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Position: Home > Articles > Study on Selection of Angstrom-Prescott Indexes of Lhasa in Tibet Journal of Anhui Agricultural Sciences 2009,37 (12) 17-21

西藏拉萨ngstrm-Prescott系数选取研究

作  者:
李为虎;杨永红;达瓦
单  位:
西藏农牧学院
关键词:
拉萨;Angstrom-Prescott系数;选取
摘  要:
介绍了总辐射气候学的计算公式及几种计算方法,分析比较了青藏高原采用晴天(可能)总辐射、天文总辐射和理想大气总辐射为起始数据的太阳总辐射的计算方法和结果。根据西藏高原区拉萨气象站1971~1980年10年实测月总辐射Q、月平均日照时数n和月平均日照百分率s资料,重点比较了拉萨ngstr m-Prescott系数a、b选取方法及结果。结果表明,拉萨全年a=0.27、b=0.55,冬半年(10~次年3月)a=0.28、b=0.55;夏半年(4~9月)a=0.35、b=0.41。
译  名:
Study on Selection of Angstrom-Prescott Indexes of Lhasa in Tibet
作  者:
LI Wei-hu et al(Tibet College of Agriculture and Animal Husbandry,Linzhi,Tibet 860000)
关键词:
Lhasa;?ngstrm-Prescott indexes;Selection
摘  要:
Introduced calculation formula and several calculation methods of climatology global radiation.The calculation methods and results of global solar radiation in Tibetan Plateau with clear-sky(possible) solar total radiation,global radiation of astronomy and idea atmosphere as initial data.According to measured data of monthly total radiation Q,monthly average sunshine time n and monthly average sunshine percentage s in 10 ywars from 1971 to 1980 from meteorological stations in Tibet Plateau,the selection methods and results of angstrom-prescott indexes a and b in Lhasa.The result showed that a=0.27,b=0.55 in whole year;a=0.28,b=0.55 in winter year(October-March next year);a=0.35,b=0.41 in summer year(April-September).

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