课题组研究聚焦于大气遥感的两个基础方向：大气辐射传输和大气定量遥感反演。
课题组项目网站：
http://fengyun.pku.edu.cn/
五篇代表性著作：
[1] Zeng, Z.-C.*, T. Pongetti, S. Newman, T. Oda, K. Gurney, P. I. Palmer, Y. L. Yung, and S. P. Sander* (2023), Decadal decrease in Los Angeles methane emissions is much smaller than bottom-up estimates, Nature Communications, 14, 5353, https://doi.org/10.1038/s41467-023-40964-w.
论文简介：利用温水气体遥感观测数据揭示了洛杉矶超大城市甲烷排放的多年趋势变化规律。
[Highlight by Caltech News and Universities Space Research Association News]
a) https://www.caltech.edu/about/news/methane-emissions-in-la-are-decreasing-more-slowly-than-previously-estimated
b) https://newsroom.usra.edu/new-study-uncovers-slower-methane-emission-reduction-in-los-angeles-challenging-previous-estimates/
[2] Zeng, Z.-C.*, V. Natraj, F. Xu, S.Chen, F.-Y. Gong, T. Pongetti, K. Sung, G. Toon, S. P. Sander, and Y. L. Yung, (2021). GFIT3: A full physics retrieval algorithm for remote sensing of greenhouse gases in the presence of aerosols. Atmospheric Measurement Techniques. https://doi.org/10.5194/amt-14-6483-2021. [PDF Download]
A full-physics algorithm was developed to retrieve greenhouse gases in the presence of aerosols from spectra of reflected solar radiation.
[3] Zeng, Z.-C.*, Y. Wang, T. Pongetti, F.-Y. Gong, S. Newman, Y. Li, V. Natraj, et al., (2020). Tracking the Atmospheric Pulse of a North American Megacity from a Mountain-top Remote Sensing Observatory, Remote Sensing of Environment, DOI: 10.1016/j.rse.2020.112000. [PDF Download]
Highlighted by JPL Science Division
We showed the interesting diurnal, weekly, and seasonal cycles of XCO excess in southern California.
[4] Zeng, Z.-C.*, Chen, S., Natraj, V., Le, T., Xu, F., Merrelli, A., Crisp, D., Sander, S.P. and Yung, Y.L., (2020). Constraining the vertical distribution of coastal dust aerosol using OCO-2 O2 A-band measurements. Remote Sensing of Environment, 236, 111494. DOI:10.1016/j.rse.2019.111494. [PDF Download]
Highlighted by JPL Science Division
A spectral-sorting approach to locate the aerosol layer is developed for OCO-2
[5] Zeng, Z.-C.*, Natraj, V., Xu, F., Pongetti, T.J., Shia, R.L., Kort, E.A., Toon, G.C., Sander, S.P. and Yung, Y.L., (2018). Constraining aerosol vertical profile in the boundary layer using hyperspectral measurements of oxygen absorption. Geophysical Research Letters, 45(19), 10-772. DOI:10.1029/2018GL079286. [PDF Download]
Highlighted by JPL Science Division
A novel method to detect the height of air pollutant layer in cities is proposed based on high resolution observation of oxygen absorption
科研项目：
以主要负责人(Principal Investigator)主持科研项目:
[5] 国家自然科学基金，基于地球静止轨道风云卫星红外高光谱观测的大气成分遥感反演，面上项目，2023-2026, 项目状态:在研
[4] 国家自然科学基金，全球温室气体卫星遥感:理论、方法与应用，国家高层次青年人才科学基金项目(海外)，2022-, 项目状态:在研
[3] 北京大学学科建设项目，基于红外高光谱的大气成分定量遥感方法研究，2022-2014, 项目状态:在研
