COLLABORATIVE RESEARCH: Dynamic-Radiative Feedbacks in Extratropical Energy and Moisture Cycles

大气涡动动力学与其他物理过程(辐射、对流、地表通量等)之间的相互作用在维持对流层温带外温度和湿度分布的能量和水循环中发挥重要作用。因此，这些相互作用在短期气候变化中发挥着重要作用，但我们对它们如何发挥作用的理解还不完全。布兰斯科姆博士和他的合作者将进行一系列数值实验，旨在研究温带大气中瞬变涡旋、水分、地表通量和辐射之间反馈的演变，温度和水分分布反过来又由涡流维持。审议中的时间尺度从几天到几个月不等。通过这项研究，PI建立在他们对斜压涡旋之间相互作用的研究的一系列结果的基础上。在上一次拨款中，他们研究了湿度的影响。有了这个奖项，他们将探索辐射效应。这项研究是目前更好地了解并最终预测短期气候的努力的重要组成部分。这笔赠款包括两个奖项，颁发给不同的机构进行合作。另一个奖项是授予爱荷华州立大学古托斯基博士的ATM-9123552。

Interactions between atmospheric eddy dynamics and other physical processes (radiation, convection, surface fluxes, etc.) play a significant role in the energy and water cycles that maintain the extratropical temperature and moisture distributions of the troposphere. These interactions thus play a significant role in short-term climate variability, but our understanding of how they work is incomplete. Dr. Branscome and his collaborators will conduct a series of numerical experiments designed to study the evolution of feedbacks in the extratropical atmosphere among transient eddies, moisture, surface fluxes, and radiation through the temperature and moisture distributions which are, in turn, maintained by the eddies. The time scales under consideration are periods of several days to several months. With this study, the PIs are building on their series of results from studies of the interactions between baroclinic eddies. Under the last grant, they looked at the effect of moisture. With this award, they will explore the radiative effect. This research is an important part of current efforts to better understand, and eventually predict, short-term climate. This grant consists of two awards which are being made to separate institutions for a collaborative effort. The other award is ATM-9123552 to Dr. Gutowski of Iowa State University.