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1988年黑龙江省遭受了40年来最为严重的春涝灾害,全省受涝面积达5000多万亩,其中明水地块达1400多万亩。全省总播种面积40％以上的耕地为水份饱和与明水地块。经春涝的实地调查证实,气象卫星信息能监视大范围地区的春涝。是否受春涝的地区,不论定性的图象或定量的数字资料,两者所示差别均很明显。受春涝的耕地在图象上呈暗兰色,明水地块呈深暗兰色;未受春涝的耕地,则呈粉红色。另外,受春涝的耕地与草原的界线明显,否则界线不清楚。同样受涝耕地上的明水块与水泡子或水库在图上的色调就不一样,定量数字资料的值也相异。
In 1988, Heilongjiang Province suffered the most serious spring flood in 40 years. The province’s waterlogging area reached more than 50 million mu, of which, more than 14 million mu were found in the Ming Shui block. The province’s total sown area of more than 40% of the arable land for water saturation and water block. Field investigation by spring flood confirmed that meteorological satellite information can monitor the spring floods in a wide area. Whether the areas affected by spring floods, whether qualitative images or quantitative digital data, the differences between the two are obvious. Affected by spring floods, the farmland is dark blue in the image, dark dark blue in the water block, and pink in the unpolluted farmland. In addition, the boundaries of cultivated land and grassland affected by spring floods are obvious, otherwise the boundary is not clear. The same waterlogged plot on the plot of water and blisters or reservoirs in the map on the color is not the same quantitative quantitative data values are also different.