OBSERVATION OF THE LIQUID WATER-CONTENT OF MELTING SNOWFLAKES WITH A NEW INSTRUMENT

被引：3

作者：

SASYO, Y

MORI, T

ONOZAKI, O

SAITO, T

机构：

[1] Research and Development Division, Suga Weathering Test Instrument Co., Ltd.

来源：

JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN | 1991年 / 69卷 / 01期

关键词：

D O I：

10.2151/jmsj1965.69.1_83

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

In order to measure the liquid water content of a melting snowflake, a new automatic instrument based on a filter paper technique has been developed and used for field observation of sleet. Analysis of the observational data indicated that the relationship between the liquid water content W and the mass of the snowflake m (mg) could be expressed as W = beta-m-alpha. alpha and beta range from 0.27 to 0.95 (0.53 in an average) and 0.07 to 0.51 (0.25 in an average), respectively. A simple model for the melting of snowflakes showed that alpha was a parameter depending on the fall velocity of the snowflake alone and parameter beta depends on the quantity of heat transferred from ambient air to the snowflake and the density of the ice skeleton in the melting snowflake as well as the fall velocity.

引用

页码：83 / 90

页数：8

共 6 条

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[2]

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[3]

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[4]

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[5]

Sasyo Y., Mori T., Onozaki O., Saito T., Tsutsui K., On the accuracy of the method for measuring the mass of precipitation particles by using a filterpaper, Tenki, 37, pp. 61-66, (1990)

[6]

Yuge T., Experiments on heat transfer from spheres including combined natural and forced convection, J. Heat Transfer, 82, pp. 214-220, (1960)

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