摘要
通过对全球各大洋季度海温距平的分析，发现全球近百年海温变化有４大特点．第一，从１８６０年至１９３０年，这一阶段几乎全是温度负距平，在此期间的最大降温在１９００年至１９１０年之间，其值约为－０．４℃；第二，从本世纪１０年代到６０年代，温度回升，且４０年代的升温幅度普遍强于６０年代；第三，７０年代前后为本世纪的第二次明显降温，但其强度不如本世纪初那次大，且持续时间也短．直到目前为止，全球海温基本上为持续上升阶段，第四，在全球范围内，各大洋的海温在数十年时间尺度中表现出非常好的同步性．
Analyses of seasonal anomalies of sea-surface temperatures for the oceans across the globe have reveled four major features of variation over the past hundred year period. First, the period 1860 through 1930 was marked by almost monotonous negative anomalies of SST, with the maximm temperature drop (-0. 4℃) taking place in 1900-1910. Second, SST rose during the period from the 1910's to 1960's and the amplitude of temperature was was g6nerally larger in the 1940's than in the 1960's. Third, the second significant fall in SST in this century occurred just at 1970's with weaker intensity and shorter duration than the first fall. Up till now, the global SST has been generally in a stage of Persistent rise. FOurth, in a global rang6, the SST for all of the oceans performed perfeCt simultaneity at stales of dozens of years.
出处
《热带气象学报》
CSCD
1996年第1期85-90,共6页
Journal of Tropical Meteorology
关键词
全球
海温
演变
海洋气象
Globe Past hundred year SST Evolution features
