wjh survey

Survey Says! : Changes Coming in 2022

Walter Hopkin Our Blog

The current official horizontal and vertical datums of the National Spatial Reference System (NSRS) are NAD 83 and NAVD 88, respectively, commonly used among surveyors. However, over the near thirty-five years of both datums being used, many issues have been found. These issues are rooted in the fact that both datums are defined primarily by a network of passive geodetic …