2021年石嘴山市气候条件及主要气候事件分析

Analysis of Climatic Conditions and Main Climatic Events in Shizuishan City in 2021

根据石嘴山市2021年逐日气象资料,通过数理统计分析法和GIS插值分析方法对石嘴山市基本气候特征及主要天气气候事件进行分析评价。结果表明:2021年石嘴山气温正常略偏高,降水偏少,大风、沙尘天气偏多,静稳天气日数偏少。该市2021年出现1月、2月“冷暖两重天”;春季降水异常多,3月降水创历史新高;首场透雨破3月日降水量极值;沙尘两次暴击;夏季降水异常少,气象干旱严重;连续高温日数突破历史极值等极端天气气候事件,对人民生命财产安全、农牧业生产和生态环境等造成了一定影响。

Based on the daily meteorological data of Shizuishan city in 2021,this paper analyzed and evaluated the basic climatic characteristics and major weather and climate events of Shizuishan city through mathematical statistics analysis and GIS interpolation analysis method.The results indicated that:In 2021,the temperature of Shizuishan city is slightly higher than normal,the precipitation was less than the same period of the year,the wind and dust weather was more than the same period of the year,the number of haze days was less than the same period of the year,and the number of static and stable weather days was less than the same period of the year.The main weather and climate events included:cold and warm weather in January and February;Spring rainfall was unusually heavy,and march precipitation reached a record high.The first rainstorm broke the extreme value of daily precipitation in March;Extremely severe sandstorm weather twice;Summer precipitation was unusually low and meteorological drought was serious;The number of consecutive high temperature days broke the historical extreme value.These extreme weather and climate events have had a certain impact on the safety of people’s lives and property,agricultural and animal husbandry production and the ecological environment.