Enhanced Vegetation Index 2 (EVI2): JNCC Sentinel-2 indices Analysis Ready Data (ARD)

EVI2 (Jiang et al., 2008) is computed using the near-infrared (NIR) and red bands. While the majority of EVI2 data falls within the range of -1 to +1, some values may exceed +1. These are typically associated with areas of high vegetation productivity (slightly exceeding +1), while some larger values may be associated with cloud, water or bright landscape features, such as buildings.

EVI2 can be considered complementary to NDVI for understanding variation in vegetation greenness. However, compared to NDVI, EVI2 reduces atmospheric influences and adjusts for background canopy effects. It is also less prone to saturation in regions of high vegetation productivity.

EVI2 = 2.5 * (NIR - RED) / (NIR +2.4 * RED + 1)

Sentinel-2 EVI2 (Defra/JNCC ARD bands) = 2.5 * (B07 – B03) / (B07 +2.4 * B03 + 1)

Equivalent ESA Sentinel-2 bands: B08, B04

Data are provided in EPSG: 27700 OSGB36 / British National Grid, with a pixel size of 10m, and data is pixel-aligned to the source ARD file. No-data pixels are set to a value of -9999.

These data have been created by the Joint Nature Conservation Committee (JNCC) as part of the “Earth observation-based habitat condition change detection” project. This project is funded by the Department for Environment, Food and Rural Affairs (Defra) as part of the Natural Capital and Ecosystem Assessment (NCEA) programme. The project seeks to facilitate the effective uptake and use of Earth Observation data by producing data and tools for investigating and detecting parcel-level change in habitats and habitat condition.

The dataset contains NDVI, NDMI, NDWI, NBR and EVI2 indices derived from Defra and JNCC Sentinel-2 ARD. Index files have been generated for Sentinel-2 granules covering England and Scotland for the period from 2015 to 2024.

Contains modified Copernicus Sentinel data 2015-2024.