Changes in Atlantic Water characteristics in the south-eastern Mediterranean Sea as a result of natural and anthropogenic activities
Changes in Atlantic Water characteristics in the south-eastern Mediterranean Sea as a result of natural and anthropogenic activities
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自然和人为活动导致地中海东南部大西洋水体特征的变化
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
A. Radwan
中科院分区：
文献类型：
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作者：
M. Said;M. Gerges;Ibrahim A. Maiyza;Maged M. A. Hussein;A. Radwan
研究了1959-2008年期间沿地中海东南部埃及海岸向东流动的大西洋水(AW)特征的变化。
在垂直方向上，冬季只有1个水团出现在200米以上，而夏季则有3个明显的水团。来自大西洋的地下水团占据了50-150m的表层，以38.60-38.80PSU的低盐度为特征，自西向东移动，分布在27.5t-28.5mσt的密度范围内。
在过去25年(1983年至2008年)，温度和盐度显示出温度和盐度的上升趋势，地中海表层水的温度和盐度分别达到0.85°C十年−1和0.073 PSU 12月−1。对于大西洋水，温度的趋势是0.28dec−1，盐度的趋势是0.014−dec 1。
The paper investigates the changes in the characteristics of Atlantic Water (AW) flowing eastwards along the Egyptian coast in the south-eastern Mediterranean during the period 1959–2008.
Vertically, only one water mass could be observed in winter in the upper 200 m layer, whereas in summer, there were three distinct water masses. The subsurface water mass, of Atlantic origin, occupying the 50–150 m layer and characterized by low salinities from < 38.60 to 38.80 PSU, moves throughout the study area from west to east and spreads over a range of density between 27.5 and 28.5 σt.
Temperature and salinity have indicated increasing trends for both temperature and salinity during the last 25 years (1983–2008), reaching 0.85°C decade−1 and 0.073 PSU dec−1, respectively, for the Mediterranean surface waters. For the Atlantic water, the trends were 0.28°C dec−1 for temperature and 0.014 PSU dec−1 for salinity.