Fusion inversion method and device for sea wave significant wave height field

Abstract

The invention provides a fusion inversion method and device for a sea wave significant wave height field. The method comprises steps as follows: acquiring a significant wave height field which is acquired by a spaceborne radar height gauge and comprises substellar point sea wave significant wave height data as well as a sea surface wind field which is acquired by a spaceborne microwave scatterometer and comprises wide swath sea surface wind speed data; performing conversion calculation processing on the acquired sea surface wind field according to the wind wave growth relation between sea surface wind speeds and sea wave significant wave heights, and obtaining a wind wave field having the same swath as the sea surface wind field; performing correction processing on the wind wave field according to the acquired significant wave height field, and obtaining the sea wave significant wave height field having the same swath as the sea surface wind field; providing the sea surface wind field with wide swath, high precision and high spatial resolution through the spaceborne microwave scatterometer, converting the sea surface wind field acquired by the scatterometer into the wind wave field according to the wind wave growth relation, performing correction processing on the wind wave field through the significant wave height field of the height gauge, and finally, obtaining the significant wave height field with wide swath, high precision and high spatial resolution.

Description

technical field [0001] The invention relates to the field of ocean detection, in particular to a fusion inversion method and device for effective wave height field of ocean waves. Background technique [0002] Waves are the most common phenomenon on the ocean surface and one of the most important factors affecting the safety of maritime activities such as shipping. At present, activities such as ocean development are becoming more and more active. Therefore, an accurate description of ocean waves is of great significance to the safety of life and property. At the same time, since the live wave is the basis and starting point for carrying out wave forecasting and forecasting technology research, and improving the accuracy of wave forecasting, it is extremely important to obtain accurate wave fields for wave forecasting and marine activities. [0003] Buoy observation and ship observation are traditional wave observation methods. Among them, the buoy observation results are ...

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Problems solved by technology

[0004] The inventor found in the research that the wave field obtained by buoys and space-borne radar altimeters in the prior art has relatively large limitations in spatial coverage and temporal-spatial resolution, and it is difficult to meet the ever-growing fine-grained forecasting of waves. and the needs and requirements of maritime activities

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