Karst topography in Guilin

Sentinel-1 CSAR IW acquired on 10 February 2015 at 22:32:47 UTC
Sentinel-1 CSAR IW acquired on 05 March 2017 at 10:42:19 UTC
Sentinel-2 MSI acquired on 29 November 2018 at 03:10:51 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Land, relief, urban, karst topography, river, China.
Fig. 1 - S2 (29.11.2018) - 12,11,4 colour composite - Guilin city, South of China
3D view
Fig. 2 - S2 (29.11.2018) - 11,8,2 colour composite - It is famed for its steep karst topography.
3D view 3D animation
Most of these green limestone hills are higher than they are large, they are often interspersed by caves.
Fig. 3 - S1 (05.03.2017) - vv,vh,vv colour composite - SRTM-based pixel-scale on-the-fly orthorectification on Guilin.
3D animation 3D view
Ridgelines & talwegs remain still between optical images, ascending & descending radar images. Illuminated and shadowed sides still differ between acquisitions using the sunlight, east or west-looking radar beams as a source. As a result, images superimpose but bright and dark facets should vary.
Fig. 4 - 11,8,2 colour composite - Karst topology south east of Guilin along the Li river.
3D animation
Fig. 5 - S1 (10.02.2015) - vv,vh,vv colour composite - The addition of SRTM DEM shows finer relief on land using the 3D view.
3D animation 3D view
The views expressed herein can in no way be taken to reflect the official opinion of the European Space Agency or the European Union.
Contains modified Copernicus Sentinel data 2024, processed by VisioTerra.
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