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本文基于MODIS卫星遥感数据对渤海海冰资源量进行估算。利用面向对象特征提取法提取海冰面积,运用反照率反演模型计算海冰厚度,进而计算出海冰资源量,并利用Arc GIS对2012冬季至2013年春季渤海海冰资源量时空变化特征进行分析。研究发现:渤海海冰资源量年内变化大,2012冬季至2013年春季资源量为0.84~50.83亿m3。12月及3月海冰资源量小,1月和2月资源量储量丰富,峰值出现在1月中旬。渤海海冰资源量空间差异很大,资源量分布呈辽东湾>渤海湾>中间区>莱州湾。辽东湾海冰资源量占渤海海冰资源量的76.72%,是渤海海冰资源的主要贡献者。此外,海冰资源量受气温影响较大,气温变化会在2天后导致资源量的变化。
This article estimates the amount of sea ice resources in the Bohai Sea based on MODIS satellite remote sensing data. Using the object-oriented feature extraction method to extract the area of sea ice, using the model of albedo inversion to calculate the thickness of sea ice, and then calculating the amount of sea ice resources, and using Arc GIS to analyze the spatial and temporal changes of sea ice resources in the Bohai Sea from 2012 to the spring of 2013 . The results show that the amount of sea ice resources in the Bohai Sea varies greatly during the year, with 0.84 ~ 5.083 billion m 3 of spring water resources from winter to 2013. 3. The amount of sea ice resources in December and March is small, and reserves are abundant in January and February, with peak values In mid-January. There is great spatial variation of sea ice resources in the Bohai Sea, and the distribution of resources is Liaodong Bay> Bohai Bay> middle zone> Laizhou Bay. Liaodong Bay, the amount of sea ice resources accounted for 76.72% of the sea ice resources in the Bohai Sea, is the main contributor to the sea ice resources in the Bohai Sea. In addition, the amount of sea ice resources is greatly affected by the temperature, and the change of temperature will result in the change of resources after 2 days.