Snow Size Distribution Parameterization for Midlatitude and Tropical Ice Clouds
Snow Size Distribution Parameterization for Midlatitude and Tropical Ice Clouds
复制标题
中纬度和热带冰云的雪尺寸分布参数化
DOI：
10.1175/2007jas2344.1
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发表时间：
2007
影响因子：
3.1
通讯作者：
A. Bansemer
中科院分区：
文献类型：
--
作者：
P. Field;A. Heymsfield;A. Bansemer
摘要许多涉及雪的微物理过程速率与雪粒子尺寸分布（PSD）的矩成正比，在这项研究中，提出了一个适用于中纬度和热带冰云的矩估计参数化。为此，分析了热带铁砧[热带降雨测量使命/Kwajelein实验（TRMM/KWAJEX）、热带铁砧和卷云层的卷云区域研究-佛罗里达地区卷云实验（CRYSTAL-FACE）]和中纬度层状云[第一次国际卫星云气候学项目研究实验（FIRE）、大气辐射测量计划（ARM）]的飞机雪PSD数据。对于一半的数据集，计算PSD的矩，并且当二阶矩（当颗粒质量与尺寸平方成比例时，与冰水含量成比例）和温度已知时，生成用于估计其他PSD矩的参数化。随后，参数化测试与另一半的数据集t…
Abstract Many microphysical process rates involving snow are proportional to moments of the snow particle size distribution (PSD), and in this study a moment estimation parameterization applicable to both midlatitude and tropical ice clouds is proposed. To this end aircraft snow PSD data were analyzed from tropical anvils [Tropical Rainfall Measuring Mission/Kwajelein Experiment (TRMM/KWAJEX), Cirrus Regional Study of Tropical Anvils and Cirrus Layers-Florida Area Cirrus Experiment (CRYSTAL-FACE)] and midlatitude stratiform cloud [First International Satellite Cloud Climatology Project Research Experiment (FIRE), Atmospheric Radiation Measurement Program (ARM)]. For half of the dataset, moments of the PSDs are computed and a parameterization is generated for estimating other PSD moments when the second moment (proportional to the ice water content when particle mass is proportional to size squared) and temperature are known. Subsequently the parameterization was tested with the other half of the dataset t...