Alp-Water-Scarce is a European project on Water Management Strategies against Water Scarcity in t... more Alp-Water-Scarce is a European project on Water Management Strategies against Water Scarcity in the Alps funded by the Alpine Space programme as part of the "European Territorial Cooperation" scheme. The main challenges of this project are to create local Early Warning Systems against Water Scarcity in the Alps. This system will be based on sound, long-term monitoring and modeling and anchored strongly and actively within a Stakeholder Interaction Forum linked across comparative and contrasting regions across the Alps. The Early Warning System is based on the linkage and improvement of field monitoring and assemblage of qualitative and quantitative data derived both from natural water reservoirs as well as from anthropogenic water use in 28 selected pilot regions selected in France, Italy, Austria, Slovenia and Switzerland. These range across different altitudinal and climatological zones, from humid to semi-arid and include inner alpine dry valleys as well as pre-alpine r...
Bereits heute hängt mehr als die Hälfte der Weltbevölkerung am Tropf der Gebirgs-Wassertürme. Die... more Bereits heute hängt mehr als die Hälfte der Weltbevölkerung am Tropf der Gebirgs-Wassertürme. Die Wassertürme leiden jedoch nicht nur unter dem Klimawandel, sondern zunehmend auch unter den loka- len Eingriffen der Menschen. Selbst die Oberläufe der Einzugsgebiete sind von einer drastischen Zunahme an Wasserknappheit betroffen. Um Wasserkonflikte bei wachsender Weltbevölkerung zu vermeiden ist zukünftig kollektives Wassermanagement erforderlich. <em><strong>Mountains: Water towers for a growing world population:</strong></em> Already today more than half of the world's population is on the drip of the mountain water towers. However, these water towers are not only suffering from climate change but also increasingly from local anthropogenic impacts. Even headwater catchments are experiencing a drastic increase in water scarcity. In order to avoid water conflicts with a growing word population, collective water management is necessary in the future
The aims of this case study are to assess water quality in a small, forested mountain catchment i... more The aims of this case study are to assess water quality in a small, forested mountain catchment in the Black Forest, forming part of a National Park and Natura 2000 zone. Field work was carried out in the catchment of the Seebächle torrent, a small headwater basin of the River Acher, a confluent of the Rhine, in Southern Germany between late winter and early summer of 2018. The catchment has a diverse natural setting of water bodies, including springs, torrents, and a lake, and is impacted by anthropogenic activities such as summer tourism, winter sports, two quarries, road traffic, and an isolated construction site. Physio-chemical and bacterial water samples were obtained at 10 measurement sites, including a spring, a lake (Mummelsee), a fountain, artificial and natural snow on and next to a ski run (Seibelseckle), artificial ditches and parking lots draining the ski run, and the Seebächle torrent above two granite mines. Samples were either taken directly on site or analyzed in c...
Während unter dem Projekttitel „Wurmberg 2015“ der massive Ausbau der Skianlagen auf dem zur Stad... more Während unter dem Projekttitel „Wurmberg 2015“ der massive Ausbau der Skianlagen auf dem zur Stadt Braunlage (Niedersachsen) gehörenden Wurmberg vorgesehen ist, plant man im nur wenige Kilometer entfernten Schierke – welches seit 2009 der Stadt Wernigerode (Sachsen-Anhalt) angehört – den Aufbau eines neuen Skigebietes am Winterberg. Beide Projekte setzen dabei unter anderem auf den Einsatz von künstlichem Schnee zur Erhöhung der Schneesicherheit. Da eine länderübergreifende Betrachtung der Auswirkungen beider Projekte sowie ein kritisches Assessment der Umsetzbarkeit von Kunstschnee-Konzepten im Harz bislang fehlt, wurde mit einer im Juni/Juli 2012 durchgeführten Analyse der bislang veröffentlichten Planungsunterlagen sowie dreitägigen Geländeuntersuchungen im Juli 2012 der Versuch unternommen, eine Wissensbasis für eine derartige Betrachtung zu schaffen. Die ersten – und vorläufigen – Ergebnisse dieser Untersuchung sollen im Rahmen dieses Thesenpapiers zusammengefasst und kurz anal...
