TY  - Data
T1  - Weihe River Basin MODIS mod13a2 normalized vegetation index (NDVI) data set (2000-2020)
A1  - Zhang yaonan
DO  - 10.12072/ncdc.WRiver.db0022.2021
PY  - 2021
DA  - 2021-09-29
PB  - National Cryosphere Desert Data Center
AB  - Vegetation index is an index that mainly reflects the difference between vegetation reflection in visible and near-infrared bands and soil background. Each vegetation index can be used to quantitatively describe the growth status of vegetation under certain conditions. At present, normalized vegetation index (NDVI) is an important data source for detecting vegetation growth status, vegetation coverage and eliminating some radiation errors. NDVI can reflect the background influence of plant canopy, such as soil, wet ground, snow, dead leaves, roughness, etc., and is related to vegetation cover. It is one of the important parameters reflecting crop growth and nutritional information. According to this parameter, we can know the nitrogen demand of crops in different seasons, which plays an important guiding role in the rational application of nitrogen fertilizer. Based on the MODIS mod13a2 data set, the framing images covering the Weihe River Basin are processed by batch splicing, projection conversion and clipping using MRT tools and python language code to generate the MODIS mod13a2 NDVI data of the Weihe River Basin from 2000 to 2020. The spatial resolution of this data set is 1km and the temporal resolution is 16 days.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/a3d61593-19da-4405-ac8b-bec797f00337
ER  -