[GRASSLIST:9567] Re: Global topography

[Joel Peter William Pitt]

Here is the HDR fiel I forgot to attach.

On 12/19/05, Joel Peter William Pitt <joel.pitt at gmail.com> wrote:
> Hi all,
>
> I'm trying to georeference the global topography data here:
>
> ftp://topex.ucsd.edu/pub/global_topo_2min
>
> WIth more info here:
> http://topex.ucsd.edu/WWW_html/mar_topo.html
>
> It comes with hdr and ers files (attached) but GRASS opens the img
> data as unprojected.
>
> I've tried setting the projection and datum manually and then
> importing but I'm just getting myself horribly confused.
>
> I managed to find a file online that defined the MRWORLD projection as:
> MRWORLD:PROJCS["MRWORLD",PROJECTION["Mercator_1SP"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",20000000]]
>
> I also tried manually setting the cell header as per the conversions
> in the GRASSLIST post here:
> http://lists.directionsmag.com/discussion/read.php?f=16&i=1388&loc=0&t=1388
>
> Can anyone help me?
>
> Alternatively, if there is a global topography (including sea floor)
> dataset which is more easily included with correct projection and
> datum then feel free to point me to that.
>
> Much thanks,
> Joel
>
>
>
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