[2] 日本太空发展署(JAXA)/日本环境保护局(NIES)/日本国立环境研究所(MOE), GOSAT 卫星国际合作项目, 批准号2RA-01, 项目名称: Profiling aerosols using oxygen A- band measurements from GOSAT/GOSAT-2, 研究起止年月:2020年7月至2025年7月, 科学研究数据和会议旅费资助, 项目状态:在研
[1] 美国国家航空航天局喷气推进实验室(NASA Jet Propulsion Laboratory), 基础研究项目(Basic Research), 批准号:1658775, 项目名称: Boundary Layer Measurements of Atmospheric Isotopologues of Water Vapor, Carb on Dioxide and Methane, 研究起止年月:2021年3月至2021年12月, 资助总金额:82,940 美元, 项目状态:已结题
参与科研项目
[4] 国家自然科学基金重大项目, 子课题, 物理数据双驱动的遥感卫星数据反演建模，2023-2027，子课题负责人
[3] 科技部重点研发计划项目, 子课题, “数据-机理”融合的统计建模基础 (面向卫星遥感的应用验证) ，2023-3026，子课题负责人
[2] 美国加州大气资源局(California Air Resources Board), 研究发展项目, 批准号: 17RD030, 项目名称: Quantifying Trends in Methane, Nitrous Oxide, and Carbon Monoxide Emissions i n the Los Angeles Basin Using Remote Sensing Spectroscopy at CLARS, 研究起止 年月:2019年3月至2021年2月, 资助总金额: 30万美元, 项目状态:已结题
[1] 香港中文大学, 直拨研究经费(Direct Grant for Research), 批准号: 4052123, 项目名称: Improving Mangrove Species Discrimination with Sophisticated Texture Informat ion using Very High Resolution Optical Satellite Imagery, 研究起止年月:2016年 5月至2017年4月, 资助总金额: 港币79,500, 项目状态:已结题
完整论文列表可见：https://www.researchgate.net/profile/Zhao-Cheng-Zeng
主要学术论文列表（下划线为所指导的本科生/研究生；星号代表通讯作者）：
2024年：
He, Z., Gao, L., Liang, M., and Zeng, Z.-C.*: A survey of methane point source emissions from coal mines in Shanxi province of China using AHSI on board Gaofen-5B, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2023-3047, 2023.
Chenxi Feng, Sihe Chen, Zhao-Cheng Zeng, Yangcheng Luo, Vijay Natraj and Yuk L. Yung, Aerosol-Calibrated Matched Filter method for retrievals of methane point source emissions over the Los Angeles Basin, submitted to Earth and Space Sciences.
2023年：
Zeng, Z.-C.*, T. Pongetti, S. Newman, T. Oda, K. Gurney, P. I. Palmer, Y. L. Yung, and S. P. Sander* (2023), Decadal decrease in Los Angeles methane emissions is much smaller than bottom-up estimates, Nature Communications, 14, 5353, https://doi.org/10.1038/s41467-023-40964-w.
论文简介：利用温水气体遥感观测数据揭示了洛杉矶超大城市甲烷排放的多年趋势变化规律。
[Highlight by Caltech News and Universities Space Research Association News]
[1] https://www.caltech.edu/about/news/methane-emissions-in-la-are-decreasing-more-slowly-than-previously-estimated
[2] https://newsroom.usra.edu/new-study-uncovers-slower-methane-emission-reduction-in-los-angeles-challenging-previous-estimates/
Zeng, Z.-C.*, Lee, L., Qi, C., L. Clarisse, and M. Van Damme: Optimal estimation retrieval of tropospheric ammonia from the Geostationary Interferometric Infrared Sounder onboard FengYun-4B, Atmospheric Measurement Techniques, 16, 3693–3713, https://doi.org/10.5194/amt-16-3693-2023, 2023. 论文简介：利用我国新一代气象卫星风云四号(FY-4)所搭载红外大气垂直探测仪(GIIRS)反演亚洲区域的氨气污染物排放。
Zeng, Z.-C.*, Lee, L., and Qi, C.: Diurnal carbon monoxide observed from a geostationary infrared hyperspectral sounder: first result from GIIRS on board FengYun-4B, Atmospheric Measurement Techniques, 16, 3059–3083, https://doi.org/10.5194/amt-16-3059-2023, 2023. [AMT Highlight Paper] 论文简介：我国的新一代气象卫星风云四号(FY-4)所搭载红外大气垂直探测仪(GIIRS)是国际上第一个地球同步轨道的高光谱红外探测器。本数据集是基于自主开发的FY-GeoAIR 反演算法，应用于GIIRS的高光谱红外光谱所生成的首套小时尺度的东亚区域一氧化碳(CO)垂直分布数据。
