Vertical information of CO from TROPOMI total column measurements in context of the CAMS-IFS data assimilation scheme
<p>Since 2017 the Tropospheric Monitoring Instrument (TROPOMI) on board ESA's Copernicus Sentinel-5 satellite (S5-P) has provided the operational carbon monoxide (CO) data product with daily global coverage on a spatial resolution of <span class="inline-formula">5.5×7</...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2023-06-01
|
| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/16/3027/2023/amt-16-3027-2023.pdf |
| _version_ | 1797803647801753600 |
|---|---|
| author | T. Borsdorff T. Campos N. Kille N. Kille N. Kille K. J. Zarzana R. Volkamer R. Volkamer R. Volkamer J. Landgraf |
| author_facet | T. Borsdorff T. Campos N. Kille N. Kille N. Kille K. J. Zarzana R. Volkamer R. Volkamer R. Volkamer J. Landgraf |
| author_sort | T. Borsdorff |
| collection | DOAJ |
| description | <p>Since 2017 the Tropospheric Monitoring Instrument (TROPOMI) on board ESA's
Copernicus Sentinel-5 satellite (S5-P) has provided the operational carbon
monoxide (CO) data product with daily global coverage on a spatial
resolution of <span class="inline-formula">5.5×7</span> km<span class="inline-formula"><sup>2</sup></span>. The European Centre for Medium-Range Weather Forecasts (ECMWF) plans to assimilate the retrieved total columns and the corresponding vertical sensitivities in the Copernicus Atmosphere Monitoring Service Integrated Forecasting System (CAMS-IFS) to improve forecasts of the atmospheric chemical composition. The TROPOMI data will primarily constrain the vertical integrated CO field of CAMS-IFS but to a lesser extent also its vertical CO distribution. For clear-sky conditions, the vertical sensitivity of the TROPOMI CO data product is useful throughout the atmosphere, but for cloudy scenes it varies due to cloud shielding and light scattering. To assess the profile information, we deploy an a posteriori profile retrieval that combines an ensemble of TROPOMI CO column retrievals with different vertical sensitivities to obtain a vertical CO profile that is then a representative average for the chosen spatial and temporal domain. We demonstrate the approach on three CO pollution cases. For the so-called “Rabbit Foot Fire” in Idaho on 12 August 2018, we estimate a CO profile showing the pollution at an altitude of about 5 km in good agreement with airborne in situ measurements of the Biomass Burning Flux Measurements of Trace Gases and Aerosol (BB-FLUX) field campaign. The distinct CO enhancement in a plume aloft (length <span class="inline-formula">=212</span> km, width <span class="inline-formula">=34</span> km), decoupled from the ground, is sensed by TROPOMI but is not present in the CAMS-IFS model. For a large-scale event, we analyzed the CO pollution from Siberian wildfires that took place from 14 to 17 August 2018. The TROPOMI data estimate the height of the pollution plume over Canada at 7 km in agreement with
CAMS-IFS. However, CAMS-IFS underestimates the enhanced CO vertical
column densities sensed by TROPOMI within the plume by more than 100 ppb.
Finally, we study the seasonal biomass burning in the Amazon. During the
burning season the CO profile retrieved from the TROPOMI measurements (1–15 August 2019) agrees well with the one of CAMS-IFS with a similar
vertical shape between ground and 14 km altitude. Hence, our results
indicate that assimilating TROPOMI CO retrieval with different vertical
sensitivities (e.g., under clear-sky and cloudy conditions) provides information about the vertical distribution of CO.</p> |
| first_indexed | 2024-03-13T05:25:02Z |
| format | Article |
| id | doaj.art-2192296588684a3ca41994e099d3397a |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-03-13T05:25:02Z |
| publishDate | 2023-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-2192296588684a3ca41994e099d3397a2023-06-15T08:23:12ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482023-06-01163027303810.5194/amt-16-3027-2023Vertical information of CO from TROPOMI total column measurements in context of the CAMS-IFS data assimilation schemeT. Borsdorff0T. Campos1N. Kille2N. Kille3N. Kille4K. J. Zarzana5R. Volkamer6R. Volkamer7R. Volkamer8J. Landgraf9Netherlands Institute for Space Research, SRON, Leiden, the NetherlandsAtmospheric Chemistry Observations and Modeling Laboratory and Earth Observing Laboratory National Center for Atmospheric Research Boulder, Boulder, Colorado, USADepartment of Chemistry, University of Colorado Boulder, Boulder, Colorado, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, Colorado, USADepartment of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, Colorado, USADepartment of Chemistry, University of Colorado Boulder, Boulder, Colorado, USADepartment of Chemistry, University of Colorado Boulder, Boulder, Colorado, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, Colorado, USADepartment