<p>This data includes EVI, NDVI, and TGDVI raster data of the Central Asian arid areas in August every year from 2000 to 2004. The spatial scope covers Central Asia, Kazakhstan, Tajikistan, Kyrgyzstan, Uzbekistan, Turkmenistan, Xinjiang of China, northwest Gansu, northern Qinghai and western Mongolia, N46.40-55.53, E34.22-114.55, the spatial resolution is 500 meters, and the temporal resolution is 16-day average of the maximum. Spatial reference GCS_WGS_1984 projection datum, data is stored in ARCGRID grid format. </p>
This dataset comes from MOD13A1. The MODIS normalized vegetation index (NDVI) is a supplement to NOAA's Ultra-High Resolution Radiometer (AVHRR) NDVI product and provides continuity to enrich time series applications in this historical archive. MODIS also includes a new Enhanced Vegetation Index (EVI) product that minimizes canopy background changes and maintains sensitivity in dense vegetation conditions. EVI also removes residual air pollution caused by smog and thin sub-pixel clouds.
MODIS NDVI and EVI products are calculated based on atmospherically corrected two-way surface reflectivity, which has been screened for water, clouds, heavy aerosols and cloud shadows.
The resolution of the original data has not been changed, and the original data attribute information has not been increased or decreased.
| # | number | name | type |
| 1 | XDA20000000 | Other |
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CSTR:33110.11.ariddc.00526
10.12389/ariddc.00526
