Bathymetry

Q&A
1

Dear all,

I am trying to plot just the bathymetry, employing @earth_gebco in a similar way to the topography with @earth_relief but it doesnt work and I am not sure why. Any suggestion?

#gmt grdcut @earth_relief_02m -R$R -Gdepth_pixel.nc
gmt grdcut @earth_gebco_06m -R$R -Gdepth_pixel.nc

2

I think you forgot to tell us how it did not work, and our shrink is off today so no good guesses, even guessing what GMT version you are using.

3

Why people post things that cannot be reproduced?

4

Oops sorry. I am using gmt6 and I have this kind of error
grdcut [ERROR]: Libcurl Error: HTTP response code said error

grdcut [ERROR]: You can turn remote file download off by setting GMT_DATA_SERVER_LIMIT = 0.

grdcut [ERROR]: Libcurl Error: HTTP response code said error

grdcut [ERROR]: You can turn remote file download off by setting GMT_DATA_SERVER_LIMIT = 0.

grdcut [ERROR]: File earth_gebco_06m not found

5

Something with your connection. It works for me

C:\v>grdcut @earth_gebco_06m -R-10/0/35/45 -Glixo.grd
grdcut [NOTICE]: Remote data courtesy of GMT data server oceania [http://oceania.generic-mapping-tools.org]

grdcut [NOTICE]: GEBCO Earth Relief 2023 at 6x6 arc minutes reduced by Gaussian Cartesian filtering (11.2 km fullwidth) [GEBCO Compilation Group, 2023 GEBCO 2023 Grid].
grdcut [NOTICE]:   -> Download grid file [7.3M]: earth_gebco_06m_g.grd
6

Thanks @Joaquim. But why then if I replace @earth_gebco with @earth_relief I don’t have this issue.

7

GMT 6 might mean 6.0, 6.1, 6.2, 6.3, 6.4, and building 6.5 from git master. So cannot offer anything that Joaquim hasn’t stated.