摘要
利用沈阳地区1981—2010年气候资料，应用GIS和线性气候倾向率方法对年日照、≥10℃积温、温度、降水等气候资源进行诊断分析。结果表明，近30年来沈阳地区日照时数呈现逐年减少的趋势，日照时数的年际变化存在明显的季节差异，春季、夏季、秋季均呈现减少的趋势；≥10℃积温、平均温度、平均最高温度、平均最低温度均呈逐渐升高的趋势，沈阳地区呈现出“暖干“状态；降水量呈减少趋势，趋势并不剧烈，但地域差异较大。
Abstract
Abstrcat Using the climate data from 1981 to 2010 in Shenyang,the climatic resources such as annual sunshine ,≥10℃accumulated tempera-ture,temperature and precipitation were analyzed by GIS and linear climate tendency method .The results showed that the sunshine hours showed a decreasing trend in recent 30 years in Shenyang,the annual variation of sunshine duration had obvious seasonal differences , and the spring, summer and autumn showed a decreasing trend .≥10 ℃accumulated temperature,average temperature,average maximum temperature and aver-age minimum temperature were rising trend ,and Shenyang area showed a warm -dry state.Precipitation showed a decreasing trend, the trend was not severe,but the regional difference was great.
国家科技期刊平台
NSTL
维普
万方数据