This is the powerpoint for training the Master GPS/GIS 4-H Volunteers in Region 6

1. GPS/GIS 4-H:
USING THE GLOBAL POSITIONING
SYSTEM IN 4-H PROGRAMMING

2. But we are going to start by going
Old School for a just a little while

3. GEAR-TECH-21
Camp 1.0 Activity
Reading a Paper Map

4. Let’s take a look at those
maps you created when
you first came in today…..
Draw a Map of Where you Are.

5. Reading a Paper Map
• What kinds of Maps are there?
• Did you use any symbols?
• Did you draw things to scale?
• Is your map small scale or large scale?
• What was the purpose of your map?

6. Now let’s take a look at a
variety of commercial
maps created for many
different purposes…
What do they have in
common?

7. Maps are not all created equal
Maps for your own purpose can suit your needs…..but
when you are communicating with a larger audience or
publishing it:
– Maps need some basic components
• A title
• A North Arrow to indicate map orientation
• Scale bar to measure distance
• Source discloses the author and data source
• Legend describes meaning of symbols and
colors
• Labels have names for geographic features
• Geographic features represented by colors,
drawings or symbols

8. There are basically 2 kinds of maps
• General reference maps
– Color or other symbols are typically related to
physical geographic objects familiar to the
public such as roads, river and cities
• Thematic Maps
– Have key information is related to information
associated with given property or data layer
..they represent a specific theme such as land
ownership..with private and public lands in
different colors or population density

9. GEAR-TECH-21
Camp 1.0 Activity
Direction

10. Direction
• Direction is Relative
• Equator-Divides North and South
• Prime Meridian-Divides East and West
• Heading
• Bearing
• The Basic Direction Device
– the Magnetic Compass

11. The Magnetic Compass
• The Parts

12. How have you encountered
GPS and GIS Mapping?

13. GPS and GIS Mapping are
daily encounters for many…
• Smart Phone Apps depend on GPS and
display GIS Mapping
• In our autos
• While out Fishing or Hunting
• While out Farming
• While out Hiking
• Just for fun or adventure-Geocaching
and Earthcaching

14. SOME GPS APPLICATIONS
COMMERCE & RECREATIONAL
GOVERNMENT • HIKING
• MILITARY • HUNTING
• MARITIME • NATURE STUDY
• AUTOMOTIVE • FISHING
• SURVEYING • BOATING
• AVIATION • BIKING
• FORESTRY • SKIING
• ENVIRONMENTAL • SNOWMOBILING
• PUBLIC SAFETY • GEOCACHING
• ETC. • GOLF ! ETC.

15. HOW CAN WE UTILIZE GPS IN 4-H PROGRAMMING?
EDUCATIONAL & OPERATIONAL USES
WILDLIFE MAPPING
HIGH ADVENTURE
LEADER TRAINING
SEARCH & RESCUE
BIG TREE
SCIENCE & TECHNOLOGY SEARCH
HUNTER EDUCATION
TRIP PLANNING & SAFETY
ENVIRONMENTAL FISHING & CANOEING
EDUCATION
AND LOTS MORE !

16. Global Positioning System
A network of satellites that continuously transmit coded information, which makes it possible to
precisely identify locations on earth by measuring distance from the satellites.
THE GPS SATELLITE CONSTELLATION
From GPS Land Navigation by Michael Ferguson

17. GPS and GIS DEFINITIONS
GPS is short for Global Positioning System which is
"a network of satellites that continuously transmit coded
information, which makes it possible to precisely identify
locations on earth by measuring distance from the satellites".
Of course, many users also refer to their hand-held GPS
receivers as "my GPS" ... as in the statement "my GPS'
batteries went dead and I got lost!"
GIS is short for Geographic Information System(s). "In the
strictest sense, a GIS is a computer system capable of
assembling, storing, manipulating, and displaying geographically
referenced information , i.e. data identified according to their
locations. Practitioners also regard the total GIS as including
operating personnel and the data that go into the system"
( from: http://www.usgs.gov/research/gis/title.html ).

