Multi-source microwave remote sensing sea surface wind field data fusion method and multi-source microwave remote sensing sea surface wind field data fusion device

A sea surface wind field and data fusion technology, applied in the direction of measurement devices, radio wave measurement systems, radio wave reflection/re-radiation, etc., can solve the problems of low spatial resolution, not fine enough, lack of coverage, etc., and achieve high resolution rate, realize interpolation error correction, and make up for the effect of insufficient spatial resolution
CN109100717AActive Publication Date: 2018-12-28GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
Publication Date
2018-12-28

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Abstract

The invention discloses a multi-source microwave remote sensing sea surface wind field data fusion method and a multi-source microwave remote sensing sea surface wind field data fusion device, aimingat the technical problem that existing sea surface wind field products generated based on a scatterometer has wide coverage but low spatial resolution. The method firstly improves the resolution by downscaling through a face-to-point kriging interpolation under the premise of maintaining the precision as much as possible, and then uses a geographic difference analysis method to fuse the SAR to invert a high-resolution wind field and a downscaled wind field, thereby realizing correction of interpolation errors, and generating high-resolution and high-precision sea surface wind field products, which makes up for the shortcomings of insufficient spatial resolution of existing sea breeze products.
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Description

technical field

[0001] The invention relates to the field of quantitative remote sensing data inversion, in particular to a multi-source microwave remote sensing sea surface wind field data fusion method and a device thereof. Background technique

[0002] Microwave scatterometers and radiometers can effectively obtain information on global sea surface wind fields, and are widely used in ocean wind fields, wave fields, weather forecasts, and ocean and atmospheric research, but the spatial resolution is low, 25-50 km, and it is impossible to monitor small and medium sea surface winds. Scale fluctuation and estimation of wind field within 50km near shore. The altimeter can only measure the nadir point, with a resolution of 7 km along the track, but lacks information on the wind direction of the sea surface, and the sweep width is very narrow. Compared with the above-mentioned active and passive microwave sensors, the advantage of synthetic aperture radar (Synthetic Aperture Ra...

Claims

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