Dutch stars

Sentinel-1 CSAR IW acquired on 10 September 2017 at 05:50:05 UTC
Sentinel-1 CSAR IW acquired on 26 January 2018 at 05:49:12 UTC
Sentinel-1 CSAR IW acquired on 01 February 2018 at 05:50:02 UTC
Sentinel-2 MSI acquired on 06 May 2018 at 10:50:29 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Land, urban planing, canals, security
Fig. 1 - S2 (06.05.2018) - 4,8,2 colour composite - Imbrication of star-shaped defenses in Naarden bastion fort near Amsterdam.
Fig. 2 - S1 (mean of 3 scenes) - vv,vh,ndi(vh,vv) colour composite - Its star shaped is typical of renaissance to 18th century fortifications.
Fig. 3 - 4,8,2 colour composite - Willemstad (Moerdijk), south-east of the Netherlands.
Fig. 4 - 4,8,2 colour composite - Clever use of canals near Coevorden at the border with Germany.
Fig. 5 - 4,3,2 natural colour - Fort Bourtange at the north of the border with Germany, forts with such design were very costly to besiege.