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16<br />
ACSM Workshops (cont.)<br />
This half-day workshop provides a comprehensive discussion of NGS’<br />
guidelines for establishing GPS-derived ellipsoid heights and demonstrates<br />
the basic procedures for estimating GPS-derived orthometric<br />
heights consistent with the North American Vertical datum of 1988<br />
(NAVD 88). The following topics will be discussed:<br />
• Heights and Height Systems and Their Relationships<br />
• Development of NGS GPS-Derived Ellipsoid Height Guidelines<br />
• GPS-Derived Ellipsoid Height Guidelines<br />
• Basic Procedures for Estimating GPS-Derived Orthometric Heights<br />
Instructor: Curtis Smith, NGS, Oregon State Geodetic Advisor<br />
THE RULES OF LAND SURVEYING<br />
Room: B North 6<br />
Wednesday, April 24<br />
8:30 am – 12:30 pm<br />
PDH Hours: 4<br />
FL CEP: 032 144<br />
Course Level: Introductory<br />
The subject of the workshop is the rules of reason (specifically notice),<br />
the rules of law senior rights, adverse possession), the rules of construction<br />
(relative priority of monuments over calls), and the rules of evidence<br />
(admissibility, relevance, conclusiveness). The purpose of the workshop<br />
is to provide an understanding of these types of rules, the differences<br />
between them, and their varied role in boundary retracement. The intent<br />
is to correct a widespread mistaking of some of these rules for others<br />
(notably the rules of law and construction for rules of evidence).<br />
Instructor: Wilhelm A. Schmidt, MA, PLS<br />
Wednesday • All Day Workshops<br />
PRACTICAL SURVEYING WITH GPS<br />
Room: Wilson A<br />
Wednesday, April 24<br />
Also offered on Tuesday, April 23<br />
8:30 am – 4:00 pm<br />
PDH Hours: 6.5<br />
FL Course # CEP 032 84<br />
Course Level: Intermediate<br />
See description on page 14<br />
Workshop Limit: 30<br />
GEODESY BASICS<br />
Room: B North 5<br />
Wednesday, April 24<br />
8:30 am – 5:30 pm<br />
PDH Hours: 7.5.<br />
FL CEP: 032 21<br />
Course Level: Introductory<br />
As surveying relies more and more on GPS and GIS, surveyors need to<br />
have a greater understanding of the geodetic sciences. This seminar is<br />
for the professional land surveyor or technician and covers subjects<br />
ranging from history to datum transformations and the future of the<br />
National Spatial Reference System. It is a detailed lecture on the least<br />
understood technical part of surveying.<br />
Instructors: David R. Doyle, National Geodetic Survey<br />
James P. Reilly, Dept. Head, Department of Surveying,<br />
College of Engineering, New Mexico State University<br />
Wednesday • Half-Day Afternoon Workshops<br />
GPS-DERIVED HEIGHTS PART 2:<br />
PLANNING AND EVALUATING A GPS VERTICAL SURVEY<br />
Room: Virginia C<br />
Wednesday, April 24<br />
1:30 pm – 5:30 pm<br />
PDH Hours: 4<br />
FL CEP: 032 61<br />
Course Level: Intermediate<br />
This half-day workshop is designed to help you understand height systems<br />
better and develop the skill of determining accurate heights with<br />
GPS. Working in partnership with federal, state, and local agencies, the<br />
academia, and private surveyors, the National Geodetic Survey (NGS)<br />
developed guidelines for performing GPS surveys that are intended to<br />
achieve ellipsoid height network accuracies of 5 cm, and ellipsoid height<br />
local accuracies of 2 cm and 5 cm, all at the 95 percent confidence level.<br />
The process of developing the guidelines from representative data sets<br />
and using feedback from users is outlined in the course. The core of the<br />
workshop, however, is an in-depth discussion on procedures for estimating<br />
GPS-derived orthometric heights consistent with the North<br />
American Vertical Datum of 1988 (NAVD 88). A sample project will be<br />
used to demonstrate the steps from planning a project to estimating the<br />
final set of GPS-derived orthometric heights consistent with the National<br />
Spatial Reference System. The workshop is organized around the following<br />
topics:<br />
• GPS-derived ellipsoid height guidelines<br />
• Baseline processing and analysis of repeat baseline results<br />
• Adjustment procedures and analysis of results<br />
• Procedures for estimating project GPS-derived orthometric heights<br />
Prerequisite: GPS-Derived Heights Part 1: Development and Description<br />
of NGS Guidelines"<br />
Instructor: Curtis Smith, NGS, Oregon State Geodetic Advisor<br />
GIS TECHNOLOGY LAB<br />
Room: Wilson B<br />
Wednesday, April 24<br />
1:30 pm – 5:30 pm<br />
PDH Hours: 4<br />
FL CEP: 032 143<br />
Course Level: Introductory<br />
See description on page 13<br />
Workshop Limit: 30<br />
This workshop is also offered on Tuesday morning/afternoon and<br />
Wednesday morning.
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