Atmospheric Chemistry and Physics Discussions Interactive comment on “ Aircraft measurements of microphysical properties of subvisible cirrus in the tropical tropopause layer ”
Atmospheric Chemistry and Physics Discussions Interactive comment on “ Aircraft measurements of microphysical properties of subvisible cirrus in the tropical tropopause layer ”
复制标题
大气化学和物理讨论 对“热带对流层顶层亚可见卷云微物理特性的飞机测量”的互动评论
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
R. Lawson
中科院分区：
文献类型：
--
作者：
R. Lawson
本文报道了用光学粒子谱仪对热带薄卷云的测量结果。其中之一，2D-S，是一种已经使用了35年以上的技术的适度改进版本。从这次提交的资料中得到两条信息：1）在1800公里的样品中发现了18个大于100 μ m的粒子; 2）测量了准球形粒子。大晶体和准球形形状的主要相关性在于，这些与33年前在相似纬度和温度下从同一类型飞机上测量的结果形成鲜明对比。在之前的测量中，他们没有发现大于50微米的颗粒，晶体习性是三角形，而不是准球形。可以得出的结论是，由于缺乏测量和仪器的差异，
This paper reports measurements made in tropical thin cirrus using optical particle spectrometers. One of these, a 2D-S, is an modestly improved version of technology that has been used for more than 35 years. Two pieces of information come out of this submission: 1) 18 particles larger than 100 um were found in 1800 km worth of samples and 2) quasi-spherical particles were measured. The primary relevance of the large crystals and quasi-spherical shapes is that these contrast with what was measured from the same type of aircraft, at similar latitudes and temperatures, 33 years previously. In the previous measurements they didn’t find particles larger than about 50 um and the crystal habits were trigonal, not quasi-spherical. It could be concluded that, given the dearth of measurements and the difference in the instrumentation, there