1951-1978和1979-2007年中国逐日非降水变量模拟参数变化(英文)

编号 zgly0001585283

文献类型 期刊论文

文献题名 1951-1978和1979-2007年中国逐日非降水变量模拟参数变化(英文)

作者 廖要明 

作者单位 LaboratoryforClimateStudies/NationalClimateCenter  CMA  StateKeyLaboratoryofEarthSurfaceProcessesandResourceEcology  SchoolofGeography  BeijingNormalUniversity 

母体文献 Journal of Geographical Sciences 

年卷期 2013年04期

年份 2013 

分类号 P468.024 

关键词 BCC/RCG-WGweathergenerator  dailynon-precipitationvariables  climatechange  parameters  China 

文摘内容 Parameters of weather generator BCC/RCG-WG for daily non-precipitation variables including maximum temperature, minimum temperature and sunshine hours at 669 stations in China are estimated using history daily records from 1951 to 1978 and from 1979 to 2007 respectively. The changes in the parameters for the two periods are revealed to explore the impact of climate change on these parameters. The results show that the parameters of the non-precipitation variables have experienced different changes. While the annual means and the amplitudes of the seasonal cycle show a clear change, the interannual variability, the timings of the seasonal cycles, and the temporal correlations for each variable remain practically unchanged. This indicates that climate changes in China over the last 57 years are mainly reflected in variations in the means and in the strength of the seasonal cycles. The changed parameters have implications for the stationary assumption implied in the parameter estimation and use of the weather generator for climate change studies.