hGRS documentation

The atmospheric correction processor hGRS is dedicated to water-leaving radiance retrieval from Hyperspectral satelite images possensing visible to SWIR spectral acquisition. hGRS is capable of retrieving the aerosol content, water vapor, sunglint and water-leaving radiance from a non-linear optimization solver. The algorithm is mainly based on pre-computed simulations of the fully coupled water-atmosphere radiative transfer and a constrained non-linear optimization scheme enabling to impose the non-negativity property of the retrieved water reflectances.

• Drivers fully implemented for PRISMA and EnMAP, with automatic geoprojection of PRISMA L1C/L2D images

• Cloud masking based on OmniCloudMask

• Output images are provided in netcdf(soon ZARR) format with specific compression enabling a significant reduction of the file size.

Getting started:

• Usage
  • Installation
    • Installation from hGRS repository (enables use of the notebook and visualization tools)

Tutorials

• Basics
  • For PRISMA
  • For EnMAP
  • Plot and interact
  • Holoviews tools

API reference

Interactive data manipulation

Please see the GRS Toolbox package grstbx

Indices and tables

• Index

• Module Index

• Search Page