A flood allows the dry Gascoygne river to reach the sea, Australia

Sentinel-2 MSI acquired on 26 January 2021 at 02:13:51 UTC
Sentinel-2 MSI acquired on 29 January 2021 at 02:32:51 UTC
Sentinel-2 MSI acquired on 08 February 2021 at 02:32:51 UTC
Sentinel-2 MSI acquired on 10 February 2021 at 02:13:49 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Hydrology, river, flood, precipitations, water colour, sediments, alluvium, erosion, Australia
Fig. 1 - S2 (29.01.2021) - Gascoyne River is the longest river in Western Australia at 865km.
Fig. 2 - S2 (08.02.2021) - Its lower course was dry until precipitations flooded its riverbed.
Fig. 3 - S2 (29.01.2021) - It flows for about 120 days of the year and below the dry river bed for the remainder of the year.
Fig. 4 - S2 (08.02.2021) - It is in effect a huge water storage system with the river's aquifers lying below the desert sands.
Fig. 5 - S2 (29.01.2021) - The river reaches its mouth as it flows into Shark Bay and the Indian Ocean at Carnarvon.
Fig. 6 - S2 (08.02.2021) - As it filled its then dried river bed and reached the sea, the Gascoyne river brought a heavy sediment load.