Transcript /elrww/downloads/15203.ppt

Position yourself with
GIS/GPS….
…in Lawrence & Richland
Counties
Dennis Bowman
Steve Wagoner
Susan Hayden
Jay Solomon
Barb Roberts
Pete Fandel
Greg Clark
Kim Rahn
GPS = Global Positioning Systems
• What is your position in the world?
• Latitude and longitude coordinates identify
location
Coordinates
University of Illinois Extension
Lawrence/Richland Unit
• Lawrenceville Office
N 38° 43.398
W 087° 43.219
• Olney Office
N 38° 43.778
W 088° 05.007
24 satellites circle
Need at least 3 satellite signals

GPS units can show..
Waypoint: A map location
Examples: the location of a house, a store, or where you
parked your car.
Track: the path from one location to another.
Parked car
Geocache
Commerce & Govt.
 Agriculture
Military
Maritime
Automotive
Surveying
Aviation
Forestry
Mapping - GIS
COMMUNITY
SERVICE
Recreational GPS
Geocaching
Hiking
Hunting
Nature study
Fishing
Boating
Biking
Snowmobiling
COMMUNITY
SERVICE
Geocaching
High-tech scavenger hunting
Lots of caches!
As of 12/8/08, there were 696,092 caches worldwide
In excess of 314,500 new logs were written by 46,528 account holders
in the seven days prior.
County caches
www.geocaching.com
Caches in 62439 area
Arena cache info
Entering coordinates
Enter a waypoint to find
1.
Press and hold [Enter] for a few secs; you will see “Mark Waypoint”
page.
2.
Scroll to “Location” to type the coordinate. Press [Enter] to unlock
box. Use rocker button to enter coordinates by pressing left or right for
cursor position, and up or down to scroll through letters and numbers.
3.
When done press [Enter] to lock your entry.
4.
To label the coordinate; scroll to the first box on the “Mark Waypoint”
page. Press [Enter] to unlock and enter name. Press [Enter] to lock
entry.
5.
Click “OK”
Navigating
1.
Press [NAV] on your receiver.
2.
Click “Go to Point” and [Enter]
3.
Click “Waypoints” and [Enter]
4.
[Enter] to unlock waypoints and scroll down or use rocker button to find
the name of the coordinate
5.
Once you find it press [Enter].
6.
Click “Go To”.
7.
Press on [Page] to reach the “Pointer Page” – looks like a compass.
(complete handout for this is on myExtension site)
GPS Information Page
Your speed
Satellite location
Signal strength
Your waypoint
Page views
Pointer page shows you the direction you are traveling you must be moving for it to work
Geocaching issues
• Signal interference or bounce
– Buildings, trees, leaves, clouds, water
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Satellite availability
Within 10 ft. to 30 ft.
Must be moving
Migration of cache
Cache sizes
• Micro – very small - a watch battery, a film
canister or pill bottle
• Small or medium – peanut butter jars, small
margarine tubs, Tupperware containers,
Ziplock® baggies
• Large – Ammo can to 5 gallon bucket
• Unknown - Anything goes
Things to Bring
• GPS unit
• Pen or Pencil
• Supplies - wipes, batteries, flashlight, suntan lotion, bug
spray, toilet paper, small blanket, rain poncho, Ziplock® bags,
paper, small tool set, cell phone.
• Clothing - jeans, walking or
sleeved shirt.
hiking shoes, possibly a long
Future applications
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Take “geospatial” as a 4-H project
Form a Tech Team
Get together and geocache
Create a geocache
Do community mapping
Or ???
Questions?
Good luck and have
FUN!