author_facet Li, Xuanli
Mecikalski, John R.
Srikishen, Jayanthi
Zavodsky, Bradley
Petersen, Walter A.
Li, Xuanli
Mecikalski, John R.
Srikishen, Jayanthi
Zavodsky, Bradley
Petersen, Walter A.
author Li, Xuanli
Mecikalski, John R.
Srikishen, Jayanthi
Zavodsky, Bradley
Petersen, Walter A.
spellingShingle Li, Xuanli
Mecikalski, John R.
Srikishen, Jayanthi
Zavodsky, Bradley
Petersen, Walter A.
Journal of Advances in Modeling Earth Systems
Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
General Earth and Planetary Sciences
Environmental Chemistry
Global and Planetary Change
author_sort li, xuanli
spelling Li, Xuanli Mecikalski, John R. Srikishen, Jayanthi Zavodsky, Bradley Petersen, Walter A. 1942-2466 1942-2466 American Geophysical Union (AGU) General Earth and Planetary Sciences Environmental Chemistry Global and Planetary Change http://dx.doi.org/10.1029/2019ms001618 <jats:title>Abstract</jats:title><jats:p>The National Aeronautics and Space Administration‐Japan Aerospace Exploration Agency Global Precipitation Measurement (GPM) mission consists of a multisatellite constellation that provides real‐time or near‐real‐time global observations of rain and snow. In this study, GPM Level 3 Integrated Multi‐satellitE Retrievals for GPM (IMERG) and Level 2 GPM Microwave Imager Goddard Profiling rainfall products have been assimilated into the Weather Research and Forecasting model using the community Gridpoint Statistical Interpolation (GSI) data assimilation system. Experiments have been conducted and compared to demonstrate the impact of rain rate data assimilation on forecasts of heavy rainfall related to Hurricane Harvey (2017) and moderate to light rainfall observed during the GPM Integrated Precipitation and Hydrology Experiment field campaign. The results indicate that both GPM Microwave Imager Goddard Profiling and IMERG data could generate apparent increments in moisture, temperature, wind, and pressure fields for Hurricane Harvey, which led to significant improvement in the precipitation forecast. Frequent (every 3 hr) assimilation of IMERG data also positively impacted the short‐term precipitation forecast skill for the Integrated Precipitation and Hydrology Experiment moderate to light rain events. However, results also indicate that the impact of rain data assimilation was limited for a system that had a small horizontal dimension with low rain rates and within a relatively stable synoptic environment.</jats:p> Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events Journal of Advances in Modeling Earth Systems
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title Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_unstemmed Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_full Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_fullStr Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_full_unstemmed Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_short Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_sort assimilation of gpm rain rate products with gsi data assimilation system for heavy and light precipitation events
topic General Earth and Planetary Sciences
Environmental Chemistry
Global and Planetary Change
url http://dx.doi.org/10.1029/2019ms001618
publishDate 2020
physical
description <jats:title>Abstract</jats:title><jats:p>The National Aeronautics and Space Administration‐Japan Aerospace Exploration Agency Global Precipitation Measurement (GPM) mission consists of a multisatellite constellation that provides real‐time or near‐real‐time global observations of rain and snow. In this study, GPM Level 3 Integrated Multi‐satellitE Retrievals for GPM (IMERG) and Level 2 GPM Microwave Imager Goddard Profiling rainfall products have been assimilated into the Weather Research and Forecasting model using the community Gridpoint Statistical Interpolation (GSI) data assimilation system. Experiments have been conducted and compared to demonstrate the impact of rain rate data assimilation on forecasts of heavy rainfall related to Hurricane Harvey (2017) and moderate to light rainfall observed during the GPM Integrated Precipitation and Hydrology Experiment field campaign. The results indicate that both GPM Microwave Imager Goddard Profiling and IMERG data could generate apparent increments in moisture, temperature, wind, and pressure fields for Hurricane Harvey, which led to significant improvement in the precipitation forecast. Frequent (every 3 hr) assimilation of IMERG data also positively impacted the short‐term precipitation forecast skill for the Integrated Precipitation and Hydrology Experiment moderate to light rain events. However, results also indicate that the impact of rain data assimilation was limited for a system that had a small horizontal dimension with low rain rates and within a relatively stable synoptic environment.</jats:p>
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author Li, Xuanli, Mecikalski, John R., Srikishen, Jayanthi, Zavodsky, Bradley, Petersen, Walter A.