18. The NAVSTAR System
24 Satellites
6 orbital plates
11,000 miles up
12 hour orbit
from GPS Land Navigation by Michael Ferguson

19. ERROR SOURCES
Multipath interference
LINE OF SIGHT Atmospheric
Geometric DOP
Clock
Ephemeris
S.A. (now turned off)
from GPS Land Navigation by Michael Ferguson

20. BASIC NAVIGATION INFORMATION
PROVIDED BY GPS UNITS . . .
YOUR CURRENT POSITION
•COORDINATES (LATITUDE & LONGITUDE, UTM, MGRS, ETC.)
•ELEVATION (0R BETWEEN WAYPOINTS)
DIRECTION TO SPECIFIED WAYPOINTS
DISTANCE TO SPECIFIED WAYPOINTS
(0R BETWEEN WAYPOINTS
YOUR SPEED OF TRAVEL
YOUR DIRECTION OF TRAVEL

21. . . . AND OFTEN MUCH MORE
MAPS
TIME OF DAY
CROSS TRACK ERROR
ESTIMATED TIME OF ARRIVAL
ESTIMATED TIME ENROUTE
COORDINATES OF CITIES & TOWNS
Best time for Fishing and Hunting

22. Let’s Get our Hands on GPS!
• Each of you will get a Yellow Garmin E-
Trex to work with

23. USING
THE
GARMIN
eTrex

33. SPEED
TRIP ODOMETER
TRIP TIME
SUNSET
SUNRISE
LOCATION
ELEVATION
BEARING
HEADING
MAX SPEED
AVERAGE SPEED

34. Trilaterion and Space
• Trilateration Activity UP and GOING
• Trilateration Activity with a boy lost

35. Lets go set some waypoints!
• Each team set five waypoints and then
exchange a GPS unit with another team
• See if they can find the each of your
waypoints
• Each team will stash one Geocache and
then share exchange GPS units with
another team to see if you can find theirs
• Collect a ping pong ball from each

36. We’re Back…..
• Let’s put that data to good use
• Import your waypoints into Easy GPS

37. M
O
The 411 for 911
S.U.M.O Community Service Project 2011
“WE SAVE LIVES”

38. THE PROBLEM:
• When firefighters go out on an emergency
call they might have trouble finding the
exact location of the fire hydrant.

39. THE SOLUTION:
• Our IT team mapped out the location of
fire hydrants in the communities of
Missouri Valley, Magnolia, and Pisgah
using GPS units.
• This allows Firefighters to access the
hydrants quickly and put out fires more
effectively. In retrospect…. “WE SAVE
LIVES.”

40. THE PROCESS:
The GPS Unit
• We got in contact with the head of the Harrison County
GIS, Jeremy Butrick.
• He provided us two of these units and he trained us on
how GPS works and how to use these units for
accuracy and gave us assistance with his software to
import the waypoints and transfer them to a GIS map
that Harrison County Emergency Services would use
in guiding firemen to the closest hydrants.

41. How it Works:
• There are always many satellites in motion above our
heads.
• A maximum of 13 satellites at any given time are
within range to communicate with our device, but only
4-5 are needed to record its location.
• At the push of a button, this device uses those
satellites to mark its position.
• Due to cloud coverage, wind, sound wave reflection,
and blockage from objects, the reading given by one
of these units can be off by up to 6 feet. To counter
this, the GPS unit takes a minimum of 20 readings,
about one a second, to get an accurate average.

42. How We Did It:
• We picked two days that would have the best
satellite coverage for our big town, Missouri
Valley and our two small towns, Pisgah and
Magnolia.
• We went around finding all of the fire hydrants
and recording their locations.

43. • Jeremy took the GPS Units and hooked them up
to his computer.
• The computer took the points we recorded and
averaged every point out.
• The points were then put on to pre-existing GIS
maps of the towns for Harrison County
Emergency Services and the 911 Center to use
in helping firefighters know where the closet
hydrants are to a location.

45. 4-H GPS/GIS Resources
• GEAR-TECH-21 Curriculum Website
– http://4hset.unl.edu/4hdrupal/ or Google GEAR-TECH-21
• 4-H GIS/GPS Facebook Page
– http://www.facebook.com/4hgisgps
• 4-H Geospatial Programming Resources
– http://www1.cyfernet.org/prog/gis/gis.html
• 4-H GISGPS Email Distribution List
– http://www1.cyfernet.org/prog/gis/4hgisgps.html
– Join this online community and get lots of 4-H GPS/GIS
connections, projects, learn about grants, opportunities

46. 4-H GPS/GIS Resources
• Virginia 4-H GPS/GIS Resources
– http://www.4-h.ext.vt.edu/programs/nree/gpsgis/index.html
• eXtension Geospatial Technology Community
– http://www.extension.org/pages/9608/mapsyst-community-page

47. THE END