Projection Parameters

All of AIMS data is projected using the following parameters:

• Projection: State Plane Kansas North (WKID 3419)
• Horizontal Datum: North American Datum of 1983 (NAD83)
• Vertical Datum: North American Vertical Datum of 1988 (NAVD88)
• Units: US Feet
• Spheroid: GRS1980333.333333333
• False Northing: 0
• 1^st Standard Parallel: 38.71666666666667
• 2^nd Standard Parallel: 39.78333333333333
• Latitude of Projection Origin: 38.33333333333334
• Central Meridian: -98.0

It should be noted that the State Plane Coordinate System is not a projection. It is a coordinate system that divides all fifty states, Puerto Rico and the US Virgin Islands into over 1220 numbered zones. Construction of a coordinate system for each zone is based on one of three projections: the Lambert Conformal Conic, the Transverse Mercator or the Oblique Mercator. Each zone has an assigned USGS code number, each having a designated central origin that is specified in degrees. Generally used on 7.5 and 15-minute topographic quadrangles. The State Plane coordinate system for Kansas is divided into two zones, North and South, and is based on the Lambert Conformal Conic projection.