Hi guys, I am having trouble exporting any Grass raster to netCDF format and preserving the z-values.
Ex:
~> r.info GEBCO2014_Atlantic_Canada_100m -g | grep datatype
datatype=DCELL
~> g.region -p
projection: 99 (unnamed)
zone: 0
datum: wgs84
ellipsoid: wgs84
north: 838800
south: -313000
west: -4400
east: 1225500
nsres: 100
ewres: 100
rows: 11518
cols: 12299
cells: 141659882
~> r.out.gdal in=GEBCO2014_Atlantic_Canada_100m format=netCDF out=GEBCO2014_Grand_Banks_100m.nc type=Float64 --v --o
Exporting to GDAL data type: Float64
Checking GDAL data type and nodata value…
100%
Using GDAL data type
Exporting raster data to netCDF format…
100%
r.out.gdal complete. File <GEBCO2014_Grand_Banks_100m.nc> created.
Now, checking the output .nc file with GMT’s grdinfo:
~> grdinfo GEBCO2014_Grand_Banks_100m.nc
GEBCO2014_Grand_Banks_100m.nc: Title: GDAL Band Number 1
GEBCO2014_Grand_Banks_100m.nc: Command: Wed Dec 04 15:25:18 2019: GDAL Create( GEBCO2014_Grand_Banks.nc, … )
GEBCO2014_Grand_Banks_100m.nc: Remark:
GEBCO2014_Grand_Banks_100m.nc: Pixel node registration used [Cartesian grid]
GEBCO2014_Grand_Banks_100m.nc: Grid file format: nd = GMT netCDF format (64-bit float), CF-1.7
GEBCO2014_Grand_Banks_100m.nc: x_min: -4400 x_max: 1225500 x_inc: 100 name: n_columns: 12299
GEBCO2014_Grand_Banks_100m.nc: y_min: -313000 y_max: 838800 y_inc: 100 name: n_rows: 11518
GEBCO2014_Grand_Banks_100m.nc: z_min: 0 z_max: 0 name: GDAL Band Number 1
GEBCO2014_Grand_Banks_100m.nc: scale_factor: 1 add_offset: 0
GEBCO2014_Grand_Banks_100m.nc: format: classic
Zeros for the z-range. gdalinfo also fails to reveal any z-range info. I’m not sure what I’m doing wrong here.
System Info:
GRASS version: 7.8.1 (installed from UbuntuGIS-unstable PPA)
Code revision: exported
Build date: 2019-12-03
Build platform: x86_64-pc-linux-gnu
GDAL: 3.0.2
PROJ: 6.2.1
GEOS: 3.8.0
SQLite: 3.22.0
Python: 3.6.9
wxPython: 4.0.1
Platform: Linux-5.3.0-24-generic-x86_64-with-LinuxMint-19.2-tina
Any pointers most appreciated!
~ Eric.
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Eric Patton
GPG ID: rsa4096/0xB72AE021
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