Disputed China-Russia border on Bolchoï Oussouriisk island

Sentinel-1 CSAR IW acquired on 23 November 2017 at 21:12:04 UTC
Sentinel-1 CSAR IW acquired on 10 May 2018 at 21:12:03 UTC
Sentinel-2 MSI acquired on 15 November 2022 at 02:09:39 UTC
Sentinel-2 MSI acquired on 03 September 2023 at 01:57:01 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Land, island, river, border, security, Russia, China
Fig. 1 - S1 (23.08.2022) - Bolchoï Oussouriisk island is located on the border between China (south-west) and Russia (north and east).
Fig. 2 - S2 (09.05.2022); S1 (10.05.2018) - According to a 2004 treaty, the border divides the island between east and west.
Fig. 3 - S2 (03.09.2023); S1 (23.08.2022) - According to the latest official map released by China, it considers the island wholly Chinese.
Fig. 4 - S2 (15.11.2022); S1 (23.11.2017) - It is one of the many border disputes this new map of China generates with its neighbours.
Most of these border disputes are not new and had already been dealt with in the past:
  • SED-680 - Disputed China-Russia border on 4000m high skirmishes at the Chinese-Indian 'border'
  • SED-844 - Uninhabited islets of discord in Senkaku Islands, Japan
  • EVT-1095 - Artificial islands in the South China Sea
  • SED-1124 - Spotlight on Taiwan