OROGRAPHIC ENHANCEMENT OF SNOWFALL

被引：31

作者：

DORE, AJ ^{[1
]}

CHOULARTON, TW ^{[1
]}

FOWLER, D ^{[1
]}

CROSSLEY, A ^{[1
]}

机构：

[1] INST TERR ECOL,PENICUIK EH26 0QB,MIDLOTHIAN,SCOTLAND

来源：

ENVIRONMENTAL POLLUTION | 1992年 / 75卷 / 02期

基金：

英国自然环境研究理事会;

关键词：

D O I：

10.1016/0269-7491(92)90037-B

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Field studies have been conducted at a hill site in Scotland to measure the variation with altitude of wet deposition by snowfall. The results showed that, due to wind drift effects, snowflakes were captured very inefficiently by snow collectors. It was therefore not possible to measure an increase in precipitation with altitude. The average concentrations of principal ions dissolved in the snow water were calculated over a two-month period. The results showed that the concentrations increased by factors of between 1.4 and 1.9 with an altitude rise of 400 m. A model of the orographic enhancement of snowfall by the seeder-feeder effect showed that the orographic enhancements of precipitation and pollutant deposition were significantly greater for snowfall than for rainfall. The wind drift of snow crystals and the evaporation of precipitation in dry valley air were important in determining the patterns of deposition.

引用

页码：175 / 179

页数：5

共 8 条

[1]

BERGERON T, 1965, MAY S P INT C CLOUD, P96

[2] A MODEL OF THE FEEDER SEEDER MECHANISM OF OROGRAPHIC RAIN INCLUDING STRATIFICATION AND WIND-DRIFT EFFECTS [J].