Analysis of Aircraft Radiometric and Cloud Physics Data obtained during the FIRE-IFO Cirrus Experiment

本研究项目旨在研究辐射加热 率卷云，以评估这些不确定性 由于我们目前对卷云缺乏了解， 特性，并制定一种参数化的手段， 这些辐射加热相互作用， 气候模型中的卷云 使用的方法是： (i)分析现有的辐射和微物理数据， 在卷云FIRE-IFO期间获得，（ii）开发模型 卷云的辐射传输 （iii）模拟飞机观测; 这种转移对冰晶形状方面的敏感性， （iv）将颗粒的取向、颗粒浓度和尺寸进行比较， 理论和观测到的宽带通量和加热速率，以及 (v)使用比较沿着与其他数据，以制定和简单 云加热模型 这项工作很重要，因为它将导致改善 气候模式中卷云的参数化。

This research project aims to study the radiative heating rates of cirrus clouds, to assess the uncertainty of these estimates due to our present lack of understanding of cirrus properties and to develop a means for the parameterization of these radiative heating interactions for use in representing cirrus clouds in climate models. The methods to be used is: (i) to analyze the available radiative and microphysical data obtained during the cirrus FIRE-IFO period, (ii) develop models of the radiative transfer through cirrus clouds capable of simulating the aircraft observations, (iii) assess the sensitivity of this transfer to aspects of ice crystal shape, orientation, particle concentration and size, (iv) compare the theoretical and observed broadband fluxes and heating rates, and (v) use comparisons along with other data to formulate and simple model of cloud heating. This work is important because it will lead to improved parameterization of cirrus clouds in climate models.