关键词: 遥感, 海雾, 福建沿海, 多源卫星数据

Abstract: The temporal and spacial variation characteristic,and the remote sensing monitor method of sea fog in Fujian coastal region were studied based on visibility of 2000-2010 of eighteen meteorological stations, and the visible,near infrared,short infrared,middle infrared,far infrared band data of NOAA/AVHRR,FY-1D/CAVHRR,EOS/MODIS satellite sensors, moreover,the spectrum reflection and radiation characteristics of different earth surface,such as ocean,middle high level cloud,low level cloud,sea fog, were analyzed by using a lot of satellite remote sensing images .The various remote sensing monitor index were analyzed and the threshold of index were established based on notable spectrum reflection and radiation characteristics difference between the sea fog and other earth surface, finally, the sea fog monitor model of EOS, FY-1D, NOAA-17, NOAA-16/18 satellite in Fujian coastal region were established.The results showed that 90% sea fog of Fujian coastal region occurred in Jan. to May and more occurred in wee hours and the middle south of Fujian coastal region was main fountain area of sea fog. The sea fog monitor results were verified by using the visibility data of meteorological observing stations in Fujian coastal region and the veracity of sea fog monitor model was 83% in the mass, this proved that the sea fog remote sensing monitor model based on various satellite sensors can reasonably describe the distribution status of sea fog, and can dynamically monitor the distribution and developing process of sea fog, and so sea fog remote sensing monitor reduced loss to agriculture production, controlled environment agriculture especially, in Fujian coastal region when correlative measure were adopted after heavy fog occurred.

Key words: Remote sensing, Sea fog, Fujian coastal region, Various satellite data