Theories and Methods for Diagnoses of Moist Frontal Circulations

虽然控制一般天气模式的许多因素已经相当清楚，但控制局部严重事件的物理现象，如特大降雪或山洪暴发，在某种程度上仍然是一个谜。这些被气象学家称为中尺度现象的现象，目前是气象界密集调查的主题。首席调查员将对两种中尺度现象(锋生强迫和湿对称稳定)进行理论和数值模拟研究。在某些情况下，这些特征可能是形成常常在气象锋面附近形成的强烈雨/雪带的原因。这项研究的结果应该有助于更好地从根本上理解带状降水结构的物理原理，并最终改进短期降水预报。

While many of the factors that govern general weather patterns are fairly well understood, the physical phenomena that control localized severe events, such as extremely heavy snowfalls or flash floods, are still somewhat of a mystery. These mesoscale phenomena, as they are called by meteorologist, currently are the subject of intense investigations within the meteorological community. The Principal Investigator will undertake a theoretical and numerical modeling investigation of two mesoscale phenomena (frontogenetical forcing and moist symmetric stability). These features may be responsible in some cases for the formation of intense rain/snow bands that often form in the vicinity of meteorological fronts. Results of this study should lead to better fundamental understanding of the physics of banded precipitation structures and eventually to improved short range precipitation predictions.//