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RISValidation of Vector Magnitude Datasets: Effects of Random Component Errors
Publisher: American Meteorological Society
Abstract: A statistically consistent and physically realistic approach for validating vector magnitude measurements is developed, based on a model for random measurement noise that explicitly satisfies a nonnegativity constraint for ...
Scatterometer-Based Assessment of 10-m Wind Analyses from the Operational ECMWF and NCEP Numerical Weather Prediction Models
Publisher: American Meteorological Society
Abstract: Wind measurements by the National Aeronautics and Space Administration (NASA) scatterometer (NSCAT) and the SeaWinds scatterometer on the NASA QuikSCAT satellite are compared with buoy observations to establish that the ...
The Relationship between Winds, Surface Roughness, and Radar Backscatter at Low Incidence Angles from TRMM Precipitation Radar Measurements
Publisher: American Meteorological Society
Abstract: One year of collocated, rain-free normalized backscatter cross-section measurements from the Tropical Rainfall Mapping Mission (TRMM) precipitation radar (PR) and wind speed estimates from the TRMM Microwave Imager are ...
Satellite Observations of the Wind Jets off the Pacific Coast of Central America. Part II: Regional Relationships and Dynamical Considerations
Publisher: American Meteorological Society
Abstract: Satellite estimates of winds at 10 m above the sea surface by the NASA scatterometer (NSCAT) during the 9-month period October 1996?June 1997 are analyzed to investigate the correlations between the three major wind jets ...
Satellite Observations of the Wind Jets off the Pacific Coast of Central America. Part I: Case Studies and Statistical Characteristics
Publisher: American Meteorological Society
Abstract: Measurements of near-surface winds by the NASA scatterometer (NSCAT) from October 1996 through June 1997 are analyzed to investigate the three major wind jets along the Pacific coast of Central America that blow over the ...
Sampling Errors in Wind Fields Constructed from Single and Tandem Scatterometer Datasets
Publisher: American Meteorological Society
Abstract: Sampling patterns and sampling errors from various scatterometer datasets are examined. Four single and two tandem scatterometer mission scenarios are considered. The single scatterometer missions are ERS (with a single, ...
ECMWF and ERS-1 Surface Winds over the Arabian Sea during July 1995
Publisher: American Meteorological Society
Abstract: The European Centre for Medium-Range Weather Forecasts (ECMWF) and Institut Francais Pour la Recherche et l?Exploitation de la Mer European Remote-Sensing Satellite, named IFR2, surface wind velocity data products are ...
Scatterometer Beam Balancing Using Open-Ocean Backscatter Measurements
Publisher: American Meteorological Society
Abstract: Calculation of vector winds from spaceborne fan-beam scatterometers requires that backscatter measurements from different antennas be relatively calibrated to high accuracy. A method is developed to perform postlaunch ...
Global Wind Stress and Sverdrup Circulation from the Seasat Scatterometer
Publisher: American Meteorological Society
Abstract: Three months of vector wind observations from the Seasat-A satellite scatterometer (SASS) are used to construct gridded fields of monthly average wind stress and wind stress curl over the global ocean. These fields are ...
Evaluation of Unambiguous Vector Winds from the Seasat Scatterometer
Publisher: American Meteorological Society
Abstract: Ambiguity in wind direction has long been an impediment to applications of wind observations from the Seasat scatterometer (SASS). Three months of unambiguous global SASS vector winds (7 July-10 October 1978) have recently ...