The dynamics of single cobbles was studied in the alpine river Lainbach using the Magnetic Tracer... more The dynamics of single cobbles was studied in the alpine river Lainbach using the Magnetic Tracer Technique (MATT) and radiotransmitters (PETSY = PEbble Transmitter SYstem). Our measurements were based on the approach of H.A. Einstein (1937) determining total travel length of single particles during a flood and different step lengths and rest periods of radio tacked cobbles. Special studies were undertaken to continuously measure lift and shear forces at the beginning of erosion of a coarse sphere using the CObble Satellite SYstem (COSSY). The main results of the COSSY investigations support the theories of H.A. Einstein suggesting that shear forces are dominant for erosion only when the particle is situated on the river bed. When the particle is level with its neighbouring particles, the dominant force is lift and erosion occurs only in cases when lift is about twice as great as shear. Step lengths of the PETSY cobbles was studied both in the laboratory and in the field. In contrast to the proposals of H.A. Einstein, the best approach to describe step lengths distribution is by a Gamma function. The rest periods in between the movements are best described by an e-function. The model of single particle transport was developed on the basis of these results. What must be known in addition are the geomorphic properties of the related mountain rivers. In a step pool system the probabilities of accretion are e.g. far higher in the pool. The results of the model were tested against the results of the observed transport lengths of the MATT tracered material.
Abstract,The dynamics,of a catastrophic flood/multiple debris flow on 30 June 1990 was,reconstruc... more Abstract,The dynamics,of a catastrophic flood/multiple debris flow on 30 June 1990 was,reconstructed along a 2 km stretch of the River Schmiedlaine. The upper bedrock reach was mainly subject to sediment transport and erosion, giving way to an erosionally and depositionally interactive boulder-bed reach with confined bedrock meanders,and finally to a well-sorted purely,aggradational,braided,reach. Sediment was delivered from several major slumps and broken check dams, combined with two major debris flows. Resulting deposition consisted of logjams, levees and small end lobes. During the flood's rising limb, flows were highly viscous and hyperconcentrated, with flood-water reworking following near the end. Reconstruction of the flood maximum,allowed determination of varying velocities and flood mechanics. Up to 1 m of vertical water level difference occurred in areas of high stream curvature. Flood power, bed resistance and bed friction varied markedly according to gradient and s...
Alp-Water-Scarce is a European project on Water Management Strategies against Water Scarcity in t... more Alp-Water-Scarce is a European project on Water Management Strategies against Water Scarcity in the Alps funded by the Alpine Space programme as part of the "European Territorial Cooperation" scheme. The main challenges of this project are to create local Early Warning Systems against Water Scarcity in the Alps. This system will be based on sound, long-term monitoring and modeling and anchored strongly and actively within a Stakeholder Interaction Forum linked across comparative and contrasting regions across the Alps. The Early Warning System is based on the linkage and improvement of field monitoring and assemblage of qualitative and quantitative data derived both from natural water reservoirs as well as from anthropogenic water use in 28 selected pilot regions selected in France, Italy, Austria, Slovenia and Switzerland. These range across different altitudinal and climatological zones, from humid to semi-arid and include inner alpine dry valleys as well as pre-alpine r...
Bereits heute hängt mehr als die Hälfte der Weltbevölkerung am Tropf der Gebirgs-Wassertürme. Die... more Bereits heute hängt mehr als die Hälfte der Weltbevölkerung am Tropf der Gebirgs-Wassertürme. Die Wassertürme leiden jedoch nicht nur unter dem Klimawandel, sondern zunehmend auch unter den loka- len Eingriffen der Menschen. Selbst die Oberläufe der Einzugsgebiete sind von einer drastischen Zunahme an Wasserknappheit betroffen. Um Wasserkonflikte bei wachsender Weltbevölkerung zu vermeiden ist zukünftig kollektives Wassermanagement erforderlich. <em><strong>Mountains: Water towers for a growing world population:</strong></em> Already today more than half of the world's population is on the drip of the mountain water towers. However, these water towers are not only suffering from climate change but also increasingly from local anthropogenic impacts. Even headwater catchments are experiencing a drastic increase in water scarcity. In order to avoid water conflicts with a growing word population, collective water management is necessary in the future
The aims of this case study are to assess water quality in a small, forested mountain catchment i... more The aims of this case study are to assess water quality in a small, forested mountain catchment in the Black Forest, forming part of a National Park and Natura 2000 zone. Field work was carried out in the catchment of the Seebächle torrent, a small headwater basin of the River Acher, a confluent of the Rhine, in Southern Germany between late winter and early summer of 2018. The catchment has a diverse natural setting of water bodies, including springs, torrents, and a lake, and is impacted by anthropogenic activities such as summer tourism, winter sports, two quarries, road traffic, and an isolated construction site. Physio-chemical and bacterial water samples were obtained at 10 measurement sites, including a spring, a lake (Mummelsee), a fountain, artificial and natural snow on and next to a ski run (Seibelseckle), artificial ditches and parking lots draining the ski run, and the Seebächle torrent above two granite mines. Samples were either taken directly on site or analyzed in c...
