Regional air pollution and global climate change are critical challenges to the whole human society, and impact profoundly on economy and lives of human beings. One of most important uncertainties in the relevant researches depends on the accuracy of the source estimations on major air pollutants and their precursors.

My long-range goal is to pursue a career in academia as a ‘life-minded’ environmental scientist who understands how the air quality varies on both regional and global scales and how our lives are thereby affected. In the previous researches, I integrated laboratory, outfield, airborne and satellite observations to quantitively estimate multi-scale Volatile Organic Compounds (VOCs) and Nitrogen Oxides (NOx) emissions, and investigated their impacts with numerical modeling.

At present I am interested in the sensitivity of air quality and climate change on VOC emissions, and processes controlling the Biosphere-Atmosphere interactions. Specific research interests include:

  • Trace gas measurements
  • Air pollutant emissions
  • Satellite remote sensing
  • Numerical modeling


  • Ph.D., Earth and Atmospheric Sciences, Georgia Institute of Technology, 2014
  • M.S., Earth and Atmospheric Sciences, Georgia Institute of Technology, 2010
  • M.S., Environmental Science, Peking University, 2007
  • B.S., Chemistry, Nanjing University, 2004


  • Assistant Professor, Hong Kong University of Science and Technology, Mar 2019~
  • Assistant Project Scientist, University of California, Irvine, May 2018~Feb 2019
  • Postdoctoral Scholar, University of California, Irvine, Sep 2015~Apr 2017
  • Post Doctorate Research Associate, Pacific Northwest National Laboratory, May 2014~Sep 2015 & May 2017~Apr 2018



  • D. Gu, J. Shilling, A. Guenther, R. Lindenmaier, A. Ahkami, L. Li, R. Seco, S. Nagalingam, S. Kim, D. Jeong, D. Sanchez, and G. Myer. VOC Metabolite Emissions from the Brachypodium plants under drought stress. To be submitted.
  • D. Gu, A. B. Guenther, J. Shilling, S. Kim, R. Seco, M. Huang, C. Zhao, S. Martin, P. Artaxo, J. Tota, E. Alves, Y. Liu, and Z. Hu. Effectivity of atmospheric oxidation capacity by hydroxyl radical in tropical forest. In preparation.
  • D. Gu, A. B. Guenther, R. Seco, S. Kim, D. Jeong, D. Sanchez, Y.R. Lee, S. Batalha, F. Khalaj, S. Nagalingam, and E. Xiong. Usual and unusual biogenic volatile organic compounds observed during KORUS-AQ campaign. In preparation.
  • M. Shrivastava, M. Andreae, P. Artaxo, H. Barbosa, L. Berg, J. Brito, J. Ching, R. Easter, J. Fan, J. Fast, Z. Feng, J. Fuentes, M. Glasius, A. Goldstein, E. Gomes, H. Gomes, D. Gu, A. Guenther, S. Jathar, S. Kim, Y. Liu, S. Lou, S. Martin, V. McNeill, A. Medeiros, S. de Sá, J. Shilling, S. Springston, R.F. Souza, J. Thornton, G. Isaacman-VanWertz, L. Yee, R. Ynoue, R. Zaveri, A. Zelenyuk, C. Zhao. Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest. Nature Communications, accepted.
  • C. Batista, J. Ye, I. Ribeiro, P. Guimarães, A. Medeiros, R. Barbosa, R. Oliveira, S. Duvoisin Jr., K. Jardine, D. Gu, A. Guenther, K. McKinney, L. Martins, R. A. F. Souza, S. Martin. Heterogeneity in isoprene concentrations in the near-canopy atmosphere over different forest sub-types in central Amazonia. Nature Communications, submitted.
  • S. Kim, A. Guenther, R. Seco, D. Gu, D. Sanchez, D. Jeong, Y. Lee, J. Mak, L. Su, D. Kim, J. Danbi; Ahn, Y. Lee, T. McGee, J. Sullivan, R. Long, W. Brune, A. Thames, A. Wisthaler, M. Muller, T. Mikoviny, A. Weinheimer, M. Yang, J. Woo, S. Kim, H. Park. Fast oxidation of reactive gases in the lower troposphere above a forest downwind of an Asian megacity. Environmental Science & Technology, in review.
  • L. Li, A. Guenther, S. Xie, D. Gu, R. Seco, S. Nagalingam, D. Yan. Evaluation of semi-static enclosure technique for rapid surveys of biogenic volatile organic compounds (BVOCs) emission measurements. Agricultural and Forest Meteorology, in review.
  • K. McKinney, D. Wang, J. Ye, J. de Fouchier, P. Guimarães, C. Batista, R. Souza, E. Alves, D. Gu, A. Guenther, S. Martin. A sampler for atmospheric volatile organic compounds by copter unmanned aerial vehicles, Atmos. Meas. Tech. Discuss.,, in review, 2018.
  • D. Jeong, R. Seco, D. Gu, Y. Lee, B. Nault, C. Knote, T. Mcgee, J. Sullivan, J. Jimenez, P. Campuzano-Jost, D. Blake, D. Sanchez, A. Guenther, D. Tanner, L. Huey, R. Long, B. Anderson, S. Hall, K. Ullmann, H. Shin, S. Herndon, Y. Lee, D. Kim, J. Ahn, S. Kim. Integration of Airborne and Ground Observations of Nitryl Chloride in the Seoul Metropolitan Area and the Implications on Regional Oxidation Capacity During KORUS-AQ 2016. Atmos. Chem. Phys. Discuss.,, in review, 2018.


