沙漠与绿洲气象2024，Vol.18Issue(4)：36-42,7.DOI:10.12057/j.issn.1002-0799.2024.04.006
青海省东北部1980-2020年降雹持续时间及影响因子研究
Characteristic and Influence Factors of Hail Duration in Northeast Qinghai Province during 1980-2020
摘要
Abstract
Based on the high and ground observation data from 11 ground observation stations in northeastern Qinghai province from 1980 to 2020,the spatial and temporal distribution of hail duration and its influence factors were analyzed.The results show that the duration of hail was significantly positively correlated with altitude,the maximum value of average hail duration was 9 minutes in Hualong county,and the minimum value was 4.89 minutes in Tongren county in recent 41 years.The frequency was the highest when the hail duration was less than 9 minutes,accounting for 73.55%of the total observed times.The monthly variation of hail duration was obvious,the daily variation showed a single peak type,the peak value appeared at 16:00,accounting for 19.12%of the total cumulative of hail duration.The mean annual hail duration decreased by 0.9 min/10 a,the decrease of hail duration was related to the increase of average temperature,the rise of 0℃and-20℃layer height,the decrease of daily temperature range and relative humidity.关键词
降雹/时空分布/影响因子Key words
hail/spatial and temporal distribution/influence factor分类
天文与地球科学引用本文复制引用
林春英,周万福,庞昕玮,张莉燕,王启花,冯晓莉,侯永慧..青海省东北部1980-2020年降雹持续时间及影响因子研究[J].沙漠与绿洲气象,2024,18(4):36-42,7.基金项目
青海省科技厅项目(2021-ZJ-745) （2021-ZJ-745）
青海省气象局重点项目(QXZD2022-12) （QXZD2022-12）
第二次青藏高原综合科学考察研究(2019QZKK010406) （2019QZKK010406）
国家自然基金(42165008) （42165008）