Während unter dem Projekttitel „Wurmberg 2015“ der massive Ausbau der Skianlagen auf dem zur Stad... more Während unter dem Projekttitel „Wurmberg 2015“ der massive Ausbau der Skianlagen auf dem zur Stadt Braunlage (Niedersachsen) gehörenden Wurmberg vorgesehen ist, plant man im nur wenige Kilometer entfernten Schierke – welches seit 2009 der Stadt Wernigerode (Sachsen-Anhalt) angehört – den Aufbau eines neuen Skigebietes am Winterberg. Beide Projekte setzen dabei unter anderem auf den Einsatz von künstlichem Schnee zur Erhöhung der Schneesicherheit. Da eine länderübergreifende Betrachtung der Auswirkungen beider Projekte sowie ein kritisches Assessment der Umsetzbarkeit von Kunstschnee-Konzepten im Harz bislang fehlt, wurde mit einer im Juni/Juli 2012 durchgeführten Analyse der bislang veröffentlichten Planungsunterlagen sowie dreitägigen Geländeuntersuchungen im Juli 2012 der Versuch unternommen, eine Wissensbasis für eine derartige Betrachtung zu schaffen. Die ersten – und vorläufigen – Ergebnisse dieser Untersuchung sollen im Rahmen dieses Thesenpapiers zusammengefasst und kurz anal...
The dynamics of single cobbles was studied in the alpine river Lainbach using the Magnetic Tracer... more The dynamics of single cobbles was studied in the alpine river Lainbach using the Magnetic Tracer Technique (MATT) and radiotransmitters (PETSY = PEbble Transmitter SYstem). Our measurements were based on the approach of H.A. Einstein (1937) determining total travel length of single particles during a flood and different step lengths and rest periods of radio tacked cobbles. Special studies were undertaken to continuously measure lift and shear forces at the beginning of erosion of a coarse sphere using the CObble Satellite SYstem (COSSY). The main results of the COSSY investigations support the theories of H.A. Einstein suggesting that shear forces are dominant for erosion only when the particle is situated on the river bed. When the particle is level with its neighbouring particles, the dominant force is lift and erosion occurs only in cases when lift is about twice as great as shear. Step lengths of the PETSY cobbles was studied both in the laboratory and in the field. In contrast to the proposals of H.A. Einstein, the best approach to describe step lengths distribution is by a Gamma function. The rest periods in between the movements are best described by an e-function. The model of single particle transport was developed on the basis of these results. What must be known in addition are the geomorphic properties of the related mountain rivers. In a step pool system the probabilities of accretion are e.g. far higher in the pool. The results of the model were tested against the results of the observed transport lengths of the MATT tracered material.
Abstract,The dynamics,of a catastrophic flood/multiple debris flow on 30 June 1990 was,reconstruc... more Abstract,The dynamics,of a catastrophic flood/multiple debris flow on 30 June 1990 was,reconstructed along a 2 km stretch of the River Schmiedlaine. The upper bedrock reach was mainly subject to sediment transport and erosion, giving way to an erosionally and depositionally interactive boulder-bed reach with confined bedrock meanders,and finally to a well-sorted purely,aggradational,braided,reach. Sediment was delivered from several major slumps and broken check dams, combined with two major debris flows. Resulting deposition consisted of logjams, levees and small end lobes. During the flood's rising limb, flows were highly viscous and hyperconcentrated, with flood-water reworking following near the end. Reconstruction of the flood maximum,allowed determination of varying velocities and flood mechanics. Up to 1 m of vertical water level difference occurred in areas of high stream curvature. Flood power, bed resistance and bed friction varied markedly according to gradient and s...
Mountains: Water towers for a growing world population: Already today more than half of the world... more Mountains: Water towers for a growing world population: Already today more than half of the world's population is on the drip of the mountain water towers. However, these water towers are not only suffering from climate change but also increasingly from local anthropogenic impacts. Even headwater catchments are experiencing a drastic increase in water scarcity. In order to avoid water conflicts with a growing word population, collective water management is necessary in the future.
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