Process chain for CopDEM 90 (Gisco Service)

Introduction

The Gisco-Services version of Copernicus Digital Elevation Model (DEM) (CopDEM) has errors along the date-line. This was discovered only after visualizing the results of the DEM correction. Further, in February 2022 the Forest and Building adjusted CopDEM (FABDEM) was published, and is at time of editing this (April 2022) the preferred version of CopDEM for hydrological modeling. The process chain in this post is redundant but kept for future reference.

For a more comprehensive instructions on the processing of Copernicus DEM, see the post on the processing of the CopDEM AWS version.

Prerequisits

You must have installed Karttur’s GeoImagine Framework. You also need a registered project that covers the geographic regions of the DEM you want to process. The latter can, however, be done as part of the project itself.

Overview

This post summarises the processes chain for the CopDEM version available on Gisco-Services in Karttur’s GeoImagine Framework.

Process chain

The process chain is under the Hide/show button below. The process chain is an ordinary text file linking to a series of json files. Empty rows and rows starting with a “#” are ignored. When called from Karttur’s GeoImagine Framework, the processes of each json file are sequentially run. In the process chain below you can click on each json file name to see the complete content.

Hide/Show Process chain

  
## Search gisco-services online products for CopDEM 90 m version
0100_SearchCopernicusProducts_gs-CopDEM-90m.json

## Download gisco-services online products for CopDEM 90 m version
0110_DownloadCopernicus_gs-CopDEM-90m.json

## Explode (UnZip) downloaded gisco-services CopDem 90m products
0120_UnZipRawData_gs-CopDEM-90m.json

## Create polygons for all the downloaded gisco-services CopDEM tiles (optional)
0122_BBoxTiledRawData_gs-CopDEM-90m.json

## Mosaic the gisco-services CopDEM 90m raw tiles
0125_MosaicAncillary_gs-CopDEM-90m.json

## Import the CopDEM 90 m virtual data to the Framework
0160_OrganizeAncillary_gs-CopDEM-90m.json

## Tile the virtual CopDEM 90 m mosaic to tif tiles
0180_TileAncillaryRegion_gs-CopDem-90m.json

## Create CopDEM 90 m virtual overlap mosaics for each original tile
0190_MosaicAdjacentTiles_gs-CopDEM-90m.json

## Fill single pits and peaks (adjacent to streams)
0230_GrassDemFillDirTiles_gs-CopDEM_90m.json

## Create CopDEM 90 m virtual overlap mosaics for each filled/flattened tile
0191_MosaicAdjacentTiles_gs-CopDEM-90m.json

## Fill larger pits in streams of CopDEM 90 m with r.hydrodem
0240_GrassDemHydroDemTiles_gs-CopDEM-90m.json

## Create virtual overlaps of the twice filled CopDEM 90m
0192_MosaicAdjacentTiles_gs-CopDEM-90m.json

## Correct the CopDEM 90m shoreline
0210_GrassOnetoManyTiles-correct-shoreline_gs-CopDEM-90m.json