Wind-forged dune fields landscape in Erg Issaouane, eastern Algeria
30 May 2020
at 10:00:29 UTC
07 June 2020
at 10:10:31 UTC
Sentinel Vision team, VisioTerra, France -
Desert, sand sea, dunes, eolian erosion, Algeria, Sahara
Fig. 1 - S2 (30.05.2020) - Amid barchans (crescent) & star dunes, transition in sand colour from pinkish to reddish to blond in Erg Issaouane.
Fig. 2 - S2 (30.05.2020) - Dune corridors arrangement over the darker flat floor at S-E of Erg Issaouane. Some enclose sabkhahs, or salt flats.
Fig. 3 - S2 (30.05.2020) - At N-E of this sand sea, eolian forces made this arrangement of linear and transverse dunes, forming bigger dunes.
Fig. 4 - Mesoscale dunes move slowly over stationary megadunes while smaller dunes form & move faster over the backs of bigger types.
The views expressed herein can in no way be taken to reflect the official opinion of the European Space Agency or the European Union.
Contains modified Copernicus Sentinel data 2021, processed by VisioTerra.
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