[GIS] Determining correct Coordinate System DHDN Bessel 1841

coordinate system

I am working on a data set and coordinates are supposed to be in DHDN Bessel 1841.
Have a look here: https://www.pegelonline.wsv.de/gast/stammdaten?pegelnr=2330013

I created a shapefile with the cordinates. But I need to define the projection. I am using qgis and when I checked DHDN options, there were a lot like DHDN/ Gauss-Kruger 2,3,4,5 or DHDN/ 3-degree gauss zone 1,2,3,4,5. I am confused which one to use.

Some insight will be of great help.

Thanks

NS

Best Answer

You may want to look at the EPSG Geodetic Parameter Dataset in its online registry form. You can search DHDN and see what projected coordinate reference systems are based upon it. Some quick notes. The first set you listed are 6-degree wide zones. The 2nd set are 3-degree wide zones. The listed coordinates are probably in northing,easting order. That implies to me that it's zone 3, but whether the 6- or 3-degree is the question. Northing values should be around 5million.

Disclaimer: I'm on the subcommittee that maintains the registry.

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