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swissbathy3d

Technical Details

Structure
Data are only available in the full ground resolution (see technical details by lake) in the 2 following data formats :

  • ASCII X,Y,Z single space
  • ESRI ASCII GRID
     

Data are tiled in tiles of 1 km2. Only complete tiles are delivered. The filename of the delivered files contains the X and Y coordinates in kilometers of the south-west corner of tiles.

Altimetric accuracy : +/- 0.5 m (1 sigma). This accuracy strongly depends on the water depth. It gets better to 0.1-0.2 m for the shallowest parts et can reach 1 m for the deepest parts.

Coordinates system :  LVN95 – LN02

Technical details by lake

Data coverage : The entire lake and a part of the shores are covered. A few holes in the data have been let empty (no data).

Available area : 7 km2

Ground resolution : 1 m

Data status : 2015

Data coverage : The entire lake and a part of the shores are covered.

Available area : 45 km2

Ground resolution : 1 m

Data status : 2015 - 2016

Data coverage : The entire lake and a part of the shores are covered. A few holes in the data have been let empty (no data).

Available area : 605 km2

Ground resolution : 3 m

Data status : 2013 - 2015

Data coverage : In the French part of the lake, only the areas with a minimal water depth of about 5 m are covered. In the Swiss part, the entire lake is covered.

Available area : 576 km2

Ground resolution : 2 m

Data status : 2012 - 2016

Data coverage : Only the areas with a minimal water depth of about 5 m are covered. A few holes in the data have been let empty (no data).

Available area : 107 km2

Ground resolution : 1 m

Data status : 2007 - 2014

Data coverage : Only the areas with a minimal water depth of about 5 m are covered.

Available area : 19 km2  

Ground resolution : 1 m

Data status : 2014 - 2016

Data coverage : Only the areas with a minimal water depth of about 5 m are covered.

Available area : 178 km2  

Ground resolution : 1 m

Data status : 2014 - 2016

Data coverage : Only the areas with a minimal water depth of about 5 m are covered.

Available area : 49 km2  

Ground resolution : 1 m

Data status : 2015

Data coverage : The entire lake and a part of the shores are covered. A few holes in the data have been let empty (no data).

Available area : 39 km2 

Ground resolution : 1 m

Data status : 2016

Data coverage : Only the main lake between Zurich and Rapperswil is covered (no data on the Obersee). Only the areas with a minimal water depth of about 5 m are covered. A few holes in the data have been let empty (no data).

Available area : 61 km2 

Ground resolution : 1 m

Data status : 2014

Availability

Sample Data

The sample data show their type and format. They are free of charge and can be used for test purposes only. It is not allowed to include them in a product.