Framework project: Digital Elevation Models (DEMs)

Introduction

This blog on global Digital Elevation Models (DEMs) contains two parts; 1) a general part on global DEMs and how to access and process them using Karttur' GeoImagine Framework, and 2) a part that outline the detailed processing of Copernicus DEM.

Global DEM access and processing

• Global DEMs: access and download June 25, 2021 Introduction and access to global Digital Elevation Models (DEMs)
• DEM process setup (Arctic DEM) June 29, 2021 Downloading and organizing the Arctic Digital Elevation Model (DEM)
• Mosaics for avoiding edge effects July 02, 2021 Virtual mosaics for avoiding edge effects from neighbourhood analysis in raster data
• GDAL Terrain analysis I (Arctic DEM) July 06, 2021 Deriving slope, aspect and hillshade with GDAL
• GDAL Terrain analysis II (Arctic DEM) July 12, 2021 Deriving terrain indexes with GDAL.

Processing of Gisco-Services CopDEM (redundant)

• Process chain for CopDEM 90 (Gisco Service) August 11, 2021 Process chain for CopDEM 90 m version from Gisco-Service using Kartturs GeoImagine Framework

Copernicus DEM processing

• Download CopDEM 90 m from gisco-services August 14, 2021 Search and download Copernicus DEM 90 m version from gisco-services using Kartturs GeoImagine Framework
• Download CopDEM 90 m from AWS August 16, 2021 Download Copernicus DEM 90 m version from Amazon Web Services (AWS)
• Tile CopDEM 90 m from AWS April 03, 2022 Tile Copernicus DEM 90 m version from Amazon Web Services (AWS) while also reprojecting to EASE Grid North
• CopDEM virtual tiles April 04, 2022 Create spatially expanded virtual tile mosaics
• CopDEM hydro correction April 05, 2022 Hydrological correction of Coperncisu DEM with GRASS GIS