Spatial data on catchment characteristics

Attention: SwissTopo has recently changed its coordinate system (see here, migration to be finished by 2016). The resources below might use the old system (6 digits) or the new system (7 digits).

This page lists spatial data that is more or less static, for spatial meteo data, see dedicated page.

Swiss hydrological atlas and Hydromaps:

• Includes information on catchments (text, pdf-maps, shape files and raster data but no time series): see here.
• Attenion: Hydromaps is the successor of the Atlas, which was a printed book. The Atlas sheets  have been made available in pdfs (page copies), in xls sheets and shape files (see "download tab"). The successor Hydrompas is a WebGIS. Any meta data is to be retrieved from the explanation text that comes with the GIS layers (in French: texte explicatif).

All spatial data of Switzerland (wide range of topics):

• can be visualized here: map.geo.admin.ch. ATTENTION: the hydrological regime names are mixed up for the jurassien regimes 11 and 12 (still on 18 Aug 2021), see page on regimes.

Swiss catchments:

• Spatial data set of "official" small subcatchments of all Swiss rivers (see here).
• Spatial data set of Swiss hydrometric gauging station catchments (see here)
• Topographical catchment areas of Swiss waterbodies 2km2 (see here)
• Topographical catchment areas of Swiss waterbodies 40km2 (see here)

The hydrological atlas also contains a database of small subcatchments, as xls file or as shape file (here). These older delimitation comes with some hydrological catchment characteristics, e.g. the slope or the amount of impervious area (see explanation in the corresponding atlas page, pdf).

Swiss river regime types:

• see spatial data set of the FOEN here. ATTENTION: the regime names are mixed up for regimes 11 and 12 see above.

Other spatial data for Switzerland:

• Vector25, SwissTopo, here. Available for research, for EPFL, refer to your ENAC responsible for data download from EPFL GEODATA).

There is currently a beta-version of direct geo data distribution to all members of the ETHZ domain, see here.

• DTM25, Swiss height model (resolution 25x25m), SwissTopo, here. Better resolutions also available. Available for research. For EPFL, refer to your responsible for data download from EPFL GEODATA

• Soil use statistics (resolution 100x100m) from the Swiss Federal Office for Statistics, here (not sure what the distribution rules there are; for EPFL, refer to your responsible for data download from EPFL GEODATA).
  • The 2004/2009 soil use statistics categories are presented here.
  • For certain catchments, the land use statistics are indicated along with the discharge data base, see e.g. for the Dischma river here the entry "land use" at the page bottom.
• Climate regions (NEW): bio-geographic climate regions (from opendata.swiss)
• Location illustrations: if you need a very quick-to-produce map to locate your work, you might want to use map.wanderland.ch where you can produce all kind of maps based on SwissTopo data (useful for non GIS users or if you do not have access to SwissTopo maps).