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Ice Reservoir

  • Markus WeberEmail author
  • Monika Prasch
  • Michael Kuhn
  • Astrid Lambrecht
  • Wilfried Hagg

Abstract

In the alpine regions of the Danube drainage basin, glaciers play a key role in the water balance of the headwater regions. They not only contain an important reservoir of freshwater, but they also have a regulating effect on run-off in alpine rivers. To calculate ice melt in a numerical model, information about surface topography and ice thickness must be provided at the highest possible resolution. Ninety-two percent of the glaciers within the Upper Danube have surface areas that are smaller than the 1 × 1 km2-grid (proxel) used for DANUBIA, and these glacial areas’ basin can be subdivided into 556 subareas, which are distributed over 1,196 proxels within the limits of the DANUBIA model.

For each proxel, an area-altitude distribution was prepared using the available digital glacial boundaries and a high-resolution digital elevation model from the glacial inventory of Austria, the Swiss glacier inventory and the Bavarian Glacier project. Additional for each partial area value for the thickness of the ice in the year 2000 was determined either by measurements or by estimation.

In Map 12.1, the water equivalent of the entire ice mass is calculated for the area of a proxel and distributed evenly across the area. The values are thus directly comparable to other hydrological variables such as the total annual precipitation or discharge rate. The value for the potential meltwater contribution distributed across the entire drainage basin of 213 mm is approximately comparable to the precipitation in the basin for the two summer months.

Keywords

GLOWA-Danube Danube basin Glacier Ice thickness Glacier inventory 

References

  1. Bahr DB, Meier MF, Peckham SD (1997) The physical basis of glacier volume-area scaling. J Geophys Res 102:20,355–20,362. doi: 10.1029/97 JBO1696 CrossRefGoogle Scholar
  2. Fischer A, Kuhn M (2013) Ground-penetrating radar measurements of 64 Austrian glaciers between 1995 and 2010. Ann Glaciol 54(64):179–188. doi: 10.3189/2013AoG64A108 CrossRefGoogle Scholar
  3. Hagg W (2006) Digitale Aufbereitung historischer Gletscherkarten in Bayern. Mitteilungen der Geographischen Gesellschaft München 88:67–88Google Scholar
  4. Hagg W, Mayer C, Mayr E, Heilig A (2012) Climate and glacier fluctuations in the Bavarian Alps in the past 120 years. Erdkunde 66:121–142CrossRefGoogle Scholar
  5. Jarvis A, Reuter HI, Nelson A, Guevara E (2008) Hole-filled seamless SRTM data V4. International Centre for Tropical Agriculture (CIAT). http://srtm.csi.cgiar.org. Accessed 19 Sept 2014
  6. Lambrecht A, Kuhn M (2007) Glacier changes in the Austrian Alps during the last three decades, derived from the new Austrian Glacier inventory. Ann Glaciol 46:177–184. doi: 10.3189/172756407782871341 CrossRefGoogle Scholar
  7. Paterson WSB (1981) The physics of glaciers. Pergamom Press, Oxfrod/New YorkGoogle Scholar
  8. Paul F, Kääb A, Maisch M, Kellenberger T, Haeberli W (2002) The new remote-sensing-derived Swiss glacier inventory. I. Methods. Ann Glaciol 34:355–361CrossRefGoogle Scholar
  9. Rabus B, Eineder M, Roth A, Bamler R (2003) The shuttle radar topography mission- a new class of digital elevation models acquired by spaceborne radar. ISPRS J Photogramm 57:241–262CrossRefGoogle Scholar
  10. Span N, Fischer A, Kuhn M, Massimo M, Butschek M (2005) Radarmessungen der Eisdicke Österreichischer Gletscher. Band 1: Messungen 1995 bis 1998. Österreichische Beiträge zu Meteorologie und Geophysik, 33, Vienna, AustriaGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Markus Weber
    • 1
    Email author
  • Monika Prasch
    • 2
  • Michael Kuhn
    • 3
  • Astrid Lambrecht
    • 1
  • Wilfried Hagg
    • 4
  1. 1.Commission for Geodesy and Glaciology of the Bavarian Academy of Sciences and HumanitiesMunichGermany
  2. 2.Department of GeographyLudwig-Maximilians-Universität München (LMU Munich)MunichGermany
  3. 3.Institute of Meteorology and GeophysicsUniversity of InnsbruckInnsbruckAustria
  4. 4.Department of Earth and Environmental SciencesUniversità degli Studi di Milano-BicoccaMilanItaly

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