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EASE2_M25km.gpd
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EASE2_M25km.gpd
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; 25 km Global EASE-Grid-2.0 grid parameter definition.
; This projection uses the WGS84 ellipsoid.
; The left and right edges of the grid are at -+180.000000 deg longitude.
; The top and bottom edges of the grid are at +-84.439790 deg latitude.
; 2011-01-11 : Original grid defined with scale = 25025.2600081 m
; 2014-03-05 : Scale revised to 25025.26000 m
; Original scale at higher precision was causing accumulated round-off
; error that resulted in left edge (col=-0.5) values to return
; longitude 180.0, and right edge values to return longitude -180.0.
Map Projection: Cylindrical Equal-Area (ellipsoid)
Map Reference Latitude: 0.0
Map Reference Longitude: 0.0
Map Second Reference Latitude: 30.0
Map Rotation: 0.0
Map Equatorial Radius: 6378137.0 ; wgs84
Map Eccentricity: 0.081819190843 ; wgs84
Map Origin X: -17367530.44 ; Grid Map Units Per Cell *
; Grid Width / 2
Map Origin Y: 7307375.92 ; Grid Map Units per Cell *
; Grid Height / 2
Grid Map Origin Column: -0.5
Grid Map Origin Row: -0.5
Grid Map Units per Cell: 25025.26000 ; meters (see comment)
Grid Width: 1388
Grid Height: 584
; The following parameters are used only by NSIDC programs that actually draw maps
Map Southern Bound: -84.439790
Map Northern Bound: 84.439790
Map Western Bound: -180.0
Map Eastern Bound: 180.0
Map Graticule Latitude Interval: 15.00
Map Graticule Longitude Interval: 30.00
Map Graticule Label Latitude: 0.0
Map Graticule Label Longitude: 0.0
Map CIL Detail Level: 1
Map BDY Detail Level: 0
Map RIV Detail Level: 0