucatan [Discussions]

R. J. Yokelson, John D. Crounse, P. F. DeCarlo, Thomas Karl, Shawn P. Urbanski, E. Atlas, Teresa L Campos, Y. Shinozuka, Vladimir N. Kapustin, A. D. Clarke, A. J. Weinheimer, David J. Knapp, D. D. Montzka, John W. Holloway, Petter K. A. Weibring, F. Flocke, Weiwei Zheng, D. W. Toohey, Paul O. Wennberg, Christine Wiedinmyer, Lee Mauldin, Alan Fried, Dirk A. Richter, James G. Walega, Jose Luis Jimenez, Kouji Adachi, Peter R. Buseck, Samuel R. Hall, R. E. Shetter

Atmospheric chemistry and physics↗
2009

Emissions of volatile organic compounds inferred from airborne flux measurements over a megacity

Thomas Karl, Eric C. Apel, Alma Hodžić, Daniel D. Riemer, Donald Ray Blake, Christine Wiedinmyer

Atmospheric chemistry and physics↗
2009

Mass spectral characterization of submicron biogenic organic particles in the Amazon Basin

Q. Chen, Delphine K. Farmer, Johannes Schneider, Sören R. Zorn, Colette L. Heald, Thomas Karl, Alex Guenther, J. D. Allan, N. Robinson, Hugh Coe, Joel R. Kimmel, Theotonio Mendes Pauliquevis Junior, Stephan Borrmann, Ulrich Pöschl, Meinrat Otto Andreae, Paulo Eduardo Artaxo, Jose Luis Jimenez, Scot T. Martin

Geophysical Research Letters↗
2009

Measurement of atmospheric sesquiterpenes by proton transfer reaction-mass spectrometry (PTR-MS)

S. Kim, Thomas Karl, Detlev Helmig, R. W. Daly, Rei A. Rasmussen, Alex Guenther

Atmospheric measurement techniques↗
2009

Rapid formation of isoprene photo-oxidation products observed in Amazonia

Thomas Karl, Alex Guenther, Andrew A. Turnipseed, Geoffrey S. Tyndall, Paulo Eduardo Artaxo, Scot T. Martin

Atmospheric chemistry and physics↗
2009

Regulated large‐scale annual shutdown of Amazonian isoprene emissions?

Michael P. Barkley, Paul I. Palmer, Isabelle De Smedt, Thomas Karl, Alex Guenther, Michel Van Roozendaël

Geophysical Research Letters↗
2009

Size and composition resolved aerosol fluxes above a pine forest and their response to biogenic chemistry

Eiko Nemitz, Alex Huffmann, Jose Luis Jimenez, Brad Baker, John Thomas Walker, Alice E. Delia, D. W. Toohey, Thomas Karl, Craig Stroud, Alex Guenther

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2009

The use of disjunct eddy sampling methods for the determination of ecosystem level fluxes of trace gases

Andrew A. Turnipseed, Shelley N. Pressley, Thomas Karl, Brian Lamb, Eiko Nemitz, Eugene J. Allwine, William A. Cooper, Stephen R. Shertz, Alex Guenther

Atmospheric chemistry and physics↗
2008

Carbon isotope analysis of acetaldehyde emitted from leaves following mechanical stress and anoxia

Kolby Jeremiah Jardine, Thomas Karl, Manuel Lerdau, P. C. Harley, Alex Guenther, J. E. Mak

Plant Biology↗
2008

Chemical sensing of plant stress at the ecosystem scale

Thomas Karl, Alex Guenther, Andrew A. Turnipseed, Edward G. Patton, Kolby Jeremiah Jardine

Biogeosciences↗
2008

Emissions and Photochemistry of BVOCs in a Ponderosa Pine woodland

S. Kim, Thomas Karl, R. Rasmussen, E. Apel, P. C. Harley, S. Waldo, Scott D. Roberts, Alex Guenther

AGUFM↗
2008

Investigating the sources and atmospheric processing of fine particles from Asia and the Northwestern United States measured during INTEX B

