Observed oceanic feedback to the atmosphere over the Kuroshio Extension during spring time and its possible mechanism

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2008,（12）
• 页码范围: 1905-1912
• 页数: 8页
• 语种: 英文
• DOI: 10.1007/s11434-008-0138-3

摘要

High-resolution satellite measurements are used to study the air-sea interaction over the Kuroshio Extension (KE) region during spring time. There are two oceanic fronts in the KE region off the east coast of Japan. These fronts are generally associated with strong ocean currents, which may display unstable meander, resulting in remarkable warm sea surface temperature (SST) ridges and cold SST troughs. Analyses of these satellite observations reveal a significantly positive correlation between sea surface wind speed and its underlying SST along these fronts. This positive SST-wind correlation be-comes even more significant when strong meanders occur along the fronts. This positive SST-wind correlation indicates an ocean-to-atmosphere feedback over the KE region during spring time. A high-resolution regional atmospheric model is used to investigate the atmospheric response to SST changes along the two fronts.