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Titre du document / Document title

The life-span of a small high mountain lake, the Vordere Blaue Gumpe in the Bavarian Alps

Auteur(s) / Author(s)

MORCHE David (1) ; KATTERFELD Christian (2) ; FUCHS Sebastian (1) ; SCHMIDT Karl-Heinz (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Geography, Martin -Luther -University Halle-Wittenberg, 06099 Halle, ALLEMAGNE
(2) Department of Geography, University of Basel, Klingelbergstrasse 27, 4056 Basel, SUISSE

Résumé / Abstract

The Reintal valley in the Wetterstein Mountains in Upper Bavaria has been dammed by large rockslide deposits in some localities. Behind one of the dams a small lake, the Vordere Blaue Gumpe, was still in existence until 23 August 2005. The lake was a natural sediment sink, decoupling an area of about 1.6 km2 from fluvial sediment export out of the sediment cascade of the Reintal valley. The bergsturz event occurred about 200 years ago. It was dated by evaluating historical maps, paintings, photographs and sketches. Present research is focused on multi-temporal changes of the alluvial deposits of the delta by analysis of aerial photos and geodetic surveying. Volume loss of the lake is closely related to bed load input during extreme events and shows the geomorphic coupling of hillslope and channel systems. From regression analyses of the annual volumetric change of the lake volume, the life-expectancy of the lake was estimated to be about 15 years, before an extreme high magnitude event in August 2005 filled the lake completely with sediment. Now, after the filling of the lake, with the coupling of the catchment area of the Vordere Blaue Gumpe to downstream fluvial sediment export, higher solid load transport is expected in the lower reaches with possible negative effects on infrastructure.

Revue / Journal Title

IAHS-AISH publication    ISSN  0144-7815   CODEN IAPUEP 

Source / Source

Congrès
Sediment dynamics and the hydromorphology of fluvial systems :   ( Dundee, 2-7 July 2006 )
Sediment dynamics and the hydromorphology of fluvial systems. Conference , ROYAUME-UNI (2006)
2006  , vol. 306, pp. 72-81[Note(s) : vi-630 p., ] [Document : 10 p.] (17 ref.) ISBN 1-901502-68-6 ;  Illustration : Illustration ;

Langue / Language

Anglais

Editeur / Publisher

International Association of Hydrological Sciences, Wallingford, ROYAUME-UNI  (1973) (Revue)
IAHS, Wallingford, ROYAUME-UNI  (2006) (Monographie)

Mots-clés anglais / English Keywords

Central Europe

;

Germany

;

Europe

;

Alps

;

Central Alps

;

Bavaria Germany

;

Bavarian Alps

;

geomorphology

;

geodesy

;

fluvial sedimentation

;

sediment transport

;

sedimentation

;

transport

;

drainage basins

;

regression analysis

;

channels

;

coupling

;

deltas

;

alluvium

;

cascades

;

export

;

decoupling

;

dams

;

rockslides

;

valleys

;

lakes

;

mountains

;

Mots-clés français / French Keywords

Europe Centrale

;

Allemagne

;

Europe

;

Alpes

;

Alpes Centrales

;

Bavière

;

Alpes Bavaroises

;

Lac montagne

;

Géomorphologie

;

Géodésie

;

Sédimentation fluviatile

;

Transport sédiment

;

Sédimentation

;

Transport

;

Bassin versant

;

Régression statistique

;

Chenal

;

Couplage

;

Delta

;

Alluvion

;

Cascade

;

Exportation

;

Découplage

;

Barrage

;

Eboulis

;

Vallée

;

Lac

;

Massif montagneux

;

Mots-clés espagnols / Spanish Keywords

Europa central

;

Alemania

;

Europa

;

Alpes

;

Baviera

;

Alpes Bávaros

;

Geomorfología

;

Geodesia

;

Sedimentación fluvial

;

Sedimentación

;

Transporte

;

Cuenca

;

Regresión estadística

;

Canal

;

Delta

;

Aluvión

;

Exportación

;

Presa

;

Derrubio

;

Valle

;

Lago

;

Macizo montañoso

;

Localisation / Location

INIST-CNRS, Cote INIST : 8967, 35400015352983.0090

Nº notice refdoc (ud4) : 18806225



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