The MOPITT version 4 CO product: Algorithm enhancements, validation, and long-term stability

被引：95

作者：

Deeter, M. N. ^{[1
]}

Edwards, D. P. ^{[1
]}

Gille, J. C. ^{[1
]}

Emmons, L. K. ^{[1
]}

Francis, G. ^{[1
]}

Ho, S. -P. ^{[1
]}

Mao, D. ^{[1
]}

Masters, D. ^{[1
]}

Worden, H. ^{[1
]}

Drummond, James R. ^{[2
]}

Novelli, Paul C. ^{[3
]}

机构：

[1] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA

[2] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada

[3] NOAA, Earth Syst Res Lab, Boulder, CO 80303 USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | 2010年 / 115卷

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 美国国家航空航天局;

关键词：

TROPOSPHERIC CO; CARBON-MONOXIDE; WATER-VAPOR; INSTRUMENT; VARIABILITY; POLLUTION; TRENDS; OZONE; MODEL;

D O I：

10.1029/2009JD013005

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Vertical profiles of carbon monoxide (CO) concentration and corresponding total column values derived from measurements made by the Measurements of Pollution in the Troposphere (MOPITT) satellite instrument are now being processed operationally with the "version 4" (V4) retrieval algorithm. This algorithm exploits the results of analyses of in situ data, chemical transport modeling, and radiative transfer modeling in the MOPITT postlaunch era. Improvements in the V4 product are evident in both clean and polluted conditions. The new products are validated using CO in situ measurements acquired from aircraft from 2000 to 2007. As determined by both retrieval simulations and observations, retrieval bias drift is typically about 1 ppbv/yr for levels in the middle troposphere and about 2 ppbv/yr in the upper troposphere. Retrieval simulations indicate that observed bias drift may be the result of gradual on-orbit changes in the instrument's modulation cell parameters.

引用

页数：13

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