Hi all, Please bear with me, I'm relearning ArcMap after using mapinfo exclusively for the last two years. I'm trying to work with a raster data set (attached in zip file) sourced from the USGS and having issues working with it as it is missing it's spatial reference information. The raster's metadata includes the following information: Map Projection Name: Lambert Azimuthal Equal Area longitude of projection center: -100.000000 latitude of projection center: 45.000000 false easting: 0.000000 false northing: 0.000000 Planar Coordinate Encoding Method: row and column coordinate representation: abscissa resolution: 1000.000000 ordinate resolution: 1000.000000 planar distance units: meters geodetic model: horizontal datum name: D Shpere ARC INFO ellipsoid name: Sphere ARC INFO semi major axis: 6370997.000000 denominator of flattering ration: infinity I've attempted to manually input the projection centers when setting the raster spacial reference but don't see any change when it runs. I've also attempted to find a complementary projection as Arc only has a polar Lambert Azimuthal Equal Area which does not work in this circumstance. I've also tried uploading a vector layer (basic US states layer, WGS 1984) with known spatial reference before uploading the raster. That also has no effect on the raster. Does anyone have any ideas or could help me out?
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I want to thank all of the posters for discussing this ongoing issue. I became aware of the problem on Feb 6th at my university but I was unable to get a definite answer from ESRI regarding the issue. It's very frustrating getting no answers but you have no idea about the relief that I'm experiencing right now!
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