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Sohlenbelüftung gegen Kavitationserosion in Schussrinnen
(1984)WasserWirtschaftUrsache und Auswirkung der Kavitations-Erosion in Schussrinnen werden dargestellt. Sohlenbelüfter werden als Schutzmassnahme vorgestellt und ein neues Bild des Fliessverhaltens gegeben. Auf Hinweise für die Praxis wird ein weiteres Schwergewicht gelegt. Ungelöste Fragen physikalischer Natur werden erwähnt.Journal Article -
Mathematische Vorhersage von barotropen und baroklinen Prozessen im Zürcher und Luganersee
(1984)Vierteljahrsschrift der Naturforschenden Gesellschaft in ZürichJournal Article -
The Carbon Containing Component of the Los Angeles Aerosol: Source Apportionment and Contributions to the Visibility Budget
(1984)Journal of the Air Pollution Control AssociationJournal Article -
Trübeströme in Seen: Sauerstoffeintrag durch grundnah eingeschichtetes Flusswasser
(1984)Schweizerische Zeitschrift für HydrologieNear-bottom current measurements in the main delta areas of the Walensee (Switzerland) and of Lake Constance yielded evidence that sporadic high influxes of clastic suspensions caused by flood stage discharges of tributaries generate turbidity underflows. Turbid suspensions plunge down the delta front as hyperpycnal inflows with speeds up to 130cm/s. These periodic intrusions of well oxygenated river water may influence the oxygen budget ...Journal Article -
Einsiedeln – das Dorf im Schatten des Klosters. Zu den Ansätzen einer städtischen Architektur im späten 19. Jahrhundert
(1984)Unsere KunstdenkmälerJournal Article -
Electrical resistivity soundings of glacier beds: A test study on Grubengletscher, Wallis, Swiss Alps
(1984)Journal of GlaciologyElectrical resistivity sounding, using electrodes which are lowered directly to the ice–rock interface in bore holes, is proposed as a technique for studying the exact position of glacier beds, as well as their lithological characteristics. A test study is described on Grubengletscher, a partially cold Alpine glacier in Switzerland. Results of soundings along a 400m long profile indicate that previous depth determinations, based on radio ...Journal Article -
On pseudo-uniform flow in open channel hydraulics
(1984)Acta MechanicaThe differential equation that governs the longitudinal variation of the surface profileh(x) in steady plane channel flow is qualitatively discussed for the case of pseudo-uniform flow states. The solutions are either of the cnoidal or solitary wave type. It is shown that, among all cnoidal waves, solitary waves have minimum energy head. Further, surface profiles mustbreak whenever the Froude-number exceeds the value2–√ (which is close ...Journal Article -
Formation and effects of alternate bars
(1984)Journal of Hydraulic EngineeringMajor river regulation works have often resulted in alternate bar formation. Experimental work is described which provides more information on this phenomenon. Alternate bar formation is closely associated with meandering, inferring that alternate bar formation is caused by flow induced periodic disturbances of the horizontal velocity profile. Based on these considerations a criterion has been developed which defines the upper limit of ...Journal Article -
Geothermal effects of 18 ka BP ice conditions in the Swiss plateau
(1984)Annals of GlaciologyQuaternary surface temperature and ice conditions have lowered today’s temperatures in the uppermost 1 to 2 km of the Earth’s crust in the Swiss plateau by about 5 to 6°C in regions of formerly temperate glacier beds, and these effects were even greater on temperatures in formerly periglacial regions. Effects of latent heat exchange during the formation and thawing of ice-rich permafrost in high-porosity sediments enhance the effects of ...Journal Article -
Modelling temperature distribution in alpine glaciers
(1984)Annals of GlaciologyModelling temperature distribution in non-temperate mountain glaciers presents problems not normally encountered when modelling ice sheets or ice shelves. These problems are mainly concerned with numerical instabilities caused by the high, nonuniform gradients of various input parameters (geometry, mass balance, surface temperature, and flow velocity). Steady-state solutions must be used to check and complete data sets, before using models ...Journal Article