Author(s): Chengyu Liu; Wei Gu; Jinlong Chao; Lantao Li; Shuai Yuan; Yingjun Xu
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Keywords: No Keywords
Abstract: Bohai Sea is an inland sea of China. It is surrounded by land on the northern, western and southern sides, and the Yellow Sea stretches along the eastern side. Therefore, the sea-iceresource amount is influenced by the geographical environment of seacoast. The area of sea-ice in the Bohai Sea has been extracted by using the zonal threshold method and the remote sensing images obtained by National Oceanic and Atmospheric Administration (NOAA) satellites in the winter of 2009–2010. After that, the sea-ice thickness has been also estimated by sea-ice retrieved model based on the shortwave radiation theory. The map of the sea-ice resource amount distribution in the Bohai Sea of different times in the winter of 2009–2010 has been obtained finally. According to the geographical distribution of Bohai Sea and the geographical environment of seacoast, the temporal-spatial characteristics of sea-ice-resource amount of Bohai Sea have been analyzed by using Geographical Information System (GIS) technology. The results show that there are two peak values of the sea-ice amount of Bohai Sea in the winter of 2009–2010. The sea-ice amount of Liaodong Bay is the largest, and the percentage is about 82.81%. Bohai Bay is the second, and Laizhou Bay is the last. The sea-ice amount is decreasing rapidly when the distance offshore increases. The relationship between them is basically exponential. The percentage of the sea-ice amount at 0–10 km distance is over than 40%, and the percentage of the sea-ice amount at 100–110 km distance is less than 0.03%.
Year: 2012