Richard E. Peltier, A. Hecobian, Rodney J. Weber, Andreas Stohl, E. Atlas, Daniel D. Riemer, Donald Ray Blake, Eric C. Apel, Teresa L Campos, Thomas Karl

Atmospheric chemistry and physics↗
2008

New constraints on terrestrial and oceanic sources of atmospheric methanol

Dylan B. Millet, Daniel J. Jacob, Thomas Custer, J. A. de Gouw, Allen H. Goldstein, Thomas Karl, HANWANT BIR SINGH, B. C. Sive, Robert W. Talbot, C. Warneke, Jonathan Williams

Atmospheric chemistry and physics↗
2008

New particle formation in the Front Range of the Colorado Rocky Mountains

Michael H. Boy, Thomas Karl, A. Turnipseed, Roy L. Mauldin, E. Kosciuch, J. Greenberg, J. Rathbone, J. Smith, Andreas Held, Kelley C. Barsanti, Birgit Wehner, Stefan Bauer, Alfred Wiedensohler, Boris Bonn, Markku Kulmala, Alex Guenther

Atmospheric chemistry and physics↗
2008

Plant physiological and environmental controls over the exchange of acetaldehyde between forest canopies and the atmosphere

Kolby Jeremiah Jardine, P. C. Harley, Thomas Karl, Alex Guenther, Manuel Lerdau, J. E. Mak

Biogeosciences↗
2008

The Canopy Horizontal Array Turbulence Study (CHATS)

Edward G. Patton, Thomas W. Horst, Donald H. Lenschow, Peter P. Sullivan, Steven P. Oncley, Sean P. Burns, Alex Guenther, Andreas Held, Thomas Karl, Shane D. Mayor, Luciana V. Rizzo, Scott M. Spuler, Jielun Sun, Andrew A. Turnipseed, Eugene J. Allwine, Steven L. Edburg, Brian T. Lamb, Roni Avissar, Heidi E. Holder, R. Calhoun, Jan P. Kleissl, William J Massman, Kyaw Tha Paw U, JEFFREY C. WEIL

↗
2008

The Canopy Horizontal Array Turbulence Study (CHATS) [presentation]

G. Patton, W. Horst, Donald H. Lenschow, Pierre Edward Sullivan, P. Oncley, P. Burns, B. Guenther, Andreas Held, Thomas Karl, David Mayor, Luciana V. Rizzo, M. Spuler, Jielun Sun, A. Turnipseed, Eugene J. Allwine, Steven L. Edburg, Brian T. Lamb, Roni Avissar, E. Jeff Holder, R. Calhoun, Jan P. Kleissl, William J Massman, Kyaw Tha Paw U, C. Weil, Oren Brown

↗
2008

The tropical forest and fire emissions experiment: laboratory fire measurements and synthesis of campaign data

R. J. Yokelson, Ted J. Christian, Thomas Karl, Alex Guenther

Atmospheric chemistry and physics↗
2007

Development of an Automated Cylindrical Ion Trap Mass Spectrometer for the Determination of Atmospheric Volatile Organic Compounds

Gavin D. Edwards, Paul B. Shepson, John W. Grossenbacher, J. Mitchell Wells, Garth E. Patterson, Dennis J. Barket, Shelley N. Pressley, Thomas Karl, Eric C. Apel

Analytical Chemistry↗
2007

Process-based estimates of terrestrial ecosystem isoprene emissions: incorporating the effects of a direct CO 2 -isoprene interaction

Almut Arneth, Ülo Niinemets, Shelley N. Pressley, Jaana K. Bäck, P. Hari, Thomas Karl, Steffen M. Noe, Iain Colin Prentice, D. Serça, Thomas Hickler, Annett Wolf, Benjamin Smith

Atmospheric chemistry and physics↗
2007

Process-based estimates of terrestrial ecosystem isoprene emissions: incorporating the effects of a direct CO2-isoprene interaction

Almut Arneth, Ülo Niinemets, Shelley N. Pressley, Jaana K. Bäck, Hari, Pertti, Thomas Karl, Steffen M. Noe, Iain Colin Prentice, D. Serça, Thomas Hickler, Annett Wolf, Benjamin Smith

