Data Services Directory

Spectral Indices (Combined)

This service provides soil, vegetation and water indices as images for your specified area of interest.

Each of the group of indices provide metrics about soil, vegetation and water properties. Given an area of interest, the algorithm is run using Sentinel-2 to return the indices from the start date to the optional end date. The soil indices produced are:

• Clay Minerals (CM),
• Ferrous Minerals (FM) and
• Iron Oxide (IO).

The vegetation indices produced are:

• Enhanced Vegetation Index (EVI),
• Green Vegetation Index (GVI),
• Iron Oxide (IO),
• Leaf Area Index (LAI),
• Modified Triangular Vegetation Index - Improved (MTVII),
• Normalized Difference Vegetation Index (NDVI),
• Optimized Soil Adjusted Vegetation Index (OSAVI),
• Plant Senescence Reflectance Index (PSRI),
• Renormalized Difference Vegetation Index (RDVI),
• Red Edge Normalized Difference Vegetation Index (RENDVI),
• Red Green Ratio Index (RGRI) and
• Soil Adjusted Vegetation Index (SAVI).
• Normalized Difference Nitrogen Index (NDNI).

The water indices produced are:

• Modified Normalized Difference Water Index (MNDWI),
• Normalized Difference Mud Index (NDMI) and
• WorldView Water Index (WWI).

The imagery is output as a series of GeoTIFF files, each with a single band representing the calculated indices. Pixel values are typically on a normalised scale (-1 to 1), although a small number of indices have different potential ranges of values. All GeoTIFF files are provided at native resolution of the inputs.