首页> 外文期刊>Journal of the Atmospheric Sciences >Ice in Clouds Experiment–Layer Clouds. Part II: Testing Characteristics of Heterogeneous Ice Formation in Lee Wave Clouds
【24h】

Ice in Clouds Experiment–Layer Clouds. Part II: Testing Characteristics of Heterogeneous Ice Formation in Lee Wave Clouds

机译:云中的冰实验-层云。第二部分:李波云中非均质冰形成的测试特征

获取原文
获取原文并翻译 | 示例

摘要

Heterogeneous ice nucleation is a source of uncertainty in models that represent ice clouds. The primary goal of the Ice in Clouds Experiment–Layer Clouds (ICE-L) field campaign was to determine if a link can be demonstrated between ice concentrations and the physical and chemical characteristics of the ambient aerosol. This study combines a 1D kinematic framework with lee wave cloud observations to infer ice nuclei (IN) concentrations that were compared to IN observations from the same flights. About 30 cloud penetrations from six flights were modeled. The temperature range of the observations was -16°to -32℃. Of the three simplified ice nucleation representations tested (deposition, evaporation freezing, and condensation/ immersion droplet freezing), condensation/immersion freezing reproduced the lee wave cloud observations best. IN concentrations derived from the modeling ranged from 0.1 to 13 L~(-1) compared to 0.4 to 6 L~(-1) from an IN counter. A better correlation was found between temperature and the ratio of IN concentration to the concentration of large aerosol (.500 nm) than between IN concentration and the large aerosol concentration or temperature alone.
机译:在代表冰云的模型中,非均质的冰核化是不确定性的来源。云中冰实验-层云(ICE-L)野外活动的主要目标是确定是否可以证明冰浓度与周围气溶胶的物理和化学特性之间存在联系。这项研究将一维运动学框架与李风波云观测相结合,以推断出冰核(IN)浓度,并将其与来自同一飞行的IN观测值进行了比较。对来自六个航班的大约30个云渗透进行了建模。观测温度范围为-16°至-32℃。在测试的三个简化的冰核形化表示形式(沉积,蒸发冷冻和凝结/浸入式液滴冻结)中,凝结/浸入式冻结最重现了李波云的观测结果。通过建模得出的IN浓度范围为0.1到13 L〜(-1),而来自IN计数器的浓度为0.4到6 L〜(-1)。发现温度与IN浓度与大雾剂浓度(.500 nm)的比率之间的相关性比IN浓度与大雾剂浓度或单独的温度之间的相关性更好。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号