Publications by Year: 2019

Lu, X., L. Zhang, T. Wu, M. S. Long, J. Wang, D.J. Jacob, F. Zhang, et al.Development of the global atmospheric general circulation-chemistry model BCC-GEOS-Chem v1.0: model description and evaluation.” Geoscientific Model Development Discussions 2019 (2019): 1–39. Publisher's Version
Chance, K., X. Liu, C. Chan Miller, G. González Abad, G. Huang, C. Nowlan, A. Souri, et al.TEMPO Green Paper: Chemistry, physics, and meteorology experiments with the Tropospheric Emissions: monitoring of pollution instrument.” In Sensors, Systems, and Next-Generation Satellites XXIII, edited by Steven P. Neeck, Philippe Martimort, and Toshiyoshi Kimura, 11151:56 – 67. International Society for Optics and Photonics, 2019. Publisher's Version
Shen, Lu, Daniel J. Jacob, Lei Zhu, Qiang Zhang, Bo Zheng, Melissa P. Sulprizio, Ke Li, et al.The 2005–2016 Trends of Formaldehyde Columns Over China Observed by Satellites: Increasing Anthropogenic Emissions of Volatile Organic Compounds and Decreasing Agricultural Fire Emissions.” Geophysical Research Letters 46, no. 8 (2019): 4468-4475. Publisher's VersionAbstract
Abstract We use 2005–2016 observations of formaldehyde (HCHO) columns over China from the OMI, GOME-2, and SCIAMACHY satellite instruments to evaluate long-term trends in emission inventories of volatile organic compounds (VOCs) that affect air quality. The observations show large increases over 2005–2016 in the North China Plain (+1.1 ± 0.5% a−1 relative to 2005) and the Yangtze River Delta region (+1.5 ± 0.4% a−1 relative to 2005), consistent with the trend of anthropogenic VOC emissions in the Multi-resolution Emission Inventory for China (MEIC). Unlike other pollutants, VOC emissions have not been decreasing in recent years. An exception is the Huai River Basin in rural eastern China where the satellite data show rapidly decreasing VOC emissions since the early 2010s that appear to reflect bans on agricultural fires.
Zhu, L., D.J. Jacob, S. D. Eastham, M.P. Sulprizio, X. Wang, T. Sherwen, M. J. Evans, et al.Effect of sea salt aerosol on tropospheric bromine chemistry.” Atmospheric Chemistry and Physics 19, no. 9 (2019): 6497–6507. Publisher's Version
Song, S., M. Gao, W. Xu, Y. Sun, D. R. Worsnop, J. T. Jayne, Y. Zhang, et al.Possible heterogeneous chemistry of hydroxymethanesulfonate (HMS) in northern China winter haze.” Atmospheric Chemistry and Physics 19, no. 2 (2019): 1357–1371. Publisher's Version
Wang, X., D.J. Jacob, S. D. Eastham, M.P. Sulprizio, L. Zhu, Q. Chen, B. Alexander, et al.The role of chlorine in global tropospheric chemistry.” Atmospheric Chemistry and Physics 19, no. 6 (2019): 3981–4003. Publisher's Version
Zhang, Yuzhong, Ritesh Gautam, Daniel Zavala-Araiza, Daniel J. Jacob, Ruixiong Zhang, Lei Zhu, Jian-Xiong Sheng, and Tia Scarpelli. “Satellite-Observed Changes in Mexico's Offshore Gas Flaring Activity Linked to Oil/Gas Regulations.” Geophysical Research Letters 46, no. 3 (2019): 1879-1888. Publisher's VersionAbstract
Abstract Gas flaring is a commonly used practice in the oil and gas sector that leads to key air pollutant and greenhouse gas emissions. Here we use multipollutant (NO2, SO2) satellite observations from 2005 to 2017 to quantify gas flaring activity in Mexico's offshore production cluster, which produces  50–70% of the country's oil and is among the world's largest oil fields. We estimate annual flared gas volume ranging from 5.5 to 20 × 109 m3 over the Mexican offshore corresponding to >40% associated gas production, which is significantly larger than for instance offshore United States where reportedly <3% of associated gas is flared. The 13-year record of satellite-derived gas flaring indicates a drastic increase until 2008 and a decline afterward. While the increased flaring is associated with efforts to enhance oil production, the post-2008 decline is linked to an expanding capacity of associated gas utilization, providing a continuing opportunity to reduce flaring for environmental and economic benefits.