Satellite quantitative remote sensing method of offshore weather visibility

Abstract

The present invention relates to a satellite quantitative remote sensing method of sea weather visibility. Said method includes the following steps: firstly, converting NOAA and MODIS satellite electric signals into digital signals and outputting original IB image data; making original IB image data respectively undergo the processes of geometric correction and projection conversion, sensor radiation correction, planetary reflectivity calculation and atmospheric condition identification and classification, then according to visibility actual measured data respectively adopting visibility space continuation and atmospheric parameter solving process to make visibility quantitative calculation, and displaying calculated result and outputting according to JPG image form.

Description

technical field [0001] The invention relates to a satellite quantitative remote sensing method for marine meteorological visibility in dynamic monitoring of marine environment Background technique [0002] Meteorological visibility has an important impact on aviation, navigation, land transportation and military activities. In recent years, major traffic accidents, marine disasters, air crashes and other accidents caused by excessively low visibility have occurred frequently. Therefore, it is of great significance to monitor and forecast visibility, especially low visibility. The conventional visibility monitoring method is often to conduct manual or automatic instrument observation by arranging stations on land and sea surfaces, which not only consumes a lot of manpower and material resources, but also the setting density and observation density of observation stations are difficult to meet the monitoring needs. Due to the lack of sufficient and accurate sea surface observ...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problems of difficulty in arranging visibility observation stations in coastal and large-scale sea areas and limited density of observation data, and adopts the existing meteorological remote sensing observation data NOAA / AVHRR (Advanced Very High Resolution Radiometer) and new remote sensing data EOS -MODIS (Moderate Resolution Imaging SpectroradioMeter) is used as the basic data to process the remote sensing data in real time and output the visibility level distribution map in a large area along the coast and at sea. The specific methods or steps are as follows:

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