author_facet Li, Xuanli, Mecikalski, John R., Srikishen, Jayanthi, Zavodsky, Bradley, Petersen, Walter A., Li, Xuanli, Mecikalski, John R., Srikishen, Jayanthi, Zavodsky, Bradley, Petersen, Walter A.
author_sort li, xuanli
container_issue 5
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description <jats:title>Abstract</jats:title><jats:p>The National Aeronautics and Space Administration‐Japan Aerospace Exploration Agency Global Precipitation Measurement (GPM) mission consists of a multisatellite constellation that provides real‐time or near‐real‐time global observations of rain and snow. In this study, GPM Level 3 Integrated Multi‐satellitE Retrievals for GPM (IMERG) and Level 2 GPM Microwave Imager Goddard Profiling rainfall products have been assimilated into the Weather Research and Forecasting model using the community Gridpoint Statistical Interpolation (GSI) data assimilation system. Experiments have been conducted and compared to demonstrate the impact of rain rate data assimilation on forecasts of heavy rainfall related to Hurricane Harvey (2017) and moderate to light rainfall observed during the GPM Integrated Precipitation and Hydrology Experiment field campaign. The results indicate that both GPM Microwave Imager Goddard Profiling and IMERG data could generate apparent increments in moisture, temperature, wind, and pressure fields for Hurricane Harvey, which led to significant improvement in the precipitation forecast. Frequent (every 3 hr) assimilation of IMERG data also positively impacted the short‐term precipitation forecast skill for the Integrated Precipitation and Hydrology Experiment moderate to light rain events. However, results also indicate that the impact of rain data assimilation was limited for a system that had a small horizontal dimension with low rain rates and within a relatively stable synoptic environment.</jats:p>
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spelling Li, Xuanli Mecikalski, John R. Srikishen, Jayanthi Zavodsky, Bradley Petersen, Walter A. 1942-2466 1942-2466 American Geophysical Union (AGU) General Earth and Planetary Sciences Environmental Chemistry Global and Planetary Change http://dx.doi.org/10.1029/2019ms001618 <jats:title>Abstract</jats:title><jats:p>The National Aeronautics and Space Administration‐Japan Aerospace Exploration Agency Global Precipitation Measurement (GPM) mission consists of a multisatellite constellation that provides real‐time or near‐real‐time global observations of rain and snow. In this study, GPM Level 3 Integrated Multi‐satellitE Retrievals for GPM (IMERG) and Level 2 GPM Microwave Imager Goddard Profiling rainfall products have been assimilated into the Weather Research and Forecasting model using the community Gridpoint Statistical Interpolation (GSI) data assimilation system. Experiments have been conducted and compared to demonstrate the impact of rain rate data assimilation on forecasts of heavy rainfall related to Hurricane Harvey (2017) and moderate to light rainfall observed during the GPM Integrated Precipitation and Hydrology Experiment field campaign. The results indicate that both GPM Microwave Imager Goddard Profiling and IMERG data could generate apparent increments in moisture, temperature, wind, and pressure fields for Hurricane Harvey, which led to significant improvement in the precipitation forecast. Frequent (every 3 hr) assimilation of IMERG data also positively impacted the short‐term precipitation forecast skill for the Integrated Precipitation and Hydrology Experiment moderate to light rain events. However, results also indicate that the impact of rain data assimilation was limited for a system that had a small horizontal dimension with low rain rates and within a relatively stable synoptic environment.</jats:p> Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events Journal of Advances in Modeling Earth Systems
spellingShingle Li, Xuanli, Mecikalski, John R., Srikishen, Jayanthi, Zavodsky, Bradley, Petersen, Walter A., Journal of Advances in Modeling Earth Systems, Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events, General Earth and Planetary Sciences, Environmental Chemistry, Global and Planetary Change
title Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_full Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_fullStr Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_full_unstemmed Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_short Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
title_sort assimilation of gpm rain rate products with gsi data assimilation system for heavy and light precipitation events
title_unstemmed Assimilation of GPM Rain Rate Products With GSI Data Assimilation System for Heavy and Light Precipitation Events
topic General Earth and Planetary Sciences, Environmental Chemistry, Global and Planetary Change
url http://dx.doi.org/10.1029/2019ms001618