渤、黄海北部海冰年代时空变化特征分析  

The characteristic of the spatio-temporal transformation of the sea-ice in northern part of the BO-HAI sea and the Yellow sea

作　　者：王相玉[1] 张惠滋[1] 严素[1] 温连杰[1] 郭可彩[1] 袁本坤[1] 商杰[1] 

机构地区：[1]国家海洋局北海预报中心,青岛266003

出　　处：《海洋预报》2007年第2期26-32,共7页Marine Forecasts

摘　　要：本文取上世纪后50年至2003年度冬季渤海地区气温作为与渤海冬季冰情有关的气候指标。分析得出,渤海地区冬季气温随着年代呈上升趋势,特别是80年代中期至本世纪初尤为明显。受其影响,渤海冬季的冰情时空分布状况发生了较大变化。其特点是:初冰日较多年平均值推后、终冰日较多年平均值提前,冰期较多年平均值偏短,冰厚较多年平均值偏薄,结冰范围(沿岸固定冰宽度和浮冰外缘线)较多年平均值偏小,甚至有些海区已多年未曾见到海冰了。By using the winter air temperature data of the Bo-hai sea area from 1951 to 2003 for the climate guideline of the ice condition, Then seek out that the winter air temperature of the Bo-hai sea area goes up year after year, especially from 1980s to this early century. It result in biggish movement of the spatio-temporal transformation of the Bo-hai sea ice. The characteristic is that, the early ice day delays than the long-term mean, the end ice day is ahead of the long-term mean, the ice age is shorter, the thickness of the ice is thinner, the range of the ice is smaller. Some sea area does not appear sea-ice for several years.

关 键 词：海冰年代 时空变化 统计分析 

分 类 号：P731[天文地球—海洋科学]