DOI: 10.1175/JCLI-D-16-0613.1
Scopus记录号: 2-s2.0-85027281367
论文题名: The MERRA-2 aerosol reanalysis, 1980 onward. Part II: Evaluation and case studies
作者: Buchard V. ; Randles C.A. ; da Silva A.M. ; Darmenov A. ; Colarco P.R. ; Govindaraju R. ; Ferrare R. ; Hair J. ; Beyersdorf A.J. ; Ziemba L.D. ; Yu H.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 17 起始页码: 6851
结束页码: 6872
语种: 英语
Scopus关键词: Advanced very high resolution radiometers (AVHRR)
; Aerosols
; Atmospheric aerosols
; Fighter aircraft
; Image reconstruction
; NASA
; Optical properties
; Particles (particulate matter)
; Pollution
; Radiometers
; Satellite imagery
; Satellites
; Spectrometers
; Data assimilation
; Goddard earth observing systems
; Model evaluation/performance
; Moderate resolution imaging spectroradiometer
; Multiangle imaging spectroradiometer
; Ozone monitoring instruments
; Reanalysis
; Satellite observations
; Air pollution
英文摘要: The Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2), is NASA's latest reanalysis for the satellite era (1980 onward) using the Goddard Earth Observing System, version 5 (GEOS-5), Earth system model. MERRA-2 provides several improvements over its predecessor (MERRA-1), including aerosol assimilation for the entire period. MERRA-2 assimilates bias-corrected aerosol optical depth (AOD) from the Moderate Resolution Imaging Spectroradiometer and the Advanced Very High Resolution Radiometer instruments. Additionally, MERRA-2 assimilates (non bias corrected) AOD from the Multiangle Imaging SpectroRadiometer over bright surfaces and AOD from Aerosol Robotic Network sunphotometer stations. This paper, the second of a pair, summarizes the efforts to assess the quality of the MERRA-2 aerosol products. First, MERRA-2 aerosols are evaluated using independent observations. It is shown that the MERRA-2 absorption aerosol optical depth (AAOD) and ultraviolet aerosol index (AI) compare well with Ozone Monitoring Instrument observations. Next, aerosol vertical structure and surface fine particulate matter (PM2.5) are evaluated using available satellite, aircraft, and ground-based observations. While MERRA-2 generally compares well to these observations, the assimilation cannot correct for all deficiencies in the model (e.g., missing emissions). Such deficiencies can explain many of the biases with observations. Finally, a focus is placed on several major aerosol events to illustrate successes and weaknesses of the AOD assimilation: the Mount Pinatubo eruption, a Saharan dust transport episode, the California Rim Fire, and an extreme pollution event over China. The article concludes with a summary that points to best practices for using the MERRA-2 aerosol reanalysis in future studies. © 2017 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49796
Appears in Collections: 气候变化事实与影响
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作者单位: Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Goddard Earth Sciences Technology and Research, Universities Space Research Association, Columbia, MD, United States; Atmospheric Chemistry and Dynamics Lab, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Science Systems and Applications, Inc., Lanham, MD, United States; NASA Langley Research Center, Hampton, VA, United States; Climate and Radiation Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, College Park, MD, United States; ExxonMobil Research and Engineering Company, Annandale, NJ, United States
Recommended Citation:
Buchard V.,Randles C.A.,da Silva A.M.,et al. The MERRA-2 aerosol reanalysis, 1980 onward. Part II: Evaluation and case studies[J]. Journal of Climate,2017-01-01,30(17)