Simulation of trace gases and aerosols over the Indian domain: evaluation of the WRF-Chem Model
The "online" meteorological and chemical transport Weather Research and Forecasting/Chemistry (WRF-Chem) model has been implemented over the Indian subcontinent for three consecutive summers in 2008, 2009 and 2010 to study the aerosol properties over the domain. The initial and boundary co...
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ftcopernicus:oai:publications.copernicus.org:acpd19315 2023-05-15T13:06:38+02:00 Simulation of trace gases and aerosols over the Indian domain: evaluation of the WRF-Chem Model Michael, M. Yadav, A. Tripathi, S. N. Kanawade, V. P. Gaur, A. Sadavarte, P. Venkataraman, C. 2018-08-10 application/pdf https://doi.org/10.5194/acpd-13-12287-2013 https://www.atmos-chem-phys-discuss.net/acp-2013-137/ eng eng doi:10.5194/acpd-13-12287-2013 https://www.atmos-chem-phys-discuss.net/acp-2013-137/ eISSN: 1680-7324 Text 2018 ftcopernicus https://doi.org/10.5194/acpd-13-12287-2013 2019-12-24T09:55:22Z The "online" meteorological and chemical transport Weather Research and Forecasting/Chemistry (WRF-Chem) model has been implemented over the Indian subcontinent for three consecutive summers in 2008, 2009 and 2010 to study the aerosol properties over the domain. The initial and boundary conditions are obtained from NCAR reanalysis data. The emission rates of sulfur dioxide, black carbon, organic carbon and PM 2.5 , which are developed over India at a grid resolution of 0.25° × 0.25° have been used in the present study. The remaining emissions are obtained from global inventories (RETRO and EDGAR). The model simulated the meteorological parameters, trace gases and particulate matter. Predicted mixing ratios of trace gases (Ozone, carbon monoxide and sulfur dioxide) are compared with ground based observations over Kanpur. Simulated aerosol optical depth are compared with those observed at nine Aerosol Robotic Network stations (AERONET). The simulations show that the aerosol optical depth of the less polluted regions is better simulated compared to that of the locations where the aerosol loading is very high. The vertical profiles of extinction coefficient observed at Kanpur Micropulse Lidar Network (MPLNET) station is in agreement with the simulated values for altitudes greater than 1.5 km and qualitatively simulate the elevated layers of aerosols. The simulated mass concentration of black carbon shows very good correlation with observations, due to the better local emission inventory used. The vertical profiles of black carbon at various locations have also been compared with observations from aircraft campaign held during pre-monsoon period of 2008 and 2009 resulting in good agreement. This study shows that WRF-Chem model captures many important features of the observations and therefore can be used for understanding and predicting regional atmospheric composition over Indian subcontinent. Text Aerosol Robotic Network Copernicus Publications: E-Journals Indian |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
The "online" meteorological and chemical transport Weather Research and Forecasting/Chemistry (WRF-Chem) model has been implemented over the Indian subcontinent for three consecutive summers in 2008, 2009 and 2010 to study the aerosol properties over the domain. The initial and boundary conditions are obtained from NCAR reanalysis data. The emission rates of sulfur dioxide, black carbon, organic carbon and PM 2.5 , which are developed over India at a grid resolution of 0.25° × 0.25° have been used in the present study. The remaining emissions are obtained from global inventories (RETRO and EDGAR). The model simulated the meteorological parameters, trace gases and particulate matter. Predicted mixing ratios of trace gases (Ozone, carbon monoxide and sulfur dioxide) are compared with ground based observations over Kanpur. Simulated aerosol optical depth are compared with those observed at nine Aerosol Robotic Network stations (AERONET). The simulations show that the aerosol optical depth of the less polluted regions is better simulated compared to that of the locations where the aerosol loading is very high. The vertical profiles of extinction coefficient observed at Kanpur Micropulse Lidar Network (MPLNET) station is in agreement with the simulated values for altitudes greater than 1.5 km and qualitatively simulate the elevated layers of aerosols. The simulated mass concentration of black carbon shows very good correlation with observations, due to the better local emission inventory used. The vertical profiles of black carbon at various locations have also been compared with observations from aircraft campaign held during pre-monsoon period of 2008 and 2009 resulting in good agreement. This study shows that WRF-Chem model captures many important features of the observations and therefore can be used for understanding and predicting regional atmospheric composition over Indian subcontinent. |
format |
Text |
author |
Michael, M. Yadav, A. Tripathi, S. N. Kanawade, V. P. Gaur, A. Sadavarte, P. Venkataraman, C. |
spellingShingle |
Michael, M. Yadav, A. Tripathi, S. N. Kanawade, V. P. Gaur, A. Sadavarte, P. Venkataraman, C. Simulation of trace gases and aerosols over the Indian domain: evaluation of the WRF-Chem Model |
author_facet |
Michael, M. Yadav, A. Tripathi, S. N. Kanawade, V. P. Gaur, A. Sadavarte, P. Venkataraman, C. |
author_sort |
Michael, M. |
title |
Simulation of trace gases and aerosols over the Indian domain: evaluation of the WRF-Chem Model |
title_short |
Simulation of trace gases and aerosols over the Indian domain: evaluation of the WRF-Chem Model |
title_full |
Simulation of trace gases and aerosols over the Indian domain: evaluation of the WRF-Chem Model |
title_fullStr |
Simulation of trace gases and aerosols over the Indian domain: evaluation of the WRF-Chem Model |
title_full_unstemmed |
Simulation of trace gases and aerosols over the Indian domain: evaluation of the WRF-Chem Model |
title_sort |
simulation of trace gases and aerosols over the indian domain: evaluation of the wrf-chem model |
publishDate |
2018 |
url |
https://doi.org/10.5194/acpd-13-12287-2013 https://www.atmos-chem-phys-discuss.net/acp-2013-137/ |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acpd-13-12287-2013 https://www.atmos-chem-phys-discuss.net/acp-2013-137/ |
op_doi |
https://doi.org/10.5194/acpd-13-12287-2013 |
_version_ |
1766014070536798208 |