Climate Variations and Trends

华盛顿大学约翰·M·华莱士的ATM-9805886摘要标题：气候变化和趋势这项拨款支持主要基于观测数据分析的天气和气候的持续研究。PI将(I)分析地面气温和降水的年代际变化，以此作为确定人类活动是否影响气候以及影响程度的手段；(Ii)研究赤道非绝热加热场的赤道不对称在沿赤道建立纬向海平面气压梯度方面的作用，以确定类似季风的越赤道气流是否可以调解南方涛动的极性逆转；(Iii)根据卫星图像记录陆地表面植被的变异性，并将这种变异性与降雨量和日最高/分钟温度等气候变量联系起来；(Iv)在特定天气预报情况下确定环流的可预测性；以及(V)开发和应用用于天气和气候研究的统计方法。这项研究之所以重要，是因为它寻求增加对重要气候和天气过程的了解，从而可能导致对这些现象的更好预测。

Abstract ATM-9805886 Wallace, John M. University of Washington Title: Climate Variations and Trends This grant supports continued studies of weather and climate based largely on analyses of observational data. The PI will (i) analyze interdecadal variations in surface air temperature and precipitation as a means of determining whether and to what extent human activities are influencing climate; (ii) study the role of equatorial asymmetries in the diabatic heating fields in setting up zonal sea-level pressure gradients along the equator in order to determine whether monsoon-like cross-equatorial flows could mediate polarity reversals of the Southern Oscillation; (iii) document the variability of land surface vegetation based on satellite imagery and relate the variability to climatic variables such as rainfall and daily max/min temperatures; (iv) determine the predictability of the circulation in specific weather forecast situations; and (v) develop and apply statistical methods for use in weather and climate research. This research is important because it seeks to increase understanding of important climate and weather processes and hence may lead to better predictions of these phenomena.