Computation
Computation for JNCC Sentinel-1 indices Analysis Ready Data (ARD) VH/VV Cross Ratio Index
Status: Not defined
Publication State:
Abstract
Sentinel-1 dual polarisation data are obtained from the Defra and JNCC Sentinel-1 ARD CEDA dataset. The data are converted from decibel to linear scale prior to the VH/VV calculation and generation of the index files. This is performed in R v4.4.1 (R Core Team, 2024) using the calc function of the R package raster v3.6-26 (Hijmans, 2023). 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. Pixels with values of 50 or higher, or -50 or lower, were assigned the no-data value.
Contains modified Copernicus Sentinel data 2015-2025
Abbreviation: Not defined
Keywords: Not defined
| keywords: | |
|---|---|
| inputDescription: | None |
| outputDescription: | None |
| softwareReference: | None |
| Previously used record indentifiers: |
No related previous identifiers.
|
Related Documents
No documents related to this record were found.
Related parties