[gdal-dev] Using gdalwarp with HDF files- problem reading proejction

[Joaquim Luis]

António,

I don't know what is a "WGS 84 Spherical Radius". WGS84 is an ellipsoid 
with Equatorial radius of 6378.137  km  (flattening 1/298.2572235630)

Why you are getting that info? Well, that's because it is encoded in the 
file (and apparently not the one you expected).

Joaquim

> Greetings
>
> I have a dataset (in HDF) and I need to convert its projection. When I 
> do gdalinfo I get this information:
> Coordinate System is:
> GEOGCS["Unknown datum based upon the Clarke 1866 ellipsoid",
>    DATUM["Not specified (based on Clarke 1866 spheroid)",
>        SPHEROID["Clarke 1866",6378206.4,294.9786982139006,
>            AUTHORITY["EPSG","7008"]]],
>    PRIMEM["Greenwich",0],
>    UNIT["degree",0.0174532925199433]]
> Origin = (-10.001388888888888,45.001388888888890)
> Pixel Size = (0.002777777777778,-0.002777777777778)
>
> But this is odd. I was suppose to get Plate-Carrée with geographic 
> Lat/Long and Ref ellipsoid
> WGS 84 Spherical Radius= Equatorial Radius=Re= 6378,14km)
>
> Why am I no obtaining this information? Nevertheless, has this any 
> impact or shall I use *-s_srs and define it do Plate Carée (EPSG:??) ?
> *Thanks
> Antonio
>
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