GPS 4-H EXPLORATIONS 2009 Powerpoint

8/14/2019 GPS 4-H EXPLORATIONS 2009 Powerpoint

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GPS 4-H EXPLORATIONSUSING THE GLOBAL POSITIONING SYSTEM FOR WILD-LAND NAVIGATION,

ENVIRONMENTAL INVESTIGATIONS, SCIENCE EDUCATION, AND MORE.

Mike Clifford Frog Holler GPS

Senior Extension Agent Emeritus, Virginia TechJan. 2009

February, 2002

May, 2007


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GPS is short forGlobal Positioning System which is

"a network of satellites that continuously transmit codedinformation, 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 forGeographic 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 ).

GPS and GIS DEFINITIONS


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SELECTED GPS NAVIGATION TERMS (as used by Garmin)

WAYPOINT: A specific location, entered in a GPS receiver or on a map.

[Also known as a "point", a "marker" (MapTech) or a "landmark" (Magellan)].

TRACK: A path of travel automatically logged in a GPS receiver.

ROUTE: A sequence of waypoints created in a GPS receiver (or on a digital

map). Components of a route include waypoints, distances and directions.

GOTO: Activating direct GPS travel to a destination ('as the crow flies')

BEARING: Direction from your currentlocation to a selected destination.

COURSE: Direction from yourstartinglocation to a selected destination.

HEADING: Direction that you are currently moving.

ETA: Estimated Time of Arrivalat a selected destination (next or final).

ETE: Estimated Time En route at a selected destination (next or final).

EPE: Estimated Position Error- GPS estimate of current position accuracy.

(simply displayed asAccuracy in some units)


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MORE GPS and MAPPING TERMS(that you probably never heard of before)

WAAS: The Wide Area Augmentation System is a Federal Aviation Administration system ofgeostationary satellites (over the equator) and ground stations which provides free differentialcorrection to GPS receiver in range. With a clear view of the southern sky, accuracy improvementto three meters can be expected. Most new GPS receiver models have WAAS capability.

Position Format: In a GPS receiver, this is the selectable coordinategrid system used to identifya position. The default setting in most GPS models ishdddmm.mmm (a.k.a. decimal minutes).Two additional latitude-longitude options arehddd.ddddd (a.k.a. decimal degrees) andhdddmmss.s (a.k.a. decimal seconds). Another commonly used setting isUTM/UPS (seebelow). When you need to switch from one system to another, the receiver automatically handlesthe conversion.

Map Datum: A mathematical model that describes the earths surface, necessary to manage theinherent distortion created when making a flat map from a globular world. In GPS receivers, thedefault datum setting is WGS 84. Others commonly used in the USA are NAD 27 and NAD 83.

When you need to switch datums to match maps or other users, the receiver automatically handlesthe conversion.

UTM: The Universal Transverse Mercator coordinate grid system is particularly useful whenusing GPS with paper maps. Connecting the blue tick marks along the margins of USGS 7.5'topographic maps will produce a grid of squares, 1000-meters on a side. When set to UTM, a GPSreceiver displays coordinate precision to one meter within these squares, allowing you to easilypinpoint precise locations on the map. Note that precision exceeds accuracy in this case.


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BASIC INFORMATION

PROVIDED BY GPS RECEIVERS . . .

YOUR CURRENTPOSITIONCOORDINATES (LATITUDE & LONGITUDE, UTM, MGRS, ETC.)ELEVATION (APPROXIMATE)

DIRECTIONTO SPECIFIED WAYPOINTS (MARKERS)(0R BETWEEN WAYPOINTS)

DISTANCETO SPECIFIED WAYPOINTS

(0R BETWEEN WAYPOINTS)

YOURSPEEDOF TRAVEL

YOURDIRECTIONOF TRAVEL


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. . . AND OFTEN MUCH MORE

ESTIMATED TIME OF ARRIVAL, ENROUTE

AREA & PERIMETER MEASUREMENT

MAPS base map; loadable topo and street maps

HIGHWAY ROUTES - turn-by-turn directions

POINTS OF INTEREST

CALCULATORS & CALENDARS

DOG TRACKING

TIME OF DAY, SUNRISE/SUNSET

CELESTIAL, SOLUNAR DATA

GPS GAMES ETC.


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SOME GPS APPLICATIONS

MILITARY

MARITIME

AUTOMOTIVE

SURVEYING

AVIATION

AGRICULTURE

FORESTRY

ENVIRONMENTAL PUBLIC SAFETY

EDUCATION

HIKING

HUNTING

NATURE STUDY

FISHING

BOATING

BIKING

SKIING

SNOWMOBILING

GEOCACHING

GOLF !

