DOI: 10.1175/JCLI-D-16-0699.1
Scopus记录号: 2-s2.0-85017132187
论文题名: Evaluation of the ozone fields in NASA's MERRA-2 reanalysis
作者: Wargan K. ; Labow G. ; Frith S. ; Pawson S. ; Livesey N. ; Partyka G.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 8 起始页码: 2961
结束页码: 2988
语种: 英语
Scopus关键词: Meteorological instruments
; NASA
; Quality control
; Satellites
; Statistics
; Troposphere
; Data assimilation
; Microwave limb sounder
; Ozone monitoring instruments
; Reanalysis
; Research and application
; Retrospective analysis
; Spatial and temporal variability
; Standard deviation
; Ozone
英文摘要: The assimilated ozone product from the Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2), produced at NASA's Global Modeling and Assimilation Office (GMAO) spanning the time period from 1980 to the present is described herein, and its quality is assessed. MERRA-2 assimilates partial column ozone retrievals from a series of Solar Backscatter Ultraviolet Radiometer (SBUV) instruments on NASA and NOAA spacecraft between January 1980 and September 2004: starting in October 2004, retrieved ozone profiles from the Microwave Limb Sounder (MLS) and total column ozone from the Ozone Monitoring Instrument on NASA's EOS Aura satellite are assimilated. The MERRA-2 ozone is compared with independent satellite and ozonesonde data, focusing on the representation of the spatial and temporal variability of stratospheric and upper-tropospheric ozone and on implications of the change in the observing system from SBUV to EOS Aura. The comparisons show agreement within 10% (standard deviation of the difference) between MERRA-2 profiles and independent satellite data in most of the stratosphere. The agreement improves after 2004, when EOS Aura data are assimilated. The standard deviation of the differences between the lower-stratospheric and upper-tropospheric MERRA-2 ozone and ozonesondes is 11.2% and 24.5%, respectively, with correlations of 0.8 and above, indicative of a realistic representation of the near-tropopause ozone variability in MERRA-2. The agreement improves significantly in the EOS Aura period; however, MERRA-2 is biased low in the upper troposphere with respect to the ozonesondes. Caution is recommended when using MERRA-2 ozone for decadal changes and trend studies. © 2017 American Meteorological Society.
资助项目: NASA, National Aeronautics and Space Administration
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49716
Appears in Collections: 气候变化事实与影响
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作者单位: Science Systems and Applications Inc., Lanham, United States; Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Recommended Citation:
Wargan K.,Labow G.,Frith S.,et al. Evaluation of the ozone fields in NASA's MERRA-2 reanalysis[J]. Journal of Climate,2017-01-01,30(8)