Three-dimensional variational assimilation of MODIS aerosol optical depth: Implementation and application to a dust storm
aerosol optical depth (AOD) retrieval products (at 550 nm wavelength) from both Terra and Aqua satellites have been developed within the National Centers for Environmental Prediction (NCEP) Gridpoint Statistical Interpolation (GSI) three-dimensional variational (3DVAR) data assimilation system. This...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.462.3548 2023-05-15T13:06:27+02:00 Three-dimensional variational assimilation of MODIS aerosol optical depth: Implementation and application to a dust storm Over East Asia The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.462.3548 http://www.nsstc.uah.edu/~naeger/references/journals/Sundar_Journal_Papers/2011_JGR_Liu.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.462.3548 http://www.nsstc.uah.edu/~naeger/references/journals/Sundar_Journal_Papers/2011_JGR_Liu.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.nsstc.uah.edu/~naeger/references/journals/Sundar_Journal_Papers/2011_JGR_Liu.pdf text ftciteseerx 2016-10-16T00:04:22Z aerosol optical depth (AOD) retrieval products (at 550 nm wavelength) from both Terra and Aqua satellites have been developed within the National Centers for Environmental Prediction (NCEP) Gridpoint Statistical Interpolation (GSI) three-dimensional variational (3DVAR) data assimilation system. This newly developed algorithm allows, in a one-step procedure, the analysis of 3-D mass concentration of 14 aerosol variables from the Goddard Chemistry Aerosol Radiation and Transport (GOCART) module. The Community Radiative Transfer Model (CRTM) was extended to calculate AOD using GOCART aerosol variables as input. Both the AOD forward model and corresponding Jacobian model were developed within the CRTM and used in the 3DVAR minimization algorithm to compute the AOD cost function and its gradient with respect to 3-D aerosol mass concentration. The impact of MODIS AOD data assimilation was demonstrated by application to a dust storm from 17 to 24 March 2010 over East Asia. The aerosol analyses initialized Weather Research and Forecasting/Chemistry (WRF/Chem) model forecasts. Results indicate that assimilating MODIS AOD substantially improves aerosol analyses and subsequent forecasts when compared to MODIS AOD, independent AOD observations from the Aerosol Robotic Network (AERONET) and Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument, and surface PM10 (particulate matter with diameters less than 10 mm) observations. The newly developed AOD data assimilation system can serve as a tool to improve simulations of dust storms and general air quality analyses and forecasts. Text Aerosol Robotic Network Unknown |
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aerosol optical depth (AOD) retrieval products (at 550 nm wavelength) from both Terra and Aqua satellites have been developed within the National Centers for Environmental Prediction (NCEP) Gridpoint Statistical Interpolation (GSI) three-dimensional variational (3DVAR) data assimilation system. This newly developed algorithm allows, in a one-step procedure, the analysis of 3-D mass concentration of 14 aerosol variables from the Goddard Chemistry Aerosol Radiation and Transport (GOCART) module. The Community Radiative Transfer Model (CRTM) was extended to calculate AOD using GOCART aerosol variables as input. Both the AOD forward model and corresponding Jacobian model were developed within the CRTM and used in the 3DVAR minimization algorithm to compute the AOD cost function and its gradient with respect to 3-D aerosol mass concentration. The impact of MODIS AOD data assimilation was demonstrated by application to a dust storm from 17 to 24 March 2010 over East Asia. The aerosol analyses initialized Weather Research and Forecasting/Chemistry (WRF/Chem) model forecasts. Results indicate that assimilating MODIS AOD substantially improves aerosol analyses and subsequent forecasts when compared to MODIS AOD, independent AOD observations from the Aerosol Robotic Network (AERONET) and Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument, and surface PM10 (particulate matter with diameters less than 10 mm) observations. The newly developed AOD data assimilation system can serve as a tool to improve simulations of dust storms and general air quality analyses and forecasts. |
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Over East Asia |
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Over East Asia Three-dimensional variational assimilation of MODIS aerosol optical depth: Implementation and application to a dust storm |
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Over East Asia |
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Over East Asia |
title |
Three-dimensional variational assimilation of MODIS aerosol optical depth: Implementation and application to a dust storm |
title_short |
Three-dimensional variational assimilation of MODIS aerosol optical depth: Implementation and application to a dust storm |
title_full |
Three-dimensional variational assimilation of MODIS aerosol optical depth: Implementation and application to a dust storm |
title_fullStr |
Three-dimensional variational assimilation of MODIS aerosol optical depth: Implementation and application to a dust storm |
title_full_unstemmed |
Three-dimensional variational assimilation of MODIS aerosol optical depth: Implementation and application to a dust storm |
title_sort |
three-dimensional variational assimilation of modis aerosol optical depth: implementation and application to a dust storm |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.462.3548 http://www.nsstc.uah.edu/~naeger/references/journals/Sundar_Journal_Papers/2011_JGR_Liu.pdf |
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Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
http://www.nsstc.uah.edu/~naeger/references/journals/Sundar_Journal_Papers/2011_JGR_Liu.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.462.3548 http://www.nsstc.uah.edu/~naeger/references/journals/Sundar_Journal_Papers/2011_JGR_Liu.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766006563319840768 |