Open Agriculture | |
Seasonal normalized difference vegetation index responses to air temperature and precipitation in Baghdad | |
Mahmood Dalia A.1  Naif Salwa S.1  Al-Jiboori Monim H.1  | |
[1] Department of Atmospheric Sciences, College of Science, Mustansiriyah University, Baghdad, Iraq; | |
关键词: seasonal ndvi; air temperature; precipitation; correlation analysis; baghdad; | |
DOI : 10.1515/opag-2020-0065 | |
来源: DOAJ |
【 摘 要 】
The spatial distribution of urban vegetation cover is strongly related to climatological conditions, which play a vital role in urban cooling via shading and reducing ground surface temperature and effective strategy in mitigation urban heat island. Based on the Landsat satellite images, the quantitative normalized difference vegetation index (NDVI) was spatially mapped at two times for each year during 2008, 2013, 2019 in Baghdad. The NDVI values ranged from −1 to +1 with considering values larger than 0.2 indicate the dense healthy vegetation. In this study, the fractional areas of NDVI >0.2 were computed with their percentage. The responses of the NDVI during the growing seasons to two climate indices (i.e., air temperature and precipitation) were investigated. These climatic data obtained from the Iraqi Meteorological Organization and Seismology for the aforementioned years were used to explore the potential correlations between seasonal NDVI and above climate variables. The result shows that NDVI-derived vegetation growth patterns were highly correlated with their recording during the current growth seasons.
【 授权许可】
Unknown