1 / 8

Understanding GPS: A Citizen Science Workshop Lesson

Learn about the Global Positioning System (GPS) in this workshop. Discover how GPS works with satellites to determine precise locations and navigate. Practice defining points, lines, and polygons for various mapping purposes.

judyhernandez
Download Presentation

Understanding GPS: A Citizen Science Workshop Lesson

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Citizen Science Training Workshop Lesson 2: Introduction to GPS The Citizen Science Research Team The National Institute of Invasive Species Science Natural Resource Ecology Laboratory Colorado State University Content By: Alycia Crall (modified by Jim Graham) May 30, 2007

  2. Example: Universal Tranverse Mercator Where does the point lie? Answer: 4,696,750 meters north (Northing) 471,800 meters east (Easting)

  3. Definitions • Global Positioning System (GPS) • hand-held receiver • determines position (geographic, UTM)

  4. How does GPS work? • Utilizes a network of 24 satellites that transmit precise microwave signals • enables a GPS receiver to determine its location, speed and direction

  5. How do GPS units work? Satellite 1 Location Receiver Location Every point on circle is a possible receiver location Receiver Location?

  6. How do GPS units work? Satellite 2 Location Satellite 1 Location ? ?

  7. How do GPS units work? Satellite 2 Location Satellite 1 Location Known Receiver Location Satellite 3 Location

  8. GPS Data Uses • Navigation • Where am I? • How do I get from point x to point y? • Mapping • Define a point (e.g., campground, plot location) • Define a line (e.g., hiking trail, river) • Define a polygon (e.g., lake, area covered by weed) Line Polygon Point

More Related