TY - JOUR
T1 - The MOPITT Version 9 CO product
T2 - sampling enhancements and validation
AU - Deeter, Merritt
AU - Francis, Gene
AU - Gille, John
AU - Mao, Debbie
AU - Martínez-Alonso, Sara
AU - Worden, Helen
AU - Ziskin, Dan
AU - Drummond, James
AU - Commane, Róisín
AU - Diskin, Glenn
AU - McKain, Kathryn
N1 - Publisher Copyright:
© 2022 Merritt Deeter et al.
PY - 2022/4/19
Y1 - 2022/4/19
N2 - Characteristics of the Version 9 (V9) MOPITT (Measurements of Pollution in the Troposphere) satellite retrieval product for tropospheric carbon monoxide (CO) are described. The new V9 product includes many CO retrievals over land which, in previous MOPITT product versions, would have been discarded by the cloud detection algorithm. Globally, the number of daytime MOPITT retrievals over land has increased by 30g%-40g% relative to the Version 8 product, although the increase in retrieval coverage exhibits significant geographical variability. Areas benefiting from the improved cloud detection performance include (but are not limited to) source regions often characterized by high aerosol concentrations. The V9 MOPITT product also incorporates a modified calibration strategy for the MOPITT near-infrared (NIR) CO channels, resulting in greater temporal consistency for the NIR-only and thermal-infrared-near-infrared (TIR-NIR) retrieval variants. Validation results based on in situ CO profiles acquired from aircraft in a variety of contexts indicate that retrieval biases for V9 are typically within the range of ±5g% and are generally comparable to results for the V8 product.
AB - Characteristics of the Version 9 (V9) MOPITT (Measurements of Pollution in the Troposphere) satellite retrieval product for tropospheric carbon monoxide (CO) are described. The new V9 product includes many CO retrievals over land which, in previous MOPITT product versions, would have been discarded by the cloud detection algorithm. Globally, the number of daytime MOPITT retrievals over land has increased by 30g%-40g% relative to the Version 8 product, although the increase in retrieval coverage exhibits significant geographical variability. Areas benefiting from the improved cloud detection performance include (but are not limited to) source regions often characterized by high aerosol concentrations. The V9 MOPITT product also incorporates a modified calibration strategy for the MOPITT near-infrared (NIR) CO channels, resulting in greater temporal consistency for the NIR-only and thermal-infrared-near-infrared (TIR-NIR) retrieval variants. Validation results based on in situ CO profiles acquired from aircraft in a variety of contexts indicate that retrieval biases for V9 are typically within the range of ±5g% and are generally comparable to results for the V8 product.
UR - https://www.scopus.com/pages/publications/85129126572
U2 - 10.5194/amt-15-2325-2022
DO - 10.5194/amt-15-2325-2022
M3 - Article
AN - SCOPUS:85129126572
SN - 1867-1381
VL - 15
SP - 2325
EP - 2344
JO - Atmospheric Measurement Techniques
JF - Atmospheric Measurement Techniques
IS - 8
ER -