利用NCEP/NCAR的1950—1998年海表温度场和1958—1997年海表风场再分析资料,采用相关、合成等分析方法,研究了黑潮区域SSTA(sea surface temperature anomaly)与太平洋风场的关系。结果表明:从SSTA滞后风场3月起,与其关系密切的经向风...利用NCEP/NCAR的1950—1998年海表温度场和1958—1997年海表风场再分析资料,采用相关、合成等分析方法,研究了黑潮区域SSTA(sea surface temperature anomaly)与太平洋风场的关系。结果表明:从SSTA滞后风场3月起,与其关系密切的经向风关键区位于赤道西太平洋(140~160°E,5°S^5°N),纬向风关键区位于赤道中太平洋(160°E^150°W,5°S^5°N),两者对SSTA的影响均可持续6月左右;纬向风关键区的强度和范围均大于经向风。进一步研究表明,黑潮SS-TA与ENSO事件有着密切的联系:E l N ino(La N ina)事件当年11月—次年12月期间黑潮海温多为正(负)异常。展开更多
By using the monthly average dataset of NCEP/NCAR reanalysis and the monthly average ocean temperature data of NOAA satellite center,we analyzed and probed into the relationship between Siberian high anomaly and SSTA,...By using the monthly average dataset of NCEP/NCAR reanalysis and the monthly average ocean temperature data of NOAA satellite center,we analyzed and probed into the relationship between Siberian high anomaly and SSTA,and found that the sea area anomaly is a bigger area,which have greater effect on the variation of Siberian high.The results indicated that there was a wonderful contemporaneously correlation between the area and intensity index of Siberian high and ocean temperature.The correlation type of the synchronous correlative areas between the central intensity index of Siberian high and ocean temperature have structural similarities with the correlative field's structure of area index,but the positive correlative regions expanded,and the intensity of negative correlative regions weakened significantly.The correlation among the area index of Siberian high and the central intensity index,as well as the ocean temperature anomaly of the North Atlantic during spring,autumn and summer of the same year was remarkable.The area index and the central intensity index of Siberian high anomaly have obvious correlation with the ocean temperature anomaly of Southwest Atlantic Ocean during spring,summer and autumn,however,they have apparent seasonal differences with the prominent negative correlative areas of subtropical South Indian Ocean and tropical South Pacific Ocean as well as Southwest Atlantic Ocean.The correlative index of area anomaly is greater than those of intensity anomaly.Larger impact on the variability of Siberian high anomaly are the SSTA of subtropical South Indian Ocean,mid and high latitudes of North Pacific Ocean,North Atlantic,tropical South Pacific Ocean,Southwest Atlantic Ocean,etc.several areas.展开更多
文摘利用NCEP/NCAR的1950—1998年海表温度场和1958—1997年海表风场再分析资料,采用相关、合成等分析方法,研究了黑潮区域SSTA(sea surface temperature anomaly)与太平洋风场的关系。结果表明:从SSTA滞后风场3月起,与其关系密切的经向风关键区位于赤道西太平洋(140~160°E,5°S^5°N),纬向风关键区位于赤道中太平洋(160°E^150°W,5°S^5°N),两者对SSTA的影响均可持续6月左右;纬向风关键区的强度和范围均大于经向风。进一步研究表明,黑潮SS-TA与ENSO事件有着密切的联系:E l N ino(La N ina)事件当年11月—次年12月期间黑潮海温多为正(负)异常。
文摘By using the monthly average dataset of NCEP/NCAR reanalysis and the monthly average ocean temperature data of NOAA satellite center,we analyzed and probed into the relationship between Siberian high anomaly and SSTA,and found that the sea area anomaly is a bigger area,which have greater effect on the variation of Siberian high.The results indicated that there was a wonderful contemporaneously correlation between the area and intensity index of Siberian high and ocean temperature.The correlation type of the synchronous correlative areas between the central intensity index of Siberian high and ocean temperature have structural similarities with the correlative field's structure of area index,but the positive correlative regions expanded,and the intensity of negative correlative regions weakened significantly.The correlation among the area index of Siberian high and the central intensity index,as well as the ocean temperature anomaly of the North Atlantic during spring,autumn and summer of the same year was remarkable.The area index and the central intensity index of Siberian high anomaly have obvious correlation with the ocean temperature anomaly of Southwest Atlantic Ocean during spring,summer and autumn,however,they have apparent seasonal differences with the prominent negative correlative areas of subtropical South Indian Ocean and tropical South Pacific Ocean as well as Southwest Atlantic Ocean.The correlative index of area anomaly is greater than those of intensity anomaly.Larger impact on the variability of Siberian high anomaly are the SSTA of subtropical South Indian Ocean,mid and high latitudes of North Pacific Ocean,North Atlantic,tropical South Pacific Ocean,Southwest Atlantic Ocean,etc.several areas.
