Langres karst plateau, hydrologic tripoint & cradle of French rivers

Sentinel-2 MSI acquired on 15 October 2017 at 10:40:09 UTC
Sentinel-1 CSAR IW acquired on 23 December 2017 at 17:31:47 UTC
Sentinel-1 CSAR IW acquired on 26 January 2018 at 05:50:27 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): River, hydrology, geology, basin, mountain range, transport, watershed, France
Fig. 1 - S2 (15.10.2017) - 11,8,2 colour composite
Centred on Langres plateau, this small moderately-high south-west north-east scarp from the north of Morvan to the south of Vosges is the cradle of several major French rivers flowing to 3 different seas.
Fig. 2 - S1 (2S1 (23.12.2017) - neg(vh,vv,vh) colour composite
River Seine and its bigger tributaries, Yonne and Aube are born in its south-west part, river Saône at its north-east stretches.
Fig. 3 - S1 (23.12.2017) - vv,vh,ndi(vh,vv) colour composite
The source of Aube, Marne, Meuse rivers as well as the watershed tripoint between Mediterranean, Channel & North Seas lie on a 50 km line.
Fig. 4 - S2 (15.10.2017) - 4,3,2 colour composite
At west is the Paris Basin in which flows river Seine, at north is the Meuse basin, at South-East is the Saône basin which is encompassed in the Rhône basin.