报告人：　  Dr. Zeng-Zhen HU

所在单位：Climate Prediction Center, NCEP/NWS/NOAA，USA

报告题目：Persistent Atmospheric and Oceanic Anomalies in the North Atlantic from Summer 2009 to Summer 2010

时间：　　　  6月20日（星期一）15:00
地点：　　　  大气所40号楼215会议室

Abstract：
In this work, the authors analyze the air-sea interaction processes associated with the persistent atmospheric and oceanic anomalies in the North Atlantic during summer 2009–summer 2010 with record breaking positive sea surface temperature (SST) anomaly (SSTA) in the hurricane Main Development Region (MDR) in the spring and summer of 2010. Contributions to the anomalies from El Ni？o/Southern Oscillation (ENSO), the North Atlantic Oscillation (NAO), and long-term trend are identified. The warming in the tropical North Atlantic during summer 2009–summer 2010 represented a typical response to ENSO, preconditioned and amplified by the influence of a strong and persistent negative phase of the NAO. The long-term trends enhanced the warming in the high and low latitudes and weakened the cooling in the middle latitudes.
The combination of the ENSO, NAO, and long-term trend resulted in the record-breaking positive SSTA in the MDR in the boreal spring and summer of 2010. Based on the statistical relationship, the SSTA pattern in the North Atlantic was reasonably well predicted by using preceding ENSO and NAO as predictors.
Reference: Hu Z Z, A Kumar, B H Huang, et al. 2011: J. Climate, doi:10.1175/2011JCLI4213.1 (In press)