著者

小野 朗子

出版者

近畿大学工業高等専門学校

雑誌

近畿大学工業高等専門学校研究紀要 = Research reports Kindai University Technical College (ISSN:18824374)

巻号頁・発行日

no.14, pp.65-69, 2021-03-15

---

In this study, we analyzed the vegetation changes in the semi-arid regions of Tanzania in Africa using a normalized difference vegetation index (NDVI) and a normalized difference water index (NDWI) calculated from Terra/MODIS satellite data. NDVI and NDWI are the most widely used vegetation index. They have a relatively higher value in the wet season between November and April and represent the change and spread of land cover (vegetation coverage). From 2009 onwards, during drought conditions, the NDVI and NDWI time series have shown a gradual decrease.