青藏高原中部唐古拉山口邻近地区气候特征  

The Climatic Feature at the Tanggula Mountain Pass on the Centre of Tibetan Plateau

作　　者：张寅生[1] 蒲健辰[1] 

机构地区：[1]中国科学院兰州冰川冻土研究所

出　　处：《冰川冻土》1994年第1期41-48,共8页Journal of Glaciology and Geocryology

摘　　要：本文利用青藏高原中部的唐古拉山口附近连续的气温、气压、湿度、风速、风向及太阳辐射资料，初步分析了该区域年内气候变化和日变化等特征：年平均气温为－６．０℃，最冷月为１２月，最热月为７月，与高原西部比较，具有升湿快、降温慢的变化特点；降水多集中于６－８月，但相对湿度的年际变化无规律可循，湿度变化与热力作用关系密切；年平均风速为３．６ｍ／ｓ，且冬季风强、夏季风弱，上午风弱、午后风强，１月午后风速可达１０．０ｍ／ｓ；太阳辐射年总量为７１７２．３ＭＪ，５月最大，１月最小，反射率１２月最大，７月最小。According to the analysing the climatic datas on 105， station near Tanggula MountainPass in centre of Tibetan Plateau, shows its annal veriation and diurnal veriation of climaticfators． Some preliminary knowledge on climatic feature of this areas were got： The averageannal temperature is -6．0℃，the minimum temperature occurs in December and the maxi-mum temperature in July， comparing with western part of Plateau， there are climatic featurein observated areas like temperature increasing fastly and decreasing slowly． The preciptationmainly take place from June to August，but the relative humidity changes out oflaw， humidi-ty changes related well with thermodynamic reaction. Meanly annal windspeed is 3．6 m ／s，there is strong wind in winter and weak wind in summer， also strong wind afternoon andweak wind in morning， the wind speed at afternoon in January could being as 100 m ／ s．Theannal total global radiation should be 7 172．3 MJ， the maximum albedo were happen in De-cember and minimum albedo in July.

关 键 词：青藏高原 气候特征 唐古拉山 

分 类 号：P463.1[天文地球—大气科学及气象学]