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What Datums, Spheroids, and Projections were used in this Atlas?

April 26, 2017Atlas datums projections spheroids Used

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What Datums, Spheroids, and Projections were used in this Atlas?

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Lower 48: Datum: NAD27; Spheroid: Clark Ellipsoid of 1866; Units: Meters; Projection: Albers Equal-Area with Central Meridian = -96.0, Reference Latitude = +37.5, Standard Parallel 1 = +29.5, and Standard Parallel 2 = +45.5. Alaska: Datum: NAD27; Spheroid: Clark Ellipsoid of 1866; Units: Meters; Projection: Albers Equal-Area with Central Meridian = -154.0, Reference Latitude = +50.0, Standard Parallel 1 = +55.0, and Standard Parallel 2 = +65.0. Hawaii: Datum: NAD27; Spheroid: Clark Ellipsoid of 1866; Units: Meters; Projection: Albers Equal-Area with Central Meridian = -157.0, Reference Latitude = +13.0, Standard Parallel 1 = +8.0, and Standard Parallel 2 = +18.0.