摘要
利用归一化差异水分指数(NDWI)对衡邵盆地进了干旱监测分析。结果表明,NDWI能很好地反映干旱发生发展的过程,NDWI监测的干旱发生时段和区域与降水量严重偏少的时段和区域有很好的吻合性。此外,NDWI监测的干旱发生区域主要集中在衡邵盆地中部的农业耕作区,能间接地反映农业干旱发生情况。
Drought monitoring and analysis were carried out in Hengshao Basin based on the normalized difference water index(NDWI).The results showed that NDWI could well reflect the process of drought occurrence and development.The periods and regions of drought monitored by NDWI had a good agreement with the periods and regions of severely low precipitation.In addition,the drought regions monitored by NDWI were mainly concentrated in the agricultural farming regions of the middle Hengshao Basin,which could indirectly reflect the occurrence of agricultural drought.
作者
李涵茂
陈健翔
贺红志
唐语馨
韩波
LI Hanmao;CHEN Jianxiang;HE Hongzhi;TANG Yuxin;HAN Bo(Hengyang Agro-meteorological Experiment Station,Hengyang Hunan 421001;Hengyang Meteorological Bureau,Hengyang Hunan 421001;Meteorological Disaster Prevention and Mitigation Key Laboratory of Hunan Province,Changsha Hunan 410118)
出处
《现代农业科技》
2024年第8期110-114,共5页
Modern Agricultural Science and Technology
基金
湖南省气象局2020年重点课题项目(XQKJ20A002)
国家重点研发计划专题“热带与特色林果气象灾害监测预警技术与业务平台”(2019YFD1002203)。
