该论文来源于网络，本站转载的论文均是优质论文，供学习和研究使用，文中立场与本网站无关，版权和著作权归原作者所有，如有不愿意被转载的情况，请通知我们删除已转载的信息，如果需要分享，请保留本段说明。 摘要 选取甘肃80个气象站1960—2017年温度、降水、暴雨、冰雹以及沙尘暴最新较长序列资料，对近58年甘肃省主要气候要素和灾害性天气要素的气候特征和变化趋势进行了分析。结果表明，甘肃省气温分布自东南向西北由盆地、河谷向高原、高山逐渐递减。全省年平均降水量大致是从东南向西北递减，东南多，西北少，中部有个相对少雨带。暴雨主要出现在陇东南部至陇南东南部，平均不到1 d;冰雹遍布全省各地，与当地的海拔、地形、气候等有着密切的关系。冰雹随着海拔升高而增多，高原、山区多于平川区，气候冷湿的地区多于气候温暖干的地区;沙尘暴河西地区最多。从气候要素的时间变化特征來看，1960年以来甘肃省年平均气温呈明显的上升趋势，特别是在1997年之后上升幅度更加明显;年降水量总体呈减少趋势，但河西地区呈上升趋势，平均年雨日呈增加趋势，暴雨日数也呈弱增加趋势;冰雹和沙尘暴日数呈显著减少。 关键词 气候特征;最新资料;时间变化特征;空间分布;变化趋势;甘肃省 中图分类号 P461 文献标识码 A 文章编号 0517-6611（2020）18-0210-10 Abstract The latest long series data of temperature， precipitation， rainstorm， hail and sandstorm from 80 meteorological stations in Gansu Province from 1960 to 2017 were selected to analyze the climatic characteristics and change trend of main climatic factors and disastrous weather factors in recent 58 years. The result showed that the temperature distribution in Gansu Province gradually decreased from southeast to northwest， from basin and valley to plateau and high mountain. The annual average precipitation of the whole province was generally decreasing from southeast to northwest， with more in Southeast and less in Northwest. There was a relatively small rain belt in the middle of Gansu. Rainstorm mainly occurred from south of Longdong to southeast of Longnan， with an average of less than one day. Hail spread all over the province， closely related to the local altitude， terrain and local climate. With the increase of altitude， hailstones increased， and there were more plateaus and mountainous areas than in plain area， and more cold and wet areas than warm and dry areas; most sandstorms occurred in Hexi area. Since 1960， the annual average temperature in Gansu Province had shown an obvious upward trend， especially after 1997. The annual precipitation had generally shown a decreasing trend， but the Hexi area had shown