Clearwater crater lake

Sentinel-1 CSAR IW acquired on 19 March 2015 at 22:46:25 UTC
Sentinel-1 CSAR IW acquired on 27 September 2016 at 22:46:07 UTC
Sentinel-2 MSI acquired on 15 August 2018 at 16:10:01 UTC
Sentinel-2 MSI acquired on 12 April 2019 at 16:09:01 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Land, impact crater, lake, asteroid, taiga, season, ice, snow, Quebec, Canada
Fig. 1 - S2 (15.08.2018) - 8,3,2 colour composite - Clearwater Lake is a 1226 km²-large, 178 m-deep lake, the 2nd largest in Quebec.
Fig. 2 - S1 (27.09.2016) - vv,vh,ndi(vh,vv) colour composite - It occupies the near-circular depressions of two eroded impact craters.
Lying in NW Quebec in the Canadian shield, the eastern crater is 26 km-wide & ~465 million years old, the western is 36 km-wide & ~286 myo.
Fig. 3 - 19.03.2015 - vv,vh,ndi(vh,vv) composite - Both are complex craters with central peaks (water & sediments cover the eastern peak).
Fig. 4 - 12.04.2018 - 12,11,2 composite - The central islands are an arctic enclave of artic flora surrounded by boreal species on the shores.