The Basin Hydrography, hydrology, geology, sedimentology human-impact history, channel geometry

Dr. Roy Frings RWTH Aachen University Hydrography The Rhine Basin ƒ Basin: 185,000 km2 ƒ Length: 1232 km ƒ Inhabitants: 58 Million ƒ Countries: 9 3 BELGIUM ƒ Discharge: 2300 m /s Societal functions ƒ Culture ƒ Ecology ƒ Food supply ƒ Recreation ƒ Shipping ƒ Waste disposal LIECHTENSTEIN 2 (Modified after CHR 1976) ITALY ƒ Water supply History of human impact

Since Neolithic Since Industrialisation • Land-use changes • Narrowing (canalisation) • Bank protection Since Middle ages • Barrages • Embankment • Shipping • Meander cut-offs • Sediment mining • Bifurcation modification • Sediment feeding

3 Hydrology

Major tributaries ƒ ƒ ƒ ƒ Meuse ƒ

(Image: Paul Maas, 1998) 4 Hydrology

Max. discharge ever recorded: 12,200 m3/s (1926)

Mixed regime

Snow-melt regime

5 Geology and Relief

(SRTM data, H. Braxmeier) Basin

Lower Rhine Embayment

Rhenish Plateau

Upper Rhine Graben

Alps

6 Longitudinal bed profile

Alpine section Impounded section Freeflowing section Delta section

Delta branches

(Frings et al, 2008) 7 Erosion base The Alpine Section

Bodensee

Konstanz Alpenrhein

Vorderrhein

50 km

Tectonic setting • Uplift

8 The Alpine Section

Bodensee

Konstanz Alpenrhein

Vorderrhein

50 km Hinterrhein

Tectonic setting • Uplift

9 The Impounded Section

Iffezheim

Oberrhein

Basel Hochrhein

50 km

Tectonic setting • Uplift / Subsidence

10 The free-flowing Section

Mainz

Oberrhein

50 km Iffezheim

Tectonic setting • Subsidence

11 The free-flowing Section

Bonn

Mittelrhein

Mainz 50 km

Tectonic setting • Uplift

12 The free-flowing Section

Lobith

Niederrhein

Bonn

50 km

Tectonic setting • Slight uplift

13 The Delta Section

North Sea

IJssel

Amsterdam Nieuwe Lek/ Waterweg Nederrijn

Waal Haringvliet 50 km

Tectonic setting • Subsidence

14 The Alpine Section

15 (Foto: Frings, 2013) Lai da Tuma The Alpine Section

16 Rein da Tuma The Alpine Section

(Foto: Frings, 2013)

17 Rein da Maighels The Alpine Section

(Foto: Frings, 2013)

18 Vorderrhein The Alpine Section

(Foto: Frings, 2013)

19 Rein da Somvitg The Alpine Section

(Foto: Frings, 2013)

20 Vorderrhein (Tavanasa) The Alpine Section

(Foto: Frings, 2013)

21 Vorderrhein (Rheinschlucht ) The Alpine Section

(Foto: Frings, 2012)

22 Hinterrhein The Alpine Section

(Foto: Frings, 2012) 23 Hinterrhein The Alpine Section

(Foto: Frings, 2012)

24 Hinterrhein () The Alpine Section

(Foto: Frings, 2013)

25 Confluence Vorderrhein-Hinterrhein The Alpine Section

(Foto: Frings, 2013)

26 Alpenrhein (Vaduz) The Alpine Section

(Foto: Frings, 2013)

27 Alpenrhein (Vorstreckung) The Alpine Section

(Foto: Frings, 2013)

28 Bodensee The Alpine Section

(Foto: Rizzo, 2008)

29 Bodensee (Insel Mainau) The Alpine Section

(Foto: Frings, 2013)

30 Seerhein The Impounded Section

(Foto: Frings, 2013)

31 Hochrhein (Schaffhausen Dam) The Impounded Section

(Foto: Frings, 2012) 32 Hochrhein (Rheinfall) The Impounded Section

(Foto: Frings, 2013)

33 Hochrhein (Aare confluence) The Impounded Section

(Foto: Frings, 2013)

34 Hochrhein (canal Albbruck-Dogern) The Impounded Section

(Foto: Frings, 2013)

35 Oberrhein (Grand Canal d’Alsace) The Impounded Section

(Foto: Frings, 2013)

36 Oberrhein (Restrhein) The Impounded Section

(Foto: BfG)

37 Oberrhein (Wehr Kembs) The Impounded Section

(Foto: Frings, 2013)

38 Oberrhein (Weisweil) The Impounded Section

(Foto: BfG)

39 Oberrhein (Iffezheim dam) The free-flowing Section

(Foto: Gehres, 2010)

40 Mittelrhein The free-flowing Section

(Foto: Frings, 2011)

41 Mittelrhein (bed rock outcrop) The free-flowing Section

(Foto: Frings, 2013)

42 Moselle The free-flowing Section

(Foto: BfG)

43 Confluence of Mittelrhein and Moselle The free-flowing Section

(Foto: Frings, 2013)

44 Niederrhein (Emschermündung) The free-flowing Section

(Foto: Bilderbuch Köln)

45 Niederrhein (Cologne) The Delta Section

(Foto: Frings, 2013)

46 Waal The Delta Section

(Foto: Frings, 2013)

47 Pannerdensch Kanaal The Delta Section

(Foto: B. Boekhoven)

48 Pannerdensch Kanaal, Nederrijn, IJssel The Delta Section

(Foto: Van der Voort, 2004)

49 Merwede The Delta Section

(Foto: Frings, 2013)

50 Lek (Kinderdijk) The Delta Section

(Foto: Frings, 2013)

51 Port of Rotterdam The Delta Section

(Foto: Frings, 2013)

52 Port of Rotterdam The Delta Section

(Foto: Frings, 2013)

53 Nieuwe Waterweg (Mouth of the Rhine) The Delta Section

(Foto: Frings, 2013)

54 Haringvliet (Mouth of the Rhine) Thank you!

Dr. Roy Frings Institute of Hydraulic Engineering and Water Resources Management

RWTH Aachen University Mies-van-der-Rohe-Str. 17 52056 Aachen Germany

E-Mail: [email protected] www.iww.rwth-aachen.de

Birgit Astor Karin Banhold Dr. Roy Frings Nicole Gehres 55 Dr. Gudrun Hillebrand55 18. September 2013 Dr. Stefan Vollmer 25.03.2015