PRELIMINARY RESULTS OF USING SENTINEL-1 SAR DATA FOR DSM GENERATION
Digital Surface Model (DSM) generation can be achieved through radar interferometry, utilizing the phase difference between the representations of the interferometric pairs. Interferometry is a widely used height information acquisition technique for large areas. Sentinel-1 continues the C-band SAR...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
European Association of Geographers
2023-04-01
|
| Series: | European Journal of Geography |
| Subjects: | |
| Online Access: | https://www.eurogeojournal.eu/index.php/egj/article/view/409 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Digital Surface Model (DSM) generation can be achieved through radar
interferometry, utilizing the phase difference between the representations of the
interferometric pairs. Interferometry is a widely used height information acquisition
technique for large areas. Sentinel-1 continues the C-band SAR Earth Observation
heritage of the European Space Agency satellites like ERS-1, ERS-2 and ENVISAT.
This paper discusses DSM generation utilizing Sentinel-1 radar data through
interferometric process in two different study areas in Greece.
DSMs generated from Sentinel-1 data were analyzed and compared to freely available
DSMs like ASTER GDEM and SRTM DEM, to DSMs created from optical remote
sensing data and to DEMs created from digitized contours from the 1/50.000
topographic maps.
The influence of the interferometric pairs baseline and the role of the different tracks
to the DSM vertical accuracy was examined. Points of known elevation have been
used to estimate the accuracy of the DSMs. 2D RMSE, correlation and the percentile
value were computed and the results are presented.
|
|---|---|
| ISSN: | 1792-1341 2410-7433 |