printlogo
http://www.ethz.ch/index_EN
Institute for Atmospheric and Climate Science
 
print
  

Energy Balance over Seasonal Snow Cover in Alpine Climate

Upcoming events

6 Events found:

  1. Mon 01. Dec. 2014 16:15 : ETH Zentrum, CAB G 11
    Prof. Daniel J. Cziczo : Understanding the dominant sources and mechanisms of cirrus cloud formation through in situ measurements
    Kolloquium Atmos. & Klima (Kolloquium)
    Details iCal
  2. Fri 05. Dec. 2014 10:00 : ETH Zentrum, CHN P 12
    Maria Hakuba : Solar absorption in the atmosphere - Improved estimates from surface and satellite observations
    Special Event (PhD Defense)
    Details iCal
  3. Mon 08. Dec. 2014 16:15 : ETH Zentrum, CAB G 11
    Dr. Albert Klein Tank : Extremes in a changing climate; recent progress of the WCRP/WMO expert team on climate change detection and indices ETCCDI
    Kolloquium Atmos. & Klima (Kolloquium)
    Details iCal
  4. Tue 09. Dec. 2014 14:00 : ETH Zentrum, CHN L 17.1
    Nikolina Ban : Convection-Resolving Climate Simulations for the Greater Alpine region: Development, Evaluation and Climate Projections
    Special Event (PhD Defense)
    Details iCal
  5. Wed 10. Dec. 2014 14:00 : ETH Zentrum, CHN P 12
    Dr. Elizabeth Kendon : The changing character of rainfall in a convection-permitting climate model
    Special Event (Extraordinary Seminar)
    Details iCal
  6. Mon 15. Dec. 2014 16:15 : ETH Zentrum, CAB G 11
    Dr. Stephan Pfahl : The relevance of cyclones and moisture supply for midlatitude precipitation extremes
    Kolloquium Atmos. & Klima (Kolloquium)
    Details iCal

ETH-Klimablog

Klimablog_Logo

Das IAC bloggt auf dem ETH-Klimablog, der Informationsplattform der ETH Zürich zum Klimawandel. Mehr auf www.klimablog.ethz.ch.

Energy balance measurements over a seasonal snow cover have been performed during spring 1992 and 1993 near Davos in the eastern Swiss Alps. The measurements show a clear dominance of the net radiation as an energy source during the snowmelt period. The turbulent fluxes are less important in average, but may be larger in magnitude than net radiation on selected days (e.g. foehn periods). For all the energy fluxes, parameterizations based on automatic weather station data only, were verified against these measurements and against observed ablation. These parameterizations were used to determine the spatial distribution of the energy balance in the Davos area. For the parameterization of longwave radiation from terrain, for the albedo and for the turbulent fluxes new approaches are developped. The proposed model allows to determine the energy balance over the snow
cover in complex topography in different expositions and altitudes, if some simple meteorological measurements are available in the area of interest. The model is now tested in combination with a snow-model at Weissfluhjoch.

Contact: Atsumu Ohmura

 

Wichtiger Hinweis:
Diese Website wird in älteren Versionen von Netscape ohne graphische Elemente dargestellt. Die Funktionalität der Website ist aber trotzdem gewährleistet. Wenn Sie diese Website regelmässig benutzen, empfehlen wir Ihnen, auf Ihrem Computer einen aktuellen Browser zu installieren. Weitere Informationen finden Sie auf
folgender Seite.

Important Note:
The content in this site is accessible to any browser or Internet device, however, some graphics will display correctly only in the newer versions of Netscape. To get the most out of our site we suggest you upgrade to a newer browser.
More information

© 2014 ETH Zurich | Imprint | Disclaimer | 25 January 2005
top