Linear trends in salinity for the World Ocean, 1955-1998
Linear trends in salinity for the World Ocean, 1955-1998
复制标题
DOI：
10.1029/2004gl021791
复制
发表时间：
2005-01-06
影响因子：
5.2
通讯作者：
Garcia, HE
中科院分区：
文献类型：
--
作者：
Boyer, TP;Levitus, S;Garcia, HE
[ 1]使用来自世界海洋数据库2001（WOD 01）的质量控制海洋剖面盐度测量值，计算从1955 - 1959年到1994 - 1998年世界海洋和大西洋，太平洋和印度洋盆地从表面到3000米深度的纬向平均盐度异常的线性趋势。每个盆地都表现出大规模的、连贯的趋势。除了南太平洋的副热带地区外，太平洋的大部分地区都在清新。大西洋在副极地环流中表现出深度的淡化，而在热带和亚热带则表现出更浅、更强烈的盐度增加。印度洋在150米上层的所有纬度都变得更加咸，在250 - 1000米层中，在南纬40度和赤道之间的次表层都变得清新。威德尔海和罗斯海都有淡水。
[ 1] Quality controlled oceanographic profile salinity measurements from the World Ocean Database 2001 ( WOD01) were used to calculate linear trends of zonally averaged salinity anomalies for running five year periods from 1955 - 1959 through 1994 - 1998 for the World Ocean and the Atlantic, Pacific, and Indian Ocean basins from the surface to 3000 meters depth. Each basin exhibits large-scale, coherent trends. Most of the Pacific is freshening with the exception of the subtropical South Pacific. The Atlantic exhibits a deep freshening in the subpolar gyre and a shallower, more intense increase in salinity in the tropics and subtropics. The Indian Ocean is becoming more saline at all latitudes in the upper 150 meter layer, with a subsurface freshening between 40 degrees S and the equator in the 250 - 1000 meter layer. There is freshening in both the Weddell and Ross Seas.