Problems Connected with the Condensation and Precipitation Processes in the Atmosphere
Problems Connected with the Condensation and Precipitation Processes in the Atmosphere
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DOI：
10.1175/1520-0477-19.4.152
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发表时间：
1938-04
影响因子：
8
通讯作者：
H. G. Houghton
中科院分区：
文献类型：
--
作者：
H. G. Houghton
虽然凝结和沉淀的物理学已被许多有能力的研究者研究过，但仍有许多不确定之处。在对已经提出的几种理论进行充分的检验之前，需要对凝结和沉淀产物的物理特性进行更完整和更精确的测量。在过去的八年中，麻省理工学院的圆山研究站进行了一项关于光通过雾的传输、雾的局部消散和雾的物理性质的测定的研究计划。这项工作的成果之一是发展了新的和更精确的方法来测量雾和云的重要物理特性。现在计划用这个装置来收集数据，希望这些数据将有助于澄清我们关于凝结和沉淀的基本物理过程的想法。也许还需要研制新的测量仪器，并在实验室里研究某些重要的现象。我们相信，对我们关于凝结和沉淀的知识现状的回顾，将最有助于指出必须解决的问题。尽管Köhler 2、Bergeron 3、Bennett 4和Findeisen 1已经提出了类似的讨论，但现在有了更多的信息，这使得此时需要对这个问题进行新的研究。
Although the physics of conden sation and precipitation have been studied by many able in vestigators there still remain a num ber of points of uncertainty. More complete and accurate measurements of the physical characteristics of the products of condensation and precipi tation are required before the several theories which have been proposed can be adequately examined. During the past eight years a research program on the transmission of light through fog, the local dissipation of fog and the determination of the physical properties of fog has been carried on at the Round Hill Research Station of the Massachusetts Institute of Tech nology1. One of the results of this work has been the development of new and more accurate methods for the measurement of the significant physi cal properties of fog and clouds. It is now planned to use this apparatus for the collection of data which it is hoped will serve to clarify our ideas concerning the underlying physical processes of condensation and preci pitation. It will probably be neces sary also to develop new apparatus for certain measurements and to study some of the important phenomena in the laboratory.It is believed that a review of the present state of our knowledge con cerning condensation and precipita tion will best serve to point out the problems which must be attacked. Although somewhat similar discus sions have been presented by Köhler2, Bergeron3, Bennett4, and Findeisen1, additional information is now availa ble which makes a new examination of the problem desirable at this time.