2022年：
Zeng, Z.-C.*,O. Addington, T. Pongetti, R. Herman, K. Sung, S. Newman, A. Schneider, T. Borsdorff, Y. L. Yung, and S. P. Sander* (2022), Measurements of atmospheric HDO/H2O in southern California from CLARS-FTS observations, Journal of Quantitative Spectroscopy and Radiative Transfer, https://doi.org/10.1016/j.jqsrt.2022.108254. 论文简介：利用超高光谱遥感观测反演了南加州超大城市的多年水汽同位素。这是首个城市尺度的长时间序列的水汽同位素数据。数据共享网址：[CaltechDATA] https://doi.org/10.22002/D1.1920
Chen, S.*, V Natraj, Zeng, Z.-C., and Yung, Y. L. (2021). Machine learning-based aerosol characterization using oco-2 o2 a-band observations, Journal of Quantitative Spectroscopy and Radiative Transfer, https://doi.org/10.1016/j.jqsrt.2021.108049
Wang, H., F.-Y. Gong, S. Newman, and Z.-C. Zeng* (2022), Consistent weekly cycles of atmospheric NO2, CO, and CO2 in a North American megacity from ground-based, mountaintop, and satellite measurements, Atmospheric Environment, https://doi.org/10.1016/j.atmosenv.2021.118809. 论文简介：利用卫星数据分析了超大城市洛杉矶的污染气体和温室气体的周变化，并首次直接利用OCO-2卫星数据量化了城市的二氧化碳的周变化。
Zeng, Z.-C.*, T. Pongetti, T. Oda, K. Gurney, Y. L. Yung, and S. P. Sander* (2022), Decadal trend of methane emissions in the Los Angeles Basin from 2011 to 2020, to be submitted to GRL.
V. Natraj*, R. Spurr, A. Gao, T. Le, Z.-C. Zeng, S. Fan, and Y. L. Yung (2022), The 2 Stream-Exact Single Scattering (2S-ESS) Radiative Transfer Model, Journal of Quantitative Spectroscopy and Radiative Transfer, vol 295, https://doi.org/10.1016/j.jqsrt.2022.108416
2021年：
Zeng, Z.-C.*, B. Byrne*, F.-Y. Gong , Z. He , L. Lei (2021), Correlation between paddy rice growth and satellite-observed methane column abundance does not imply causation, Nature Communication, https://doi.org/10.1038/s41467-021-21434-7.
Zeng, Z.-C. and S. P. Sander (2021), Quantifying Trends in Methane, Nitrous Oxide, and Carbon Monoxide Emissions in the Los Angeles Basin Using Remote Sensing Spectroscopy at CLARS: Final Report, California Air Resources Board, Project summary: https://www.arb.ca.gov/research/single-project.php?row_id=68807; Final report available at https://ww2.arb.ca.gov/sites/default/files/2021-07/17RD030.pdf
Zeng, Z.-C.*, V. Natraj, F. Xu, S.Chen, F.-Y. Gong, T. Pongetti, K. Sung, G. Toon, S. P. Sander, and Y. L. Yung (2021), GFIT3: A full physics retrieval algorithm for remote sensing of greenhouse gases in the presence of aerosols, Atmospheric Measurement Techniques, https://doi.org/10.5194/amt-14-6483-2021, 2021.
O. Addington*, Z.-C. Zeng, T. Pongetti, R.-L. Shia, Y. L. Yung, and S. P. Sander* (2021), Estimating Nitrous Oxide (N2O) Emissions for the Los Angeles Megacity using CLARS-FTS observations, Remote Sensing of Environment, https://doi.org/10.1016/j.rse.2021.112351.
