Creating A Digital Elevation Model using Sentinel-1 Data

Guide to Creating a Digital Elevation Model Using Sentinel-1 Data in the Sentinel Application Platform (SNAP)

Create a DEM using Sentinel-1 Data

This tutorial will guide you through creating a Digital Elevation Model (DEM) from two Sentinel-1 SLC scenes by first creating an interferogram, and completing the needed phase unwrapping steps, to finally create the DEM.

Background

Pair Selection for DEMs

More Details for Pair Selection

Tradeoffs of DEMs Created with Sentinel’s C-Band

Prerequisites

Materials List

Steps

Opening Data in Sentinel-1 Toolbox

Open the Products
View the Products
Visualize a Band

Coregister the Data

Coregister the Images

Interferogram Formation and Coherence Estimation

Form the Interferogram

Visualize Interferometric Phase

TOPS Deburst

Multi-looking and Phase Filtering

Phase Filtering

Unwrap an Interferogram with SNAPHU

Export to SNAPHU
Install a Linux VM
Unwrap an Interferogram with SNAPHU
Move Files to PC/Mac

Defect Warning and Workaround

Open the Files in Sentinel-1 Toolbox

Snaphu Import

Create the DEM — Convert Phase to Elevation

Geocode the DEM

Terrain Correction

The DEM Product

Details

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