DOI: 10.1002/2017JD026518
Scopus记录号: 2-s2.0-85041122855
论文题名: OMI Satellite and Ground-Based Pandora Observations and Their Application to Surface NO2 Estimations at Terrestrial and Marine Sites
作者: Kollonige D.E. ; Thompson A.M. ; Josipovic M. ; Tzortziou M. ; Beukes J.P. ; Burger R. ; Martins D.K. ; van Zyl P.G. ; Vakkari V. ; Laakso L.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 2 起始页码: 1441
结束页码: 1459
语种: 英语
英文关键词: air quality
; nitrogen dioxide
; OMI
; satellite validation
; total column observations
Scopus关键词: air quality
; AIRS
; boundary layer
; in situ measurement
; marine atmosphere
; monitoring
; nitrogen dioxide
; ozone
; satellite data
; spectrometer
; terrestrial environment
; urban pollution
; Atlantic Coast [North America]
; Atlantic Coast [United States]
; Gauteng
; Highveld
; Johannesburg
; Pretoria
; South Africa
; United States
英文摘要: The Pandora spectrometer that uses direct-Sun measurements to derive total column amounts of gases provides an approach for (1) validation of satellite instruments and (2) monitoring of total column (TC) ozone (O3) and nitrogen dioxide (NO2). We use for the first time Pandora and Ozone Monitoring Instrument (OMI) observations to estimate surface NO2 over marine and terrestrial sites downwind of urban pollution and compared with in situ measurements during campaigns in contrasting regions: (1) the South African Highveld (at Welgegund, 26°34′10″S, 26°56′21″E, 1,480 m asl, ~120 km southwest of the Johannesburg-Pretoria megacity) and (2) shipboard U.S. mid-Atlantic coast during the 2014 Deposition of Atmospheric Nitrogen to Coastal Ecosystems (DANCE) cruise. In both cases, there were no local NOx sources but intermittent regional pollution influences. For TC NO2, OMI and Pandora difference is ~20%, with Pandora higher most times. Surface NO2 values estimated from OMI and Pandora columns are compared to in situ NO2 for both locations. For Welgegund, the planetary boundary layer (PBL) height, used in converting column to surface NO2 value, has been estimated by three methods: co-located Atmospheric Infrared Sounder (AIRS) observations; a model simulation; and radiosonde data from Irene, 150 km northeast of the site. AIRS PBL heights agree within 10% of radiosonde-derived values. Absolute differences between Pandora- and OMI-estimated surface NO2 and the in situ data are better at the terrestrial site (~0.5 ppbv and ~1 ppbv or greater, respectively) than under clean marine air conditions, with differences usually >3 ppbv. Cloud cover and PBL variability influence these estimations. ©2017. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114668
Appears in Collections: 气候减缓与适应
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作者单位: Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park, MD, United States; NASA/Goddard, Greenbelt, MD, United States; Department of Meteorology, The Pennsylvania State University, University Park, PA, United States; Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa; Department of Earth and Atmospheric Science, City University of New York, New York, NY, United States; FLIR Systems, Inc, West Lafayette, IN, United States; Finnish Meteorological Institute, Helsinki, Finland
Recommended Citation:
Kollonige D.E.,Thompson A.M.,Josipovic M.,et al. OMI Satellite and Ground-Based Pandora Observations and Their Application to Surface NO2 Estimations at Terrestrial and Marine Sites[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(2)