摘要
用遥感方法估算了 1 999年 2 0 0 0年冬季辽东湾盛冰期 5个时段的海冰资源量 ,海冰厚度的估算依据冰厚与海冰反照率之间的指数关系 ,海冰面积则由NOAA AVHRR第一通道的数据获得。为把握不同海区的海冰资源量分布状况 ,按海湾地形走向和离岸距离远近等将辽东湾分成东、西岸海岸线走向的中线 ,将辽东湾分成东、西岸两个一级区 ;在各一级区内以东西 5 0km为间距 ,划分出东岸 5个、西岸 6个二级区 ;在各二级区内以离岸距离 1 0km为间距 ,再划分出 5个三级区。在此基础上 ,分别统计了不同时段、不同区域的海冰资源量 ,得出如下结论 :①常冰年辽东湾盛冰期海冰在自然状态下的最大储量为 3 0× 1 0 8m3;②随着冰期的发展 ,辽东湾盛冰期海冰资源量高值中心从湾底部的中心海区移向辽东湾东岸 ;③辽东湾东岸的营口至熊岳一带、西岸的兴城一带的海冰资源量占辽东湾海冰资源总量的 3 0 %～ 5 0 % ,是建立海冰开采基地的理想地点 ;④辽东湾东岸海冰资源量随着离岸距离的增加而显著减少 。
The amount of sea ice resources of Liaodong Gulf at five winter periods of 1999/2000 was estimated using remote sensing. The thickness of sea ice was estimated based on the exponent relationship between thickness of sea ice and reflectivity of sea ice, and the area of sea ice was obtained by NOAA/AVHRR data at channel 1. To understand the distribution of sea ice resources, Liaodong Gulf was divided into 11 regions and each region was further subdivided into 5 plots in terms of the topographic trend and the distance from coust,and the amount of sea ice resources was statistically counted plot by plot in different period.The conclusions are as follows:1)Maximum deposit of ice in a normal ice year during the period of grand ice with no artificial disruption of the environment is 30×10 8m 3 ; 2)Center of maximum sea ice formation moved from the center of the sea to the eastern coast with respect to the development of ice period; 3) The large amount of sea ice available distributed in the eastern coast of Liaodong Gulf as regions between Ying Kou and Xong Yue, and the western coast region as Xing-Cheng, whose amount made up 30%～50% of the total amount of sea ice available within Liao dong Gulf. Therefore, these regions are the best positions to set up as exploited bases; 4)With respect to the increasing distance from the coast, the amount of sea ice resources in the eastern coast decreased, and the amount of sea ice resources in the western coast increased by a small amount.
出处
《资源科学》
CSSCI
CSCD
北大核心
2003年第3期2-8,共7页
Resources Science
基金
科技部"渤海海冰作为淡水资源的可行性研究"项目
教育部科研重点项目 (编号 :0 2 0 10 )
