The MOPITT Version 9 CO product: sampling enhancements and validation
<p>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 d...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2022-04-01
|
| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/15/2325/2022/amt-15-2325-2022.pdf |
| _version_ | 1818049296635789312 |
|---|---|
| author | M. Deeter G. Francis J. Gille D. Mao S. Martínez-Alonso H. Worden D. Ziskin J. Drummond J. Drummond R. Commane G. Diskin K. McKain K. McKain |
| author_facet | M. Deeter G. Francis J. Gille D. Mao S. Martínez-Alonso H. Worden D. Ziskin J. Drummond J. Drummond R. Commane G. Diskin K. McKain K. McKain |
| author_sort | M. Deeter |
| collection | DOAJ |
| description | <p>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 30 %–40 % 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 <span class="inline-formula">±</span>5 % and are generally comparable to results for the V8 product.</p> |
| first_indexed | 2024-12-10T10:35:20Z |
| format | Article |
| id | doaj.art-d43f5e245f7648719489986ccdff5c55 |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-12-10T10:35:20Z |
| publishDate | 2022-04-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-d43f5e245f7648719489986ccdff5c552022-12-22T01:52:27ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482022-04-01152325234410.5194/amt-15-2325-2022The MOPITT Version 9 CO product: sampling enhancements and validationM. Deeter0G. Francis1J. Gille2D. Mao3S. Martínez-Alonso4H. Worden5D. Ziskin6J. Drummond7J. Drummond8R. Commane9G. Diskin10K. McKain11K. McKain12Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USAAtmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USAAtmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USAAtmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USAAtmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USAAtmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USAAtmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USADepartment of Physics, University of Toronto, Toronto, Ontario, CanadaDepartment of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, CanadaDepartment of Earth and Environmental Sciences, Lamont–Doherty Earth Observatory, Columbia University, Palisades, NY, USALangley Research Center, NASA, Hampton, VA, USAGlobal Monitoring Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA<p>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 30 %–40 % 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 <span class="inline-formula">±</span>5 % and are generally comparable to results for the V8 product.</p>https://amt.copernicus.org/articles/15/2325/2022/amt-15-2325-2022.pdf |
| spellingShingle | M. Deeter G. Francis J. Gille D. Mao S. Martínez-Alonso H. Worden D. Ziskin J. Drummond J. Drummond R. Commane G. Diskin K. McKain K. McKain The MOPITT Version 9 CO product: sampling enhancements and validation Atmospheric Measurement Techniques |
| title | The MOPITT Version 9 CO product: sampling enhancements and validation |
| title_full | The MOPITT Version 9 CO product: sampling enhancements and validation |
| title_fullStr | The MOPITT Version 9 CO product: sampling enhancements and validation |
| title_full_unstemmed | The MOPITT Version 9 CO product: sampling enhancements and validation |
| title_short | The MOPITT Version 9 CO product: sampling enhancements and validation |
| title_sort | mopitt version 9 co product sampling enhancements and validation |
| url | https://amt.copernicus.org/articles/15/2325/2022/amt-15-2325-2022.pdf |
| work_keys_str_mv | AT mdeeter themopittversion9coproductsamplingenhancementsandvalidation AT gfrancis themopittversion9coproductsamplingenhancementsandvalidation AT jgille themopittversion9coproductsamplingenhancementsandvalidation AT dmao themopittversion9coproductsamplingenhancementsandvalidation AT smartinezalonso themopittversion9coproductsamplingenhancementsandvalidation AT hworden themopittversion9coproductsamplingenhancementsandvalidation AT dziskin themopittversion9coproductsamplingenhancementsandvalidation AT jdrummond themopittversion9coproductsamplingenhancementsandvalidation AT jdrummond themopittversion9coproductsamplingenhancementsandvalidation AT rcommane themopittversion9coproductsamplingenhancementsandvalidation AT gdiskin themopittversion9coproductsamplingenhancementsandvalidation AT kmckain themopittversion9coproductsamplingenhancementsandvalidation AT kmckain themopittversion9coproductsamplingenhancementsandvalidation AT mdeeter mopittversion9coproductsamplingenhancementsandvalidation AT gfrancis mopittversion9coproductsamplingenhancementsandvalidation AT jgille mopittversion9coproductsamplingenhancementsandvalidation AT dmao mopittversion9coproductsamplingenhancementsandvalidation AT smartinezalonso mopittversion9coproductsamplingenhancementsandvalidation AT hworden mopittversion9coproductsamplingenhancementsandvalidation AT dziskin mopittversion9coproductsamplingenhancementsandvalidation AT jdrummond mopittversion9coproductsamplingenhancementsandvalidation AT jdrummond mopittversion9coproductsamplingenhancementsandvalidation AT rcommane mopittversion9coproductsamplingenhancementsandvalidation AT gdiskin mopittversion9coproductsamplingenhancementsandvalidation AT kmckain mopittversion9coproductsamplingenhancementsandvalidation AT kmckain mopittversion9coproductsamplingenhancementsandvalidation |