  • F. Santos, K. Longo, A. Guenther, S. Kim, D. Gu, D. Oram, G. Forster, J. Lee, J. Hopkins, J. Brito, and S. Freitas. Biomass burning emission disturbances of isoprene oxidation in a tropical forest. Atmospheric Chemistry and Physics, 18, 12715-12734,, 2018.
  • E. Alves, J. Tóta, A. Turnipseed, A. Guenther, J. Bustillos, R. Santana, G. Cirino, J. Tavares, B. Nelson, R. Souza, D. Gu, T. Stavrakou, D. Adams, J. Wu, S. Saleska, and A. Manzi. Leaf phenology as one important driver of seasonal changes in isoprene emission in central Amazonia. Biogeosciences, 15, 4019-4032,, 2018.
  • W. H. Chen, A. B. Guenther, X. M. Wang, Y. Chen, D. Gu, M. Chang, S. Z. Zhou, L. L. Wu, Y. Q. Zhang. Regional to global biogenic isoprene emission responses to changes in vegetation from 2000 to 2015. Journal of Geophysical Research: Atmospheres, 123, 3757–3771, doi:10.1002/ 2017JD027934, 2018.
  • D. Gu, A. B. Guenther, J. Shilling, H. Yu, M. Huang, C. Zhao, Q. Yang, S. Martin, P. Artaxo, S. Kim, R. Seco, T. Stavrakou, K. Longo, J. Tota, R. A. de Souza, O. Vega, Y. Liu, M. Shrivastava, E. Alves, F. Santos, G. Leng and Z. Hu. Airborne observations reveal elevational gradient in tropical forest isoprene emissions. Nature Communications, 8, 15541, doi:10.1038/ncomms15541, 2017.
  • H. Yu, A. Guenther, D. Gu, C. Warneke, J. DeGouw, C. Geron, A. Goldstein, T. Karl, L. Kaser, P. Misztal, and B. Yuan. Airborne measurements of isoprene and monoterpene emissions from southeastern U.S. forests. Science of the Total Environment, 595, 149-158, doi:10.1016/j.scitotenv.2017.03.262, 2017.
  • D. Gu, Y. Wang, R. Yin, Y. Zhang, and C. Smeltzer. Inverse modelling of NOx emissions over eastern China: uncertainties due to chemical non-linearity. Atmospheric Measurement Techniques, 9, 5193-5201, doi:10.5194/amt-9-5193-2016, 2016.
  • C. Zhao, M. Huang, J. D. Fast, L. K. Berg, Y. Qian, A. Guenther, D. Gu, M. Shrivastava, Y. Liu, S. Walters, G. Pfister, J. Jin, J. E. Shilling, and C. Warneke. Sensitivity of biogenic volatile organic compounds (BVOCs) to land surface parameterizations and vegetation distributions in California. Geoscientific Model Development, 9, 1959-1976, doi:10.5194/gmd-9-1959-2016, 2016.
  • E. G. Alves, K. Jardine, J. Tota, A. Jardine, A. M. Yáñez-Serrano, T. Karl, J. Tavares, B. Nelson, D. Gu, T. Stavrakou, S. Martin, A. Manzi, and A. Guenther. Seasonality of isoprenoid emissions from a primary rainforest in central Amazonia. Atmospheric Chemistry and Physics, 16, 3903-3925, doi:10.5194/acp-16-3903-2016, 2016.
  • D. Gu, Y. Wang, C. Smeltzer and K. F. Boersma. Anthropogenic emissions of NOx over China: Reconciling the difference of inverse modeling results using GOME-2 and OMI measurements. Journal of Geophysical Research: Atmospheres, 119, doi:10.1002/2014JD021644, 2014.
  • Y. Zhang, Y. Wang, B. A. Gray, D. Gu, L. Mauldin, C. Cantrell and A. Bandy. Surface and free tropospheric sources of methanesulfonic acid over the tropical Pacific Ocean. Geophysical Research Letters, 41, doi:10.1002/2014GL060934, 2014.
