[Qgis-user] Geostats tool (bathymetry)

[pcreso at pcreso.com]

I suggest yo look at using GMT to work with these data.

http://gmt.soest.hawaii.edu

turn both datasets into DEM's & compare them (subtract one from the other to return an anomaly grid). You can do some of this sort of work with GDAL/QGIS, but GMT is optimised for bathymetric data - one of the few GIS tools that is used more in aquatic (& geological) domains than typical terrestrial GIS.


 
 2013/7/17 image <lcelati at latitude-geosystems.com>
 
 Dear  all,
 
  
 I have 2 bathymetric data : one raster (generated by a black
 box from an
 
 image satellite Kompsat2 multispectral) AND a vector data
 (our reference)
 
 with a field informing bathymeric values.
 
 So we would like comparate these 2 data with a geostats
 tool. Is there a
 
 tool in qgis to do that (grass? sextante? taudem? saga?
 Other tool?).
 
 Moreover, we have a excel file with several rows with
 several columns
 
 informing  : bathy values (reference+ generated data)/
 Coordinates (image
 
 pixel row column).
 
 
 
 If you can tell me what availabale tools could be
 interesting for me?
 
 
 
 Thank you very much.
 
 
 
 Regards.
 
 
 
 
 
 
 
 
 
 
 
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