|
|
|
| Spatiotemporal variation characteristics of snowfall at different grades in the Yantai region from 1971 to 2020 |
| Feng Defeng1,2, Hu Zheyuan1, Li Yonghua1, Huang Xuanyu1 |
1. Laiyang Meteorological Bureau,Laiyang 265200;
2. Laiyang Meteorological Disaster Prevention and Reduction Service Center,Laiyang 265200 |
|
|
|
|
Abstract Based on daily data from 11 national meteorological stations in Yantai City from 1971 to 2020,and using the snowfall classification standards of the China Meteorological Administration,the article systematically analyzed the spatiotemporal variation characteristics of different snowfall levels in Yantai during winter using linear trend analysis,MannKendall test(α＝0.05),and inverse distance weighted interpolation(IDW).The results show that the snowfall classification structure is dominated by light snow,with blizzards accounting for the lowest proportion.From 1971 to 2020,total snowfall incraeased,with the combined contribution of heavy snow and blizzards increasind.A climate abrupt change occurred in total snowfall in 1988,but no abrupt changes occurred in any of the snowfall levels.Spatially,the distribution pattern shows high values along the eastern coast and low values in the southern inland areas.The highvalue areas of blizzards highly coincide with the path of the northwest cold air mass and the effect of orographic lifting in winter.This study can provide a scientific basis for risk assessment of extreme snowfall disasters and the construction of disaster prevention systems in coastal cities.
|
|
Received: 23 December 2024
|
|
|
|
|
|
| [1] |
冯德锋,黄选瑜,胡哲源,等.烟台地区冬季不同等级降雪日数时空变化特征[J].气象水文海洋仪器,2026,43(2):8487.
|
| [2] |
杨蕾,邹瑾,丁做尉,等.青岛与济南雾日数气候变化特征差异性分析[J].山东科学,2024,37(1):128135.
|
| [3] |
李艳春,李艳芳.宁夏近百年来的气候变化及突变分析[J].高原气象,2001(1):100104.
|
| [4] |
魏凤英.现代气候统计诊断与预测技术[M].2版.北京:气象出版社,2007.
|
| [5] |
王嫣娇.锡林郭勒地区积雪时空变化规律研究[D].呼和浩特:内蒙古农业大学,2017.
|
| [6] |
郝晨阳,马秀枝,李长生,等.19702019年内蒙古大兴安岭林区降雪特征分析[J].气象与环境学报,2022,38(5):4956.
|
| [7] |
董恒鑫,张子潞,张芯瑜,等.19612017年长江中下游冬季降雪气候特征及其变化分析[J].长江科学院院报,2021,38(2):1217,23.
|
| [8] |
李海涛,邵泽东.空间插值分析算法综述[J].计算机系统应用,2019,28(7):18.
|
|
|
|
2026, Vol. 43 
