Last updated
December 31, 1982
Terms of use
Open use. Must provide the source. Use for commercial purposes requires permission of the data owner.

Description

The geothermal map shows the thermal energy that is produced in the subsurface and traverses the Earth's surface within an area of 1 m2. The heat itself is released in the Earth's crust (around 30 km thick) generally by radioactive decay processes. On average, the heat flow in Switzerland is around 90 mW/m2. The highest figures are found in northern Switzerland and the lowest in the Alps/Jura. Differences are caused by deep groundwater circulating in permeable rock strata. The heat flow data is calculated from the temperature gradient (average value approx. 30 K/km) and heat conductivity of the rock (average value approx. 3 W/m/K). Paper map: Ph. Bodmer, 1982. Vector map: 2001.

Resources

Additional information

Identifier
2d8174b2-8c4a-44ea-b470-cb3f216b90d1@bundesamt-fur-landestopografie-swisstopo
Issued date
December 31, 1982
Modified date
-
Publishers
Bundesamt für Landestopografie
Contact points
info@swisstopo.ch
Languages
Language independent
Further information
Geologischer Datenviewer
Landing page
http://www.sgpk.ethz.ch/opencms/opencms/publications/pub_geoph_maps/
Temporal coverage
-
Update interval
Irregular
Metadata Access
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