  • D. Gu, Y. Wang, C. Smeltzer and Z. Liu. Reduction in NOx emission trends over China: Regional and seasonal variations. Environmental Science & Technology, 47(22), 12912-12919, 2013.
  • Z. Liu, Y. Wang, D. Gu, C. Zhao, G. Huey, R. Stickel, J. Liao, M. Shao, T. Zhu, L. Zeng, A. Amoroso, F. Costabile, C.-C. Chang and S.-C. Liu. Summertime photochemistry during CAREBeijing-2007: ROx budgets and O3 formation. Atmospheric Chemistry and Physics, 12(16), 7737–7752, 2012.
  • M. Shao, D. Huang, D. Gu, S. Lu, C. Chang and J. Wang. Estimate of anthropogenic halocarbon emission based on measured ratio relative to CO in the Pearl River Delta region, China. Atmospheric Chemistry and Physics, 11, 5011-5025, 2011.
  • B. Gray, Y. Wang, D. Gu, A. Bandy, L. Mauldin, A. Clarke, B. Alexander and D. D. Davis. Sources, transport, and sinks of SO2 over the equatorial Pacific during the Pacific Atmospheric Sulfur Experiment. Journal of Atmospheric Chemistry, 68, 27-53, 2011.
  • Z. Liu, Y. Wang, D. Gu, C. Zhao, L. Huey, R. Stickel, J. Liao, M. Shao, T. Zhu, L. Zeng, S. C. Liu, C. C. Chang, A. Amoroso and F. Costabile. Evidence of reactive aromatics as a major source of peroxy acetyl nitrate over China. Environmental Science & Technology, 44, 7017-7022, 2010.
  • D. Gu, S. Lu and M. Shao. Source apportionment of formaldehyde in urban atmosphere using primary and secondary tracers. ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS PEKINENSIS, 44(2), 317-322, 2008.
  • Y. Liu, Y. Zhang, Y. Wei, D. Han, D. Gu, L. Zeng and M. Shao. Measurement of emission factors of carbonaceous aerosols from residential coal combustion. ACTA SCIENTIAE CIRCUMSTANTIAE, 29(7), 1409-1416, 2007.


  • NASA Group Achievement Award, The National Aeronautics and Space Administration, USA, 2017.
  • Outstanding Performance Award, Pacific Northwest National Laboratory, USA, 2014


  • Editorial Board: PLOS ONE (2019~); Frontiers in Forests and Global Change (2018~)
  • Member: American Geophysical Union (2008~); American Energy Society (2014~)
  • Peer Reviewer: Nature Communications; Atmospheric Chemistry and Physics; Journal of Geophysical Research-Atmospheres; Geoscientific Model Development; Aerosol and Air Quality Research; Atmospheric Environment; Atmospheric Research; Atmospheric and Oceanic Science Letters; Asia-Pacific Journal of Atmospheric Sciences; Air Pollution Research; Atmosphere; Climate; Journal of Metrological Research; Water.


I will start working as an Assistant Professor at the Division of Environment and Sustainability (ENVR) of the Hong Kong University of Science and Technology (HKUST) from March 2019.

Fully-funded Ph.D./M.S. student and Postdoc positions are available for applying now. Candidates with backgrounds in Atmosphere, Environment, Chemistry, Biology, and other scientific studies are welcome to apply. Details for Ph.D./M.S. student application can be found HERE.

Please do not hesitate to contact me if you have any questions!