Lunghin Pass, the apex of the European river system

Sentinel-1 CSAR IW acquired on 03 September 2018 at 17:15:17 UTC
Sentinel-2 MSI acquired on 19 October 2018 at 10:20:31 UTC
Sentinel-1 CSAR IW acquired on 06 February 2019 at 17:15:14 UTC
Sentinel-2 MSI acquired on 21 February 2019 at 10:20:39 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Land, hydrology, river, cryosphere, mountain range, glacier, lake, snow, ice, Switzerland, Italy, Austria, Alps
Fig. 1 - S1 (03.09.2018) - vv,vh,ndi(vh,vv) colour composite - Lunghin Pass is a mountain pass & a triple watershed next to Piz Lunghin.
From there, water enters the North Sea (Atlantic Ocean) via the Rhine, the Adriatic (Mediterranean Sea) via the Po or the Black Sea via the Danube.
Fig. 2 - S1 (06.02.2019) - vv,vh,ndi(vh,vv) colour composite - Its north-west side gives birth to a river which waters end in the Rhine.
Fig. 3 - S2 (19.10.2018) - 4,3,2 natural colour - From the south-west side the water flows towards the Mera, a tributary of the Po.
Fig. 4 - S2 (21.02.2019) - 11,8,2 colour composite - The Inn originates from Lake Lunghin below the peak, east to the pass.