Category: Geospatial Services

Task Force Positions Geospatial Community for Proposed 2022 Datum Changes

By Dick Kleinmann, PLS The National Geodetic Survey (NGS) soon will be replacing the North American Datum (NAD) of 1983 and the North American Vertical Datum (NAVD) of 1988 to improve the National Spatial Reference System (NSRS) – the system that defines latitude, longitude, height, and orientation throughout the nation. Read More »

Why Should I Hire an ASPRS-Certified Mapping/GIS Expert?

This image from Tinley Park – part of Ayres Associates’ work for the suburban Chicago GIS Consortium – exemplifies a project where CP meets CMS-GIS/LIS. Much of the mapping Ayres does for local government is collected from aerial imagery and is delivered in GIS-ready format. In this example, paved surfaces and buildings are displayed on… Read More »

Can Mapping Save Lakes from Perils of Soil Erosion?

By Zachary Nienow, GISP Culvert mapping and culvert asset management have been hot topics at the local, state, and even federal level lately. Runoff from rainfall events can carry nutrients away and transport soil to rivers and lakes. Site-specific and watershed-based factors can impact erosion, leading to sediment loading and other water and aquatic habitat… Read More »