DOI: 10.1002/jgrd.50272
论文题名: Validation of MOPITT Version 5 thermal-infrared, near-infrared, and multispectral carbon monoxide profile retrievals for 2000-2011
作者: Deeter M.N. ; Martínez-Alonso S. ; Edwards D.P. ; Emmons L.K. ; Gille J.C. ; Worden H.M. ; Pittman J.V. ; Daube B.C. ; Wofsy S.C.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 12 起始页码: 6710
结束页码: 6725
语种: 英语
英文关键词: carbon monoxide
; MOPITT
; satellite remote sensing
; validation
Scopus关键词: Carbon monoxide
; Poles
; Troposphere
; Enhanced sensitivity
; Exact representations
; In-situ measurement
; Measurements of pollution in the tropospheres
; MOPITT
; Retrieval algorithms
; Satellite remote sensing
; validation
; Infrared devices
; algorithm
; carbon monoxide
; environmental degradation
; infrared radiation
; instrumentation
; MOPITT
; NOAA satellite
; remote sensing
; Southern Hemisphere
; spectral analysis
; troposphere
英文摘要: Validation results are reported for the MOPITT (Measurements of Pollution in the Troposphere) "Version 5" (V5) product for tropospheric carbon monoxide (CO) and are compared to results for the "Version 4" product. The V5 retrieval algorithm introduces (1) a method for reducing retrieval bias drift associated with long-term instrumental degradation, (2) a more exact representation of the effects of random errors in the radiances and, for the first time, (3) the use of MOPITT's near-infrared (NIR) radiances to complement the thermal-infrared (TIR) radiances. Exploiting TIR and NIR radiances together facilitates retrievals of CO in the lowermost troposphere. V5 retrieval products based (1) solely on TIR measurements, (2) solely on NIR measurements and (3) on both TIR and NIR measurements are separately validated and analyzed. Actual retrieved CO profiles and total columns are compared with equivalent retrievals based on in situ measurements from (1) routine NOAA aircraft sampling mainly over North America and (2) the "HIAPER Pole to Pole Observations" (HIPPO) field campaign. Particular attention is focused on the long-term stability and geographical uniformity of the retrieval errors. Results for the retrieved total column clearly indicate reduced temporal bias drift in the V5 products compared to the V4 product, and do not exhibit a positive bias in the Southern Hemisphere, which is evident in the V4 product. Key Points New MOPITT products exhibit enhanced sensitivity to CO in the lower troposphere. V5 products are rigorously validated using a large database of in-situ profiles. V5 validation results indicate reduced bias drift compared to V4 products. © 2013. 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/63653
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO 80307, United States; Department of Earth and Planetary Science, Harvard University, Cambridge, MA, United States
Recommended Citation:
Deeter M.N.,Martínez-Alonso S.,Edwards D.P.,et al. Validation of MOPITT Version 5 thermal-infrared, near-infrared, and multispectral carbon monoxide profile retrievals for 2000-2011[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(12)