PROFESSIONAL RECREATIONAL
http://en.wikipedia.org/wiki/Image:Pbalson_20060527_IMG_3781.JPG


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Patriotic GPS Art ! An amazing maize maze


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HOW WE UTILIZE GPS IN YOUTH PROGRAMMINGEDUCATIONAL & OPERATIONAL USES

HUNTER EDUCATION

WILDLIFE MAPPING

HIGH ADVENTURE

TRIP PLANNING & SAFETY

SEARCH & RESCUELEADER TRAINING

FISHING & CANOEINGENVIRONMENTAL

EDUCATION

BIG TREE

SEARCHSCIENCE & TECHNOLOGY

AND LOTS MORE !

CAMPS

WETLAND &

WATERSHED

STUDIES


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GPS WORKSHOPS


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VIRGINIA 4-H GPS CURRICULUM(as of Jan. 2009, more under development)

LEVEL A BEGINNER

Getting to Know Your GPS Receiver Marking and Finding GPS Waypoints Communicating with the Satellites GPS Treasure Hunt

LEVEL B INTERMEDIATE

Locating GPS Satellites Collecting Tons of Data with GPS GPS Nature Trail Youth Favorite Places Geocache Hunting

LEVEL C ADVANCED Creating New GPS Waypoints Hosting a Geocache GPS Search & Rescue - Find Bubba!


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National

Educational

Standards:

GeographyScience

Technology

Math

Order Geospatialcurriculum online at: http://www.4-hmall.org/Curriculum.aspx $15

Exploring Spaces, Going Places

New national 4-H

GIS-GPS Curriculum

on CD with web site

support

Experiential

Learning Model

Life Skill

Development

Jury Reviewed


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For example CHESAPEAKE 2000 AGREEMENT

MEANINGFUL WATERSHED EDUCATION EXPERIENCES

Goal:Promote individual stewardship and assist individuals, community-based organizations,

businesses, local governments and schools to undertake initiatives to achieve the goals

and commitments of this agreement.

Objectives:*Beginning with the class of 2005, provide a meaningful Bay or stream outdoor

experience for every school student in the watershed before graduation from high school.

*Provide students and teachers alike with opportunities to directly participate in local

restoration and protection projects, and to support stewardship efforts in school and on

school property.

GPS is a wonderful educational tool that combines

Technology and the Great Outdoors

Wetland Deliniation Area Measurement Site identification

Wildlife Mapping Investigative sampling Forest mapping

Environmental and Historical trails Community mapping ETC.


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An example of a class project:

THE MIDLOTHIAN

ROAD-KILL SURVEY


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http://www.esri.com/news/arcnews/winter0607articles/winter0607gifs/p34p2-lg.jpg


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Fun and Learning in the Great Outdoors!


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GPS is used in zoological surveys & DGIF collecting permit reports


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NAVIGATION BASICS

1. KNOW YOUR POSITION

2. PLAN YOUR ROUTE

3. STAY ON YOUR ROUTE

4. RECOGNIZE YOUR DESTINATION

GPS, in combination with map and compass, can help

make you a safe and successful wild land navigator.

Use GPS as a research planning & operations tool

and as a safety tool


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from GPS Land Navigation by Michael Ferguson

The NAVSTAR System

24+ Satellites

6 orbital plates11,000 miles up

12 hour orbit


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THE EARTH: Parallels of Latitude

Meridians of Longitude

GPS can pinpoint your

position anywhere around

the globe

the Alaskan wilderness,the South Pole

ice sheet, the

Amazon jungle, the

Australian Outback, the

plains of Kenya,

or even the wilds of theVirginia backwoods!


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LINE OF SIGHT

ERROR SOURCESMultipath interference

Atmospheric/Ionospheric

Geometric DOP

Clock

Ephemeris

Selective Availability(SA is now turned off)

and

Human Error!from GPS Land Navigation by Michael Ferguson


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HIGH SENSITIVITY ANTENNAS

Most of the newest Garmin GPS units use SiRF chip

technology to attain much greater reception in difficult

situations densely forested areas, mountainous regions,

urban canyons. Many of these models are designated with an

H in their name (for High sensitivity antenna).

FYI: Additional Garmin nomenclature sometimes includes

C for color units; S for sensor (electronic

compass/altimeter/barometer); and x for map storage using

a micro-SD card.


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Selective Availability was the intentional degradation of civilian

code GPS signals for security reasons. Shut off in May, 2000.

Plot of stationaryGPS receiverposition accuracy, before & after SA.Note the differences in scale (metric) of the plotted track logs.

8 hour period immediately after

shutoff of selective availability

5.5 hour period immediately prior

to shutoff of selective availability


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ACCURACY

STANDARD CIVILIAN RECEIVERS(Selective Availability OFF)

HORIZONTAL ACCURACY TO

15 METERS (49.2) OR BETTER

VERTICAL ACCURACY (altitude)

TO 100 METERS (328) OR BETTER


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DIFFERENTIAL GPS (DGPS)

Coast GuardCommercial Ground

& Satellite Based

CorrectionWide Area Augmentation System

(WAAS)

SYSTEMS TO IMPROVE POSITION ACCURACY


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WIDE AREA AUGMENTATION SYSTEM

FAA SPONSORED

GEO-STATIONARY SATELLITES (# 35 for us)FREE ACCESS

ACCURACY TO 3 METERS

INSTALLED ON MOST NEW (2001+) GPS

MODELS


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A SELECTION OF GPS RECEIVERS ...

