Analysis and Prediction of Tropical Waves and Their Interactions

该项目将研究热带大气中波浪的结构、行为和相互作用，以及它们对对流和降雨的影响。 更好地理解波的激发和管理机制，可以产生更准确的水文气候变化的预测。 Frank博士（宾夕法尼亚州立大学）将对卫星数据和全球再分析领域中存在的热带波进行详细分析。 他将专注于波浪与地形的相互作用以及季节性和地带性变化的气候基本状态，以了解降雨变化的产生。 Frank博士将对卫星获得的长达10年的可降水量和向外长波辐射数据集进行全面分析，这些数据集提供了热带地区行星尺度波的独特指纹。 还将使用统计技术研究5-50天时间尺度上波浪活动的可预测性。 诊断研究将促进对热带波活动的结构和机制的理解，并导致水文气候预测的改进。

The project will investigate the structure, behavior, and interactions of the waves in the tropical atmosphere, and their impact on convection and rainfall. An improved understanding of wave excitation and governing mechanisms can produce more accurate predictions of hydroclimate variability. Dr. Frank (Penn State) will undertake a detailed analysis of tropical waves present in satellite data and global reanalysis fields. He will focus on wave interactions with orography and the seasonally and zonally varying climatological basic state, in an effort to understand the generation of rainfall variability. Dr. Frank will perform a comprehensive analysis of the satellite-derived, 10-year long precipitable water and outgoing longwave radiation data sets, which provide unique fingerprints of planetary-scale waves in the tropics. Predictability of wave activity on the 5-50 day timescale will also be investigated, using statistical techniques. The diagnostic research will advance understanding of the structure and mechanisms of tropical wave activity, and lead to improvements in hydroclimate predictions.