Tags: Land Surveying, NGS Accuracy Standards Geodetic control surveys are usually performed to establish a basic control network (framework) from which supplemental surveying and mapping work are performed. The required accuracy for a control survey depends primarily on its purpose. Factors that affect accuracy are type and condition of equipment used, field procedures adopted, and…
Report on a public forum entitled, “Aligning County Surveying and Parcel Mapping Efforts in Wisconsin,” hosted by the Wisconsin State Cartographer’s Office on March 12, 2015, at UW-Stevens Point.
This handbook is a technical guide and resource for those who work with geospatial information in Wisconsin. It provides a brief overview of the history, evolution, and basics of Wisconsin’s coordinate reference systems, and compiles in one place the technical specifications for systems most commonly used in the state.
State and national publications of interest to land surveyors.
Surveying-related links to a variety of state and national organizations.
The WisDOT Geodetic Survey Unit has developed a Wisconsin Continuously Operating Reference Stations (WISCORS) Network consisting of permanent GPS sites, which provide real-time correctors to mobile users. Mobile users properly equipped to take advantage of these correctors can survey in the field to the 2-cm accuracy level in real-time.
The Wisconsin Height Modernization Program (HMP) is designed to improve the density of geodetic control stations listed in the National Spatial Reference System (NSRS) with accurate orthometric heights (elevations). The Wisconsin Dept. of Transportation (WisDOT), in cooperation with the National Geodetic Survey (NGS), initiated a program in 1998 to improve the height data throughout the State.
Report on a public forum entitled, “A Day with Your County Surveyor,” hosted by the Wisconsin State Cartographer’s Office on April 3, 2017, in Wisconsin Dells.
We answer hundreds of technical mapping-related questions every year from both the general public and geospatial professionals. This page provides more information on some of the most common questions we receive from map and GIS users.
