自然资源学报 ›› 2006, Vol. 21 ›› Issue (1): 139-145.doi: 10.11849/zrzyxb.2006.01.018

• 研究方法 • 上一篇    下一篇

中国地表净辐射推算方法的研究

刘新安1,2, 于贵瑞1, 何洪林1, 蔡福3, 祝青林4   

  1. 1. 中国科学院地理科学与资源研究所CERN综合研究中心,北京100101;
    2. 中国气象局沈阳大气环境研究所, 沈阳110016;
    3. 大连气象台,辽宁大连116001;
    4. 沈阳农业大学应用气象系,沈阳110161
  • 收稿日期:2005-06-07 修回日期:2005-10-10 出版日期:2006-02-25 发布日期:2006-02-25
  • 作者简介:刘新安(1942),男,辽宁人连人,教授、项日聘用研究员,主要从事农业气象与应用气候研究。E-mailainxin_an@sina.com
  • 基金资助:

    国家杰出青年基金项目(30225012)资助

Research on the Calculating of Surface Net Radiation in China

LIU Xin-an1,2, YU Gui-rui1, HE Hong-lin1, CAI FU3, ZHU Qing-lin4   

  1. 1. CERN Synthesis Research Centre,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China;
    2. Department of Applied Meteorology,Shenyang Agriculture University,Shenyang 110161,China;
    3. Institute of Atmospheric Environment,CMA,Shenyang 110016,China;
    4. Dalian Meteorological Observatory,Dalian 116001,China
  • Received:2005-06-07 Revised:2005-10-10 Online:2006-02-25 Published:2006-02-25

摘要: 利用我国气象系统现有的50个净辐射站1993—2000年的辐射及相关气象资料,采用5种方法计算地表净辐射月值,结果表明:论文构建的多因子综合法是一种误差最小、精度最高的推算方法,平均相对误差为0.348,4至9月误差在0.20以下,可用于全年各月地表净辐射的推算;其次为Chang JenHu修正式和Penman修正式,平均相对误差都在0.64以下,误差小于0.20的站月数约占半数左右,4至9月误差都在0.25以下,可用于植物生长期间的地表净辐射推算。各种方法推算的平均相对误差,都具有北部地区明显大于南部地区,冬半年(11至2月)明显大于夏半年(3至10月)的时空分布特征。

关键词: 地表净辐射, 推算方法, 模式

Abstract: Surface net radiation is an important driving force to climate change or even global change,and one of the important parameters for establishing various kinds of ecological models.However,the relatively few surface net radiation stations in China can not meet the needs of scientific research and operation.There is an urgent need to establish or screen out a method suitable for calculating surface net radiation in China.Therefore,by use of 1993-2000 radiation and related meteorology data from 50 net radiation stations in China,net radiations monthly were calculated using 5 methods,independently.By comparing the error of each method,we found that synthesis method including multi-factors constructed in this paper was proved to be a perfect method with mean relative error of 50 stations is 0.348,and <0.20 from April to September,which can be applied in the calculation of net radiation every month.In addition,methods of Chang JenHu formula and Penmann formula with the mean relative error of 50 stations is <0.64,<0.25 from April to September and the number of months <0.20 account for about half of the year can be applied in the calculation of surface net radiation during growth period.Mean relative errors induced using various methods have a temporal and spatial distribution characteristic that the values in northern China are bigger than those of the southern China and summer month(March to October) are bigger than winter month(November to January).

Key words: surface net radiation, calculating method, model