Measurements of Pollution in the Troposphere (MOPITT) validation exercises during summer 2004 field campaigns over North America

被引:73
|
作者
Emmons, L. K. [1 ]
Pfister, G. G.
Edwards, D. P.
Gille, J. C.
Sachse, G.
Blake, D.
Wofsy, S.
Gerbig, C.
Matross, D.
Nedelec, P.
机构
[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA
[2] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA
[3] Max Planck Inst Biogeochem, D-07745 Jena, Germany
[4] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA
[5] CNRS, Lab Aerol, F-31400 Toulouse, France
[6] NASA, Langley Res Ctr, Chem & Dynam Branch, Hampton, VA 23681 USA
关键词
D O I
10.1029/2006JD007833
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
Measurements of carbon monoxide (CO) made as part of three aircraft experiments during the summer of 2004 over North America have been used for the continued validation of the CO retrievals from the Measurements of Pollution in the Troposphere (MOPITT) instrument on board the Terra satellite. Vertical profile measured during the NASA INTEX-A campaign, designed to be coincident with MOPITT overpasses, as well as measurements made during the COBRA-2004 and MOZAIC experiments, provided valuable validation comparisons. On average, the MOPITT CO retrievals are biased slightly high for these North America locations. While the mean bias differs between the different aircraft experiments (e.g., 7.0 ppbv for MOZAIC to 18.4 ppbv for COBRA at 700 hPa), the standard deviations are quite large, so the results for the three data sets can be considered consistent. On average, it is estimayed that MOPITT is 7-14% high at 700 hPa and ∼3% high at 350 hPa. These results are consistent with the validation results for the Carr, Colorado, Harvard Forest, Massachusetts, and Poker Flats, Alaska, aircraft profiles for "phase 2" presented by Emmons et al. (2004) and are generally within the design criteria of 10% accuracy. Copyright 2007 by the American Geophysical Union.
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