Open AccessMonitoring of Irrigation Area in Chuanhang Irrigation Area Based on MODIS Daily Surface Temperature Range
Author(s) -
Rui Wang,
Yuanyuan Duan,
Mengyi Li,
Rongjie Gui,
Liu Jun,
Min Chen,
Song Wen Long
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/783/1/012130
Subject(s) - irrigation , environmental science , precipitation , irrigation statistics , surface irrigation , agriculture , hydrology (agriculture) , remote sensing , water resource management , range (aeronautics) , water conservation , meteorology , geography , farm water , geology , agronomy , materials science , geotechnical engineering , archaeology , composite material , biology
Monitoring and analysis of irrigated area is of great significance to evaluate irrigation benefit, agricultural drought situation and regional water resources utilization. This article selects MODIS surface temperature products from 2016 to 2020. Using the method of daily difference in surface temperature, eliminating the influence of precipitation, realizing remote sensing monitoring of irrigation intensity and spatial distribution of irrigation area. The results showed that the average number of irrigation times in five years was in the range of 6-8. Due to factors such as rainfall during the irrigation period, the overall irrigation frequency from 2016 to 2018 is less than the overall irrigation frequency in 2019 and 2020. On June 11, 2018, remote sensing images detected irrigation areas of Buzi Town, Longhe Town, Yangbei Town and Chenji Town, which were consistent with the data of irrigation areas.