of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, Colorado, USANetherlands Institute for Space Research, SRON, Leiden, the Netherlands<p>Since 2017 the Tropospheric Monitoring Instrument (TROPOMI) on board ESA's Copernicus Sentinel-5 satellite (S5-P) has provided the operational carbon monoxide (CO) data product with daily global coverage on a spatial resolution of <span class="inline-formula">5.5×7</span> km<span class="inline-formula"><sup>2</sup></span>. The European Centre for Medium-Range Weather Forecasts (ECMWF) plans to assimilate the retrieved total columns and the corresponding vertical sensitivities in the Copernicus Atmosphere Monitoring Service Integrated Forecasting System (CAMS-IFS) to improve forecasts of the atmospheric chemical composition. The TROPOMI data will primarily constrain the vertical integrated CO field of CAMS-IFS but to a lesser extent also its vertical CO distribution. For clear-sky conditions, the vertical sensitivity of the TROPOMI CO data product is useful throughout the atmosphere, but for cloudy scenes it varies due to cloud shielding and light scattering. To assess the profile information, we deploy an a posteriori profile retrieval that combines an ensemble of TROPOMI CO column retrievals with different vertical sensitivities to obtain a vertical CO profile that is then a representative average for the chosen spatial and temporal domain. We demonstrate the approach on three CO pollution cases. For the so-called “Rabbit Foot Fire” in Idaho on 12 August 2018, we estimate a CO profile showing the pollution at an altitude of about 5 km in good agreement with airborne in situ measurements of the Biomass Burning Flux Measurements of Trace Gases and Aerosol (BB-FLUX) field campaign. The distinct CO enhancement in a plume aloft (length <span class="inline-formula">=212</span> km, width <span class="inline-formula">=34</span> km), decoupled from the ground, is sensed by TROPOMI but is not present in the CAMS-IFS model. For a large-scale event, we analyzed the CO pollution from Siberian wildfires that took place from 14 to 17 August 2018. The TROPOMI data estimate the height of the pollution plume over Canada at 7 km in agreement with CAMS-IFS. However, CAMS-IFS underestimates the enhanced CO vertical column densities sensed by TROPOMI within the plume by more than 100 ppb. Finally, we study the seasonal biomass burning in the Amazon. During the burning season the CO profile retrieved from the TROPOMI measurements (1–15 August 2019) agrees well with the one of CAMS-IFS with a similar vertical shape between ground and 14 km altitude. Hence, our results indicate that assimilating TROPOMI CO retrieval with different vertical sensitivities (e.g., under clear-sky and cloudy conditions) provides information about the vertical distribution of CO.</p>https://amt.copernicus.org/articles/16/3027/2023/amt-16-3027-2023.pdf |
| spellingShingle | T. Borsdorff T. Campos N. Kille N. Kille N. Kille K. J. Zarzana R. Volkamer R. Volkamer R. Volkamer J. Landgraf Vertical information of CO from TROPOMI total column measurements in context of the CAMS-IFS data assimilation scheme Atmospheric Measurement Techniques |
| title | Vertical information of CO from TROPOMI total column measurements in context of the CAMS-IFS data assimilation scheme |
| title_full | Vertical information of CO from TROPOMI total column measurements in context of the CAMS-IFS data assimilation scheme |
| title_fullStr | Vertical information of CO from TROPOMI total column measurements in context of the CAMS-IFS data assimilation scheme |
| title_full_unstemmed | Vertical information of CO from TROPOMI total column measurements in context of the CAMS-IFS data assimilation scheme |
| title_short | Vertical information of CO from TROPOMI total column measurements in context of the CAMS-IFS data assimilation scheme |
| title_sort | vertical information of co from tropomi total column measurements in context of the cams ifs data assimilation scheme |
| url | https://amt.copernicus.org/articles/16/3027/2023/amt-16-3027-2023.pdf |
| work_keys_str_mv | AT tborsdorff verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme AT tcampos verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme AT nkille verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme AT nkille verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme AT nkille verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme AT kjzarzana verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme AT rvolkamer verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme AT rvolkamer verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme AT rvolkamer verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme AT jlandgraf verticalinformationofcofromtropomitotalcolumnmeasurementsincontextofthecamsifsdataassimilationscheme |