论文部分内容阅读
用Reynolds＆Smith重构的1950-1998年月平均SST资料分析了印度洋-太平洋海表温度距平SSTA的持续性特征。结果表明:SSTA的持续性在空间上分布不均匀,可将有明显差异的SSTA持续性特征的海区分为3类:全年各月持续性好的区域,主要包括热带中东太平洋马蹄形海域、赤道中东印度洋、热带西太平洋,持续时间一般在10个月以上;全年各月持续性差的区域,主要包括西北太平洋、东亚沿海和东南太平洋,持续时间一般为3个月左右;各月持续性有季节性变化的区域,主要包括赤道东太平洋,南海。SSTA持续性的整体空间分布存在冬夏两种主要分布型,夏季型SSTA的持续性要比冬季好。冬夏间SSTA持续性最明显的差异出现在赤道东太平洋和东亚沿海、南海区域,由冬季转入夏季时,赤道东太平洋SSTA的持续性由差变好,东亚沿海、南海地区的情况则与之相反。
Using the monthly average SST data reconstructed by Reynolds & Smith from 1950 to 1998, the persistent features of SSTA over the Indian Ocean-Pacific sea surface temperature anomalies were analyzed. The results show that the spatial distribution of SSTA is not uniform, and the sea areas with obvious SSTA persistent features can be divided into three categories: the areas with good persistence throughout the year, including the horseshoe-shaped waters in the tropical Middle East and the Pacific, the equator The Middle East and Indian Ocean, the tropical West Pacific, the duration is generally 10 months or more; throughout the year the regions with poor persistence, including the Northwest Pacific, East Asian coast and the South East Pacific, the duration is generally about 3 months; Seasonal changes in the region, including the equatorial East Pacific, South China Sea. The overall spatial distribution of SSTA has two main distribution patterns in winter and summer. The sustainability of SSTA in summer is better than that in winter. The most obvious difference in SSTA persistence between winter and summer appeared in the equatorial eastern and eastern coasts of the South China Sea. From the winter to the summer, the persistent difference of SSTA in the eastern equatorial Pacific changed from poor to good, while in East Asian coastal and South China Sea regions, in contrast.