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Geodesy for Drone Surveying
Course Introduction
Introduction to this Course (2:31)
Meet Your Instructor (2:17)
Course Textbook
Intro to Geodesy
Purpose of this Section (0:33)
Geodesy Definition and Importance in Mapping and Surveying (1:38)
The Need for a “Mathematical Surface” (3:06)
Latitude and Longitude Basics (4:15)
The Role of Geodesy in Modern Positioning (4:24)
Geodetic Surveying: How We Got Here
Purpose of this Section (0:48)
What is the National Geodetic Survey (NGS)? (4:54)
Problem: Everyone Using Their Own Models (4:15)
Tools We Used Before GPS/GNSS (9:44)
The Origin Of Global Positioning System (GPS) (5:13)
GPS to GNSS: Evolution of Satellite Positioning (5:31)
Understanding Satellite Geometry for GPS Positioning (3:00)
Relevant Organizations for Geodesy and Surveying (4:19)
The Earth's Shape The 3 Surfaces and The 3 Heights Equation
Purpose of this Section (0:41)
What is the ACTUAL Shape of the Earth? (2:11)
Surface 1: The Ellipsoid (11:02)
The Geoid and The Three Heights Equation (8:31)
Coordinate Systems
Purpose of this Section (0:30)
Overview of the Different Types of Coordinate Systems (4:03)
Geographic Coordinates (9:44)
Cartesian Coordinates (4:30)
Earth-Centered Earth-Fixed (ECEF) System (3:34)
Geodetic Models And Datums
Purpose of this Section (0:42)
Understanding Reference Ellipsoids, Systems and Frames (4:39)
The Evolution of Ellipsoids in U.S. Geodetic Surveys (5:19)
WGS84 (World Geodetic System 1984) (2:16)
What is a Datum? (3:52)
Horizontal Datums and Their 8 Components (8:39)
Expressing Modern Datums (3:49)
Global Vs Local Datums (8:42)
WGS 84 vs. NAD 83 (2:21)
Preview of Vertical Datums (4:26)
Heights And Vertical Accuracy
Purpose of this Section (0:31)
Recap of the 3 Heights Formula (2:12)
Vertical Datums (7:20)
EGM08 (1:12)
Tidal Datums (5:13)
Projections
Purpose of this Section (0:32)
The Need for Map Projections. Part 1 (3:46)
The Need for Map Projections. Part 2 (6:07)
The Distortion Problem (2:48)
Transverse Mercator Projection (2:10)
Lambert Conformal Conic Projection (4:16)
State Plane Coordinate Systems (2:10)
“Ground to Grid” Conversions and Scale Factors (3:35)
Metadata and Units Of Measure (3:22)
Geodetic Control Networks
Purpose of this Section (0:46)
What Is Geodetic Control? (6:25)
Understanding Passive and Active Geodetic Control (7:17)
Examples of Passive Control (3:57)
Active GNSS Control Systems (2:32)
Accessing and Understanding Geodetic Data from NGS (8:42)
Understanding Geodetic Data:Coordinates, Epochs, and Accuracy (7:26)
Course Summary
Course Summary (2:58)
Final Exam
Final Exam
Problem: Everyone Using Their Own Models
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