Campbell, Elliott and Fisher, Joshua and Kuai, Le and Yung, Yuk L. and Baker, Ian and Berry, Joe and Bowman, Kevin and Commane, Róisín and Frankenberg, Christian and Liu, Junjie and Magney, Troy and Marshall, Julia and Miller, Charles E. and Noone, David and Parazoo, Nicholas and Ryu, Youngryel and Saleska, Scott and Schimel, David and Seibt, Ulrike and Stinecipher, James and Sun, Wu and Sun, Ying and Toon, Geoffrey and Wang, Yutang and Wennberg, Paul and Whelan, Mary E. and Worden, John and Zeng, Zhao-Cheng (2021) Detecting Climate-Carbon Feedbacks: Next-Generation Approach for Space-Based Integration of OCS, CO₂, and SIF. , Pasadena, CA. https://resolver.caltech.edu/CaltechAUTHORS:20210813-163903875
Natraj, V.*, M. Luo, J.-F. Blavier, V. Payne, J. Neu, Z.-C. Zeng, S. Kulawik, L. Wu, J. Roman, D. Posselt, S. Sander, Y.-H. Wu, L. Dorsky (2021), Simulated Multispectral Temperature and Atmospheric Composition Retrievals for the GEO-IR Sounder, Atmospheric Measurement Techniques, https://doi.org/10.5194/amt-15-1251-2022.
Jongaramrungruang, S.*, G. Matheou, A. K. Thorpe, Z.-C. Zeng, and C. Frankenberg (2021), Remote sensing of methane plumes: instrument tradeoff analysis for detecting and quantifying local sources at global scale, Atmospheric Measurement Techniques, https://doi.org/10.5194/amt-2021-205.
Joshua L. Laughner*, Jessica L. Neu, David Schmiel, Paul O. Wennberg, Kelley Barsanti, Kevin Bowman, Abhishek Chatterjee, Bart Croes, Helen Fitzmauric, Daven Henze, Jinsol Kim, Eric Kort, Zhu Liu, Kazuyuki Miyazaki, Alexander J. Turner, Susan Anenberg, Jeremy Avise, Hansen Cao, David Crisp, Joost de Gouw, Annmarie Eldering, John Fyfe, Dan Goldberg, Sina Hasheminassab, Francesca Hopkin, Cesunica E. Ivey, Nicole S. Lovenduski, Randall V. Martin, Galen A. McKinley, Leslie Ott, Benjamin Poulter, Muye Ru, Stanley P. Sander, Neil Swart, Yuk L. Yung, Zhao-Cheng Zeng, and the rest of the Keck Institute for Space Studies “COVID-19: Identifying Unique Opportunities for Earth System Science” study team (2021), Societal shifts due to COVID-19 reveal large-scale complexities and feedbacks between atmospheric chemistry and climate change, Proceedings of the National Academy of Sciences of the United States of America (PNAS), 2021,118(46),e2109481118, https://doi.org/10.1073/pnas.2109481118.
2020年：
Zeng, Z.-C.*, Y. Wang, T. Pongetti, F.-Y. Gong, S. Newman, Y. Li, V. Natraj, R.-L. Shia, Yuk L. Yung, and Stanley P. Sander (2020), Tracking the Atmospheric Pulse of a North American Megacity from a Mountaintop Remote Sensing Observatory, Remote Sensing of Environment, https://doi.org/10.1016/j.rse.2020.112000.
Zeng, Z.-C*., S. Chen#, V. Natraj, T. Le, F. Xu, A. Merrelli, D. Crisp, S. P. Sander, and Y. L. Yung (2020), Constraining the vertical distribution of coastal dust aerosol using OCO-2 O2 A-band measurements, Remote Sensing of Environment, http://doi.org/10.1016/j.rse.2019.111494.