Repository for Publications and Research Data (ETH Zurich)↗
2007

Relevance of Several Nucleation Theories in Different Environments

Michael H. Boy, Boris Bonn, J. Kazil, Ned Lovejoy, A. Turnipseed, J. Greenberg, Thomas Karl, Lee Mauldin, Edward Kusciuch, Jim Smith, Kelly Barsanti, Alex Guenther, Birgit Wehner, Olaf Hellmuth, Holger Siebert, Stefan Bauer, Alfred Wiedensohler, Markku Kulmala

Springer eBooks↗
2007

The tropical forest and fire emissions experiment: Emission, chemistry, and transport of biogenic volatile organic compounds in the lower atmosphere over Amazonia

Thomas Karl, Alex Guenther, R. J. Yokelson, J. Greenberg, Mark J. Potosnak, Donald Ray Blake, Paulo Eduardo Artaxo

Journal of Geophysical Research Atmospheres↗
2007

The Tropical Forest and Fire Emissions Experiment: method evaluation of volatile organic compound emissions measured by PTR-MS, FTIR, and GC from tropical biomass burning

Thomas Karl, Ted J. Christian, R. J. Yokelson, Paulo Eduardo Artaxo, W. M. Hao, Alex Guenther

Atmospheric chemistry and physics↗
2007

The Tropical Forest and Fire Emissions Experiment: overview and airborne fire emission factor measurements

R. J. Yokelson, Thomas Karl, Paulo Eduardo Artaxo, Donald Ray Blake, Ted J. Christian, DAVID W. T. GRIFFITH, Alex Guenther, W. M. Hao

Atmospheric chemistry and physics↗
2007

Towards an Understanding of Atmospheric Methanol

Dylan B. Millet, Daniel J. Jacob, J. A. de Gouw, C. Warneke, J. S. Holloway, Donald Ray Blake, Thomas Karl, Thaís Oliveira Campos, HANWANT BIR SINGH, Glenn S. Diskin

AGUFM↗
2006

Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature)

Alex Guenther, Thomas Karl, P. C. Harley, Christine Wiedinmyer, Paul I. Palmer, Chris D. Geron

Atmospheric chemistry and physics↗
2006

Volatile organic emissions from the distillation and pyrolysis of vegetation

J. Greenberg, Hans R. Friedli, Alex Guenther, David Roy Hanson, P. C. Harley, Thomas Karl

Atmospheric chemistry and physics↗
2005

Biogenic volatile organic compound emissions from desert vegetation of the southwestern US

Chris D. Geron, Alex Guenther, J. Greenberg, Thomas Karl, Rei A. Rasmussen

Atmospheric Environment↗
2005

Coupling between Land Ecosystems and the Atmospheric Hydrologic Cycle through Biogenic Aerosol Pathways

M. C. Barth, J. P. McFadden, Jielun Sun, Christine Wiedinmyer, P. Y. Chuang, Don R. Collins, Robert Griffin, Michael Hannigan, Thomas Karl, Si‐Wan Kim, Sonia Lasher‐Trapp, Samuel Levis, M. E. Litvak, N. M. Mahowald, Katharine F. Moore, Sreela Nandi, Eiko Nemitz, Athanasios Nenes, Mark J. Potosnak, Timothy M. Raymond, JAMES N. M. SMITH, Christopher J. Still, Craig Stroud

Bulletin of the American Meteorological Society↗
2005

Role of canopy‐scale photochemistry in modifying biogenic‐atmosphere exchange of reactive terpene species: Results from the CELTIC field study

Craig Stroud, Paul A. Makar, Thomas Karl, Alex Guenther, Chris D. Geron, Andrew A. Turnipseed, Eiko Nemitz, Brad Baker, Mark J. Potosnak, José D. Fuentes

Journal of Geophysical Research Atmospheres↗
2005

Senescing grass crops as regional sources of reactive volatile organic compounds

Thomas Karl, Frans J. M. Harren, C. Warneke, J. A. de Gouw, C. Charles Grayless, Ray Fall

Journal of Geophysical Research Atmospheres↗
2005

The bi-directional exchange of oxygenated VOCs between a loblolly pine (Pinus taeda) plantation and the atmosphere

