Vegetation Near Real-Time Data | NASA Earthdata Near real-time data provided by NASA's Land, Atmosphere Near real-time Capability for Earth observation (LANCE) can be used to monitor vegetation and crop conditions
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
Use Remote Sensing Data to Study Vegetation Dynamics Other vegetation measurement proxies include the Combined Fraction of Photosynthetically Active Radiation (FPAR) and the Leaf Area Index FPAR is defined as the fraction of incident photosynthetically active radiation (400-700 nm) absorbed by the green elements of a vegetation canopy
Impacts of the Largest Dam in China on the Local Vegetation Cover Vegetation cover type is classified by NDVI and EVI; higher values correspond to dense vegetation, medium values with sparse vegetation, and lower values with no vegetation An AST14DMO data product of the region is divided into six elevation zones ranging from at-river elevation before construction (66 meters) to the top of the surrounding
The Harmonized Landsat Sentinel-2 Project Releases Vegetation Indices Triangular Vegetation Index (TVI), which is a variant of NDVI that enhances its sensitivity to vegetation changes It is particularly useful in areas with low vegetation cover, where NDVI may not be sensitive enough TVI has applications in monitoring vegetation changes in wetlands and other areas with low vegetation cover Data Access
Vegetation Trends and Wildfire Moisture Models - Earthdata The Mann-Kendall and Sen’s slope approach revealed major changes related to forest gain loss, while the bfast approach observed more subtle changes, including vegetation degradation The authors found that certain changes could be attributed to natural (precipitation) and anthropogenic (particularly vegetation to cropland LCLUC) factors
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
Enhanced Vegetation Index (EVI) | NASA Earthdata Definition: Landsat Enhanced Vegetation Index (EVI) is similar to Normalized Difference Vegetation Index (NDVI) and can be used to quantify vegetation greenness However, EVI corrects for some atmospheric conditions and canopy background noise and is more sensitive in areas with dense vegetation Definition source: United States Geological Survey
Why Do Leaves Change Color? | NASA Earthdata The Moderate Resolution Imaging Spectroradiometer vegetation indices (MYD13Q1, MOD13Q1), can be used to monitor variations in global vegetation conditions, such as seasonal changes These data products are 16-day composites with a spatial resolution of 250-meters, and include the Normalized Difference Vegetation Index ( NDVI ) and the Enhanced
Harmonized Landsat and Sentinel-2 Vegetation Indices (HLS-VI) Data . . . The nine vegetation indices in the HLS-VI data products are: Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Soil Adjusted Vegetation Index (SAVI), Modified Soil Adjusted Vegetation Index (MSAVI), Normalized Difference Moisture Index (NDMI), Normalized Difference Water Index (NDWI), Normalized Burn Ratio (NBR