Glacier Change Detection in GRASS GIS

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Purpose

The purpose of this tutorial is to visualize and assess the change in the extent of a marine-terminating glacier in the Canadian Arctic over time. To assess the change in extent, this tutorial will demonstrate how to classify the snow/ice cover in Landsat 8/9 images using a generic Normalized Difference Snow Index (NDSI) technique. This tutorial is

Introduction

Software Download and Instillation

This tutorial is demonstrated in Windows using GRASS GIS version 8.4.0. The latest version of GRASS GIS can be downloaded here

Data Sources

Methods

Set Up

Import Data

Calculate NDSI

Time Series Change Detection with Landsat 8/9

Change Detection with Sentinel 2

Conclusion