内蒙古农业科技Issue(3)：93-95,3.DOI:10.3969/j.issn.1007-0907.2015.03.035
赤峰市近50年初霜冻日期变化特征分析
Variation characteristics of first frost dates of Chifeng City in recent 50 years
李超 1魏学 1胡桂杰 1张新龙 1徐立强2
作者信息
- 1. 赤峰市气象局，内蒙古 赤峰 024000
- 2. 克什克腾旗气象局，内蒙古 经棚镇 025350
- 折叠
摘要
Abstract
Based on the employment of 0 cm soil temperature ≤0℃ as climatic index for frost,the data of first frost dates collected from 14 meteorological stations in Chifeng City were analyzed by basic statistical methods and climate diagnosis methods.The result showed that the average first frost date is September 21st and the spatial distribution difference of the first frost dates was obvious.The average first frost date in recent 50 years obviously delayed at a rate of 1.5 d/10a.Mutation of the first frost date was observed in 1997.The average first frost date after 1997 was 4 days later than that before the mutation.关键词
初霜冻/变化特征/突变检验Key words
First frost/Variation characteristics/Abrupt change test分类
天文与地球科学引用本文复制引用
李超,魏学,胡桂杰,张新龙,徐立强..赤峰市近50年初霜冻日期变化特征分析[J].内蒙古农业科技,2015,(3):93-95,3.
