Dear all,
I needed bathymetry data in .xyz format with easting /latitude northing/longitude-depth. How can we extract bathymetry data in .xyz format?
regards
Thank you for your reply,
No, I don't, i want to know how can we extract bathymetry data in .xyz format?
kind regards,
It depend on your uses but a good global XYZ bathymetry source can be found at: http://topex.ucsd.edu/WWW_html/mar_topo.html where you extract a custom grid.
thank you for this suggestion Alain;
i want to apply it in Delft3D Rectangular Grid (RGFGRID) .
In the link that I leave you will find an altimetric and bathymetric data base of the whole world. Successes.
http://topex.ucsd.edu/WWW_html/mar_topo.html
Use https://maps.ngdc.noaa.gov/viewers/wcs-client/ , it is Etopo1, in XYZ.
Hi, Hind!
You can download bathymetric data of all world in National Geophysical Data Center. the site adress:
https://www.ngdc.noaa.gov/mgg/bathymetry/relief.html
Regards, Helio Villena
I am also recomend GeomapApp or Nautic Charts for example NAVIONIC.
Many sites are available which providing free air gravity and topographic data for particular area just by giving boundary coordinates and you can extract files in desire format. Many good reference are given by the above authors..
http://topex.ucsd.edu/cgi-bin/get_data.cgi
http://www.gebco.net/data_and_products/gridded_bathymetry_data/
https://www.ngdc.noaa.gov/mgg/gravity/
Thank you Sachin, now and with your suggestion, I can download my bathymetry of any desired formats.
thank you of all,
Data from where? Which scale? Depending upon the scale you need you can find it on internet from links, as someone already shared. You can also do the survey as I'm doing right now... as you see.
https://goo.gl/photos/UuSAQ4rh2Vw119MF7
Yes i like to do like you Luiz, but with the lack of Materials, we can't doing.
Extract the points (x,z,y) or isoline is easy proyecting your nautic charts of your interest section over your map on the wall helped with a acetate projector (your map must be fixed on the wall before). After you must calculate de new scale (1: ). I did this method for refraction analysis on the coast. Or digitize the point directly from electronic charts and do an excel sheet, after with a program do the isolines (Surfer, SigmaPlot, etc)
[email protected] (show me your interest are maybe I can help you)
Hi Hind, you can visit the NOAA website (https://maps.ngdc.noaa.gov/viewers/wcs-client/) to extract bathymetry data in .xyz format.
If you use R then the following package is very useful.
https://www.rdocumentation.org/packages/marmap/versions/1.0.5
by the function getNOAA.bathy (lon1,lon2,lat1,lat2) you can get bathy data from a specific location.
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