Causes of Precipitation Variability over Tropical Continents

这项研究建议研究南美洲和非洲夏季降水的变化，包括从事件到年际的时间尺度。将审查来自卫星和地面的观测。用于确定和理解影响热带降水的各种物理机制的模拟工具将是线性模式、干非线性模式、理想和现实的大气环流模式和中尺度模式。NCEP和ECMWF的再分析以及CSM模型的输出也将被分析。这项工作很重要，因为它将增进对非洲和南美洲气候变化的了解，这可能会产生重要的社会影响。

AbstractATM-9815419Cook, KerryCornell UniversityTitle: Causes of Precipitation Variability over Tropical ContinentsThe study proposes to examine variability of summer precipitation over South America and Africa, on time scales including from the event to the interannual. Satellite-derived and ground-based observations will be examined. Modeling tools used to identify and understand various physical mechanisms influencing tropical precipitation will be a linear model, a dry non-linear model, idealized and realistic general circulation models and a meso-scale model. NCEP and ECMWF reanalyzes as well as CSM model output will also be analyzed. The work is important because it will enhance understanding regarding climate variability over Africa and South America and this could have important societal impacts.