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RISAssessment of Assimilating ASCAT Surface Wind Retrievals in the NCEP Global Data Assimilation System
Publisher: American Meteorological Society
Abstract: two-season Observing System Experiment (OSE) was used to quantify the impacts of assimilating the Advanced Scatterometer (ASCAT) surface winds product distributed by the European Organization for the Exploitation of ...
A Two-Season Impact Study of Four Satellite Data Types and Rawinsonde Data in the NCEP Global Data Assimilation System
Publisher: American Meteorological Society
Abstract: Extended-length observing system experiments (OSEs) during two seasons are used to quantify the contributions made to forecast quality by conventional rawinsonde data and four types of remotely sensed satellite data. The ...
A Two-Season Impact Study of the WindSat Surface Wind Retrievals in the NCEP Global Data Assimilation System
Publisher: American Meteorological Society
Abstract: A two-season observing system experiment (OSE) was used to quantify the impacts of assimilating the WindSat surface winds product developed by the Naval Research Laboratory (NRL). The impacts of assimilating these surface ...
A Four-Season Impact Study of Rawinsonde, GOES, and POES Data in the Eta Data Assimilation System. Part I: The Total Contribution
Publisher: American Meteorological Society
Abstract: The impact of in situ rawinsonde (raob) data, remotely sensed Geostationary Operational Environmental Satellite (GOES), and Polar Operational Environmental Satellite (POES) data routinely used in NCEP?s Eta Data ...
An Impact Study of Five Remotely Sensed and Five In Situ Data Types in the Eta Data Assimilation System
Publisher: American Meteorological Society
Abstract: The impact of 10 data types used in the Eta Data Assimilation/Forecast System (EDAS) is studied for extended-length time periods during three seasons. Five of the data types are remotely sensed satellite data, and the other ...
A Four-Season Impact Study of Rawinsonde, GOES, and POES Data in the Eta Data Assimilation System. Part II: Contribution of the Components
Publisher: American Meteorological Society
Abstract: The impact of in situ rawinsonde observations (raob), remotely sensed Geostationary Operational Environmental Satellite (GOES), and Polar-Orbiting Operational Environmental Satellite (POES) observations routinely used in ...
A Two-Season Impact Study of Satellite and In Situ Data in the NCEP Global Data Assimilation System
Publisher: American Meteorological Society
Abstract: Observing system experiments are used to quantify the contributions to the forecast made by conventional in situ and remotely sensed satellite data. The impact of each data type is assessed by comparing the analyses and ...
A Two-Season Impact Study of NOAA Polar-Orbiting Satellites in the NCEP Global Data Assimilation System
Publisher: American Meteorological Society
Abstract: Observing system experiments (OSEs) during two seasons are used to quantify the important contributions made to forecast quality from the use of the National Oceanic and Atmospheric Administration?s (NOAA) polar-orbiting ...
Tropical Cyclone Forecasts Impact Assessment from the Assimilation of Hourly Visible, Shortwave, and Clear-Air Water Vapor Atmospheric Motion Vectors in HWRF
Publisher: American Meteorological Society
Abstract: The assimilation of atmospheric motion vectors (AMVs) provides important wind information to conventional data-lacking oceanic regions, where tropical cyclones spend most of their lifetimes. Three new AMV types, shortwave ...
A Case Study of the Sensitivity of the Eta Data Assimilation System
Publisher: American Meteorological Society
Abstract: A case study is utilized to determine the sensitivity of the Eta Data Assimilation System (EDAS) to all operational observational data types used within it. The work described in this paper should be of interest to Eta ...