The terrain dataset is a mulitresolution, TIN-based data structure built from multiple data sources such as LiDAR bare earth points and 3D breaklines and are stored as features in a geodatabase.
The 2011 terrain dataset was developed as a derivative product for use in general surface modeling and depiction.
ground condition
To be determined by client.
160 S Macy St
None
Terrain coverage is spatially and topologically continuous for the project-specified area of Fond Du Lac County, WI.
The terrain data covers all of the Fond Du Lac County, WI project area with no gaps or omissions.
The dataset meets ASPRS Class II accuracy standards. The horizontal and vertical coordinates shall be referenced to the County coordinate system (NAD83 in Feet) and NAVD88.
Based on tests conducted by staff from Ayres Associates: Survey grade elevations were taken in the project area in five different types of cover. These elevations were compared with the LiDAR terrain elevation. RMSE results: Overall: 0.343
Ayres Associates prepared an ESRI-derived terrain dataset using the bare earth points and breaklines acquired in the Fall of 2011 of Fond Du Lac County, WI.
1802 Pankratz Street