Summer Drought Assessment Based on Vegetation Supply Water Index in Chongqing
- DOI
- 10.2991/rsete.2013.231How to use a DOI?
- Keywords
- Vegetation supply water index (VSWI); summer drought; Chongqing
- Abstract
This paper choose MODIS product data of single-day and 8d synthesis from June to September in 2006 to construct vegetation supply water index (VSWI) for Chongqing summer drought condition, and validated results by soil moisture; while the correlation between VSWI and precipitation is discussed, and spatial and temporal distribution of drought in Chongqing were gotten using 8d synthetic data. The results showed that: (1) VSWIE built by EVI was more suitable for monitoring summer drought in Chongqing than VSWIN built by NDVI, and VSWI built by single-day MODIS data has better correlation than VSWI built by 8-day synthetic MODIS data; (2) VSWI had a certain negative correlation with precipitation; (3) VSWI could effectively reflect the spatial and temporal differences in soil moisture, and it was an effective mean to assess summer drought.
- Copyright
- © 2013, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Yang Shiqi AU - Xu Yongjin AU - Gao Yanghua PY - 2013/08 DA - 2013/08 TI - Summer Drought Assessment Based on Vegetation Supply Water Index in Chongqing BT - Proceedings of the 2013 the International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE 2013) PB - Atlantis Press SP - 951 EP - 954 SN - 1951-6851 UR - https://doi.org/10.2991/rsete.2013.231 DO - 10.2991/rsete.2013.231 ID - Shiqi2013/08 ER -