On Feb 24, 2:54=A0pm, Paul Levine <paul.lev...@[EMAIL PROTECTED]
> wrote:
> On 2008-02-22 09:48:38 -0800, mankoff <mank...@[EMAIL PROTECTED]
> said:
>
>
>
> >>> Polar Stereographic projection with 71=3DB0S as the latitude of true
s=
cale
> >>> and 0=3DB0E as the central meridian.
>
> > ;; this is the projection the data is distributed on
> > stereo =3D map_proj_init('Polar Stereographic', /GCTP, DATUM=3D8, $
> > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0CENTER_LONGITUDE=3D0,
CEN=
TER_LATITUDE=3D-90)
>
> You must change the CENTER_LATITUDE to -71
>
> Polar stereographic projections are free of aereal distortion at only
> one latitude, with aereal distortion increasing both north and south of
> this latitude. =A0In the case of your data, that latitude is 71 south.
=A0=
> FWIW, the northern-hemisphere sea ice data distributed by the NSIDC is
> centered at 70 north.
>
> HTH,
> Paul
It does help. Image is better aligned. But still not accurate :(.
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