JIANG Chuang-ye,WEI Na,CHENG Xiao-xia,et al.Analysis of Inter-annual Temperature and Precipitation Regional Change During 1961-2008 in Shaanxi Province[J].Research of Soil and Water Conservation,2011,18(01):197-200.
1961-2008年陕西省年际气温和降水区域性变化特征分析
- Title:
- Analysis of Inter-annual Temperature and Precipitation Regional Change During 1961-2008 in Shaanxi Province
- Keywords:
- temperature; precipitation; regional difference; climate change
- 分类号:
- P426.614
- 摘要:
- 采用陕西省1961-2008年63个测站均一化订正后的气候资料，分析了陕西省不同区域近48 a来的气候变化，结果表明：年平均气温近48 a上升趋势明显，在1993年前后发生突变，突变前后年平均气温显著上升了0.8℃，上升幅度呈由南到北逐渐增强的趋势；冬、春季气温在突变后上升最为明显，升温幅度较大区域分别为长城沿线风沙区和渭河河谷平原区，年平均最高气温在1990年以后迅速升高，最低气温在2000年开始迅速升高；全省年平均降水呈明显的减少趋势，年平均降水的线性减少率为19.6 mm/10 a，秦岭南麓浅山区、汉江河谷平原及巴山区年平均降水的减少趋势比较明显。1980年前后和2000年前后为暴雨多发期，但中、大雨的总日数呈明显减少。
- Abstract:
- Based on the dataset of 63 meteorological stations from 1961 to 2008, the climate change in different regions of Shaanxi province was analyzed. The results showed that: The annual temperature showed obviously warming tendency from the south to the north in the last 48 years, and the after annual temperature was warmer 0.8℃ than before the abrupt climate warming of 1993; The winter and the spring temperature increased most obviously in the windy and sandy region along the Great Wall and the Weihe River plain; The annual maximum temperature and minimum temperature increased after the 1990s and 2000s respectively. The precipitation over the different regions of Shaanxi province showed decreased tendency, the declining rate is 19.6 mm/10 a from 1961 to 2008, and especially the south Qinling shallow mountains and Han River plain. The frequency of rainstorm increased in 1980 and 2000, but the heavy rain and moderate rain decreased distinctly.
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备注/Memo
收稿日期:2010-12-25;改回日期:2011-1-8。
基金项目:国家科技部公益性行业（气象）科研专项（GYHY201006036）；国家科技支撑计划项目（2007BAC29B03）
作者简介:姜创业（1958- ），男，山西人，高级工程师，主要从事气候与和气候变化分析研究。E-mail：chuangyj77@163.com