Zeng, Z.-C.*, F. Xu, V. Natraj, T. J. Pongetti, R.-L. Shia, Q. Zhang, S. P. Sander, and Y. L. Yung (2020), Remote sensing of angular-dependent scattering of aerosols in a North American megacity, Remote Sensing of Environment, https://doi.org/10.1016/j.rse.2020.111760.
Rooney, B., Wang, Y., Jiang, J. H., Zhao, B., Zeng, Z.-C., and Seinfeld, J. H. (2020), Air Quality Impact of the Northern California Camp Fire of November 2018, Atmospheric Chemistry and Physics, https://doi.org/10.5194/acp-20-14597-2020.
Y. Huang, V. Natraj, Z.-C. Zeng, P. Kopparla, and Y. L. Yung (2020), Quantifying the impact of aerosol scattering on the retrieval of methane from airborne remote sensing measurements, Atmospheric Measurement Techniques, https://doi.org/10.5194/amt-13-6755-2020.
2019年及之前：
He, L., Z.-C. Zeng, T. J. Pongetti, C. Wong, J. Liang, K. Gurney, S. Newman, V. Yadav, K. Verhulst, C. Miller, R. Duren, C. Frankenberg, P. O. Wennberg, R.-L. Shia, Y. L. Yung and S. P. Sander* (2019), Atmospheric methane emissions correlate with natural gas consumption from residential and commercial sectors in Los Angeles, Geophysical Research Letters, https://doi.org/10.1029/2019GL083400.
Toon, G.*, C. C. Liebe, B. Nemati, I. Harris, A. Kleinböhl, M. Allen, V. Hipkin, J. Drummond, M.-A. Soucy, Y. L. Yung, Z.-C. Zeng, D. Wunch, P. Wennberg (2018), Solar Occultation FTIR spectrometry at Mars: A Sensitivity Study, AGU: Earth and Space Science, https://doi.org/10.1029/2018EA000469
Zeng, Z.-C.*, V. Natraj, F. Xu, T. J. Pongetti, R.-L. Shia, E. A. Kort, G. C. Toon, S. P. Sander, and Y. L. Yung (2018), Constraining Aerosol Vertical Profile in the Boundary Layer Using Hyperspectral Measurements of Oxygen Absorption. Geophysical Research Letters, https://doi.org/10.1029/2018GL079286.
Bie, N., Lei, L.*, Z.-C. Zeng, Cai, B., Yang, S., He, Z., Wu, C., and Nassar, R. (2018). Regional uncertainty of GOSAT XCO2 retrievals in China: Quantification and attribution, Atmospheric Measurement Techniques, https://doi.org/10.5194/amt-2017-237.
Zeng, Z.-C*., Q. Zhang, V. Natraj, J. Margolis, R.-L. Shia, S. Newman, D. Fu, T. J. Pongetti, K. W. Wong, S. P. Sander, P. O. Wennberg, and Y. L. Yung (2017), Aerosol Scattering Effects on Water Vapor Retrievals over the Los Angeles Basin, Atmospheric Chemistry and Physics, https://doi.org/10.5194/acp-2016-490.
Zeng, Z.-C.*, L. Lei, K. Strong, D. B. A. Jones, L. Guo, M. Liu, F. Deng, N. M. Deutscher, M. K. Dubey, D. W. T. Griffith, F. Hase, B. Henderson, R. Kivi, R. Lindenmaier, I. Morino, J. Notholt, H. Ohyama, C. Petri, R. Sussmann, V. Velazco, P. O. Wennberg, and H. Lin (2017), Global land mapping of satellite-observed CO2 total columns using spatio-temporal geostatistics, International Journal of Digital Earth, 10(4), 426-456, https://doi.org/10.1080/17538947.2016.1156777.
Byrne, B.*, D. Jones, K. Strong, Z.-C. Zeng, F. Deng, and J. Liu (2017), Sensitivity of CO2 Surface Flux Constraints to Observational Coverage, Journal of Geophysical Research-Atmosphere, https://doi.org/ 10.1002/2016JD026164.
