摘要
基于1960—2021年黑龙江省雾天气月统计资料,利用ArcGIS软件的空间插值工具,统计分析黑龙江省雾日数时空分布特征。结果表明:(1)1960—2021年黑龙江省平均雾日为15.6 d/年。(2)雾年代际变化特征呈现为20世纪60~70年代增加,70年代至21世纪00年代逐年代减少,21世纪10年代又有增加趋势,2020年以后上升幅度明显。近62年来,雾日增长率最大的地方为牡丹江绥芬河,达8.1 d/10年。(3)从空间分布角度来看,黑龙江省雾天气基本呈现西南、东北少,西北、东南多的特征。(4)黑龙江省雾天气出现频率为春季和冬季低,夏季和秋季高,其中以6—9月最多,3—4月最少。(5)雾和相对湿度的增减趋势是一致的,当相对湿度增加1%时,雾日数增加1~4d。
In the context of fog days during the period 1960—2021 in Heilongjiang province.Statistical analysis of the distribution characteristics of fog days in Heilongjiang Province by using ArcGIS for spatial interpolation.The results show:(1)From 1960 to 2021,the average fog days in Heilongjiang Province was 15.6 d/a respectively.(2)The interdecadal variation characteristics of fog days showed that the increasing from 1960s to 1970s,decreasing from 1970s to 2000s,and increasing again in 2010s,with a significant increase after 2020.The largest growth rate of fog days is in Suifenhe,reaching 8.1 d/10 a.(3)From the perspective of spatial distribution,the fog days show the characteristics of less in the southwest and northeast and more in the northwest and southeast.(4)There are clearly seasonal and monthly characteristics of fog days and haze days in Heilongjiang Province.The province’s average fog days frequency is low in spring and winter,and high in summer and autumn,with the most from June to September and the least from March to April.(5)The increase and decrease trend of fog and relative humidity is consistent,and when the relative humidity increases by 1%,the number of fog days increases by 1~4 d.
作者
于璐
杨帆
李明玥
李想
Yu Lu(Heilongjiang Climate Centre,Harbin,Heilongjiang 150030)
出处
《农业灾害研究》
2023年第5期89-93,共5页
Journal of Agricultural Catastrophology
基金
黑龙江省气象局科技创新发展研究项目(HQJJ2022005)。
关键词
黑龙江省
雾日数
时空插值
Heilongjiang province
Fog days
Spatial and temporal interpolation
