Session
Title: Datum Update
Date: Wed Jul 24, 2019
Time: 4:00 PM - 5:20 PM
Moderator: Damien Lepoutre
2022 Datum Changes, Nation Spatial Reference System Modernization

In 2022, NGS will be replacing the US horizontal and vertical datums (NAD 83 and NAVD 88). In this talk we will review the need and process for these changes. We will begin with a brief discussion of the history of the North American Datum of 1983 and the North American Vertical Datum of 1988, and the reasons for their ongoing evolution. We will then discuss what activities are being undertaken to ensure a smooth transition to include new State Plane Coordinates.

Scott Lokken (speaker)
NGS Mid Atlantic Regional Geodetic Advisor
NOAA/National Geodetic Survey
Raleigh, NC 27607
US
31 year career at the National Geodetic Survey. In Late 2016 I became the NGS Mid Atlantic Regional Advisor. The region spans coastal states Delaware south to Georgia and Puerto Rico and US Virgin Islands. Previously,(2005-2016) served as the NGS NC State Advisor , 1986-2005 part of the NGS Survey teams participating in Leveling, GPS surveys, and Airport Charting. Undergrad was at North Dakota State University in Electrical Engineering and Music Education. Additional undergrad studies in Geomatics at the Oregon Institute of Technology. GIS Certificate from Penn State University.
Length (approx): 40 min
 
Spatial Information Overview and Impact of Datum Update on Spatial Data Providers and Consumers

Spatial information is a key component of many precision agriculture applications. From GPS/GNSS positions used for auto-guidance, to field maps for precise prescriptions, the accuracy of positions, as well as the accuracy of meta-data describing the spatial information is imperative to realize the full benefits of precision agriculture. The importance of spatial data providers and consumers (e.g. software developers) understanding the intricacies of datums, coordinate systems, and projections is ever-increasing as more and more data from different sources are integrated together. 

This presentation will provide background on the make-up of spatial data, GPS/GNSS usage in precision agriculture, and how this relates to precision agriculture data from various sources. The effects of any datum / coordinate-system / projection misunderstanding, or mis-match will be discussed in general, and also tied to the NSRS2022 datum update.

Towfique Ahmed (speaker)
Product Manager
Trimble Inc.
Westminster, CO 80021
US
Towfique Ahmed is a Product Engineer within the Trimble Advanced Positioning Division, focusing on real-time correction services. Towfique is currently responsible for product management of Trimble RTX and OmniSTAR correction services across the Agriculture, Geospatial, and Construction platforms, as well as the CenterPoint RTX Post-processing service. In his 7 years with Trimble, Towfique has also worked within the Geospatial Survey testing, GIS/Mapping support, Mobile Mapping technical sales, and Agriculture product management teams. He holds a B.Sc. in Geomatics Engineering from the University of Calgary, with a project specialization in GNSS.
Length (approx): 40 min