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Borehole logging in alpine permafrost, upper Engadin, Swiss Alps
(1992)Permafrost and Periglacial ProcessesIn two boreholes through Alpine permafrost, borehole geophysical measurements were performed. At the borehole through rock glacier Murtèl-Corvatsch, where cores were taken, the main difficulty was to fill up the hole with water. Consequently, only some of the logging methods could be applied. Nevertheless, gamma-gamma log (and qualitatively also gamma-ray) made it possible to obtain density and to calculate ice content. At the ...Journal Article -
Evidence of intrapermafrost groundwater flow beneath an active rock glacier in the Swiss Alps
(1992)Permafrost and Periglacial ProcessesTemperature measurements in borehole 2/1987 through rock glacier Murtèl Corvatsch revealed a very high mean heat flow of 150 mW/m2. Between 52 m and 56 m depth, seasonal variations are observed; above and underneath this zone temperatures have remained negative during the last 4 years. In addition, a zero curtain effect at the same depth hints at the existence of a water aquifer which is active mainly in summer. This phenomenon is interpreted ...Journal Article -
Permafrost research sites in the Alps: Excursions of the Int. Workshop on Permafrost and Periglacial Environments in Mountain Areas
(1992)Permafrost and Periglacial ProcessesJournal Article -
Permafrost occurrence from BTS measurements and climatic parameters in the eastern Swiss Alps
(1992)Permafrost and Periglacial ProcessesRelations between climatic parameters such as temperature and potential direct solar radiation (PR) and measured bottom temperatures of the snow cover (BTS) as indicator of permafrost occurrence were investigated. No significant correlation exists between mean annual air temperature (MAAT) and BTS. The high correlation found between PR and BTS may help to develop a model for predicting permafrost distribution in mountain areas. This ...Journal Article -
Der Wasserhaushalt des Bodensees. Einfluss der Entnahme des Zwechverbandes Bodensee-Wasserversorgung (BWV) im Lichte anderer Einflüsse
(1992)GWA: Gas, Wasser, AbwasserJournal Article -
Sanierungsprognosen für das Nordbecken des Luganersees
(1992)GWA: Gas, Wasser, AbwasserJournal Article -
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Purification and characterization of an exopolygalacturonase produced by Venturia inaequalis , the causal agent of apple scab
(1992)Physiological and Molecular Plant PathologyJournal Article -