Thomas Karl

24.7k total citations · 2 hit papers
152 papers, 13.4k citations indexed

About

Thomas Karl is a scholar working on Atmospheric Science, Global and Planetary Change and Health, Toxicology and Mutagenesis. According to data from OpenAlex, Thomas Karl has authored 152 papers receiving a total of 13.4k indexed citations (citations by other indexed papers that have themselves been cited), including 133 papers in Atmospheric Science, 87 papers in Global and Planetary Change and 50 papers in Health, Toxicology and Mutagenesis. Recurrent topics in Thomas Karl's work include Atmospheric chemistry and aerosols (132 papers), Plant responses to elevated CO2 (47 papers) and Air Quality and Health Impacts (43 papers). Thomas Karl is often cited by papers focused on Atmospheric chemistry and aerosols (132 papers), Plant responses to elevated CO2 (47 papers) and Air Quality and Health Impacts (43 papers). Thomas Karl collaborates with scholars based in United States, Austria and Germany. Thomas Karl's co-authors include Alex Guenther, Christine Wiedinmyer, P. C. Harley, Chris Geron, Paul I. Palmer, Ray Fall, R. J. Yokelson, W. Lindinger, Alfons Jordan and Armin Hansel and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and SHILAP Revista de lepidopterología.

In The Last Decade

Thomas Karl

149 papers receiving 13.1k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

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

2006 3.4k citations Alex Guenther, Thomas Karl et al. Atmospheric chemistry and physics profile →
Emission factors for open and domestic biomass burning for use in atmospheric models

2011 1.4k citations S. K. Akagi, R. J. Yokelson et al. Atmospheric chemistry and physics profile →

Peers

Countries citing papers authored by Thomas Karl

Since Specialization

Citations

This map shows the geographic impact of Thomas Karl's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Thomas Karl with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Thomas Karl more than expected).

Fields of papers citing papers by Thomas Karl

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas Karl. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Thomas Karl. The network helps show where Thomas Karl may publish in the future.

