Impact of Gridded Surface Wind/wind-stress Data Set Constructed by Satellite Scatterometer Data
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منابع مشابه
Statistical Characterization of Zonal and Meridional Ocean Wind Stress
Four years of ocean vector wind data are used to evaluate statistics of wind stress over the ocean. Raw swath wind stresses derived from the Quick Scatterometer (QuikSCAT) are compared with five different global gridded wind products, including products based on scatterometer observations, meteorological analysis winds from the European Centre for Medium-Range Weather Forecasts, and reanalysis ...
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The impact of ERS scatterometer winds on the European Centre for Medium-Range Weather Forecasts (ECMWF) three-dimensional variational (3D-Var) and four-dimensional variational (4D-Var) assimilation systems is investigated. ERS scatterometer winds are found to be of consistent high quality in comparison to other surface wind observations. Both 3D-Var and 4D-Var systems assimilate the data well a...
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Different measures of wind influence the ocean in different ways. In particular, the time-averaged mixed layer turbulent energy production rate is proportional to !u *", where u* is the “oceanic friction velocity” that is based on wind stress. Estimating !u *" from monthly averages of wind stress or wind speed may introduce large biases due to the day-to-day variability of the direction and mag...
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Scatterometers estimate the relative atmosphere–ocean motion at spatially high resolution and provide accurate inertial-scale ocean wind forcing information, which is crucial for many ocean, atmosphere, and climate applications. An empirical scatterometer ocean stress (SOS) product is estimated and validated using available statistical information. A triple collocation dataset of scatterometer,...
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The rise of satellite altimetry is a revolution in the ocean sciences. Due to its global coverage and its high resolution, altimetry classically outperforms in situ water level measurement. Ekman and geostrophic currents are large parts of the ocean’s current, playing a vital role in global climate variations. According to the classic oceanography, Ekman and geostrophic currents can be calculat...
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تاریخ انتشار 2002