Diamonds under the ice, Mir mine, Siberia

Sentinel-2 MSI acquired on 11 April 2018 at 04:07:11 UTC
Sentinel-2 MSI acquired on 01 May 2018 at 04:05:51 UTC
Sentinel-2 MSI acquired on 05 June 2018 at 04:06:59 UTC
Sentinel-2 MSI acquired on 23 September 2018 at 04:05:39 UTC
Sentinel-1 CSAR IW acquired on 24 September 2018 at 22:54:59 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Land, open pit mine, natural resources, seasonal change, taiga, geology, Siberia, Russia
Fig. 1 - S1 (24.09.2018) - vv,vh,vv colour composite - Mir open pit (aka Mirny mine) lies in Sakha Republic, Siberia, in Russia.
Fig. 2 - S2 (11.04.2018) - 12,11,2 - 525m deep & 1200m wide, it's the 4th deepest & one of the biggest excavated holes.
Fig. 3 - 01.05.2018 - 4,3,2 - Open-pit mining discontinued in 2001. Since 2009, it's been active as an underground mine.
Fig. 4 - 23.09.2018 - 11,8,2 - Another kimberlite pipe lying SW, Internationalnaya diamond mine, produces 60% as much.