Liu, M., L. Lei, D. Liu, and Z.-C. Zeng* (2016), Geo-Statistical Analysis of CH4 Columns over Monsoon Asia Using Five Years of GOSAT Observations, Remote Sensing, 8(5), 361, https://doi.org/10.3390/rs8050361.
Zeng, Z.-C., L. Lei*, S. Hou, F. Ru, X. Guan, and B. Zhang (2014), A Regional Gap-Filling Method Based on Spatio-temporal Variogram Model of CO2 Columns, IEEE Transactions on Geoscience and Remote Sensing, Vol. 52, No. 5, https://doi.org/10.1109/TGRS.2013.2273807.
Zeng, Z.-C., L. Lei*, L. Guo, L. Zhang, and B. Zhang (2013), Incorporating Temporal Variability to Improve Geostatistical Analysis of Satellite-Observed CO2 in China, Chinese Science Bulletin, Vol. 58, No. 16, https://doi.org/10.1007/s11434-012-5652-7.
学术及社会任职
[1] Member of UCLA JIFRESSE Summer Intern Program (JSIP) Committee, 2020-2021.
[2] AGU 2020 Session Convener: Advances in observation to constrain aerosol radiative forcing with Prof. Jing Li and Prof. Yuk L. Yung
URL: https://agu.confex.com/agu/fm20/webprogrampreliminary/Session103033.html
[3] Review Editor & Guest Associate Editor (Editorial Board) for Frontier in Remote Sensing
URL: https://www.frontiersin.org/
[4] Guest Editor for Remote Sensing special issue: Remote Sensing of Air Pollutants and Carbon Emissions in Megacities (April 2020 – May 2021)
URL: https://www.mdpi.com/journal/remotesensing/special_issues/Pollutants_Megacities
邀请学术报告：
[9] AGU Atmospheric Science Early Career Webinar, Tracking CO, NH3, and VOCs over Asia from the world's first geostationary hyperspectral infrared sounder, 2024
[8] Environment and Climate Change Canada, AQRD Seminar, Observing Tropospheric CO and NH3 from the Geostationary Interferometric Infrared Sounder (GIIRS) onboard FengYun satellite, Online, June 15, 2023. Host: Drs. Debora Griffin and Xiaoyi Zhao
[7] 清华大学地球系统科学系，地球同步轨道风云四号卫星的大气成分遥感监测, 2022年 [https://www.dess.tsinghua.edu.cn/info/1176/5734.htm]
[6] 北京大学物理学院大气与海洋科学系, 地球同步轨道的大气成分遥感监测： 我国风云四号卫星的应用潜力初探, 2022年[https://www.atmos.pku.edu.cn/kxzb/xzbg/dqyhykxlt/144093.htm]
[5] 香港中文大学, Remote sensing of urban carbon emissions from mountain-top and geostationary platforms, 2022年 [https://mp.weixin.qq.com/s/_MxS_gqxl7sZPh8x9kFwrA]
[4] Measurements of atmospheric HDO/H2O in southern California from CLARS-FTS. NASA-JPL Tropospheric Composition Group Meeting. March 08, 2021.
[3] Observation constrained methane emissions in Los Angeles in the 2010s. Caltech GPS Lunch Seminar. March 24, 2020. http://web.gps.caltech.edu/seminars/yly_seminar/
[2] Reduction and recovery of carbon monoxide enhancement in Los Angeles during COVID-19, Caltech 2020 KISS Virtual Workshop “COVID-19: Identifying Unique Opportunities for Earth System Science”. April-December, 2020.
[1] Next-Generation Approach for Detecting Climate-Carbon Feedbacks: Space-Based Integration of Carbonyl Sulfide (OCS), CO2, and Solar Induced Fluorescence (SIF), September 18-22, 2017, California Institute of Technology, http://kiss.caltech.edu/workshops/OCS/OCS.html#List
[5] Aerosol scattering properties over the LA basin inferred from CLARS-FTS, Caltech GPS Lunch Seminar, 30 May 2017, http://web.gps.caltech.edu/seminars/yly_seminar/past/2017.htm