Thomas Karl, P. C. Harley, Alex Guenther, Rei A. Rasmussen, Bradly M. Baker, Kolby Jeremiah Jardine, Eiko Nemitz

Atmospheric chemistry and physics↗
2005

The bi-directional exchange of oxygenated VOCs between a loblolly pine (Pinus taeda) plantation and the atmosphere

Thomas Karl, P. C. Harley, Alex Guenther, Robin Rasmussen, Bradly M. Baker, K. Jardine, Eiko Nemitz

HAL (Le Centre pour la Communication Scientifique Directe)↗
2005

The bi-directional exchange of oxygenated VOCs between a loblolly pine (Pinus taeda) plantation and the atmosphere

Thomas Karl

eScholarship (California Digital Library)↗
2004

Atmospheric variability of biogenic VOCs in the surface layer measured by proton-transfer-reaction mass spectrometry

Thomas Karl, Alex Guenther

International Journal of Mass Spectrometry↗
2004

Exchange processes of volatile organic compounds above a tropical rain forest: Implications for modeling tropospheric chemistry above dense vegetation

Thomas Karl, Mark J. Potosnak, Alex Guenther, Deborah A. Clark, John Thomas Walker, Jeffrey D. Herrick, Chris D. Geron

Journal of Geophysical Research Atmospheres↗
2004

Hydrocarbon source signatures in Houston, Texas: Influence of the petrochemical industry

B. T. Jobson, Carl M. Berkowitz, W. C. Kuster, Paul D. Goldan, E. J. Williams, Frederick C. Feshenfeld, Eric C. Apel, Thomas Karl, William A. Lonneman, Daniel D. Riemer

Journal of Geophysical Research Atmospheres↗
2004

Source Identification of Volatile Organic Compounds in Houston, Texas

Weixiang Zhao, Philip Karl Hopke, Thomas Karl

Environmental Science & Technology↗
2003

Intercomparison of Volatile Organic Carbon Measurement Techniques and Data at La Porte during the TexAQS2000 Air Quality Study

W. C. Kuster, B. T. Jobson, Thomas Karl, Daniel D. Riemer, Eric C. Apel, Paul D. Goldan, F. C. Fehsenfeld

Environmental Science & Technology↗
2003

Liquid-gas partition coefficients of volatile organic compounds : using proton-transfer-reaction mass-spectrometry (PTR-MS)

Thomas Karl, Chahan Yeretzian, Alfons Jordan, W. Lindinger

Zürcher Hochschule für Angewandte Wissenschaften digital collection (Zurich University of Applied Sciences)↗
2003

Seasonal variation of biogenic VOC emissions above a mixed hardwood forest in northern Michigan

Thomas Karl, Alex Guenther, Christoph Spirig, Armin Hansel, Ray Fall

Geophysical Research Letters↗
2003

Use of proton‐transfer‐reaction mass spectrometry to characterize volatile organic compound sources at the La Porte super site during the Texas Air Quality Study 2000

Thomas Karl, B. T. Jobson, W. C. Kuster, E. J. Williams, J. Stutz, R. E. Shetter, Samuel R. Hall, Paul D. Goldan, Fred C. Fehsenfeld, W. Lindinger

Journal of Geophysical Research Atmospheres↗
2002

Dynamic measurements of partition coefficients using proton-transfer-reaction mass spectrometry (PTR–MS)

Thomas Karl, Chahan Yeretzian, Alfons Jordan, W. Lindinger

International Journal of Mass Spectrometry↗
2002

On-line analysis of the 13 CO 2 labeling of leaf isoprene suggests multiple subcellular origins of isoprene precursors

Thomas Karl, Ray Fall, Todd N. Rosenstiel, Peter Prazeller, Birgitte Romme Larsen, Guenther Seufert, W. Lindinger

Planta↗
2002

Sensitivity and specificity of atmospheric trace gas detection by proton-transfer-reaction mass spectrometry

J. A. de Gouw, C. Warneke, Thomas Karl, Gunter Eerdekens, Carina van der Veen, Ray Fall

International Journal of Mass Spectrometry↗
2002

Trace gas monitoring at the Mauna Loa Baseline Observatory using Proton-Transfer Reaction Mass Spectrometry

Thomas Karl, Armin Hansel, T.D. Märk, W. Lindinger, David Hoffmann

International Journal of Mass Spectrometry↗
2002

Transient releases of acetaldehyde from tree leaves − products of a pyruvate overflow mechanism?