Co-authorship network of co-authors of Thomas Karl

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas Karl. A scholar is included among the top collaborators of Thomas Karl based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Thomas Karl. Thomas Karl is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Flux measurements of NOx, O3 and Ox: Emission characteristics, inventory validation and titration effects 2025 ·Environmental Pollution ·Xiaoxiao Zhang, Bin Yuan, Yibo Huangfu, Huizhi Liu, Thomas Karl, Ming Chang, Shiyi Chen, Tao Song, Jintai Lin, Guannan Geng, Hongjuan Li, Eran Tas	0
2	Deciphering anthropogenic and biogenic contributions to selected non-methane volatile organic compound emissions in an urban area 2024 ·Atmospheric chemistry and physics ·(unknown), M. Graus, Marcus Striednig, (unknown), Georg Wohlfahrt, Thomas Karl	9
3	Energy and mass exchange at an urban site in mountainous terrain – the Alpine city of Innsbruck 2022 ·Atmospheric chemistry and physics ·Helen C. Ward, Mathias W. Rotach, Alexander Gohm, M. Graus, Thomas Karl, (unknown), (unknown), (unknown)	10
4	First Eddy Covariance Flux Measurements of Semi Volatile Organic Compounds with the PTR3-TOF-MS 2021 ·Lukas Fischer, Martin Breitenlechner, (unknown), Wiebke Scholz, Marcus Striednig, M. Graus, Thomas Karl, Tuukka Petäjä, Markku Kulmala, Armin Hansel	1
5	First eddy covariance flux measurements of semi-volatile organic compounds with the PTR3-TOF-MS 2021 ·Atmospheric measurement techniques ·Lukas Fischer, Martin Breitenlechner, (unknown), Wiebke Scholz, Marcus Striednig, M. Graus, Thomas Karl, Tuukka Petäjä, Markku Kulmala, Armin Hansel	6
6	Atmospheric Pollutant Dispersion over Complex Terrain: Challenges and Needs for Improving Air Quality Measurements and Modeling 2020 ·Atmosphere ·Lorenzo Giovannini, Enrico Ferrero, Thomas Karl, Mathias W. Rotach, Chantal Staquet, Silvia Trini Castelli, Dino Zardi	72
7	Rapid conversion of isoprene photooxidation products in terrestrial plants 2020 ·Communications Earth & Environment ·(unknown), Dylan B. Millet, Ina Zimmer, (unknown), Elisabeth Georgii, Eva Partoll, Lukas Fischer, Hariprasad D. Alwe, Markku Kulmala, Thomas Karl, Jörg‐Peter Schnitzler, Armin Hansel	18
8	Gross Primary Productivity of Four European Ecosystems Constrained by Joint CO₂ and COS Flux Measurements 2019 ·Geophysical Research Letters ·Felix M. Spielmann, Georg Wohlfahrt, Albin Hammerle, Florian Kitz, Mirco Migliavacca, Giorgio Alberti, Andreas Ibrom, Tarek S. El‐Madany, (unknown), Gerardo Moreno, Olaf Kolle, Thomas Karl, Alessandro Peressotti, Gemini Delle Vedove	37
9	Secondary organic aerosol formation from in situ OH, O ₃ , and NO ₃ oxidation of ambient forest air in an oxidation flow reactor 2017 ·Atmospheric chemistry and physics ·Brett B. Palm, Pedro Campuzano‐Jost, Douglas A. Day, A. M. Ortega, Juliane L. Fry, Steven S. Brown, Kyle J. Zarzana, W. P. Dubé, N. L. Wagner, Danielle C. Draper, L. Kaser, Werner Jud, Thomas Karl, Armin Hansel, C. Gutiérrez-Montes, J. L. Jiménez	54
10	In situ secondary organic aerosol formation from ambient pine forest air using an oxidation flow reactor 2016 ·Atmospheric chemistry and physics ·Brett B. Palm, Pedro Campuzano‐Jost, A. M. Ortega, Douglas A. Day, L. Kaser, Werner Jud, Thomas Karl, Armin Hansel, (unknown), Eben S. Cross, Jesse H. Kroll, Zhe Peng, W. H. Brune, J. L. Jiménez	124
11	Speciated measurements of semivolatile and intermediate volatility organic compounds (S/IVOCs) in a pine forest during BEACHON-RoMBAS 2011 2016 ·Atmospheric chemistry and physics ·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, D. R. Worsnop, J. L. Jiménez, Susanne V. Hering, Allen H. Goldstein	30
12	Ecosystem‐scale volatile organic compound fluxes during an extreme drought in a broadleaf temperate forest of the Missouri Ozarks (central USA ) 2015 ·Global Change Biology ·Roger Seco, Thomas Karl, Alex Guenther, Kevin P. Hosman, Stephen G. Pallardy, Lianhong Gu, Chris Geron, P. C. Harley, Saewung Kim	80
13	Contribution from biogenic organic compounds to particle growth during the 2010 BEACHON-ROCS campaign in a Colorado temperate needleleaf forest 2015 ·Atmospheric chemistry and physics ·Luxi Zhou, Rosa Gierens, Andrey Sogachev, D. Mogensen, John Ortega, James N. Smith, P. C. Harley, A. J. Prenni, Ezra J. T. Levin, Andrew A. Turnipseed, Anton Rusanen, Sampo Smolander, Alex Guenther, Markku Kulmala, Thomas Karl, Michael Boy	14
14	Observations of gas- and aerosol-phase organic nitrates at BEACHON-RoMBAS 2011 2013 ·Atmospheric chemistry and physics ·Juliane L. Fry, Danielle C. Draper, Kyle J. Zarzana, Pedro Campuzano‐Jost, Douglas A. Day, J. L. Jiménez, Steven S. Brown, R. C. Cohen, L. Kaser, Armin Hansel, Luca Cappellin, Thomas Karl, Alma Hodžić, Andrew A. Turnipseed, C. A. Cantrell, B. L. Lefer, N. Grossberg	126
15	A novel Whole Air Sample Profiler (WASP) for the quantification of volatile organic compounds in the boundary layer 2013 ·Atmospheric measurement techniques ·Julian Mak, L. Su, Alex Guenther, Thomas Karl	6
16	Characterizing the Amount and Chemistry of Biogenic SOA Formation from Pine Forest Air Using a Flow Reactor 2013 ·AGU Fall Meeting Abstracts ·Brett B. Palm, A. M. Ortega, Pedro Campuzano‐Jost, Douglas A. Day, (unknown), Kyle J. Zarzana, Danielle C. Draper, Steven S. Brown, L. Kaser, Thomas Karl, Werner Jud, (unknown), Alma Hodžić, W. P. Dubé, N. L. Wagner, W. H. Brune, J. L. Jiménez	1
17	Intercomparison of Formaldehyde Measurements during BEACHON ROCS 2010 2011 ·AGU Fall Meeting Abstracts ·L. Kaser, Joshua P. DiGangi, R. Schnitzhofer, I. S. Herdlinger-Blatt, Thomas Karl, M. Graus, A. Turnipseed, Frank N. Keutsch, (unknown)	0
18	Emission factors for open and domestic biomass burning for use in atmospheric models breakdown → 2011 ·Atmospheric chemistry and physics ·S. K. Akagi, R. J. Yokelson, Christine Wiedinmyer, (unknown), Jeffrey S. Reid, Thomas Karl, John D. Crounse, P. O. Wennberg	1410
19	Revisiting the dry depositional sink of oxidized organic vapors to vegetation 2010 ·EGUGA ·Thomas Karl, P. C. Harley, L. K. Emmons, (unknown), Alex Guenther, Chhandak Basu, A. Turnipseed, Kolby Jardine	2
20	Volatile organic emissions from the distillation and pyrolysis of vegetation 2005 ·J. Greenberg, H. Friedli, Alex Guenther, David R. Hanson, P. C. Harley, Thomas Karl	15

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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