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- Vegetation Index - NASA Earthdata
Vegetation indices measure the amount of green vegetation over a given area and can be used to assess vegetation health NASA’s Earth-observing satellites collect several different vegetation indices, including Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Leaf Area Index (LAI), and Fraction of Photosynthetically Active Radiation (FPAR)
- Use Remote Sensing Data to Study Vegetation Dynamics
Overview Remote sensing data can be used to study vegetation dynamics, such as plant healthiness Like all objects, plants have unique spectral characteristics, and this information can be interpreted from remote sensing data to determine a plant’s condition
- Vegetation Near Real-Time Data - NASA Earthdata
Normalized Difference Vegetation Index (NDVI) images produced from NASA's Land, Atmosphere Near real-time Capability for Earth observation (LANCE) data are used to monitor vegetation and crop condition There are several global regional scale systems in place that report on drought, food shortages and forecasting crop yields including the USGS Famine Early Warning Systems Network (FEWS NET
- MEaSUREs Vegetation Continuous Fields (VCF) Yearly Global 0 . . . - Earthdata
Fractional vegetation cover (FVC) is the ratio of the area of the vertical projection of green vegetation above ground to the total area, capturing the horizontal distribution and density of vegetation on the Earth's surface
- Impacts of the Largest Dam in China on the Local Vegetation Cover
An increase in dense vegetation cover is observed in elevation zones 2 and 3 (175 to 775 meters) The authors attribute the change in vegetation cover type to a possible increase in local atmospheric moisture and resulting precipitation caused by the construction of the Three Gorges Dam and the rising of the Yangtze River
- The Harmonized Landsat Sentinel-2 Project Releases Vegetation Indices
NASA’s Harmonized Landsat and Sentinel-2 (HLS) project released two new products, the Landsat 30-meter Vegetation Index (HLSL30VI) and Sentinel-2 30-meter Vegetation Index (HLSSS30VI) Each product contains a suite of nine vegetation indices including greenness, vegetative moisture content, burned area, and vegetation change (see below for a full list of indices available)
- Normalized Difference Vegetation Index (NDVI) - NASA Earthdata
Vegetation indices measure the amount of green vegetation over a given area and can be used to assess vegetation health A commonly-used vegetation index is the Normalized Difference Vegetation Index (NDVI), which uses the difference between near-infrared (NIR) and red reflectance divided by their sum
- MODIS Terra Vegetation Continuous Fields Yearly L3 Global . . . - Earthdata
The MOD44B Version 6 1 Vegetation Continuous Fields (VCF) yearly product is a global representation of surface vegetation cover as gradations of three ground cover components: percent tree cover, percent non-tree cover, and percent non-vegetated (bare) VCF products provide a continuous, quantitative portrayal of land surface cover at 250 meter (m) pixel resolution, with a sub-pixel depiction
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