Thomas Karl, Abigale J. Curtis, Todd N. Rosenstiel, Russell K. Monson, Ray Fall

Plant Cell & Environment↗
2002

Virtual disjunct eddy covariance measurements of organic compound fluxes from a subalpine forest using proton transfer reaction mass spectrometry

Thomas Karl, Christoph Spirig, Janne Rinne, Craig Stroud, P. Prevost, J. Greenberg, Ray Fall, Alex Guenther

Atmospheric chemistry and physics↗
2001

Biogenic C5 VOCs: release from leaves after freeze–thaw wounding and occurrence in air at a high mountain observatory

Ray Fall, Thomas Karl, Alfons Jordan, W. Lindinger

Atmospheric Environment↗
2001

Eddy covariance measurement of biogenic oxygenated VOC emissions from hay harvesting

Thomas Karl

Atmospheric Environment↗
2001

Eddy covariance measurements of oxygenated volatile organic compound fluxes from crop harvesting using a redesigned proton‐transfer‐reaction mass spectrometer

Thomas Karl, Alex Guenther, Christian Lindinger, Alfons Jordan, Ray Fall, W. Lindinger

Journal of Geophysical Research Atmospheres↗
2001

Environmental, food and medical applications of proton-transfer-reaction mass spectrometry (PTR-MS)

W. Lindinger, Ray Fall, Thomas Karl

Advances in gas phase ion chemistry↗
2001

High concentrations of reactive biogenic VOCs at a high altitude site in late autumn

Thomas Karl, Ray Fall, Paul J. Crutzen, Alfons Jordan, W. Lindinger

Geophysical Research Letters↗
2001

Human breath isoprene and its relation to blood cholesterol levels: new measurements and modeling

Thomas Karl, Peter Prazeller, Dagmar Mayr, Alfons Jordan, Josef Rieder, Ray Fall, W. Lindinger

Journal of Applied Physiology↗
2001

On-Line Analysis of Reactive VOCs from Urban Lawn Mowing

Thomas Karl, Ray Fall, Alfons Jordan, W. Lindinger

Environmental Science & Technology↗
2001

Variability-lifetime relationship of VOCs observed at the Sonnblick Observatory 1999—estimation of HO-densities

Thomas Karl, Paul J. Crutzen, Michael Mandl, Michael Staudinger, Alex Guenther, Alfons Jordan, Ray Fall, W. Lindinger

Atmospheric Environment↗
1999

Acetone, methanol, and other partially oxidized volatile organic emissions from dead plant matter by abiological processes: Significance for atmospheric HOx chemistry

C. Warneke, Thomas Karl, Helmut Judmaier, Armin Hansel, Alfons Jordan, W. Lindinger, Paul J. Crutzen

Global Biogeochemical Cycles↗
1999

PTR-MS real time monitoring of the emission of volatile organic compounds during postharvest aging of berryfruit

A. Boschetti, Franco Biasioli A, M. van Opbergen, C. Warneke, Alfons Jordan, Rupert Holzinger, Peter Prazeller, Thomas Karl, Armin Hansel, W. Lindinger, Salvatore Iannotta

Postharvest Biology and Technology↗
1999

Volatile organic compounds emitted after leaf wounding: On‐line analysis by proton‐transfer‐reaction mass spectrometry

Ray Fall, Thomas Karl, Armin Hansel, Alfons Jordan, W. Lindinger

Journal of Geophysical Research Atmospheres↗
1998

Quantification of passive smoking using proton-transfer-reaction mass spectrometry

Peter Prazeller, Thomas Karl, Alfons Jordan, Rupert Holzinger, Armin Hansel, W. Lindinger

International Journal of Mass Spectrometry↗