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Τίτλος: Quikscat Radiometer (QRad) rain rates level 2B data product
Συγγραφείς: Kasparis, Takis 
Ahmad, Khalil A. 
Jones, Wilma L. 
metadata.dc.contributor.other: Κασπαρής, Τάκης
Major Field of Science: Engineering and Technology
Field Category: Electrical Engineering - Electronic Engineering - Information Engineering
Λέξεις-κλειδιά: Geoscience;Signal processing;Microwave circuits;Radiometers
Ημερομηνία Έκδοσης: 2006
Πηγή: International Geoscience and Remote Sensing Symposium, 2006, pp. 4126-4129
Conference: International Geoscience and Remote Sensing Symposium (IGARSS) 
Περίληψη: The scatterometer SeaWinds onboard the QuikSCAT satellite measures the ocean normalized radar cross section to infer the surface wind vector. In addition, SeaWinds simultaneously measures the polarized microwave brightness temperature of the ocean/atmosphere, and this passive microwave measurement capability is known as the QuikSCAT Radiometer (QRad). Microwave brightness temperatures measured by QRad are used to infer instantaneous rain rates over oceans using a statistical retrieval algorithm that has been developed using collocated QRad brightness temperatures with Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) rain rate measurements. In this paper, QRad retrieved rain rate examples are presented and comparisons are made with the standard TRMM 2A12 data product. Validation results demonstrate that QRad rain measurements agree well with these independent microwave rain observations. QRad rain estimates starting from 1999 will be available in JPL reprocessing of QuikSCAT winds as part of the level 2B science data product. These rain estimates can be potentially used to improve flagging of rain-contaminated oceanic wind vector retrievals. Moreover, the broad swath coverage of QRad affords additional independent sampling of the oceanic rain, thus, QRad rain retrievals have the potential for contributing to NASA's Precipitation Measurement Mission objectives of improving the global sampling of oceanic rain within 3 hour windows.
ISBN: 0-7803-9510-7
DOI: 10.1109/IGARSS.2006.1058
Rights: © 2006 IEEE
Type: Conference Papers
Affiliation: University of Central Florida 
Affiliation: University of Central Florida 
Publication Type: Peer Reviewed
Εμφανίζεται στις συλλογές:Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation

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