15 Using digital terrain model in simulations

Terrain setup and how to use DEM calculations in SEAMCAT simulation

Chapter content:

1. How to setup system and simulation using digital terrain in SEAMCAT and run simulations

2. How to inspect results of simulation using digital terrain in SEAMCAT

3. How to use Terrain profile Tool

4. How to use Propagation Model Test Tool

5. How to use EPP 15 to extract terrain data of simulation using digital terrain in SEAMCAT

6. How to use EPP 1 to extract Geo coordinates and propagation loss of simulation using digital terrain in SEAMCAT

7. How to download SRTM files on website https://earthexplorer.usgs.gov´

8. Where to find and how to download ASTER GeoTIFF files

9. Note on void filling method in SEAMCAT

Pre-requisites

• Download / installation of SEAMCAT version supporting DEM / SEM (5.4.3A4 or later)

• SEAMCAT terrain reader supports:

  • SRTM 1-Arc second (30 m) version 2 and version 3 in bil format

  • SRTM 3-Arc second (90m) version 2 raster data in bil format

  • SRTM 1-Arc second (30 m) version 3 GeoTIFF in tif format

  • ASTER GeoTIFF in tif format

  • Other GeoTIFF formats ending with dem.tif, 1arc_v3.tif

• Terrain tiles needed for the area of interest have to be downloaded (e.g. using USGS earth explorer, or elsewhere – see information on acquiring the data bellow) and put in Folder reachable to SEAMCAT (could be also on cloud)