The Climate Information System of China

Climate Research

Qiong Gao¹  Zongbo Shang¹  Dianan Yang¹ 

关键词: Climate Information System of China (CISC);    Trend surface analysis;    Aridity index;    Global change;   

DOI  :  10.3354/cr018229

来源: Inter-Research Science Publishing

【 摘 要 】

ABSTRACT: The Climate Information System of China (CISC) was built using Visual C++ and Java to perform 4 main functions: (1) to describe the variation in the spatial distribution of particular climatic variables with minimal digital information; (2) toseparate the impacts of large-scale factors and local factors on climatic distribution and generate a raster database from the data collected from dispersed stations; (3) to share the climatic data on the Internet; and (4) to evaluate the impact of globalchange on Chinese water conditions under a number of prescribed climate scenarios. The establishment of CISC is described in detail. A digital elevation model and some meteorological (climatic) equations were used to calculate raster radiation data.Trend surface analysis and the interpolation method were used to analyze the spatial distribution of temperature, precipitation, relative humidity, sunshine fraction, and wind velocity and to generate the raster database. Penman¹s equation was amended andparameterized to calculate the potential evapotranspiration over China. An aridity index was calculated under present situations and 12 prescribed climate scenarios (raising mean temperature by 1.5, 3.0 and 4.5°C and changing precipitation by 0, +10, +20and -10%) to assess the sensitivity of Chinese water conditions to global change. Some Java applets were written to make it possible to share Chinese climate information on the Internet.

【 授权许可】

Unknown