5.4 Estuaries in the Southern North Sea Region
101
Fig. 5.30 The morphological changes of the Schelde channel system and the illustration of the
behavior of the mega ripples within the fairway. Source: IAHR (2015)
Fig. 5.31 Changes in water
level (MHW: mean high water,
MLW: mean low water) at the
weir (Bremen, black line) and at
the mouth (Bremerhaven, dashed
line). Insignificant changes of
water levels at the mouth, but
significant changes of the MLW
at the weir in Bremen can be
observed. Source: Kunz (1995)
The development and distinct change in water levels is not solely observable at the
Weser. Figure 5.32 displays the change in tidal range at the Elbe and at the Schelde rivers.
The reasons for these changes are similar. The tidal range in Hamburg has almost been
doubled in the last 100 years (1.8 m in 1870, Fig. 5.32) and at the Schelde in Antwerp tidal
range has been increased by somewhat more than 1 m.
101
Fig. 5.30 The morphological changes of the Schelde channel system and the illustration of the
behavior of the mega ripples within the fairway. Source: IAHR (2015)
Fig. 5.31 Changes in water
level (MHW: mean high water,
MLW: mean low water) at the
weir (Bremen, black line) and at
the mouth (Bremerhaven, dashed
line). Insignificant changes of
water levels at the mouth, but
significant changes of the MLW
at the weir in Bremen can be
observed. Source: Kunz (1995)
The development and distinct change in water levels is not solely observable at the
Weser. Figure 5.32 displays the change in tidal range at the Elbe and at the Schelde rivers.
The reasons for these changes are similar. The tidal range in Hamburg has almost been
doubled in the last 100 years (1.8 m in 1870, Fig. 5.32) and at the Schelde in Antwerp tidal
range has been increased by somewhat more than 1 m.