GARMIN

PRODUCTS Model weusefor

BASIC

GPS

CLASSES

ETREX


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A SELECTION OF GPS RECEIVERSMagellan - Lowrance - TomTom - Cobra ...


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These three Garmin eTrex Models have

AREA MEASUREMENT CAPABILITY

(as do many other Garmin models)

VentureLegend Vista

The models we use during advancedclasses "ETREX +"


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RINO 5 models

RadioIntegrated withNavigation for the Outdoors

GPS - FRS - GMRS


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GPS DOG TRACKING SYSTEM

GARMIN ASTRO


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IPX WATERPROOF STANDARDS

IPX2 Light mist, do not immerse

IPX4 Rain, splashing water, do not immerse.

IPX7* Submerged to 1 meter for 30 minutes.

Electronics are protected if immersed, but battery

compartment may get wet. Be sure batteries and

compartment are dry before using.

*


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Combining GPS with digital mapping software

will simplify these tasks and enhance the results


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Preparing GPS Receivers for Group Activities

1. Initialize the GPS receivers outdoors (turn on and allow time to retrieve satellite

data). This should be done within a few days prior to the class. Receivers that

have not been recently used (especially if stored without batteries) could take

15 minutes or more to lock on to GPS satellites, wasting valuable class time.

2. Check to see that all receivers are set to the same desired position format and

datum. The receiver default settings usually are hdddmm.mmm (degrees and

decimal minutes) and datum WGS 84. Make sure the settings you select match

the maps that you are using.

3. Check to see that all receivers are set to the same desired north orientation (i.e.,

magnetic, true, grid, or user defined).

4. Check to see that all receivers are set to the same desired measurement units

(i.e., statute, metric, nautical).

5. You may wish to reset some or all previously recorded data, includingwaypoints, tracks, and routes.

6. Check the battery level on each unit, replace or recharge as needed.

7. Review and practice the GPS receiver manipulations necessary for the

particular activity that you are about to facilitate.


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MAP DATUMS

WGS84 World Geodetic System 1984 Defaultdatum on most GPS receivers. Most accurate worldwide

datum, but not yet in wide use on USGS topographic maps. NAD27(NAD27CONUS) North American 1927 Older

datum used on most USGS topographic maps.

NAD83 North American Datum 1983 Very

similar to WGS84. Used on newer USGS maps.

and hundreds of others around the world!

When using GPS in conjunction with a map, set the receivers datum to

match that of the map. Failure to do so may result in large position errors.


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COORDINATE SYSTEMSPosition Formats - Grid Systems

LATITUDE / LONGITUDE (ANGULAR)DEGREES-MINUTES-SECONDS (hdddmmss.s)

DECIMAL MINUTES (hdddmm.mmm) GPS default setting

DECIMAL DEGREES (hddd.ddddd)

UTM / UPS (RECTANGULAR, METRIC)UNIVERSAL TRANSVERSE MERCATOR

UNIVERSAL POLAR STEREOGRAPHICOTHERS

MILITARY GRID REFERENCE SYSTEM, TOWNSHIP &

RANGE, STATE PLANE COORDINATE, ETC.

Most USGS topographic maps contain both Lat-Long & UTM grid marks along the margins.


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Parallels of Latitude

Meridians of Longitude


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The Universal Transverse Mercator grid covers theconterminous 48 United States comprises 10 zonesfrom Zone 10

on the west coast through Zone 19 in New England.

UTM: A very useful coordinate system when using

GPS with USGS topographic maps


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UTM divides amap into perfect

metric squares.

This makes it

easier to locatepositions and

to measure

distances

on the map.


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LEGEND VENTURE - VISTA


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ENTERING COORDINATES TO CREATE

A NEW WAYPOINT INETREX +

ONMENUPAGE, SELECTMARK.

NAME IT & SELECT SYMBOL (optional) ENTER ELEVATION (optional)

ENTER COORDINATE DATA

SELECT OK AND YOURE DONE

PROJECTING COORDINATES TO CREATE


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A NEW WAYPOINT INETREX+

ONMENUPAGE SELECT FIND.

SELECT AN EXISTING WAYPOINT AND ENTER

FROM MENU OPTION, SELECTPROJECT.

NAME IT & SELECT SYMBOL (optional)

ENTER DISTANCE

ENTER BEARING

SELECT OKAND YOURE DONE

CREATE A NEW WAYPOINT BY ENTERING A BEARINGAND DISTANCE FROM YOUR CURRENT POSITION OR

ANY EXISTING WAYPOINT


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USING

THE

GARMIN

eTrexBasic Model


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NOTE: the newer eTrex units have a 5th main page - the Trip Computer page.


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ENTERING COORDINATES TO CREATE

A NEW WAYPOINT INETREX

FIND MENU PAGE

SELECT MARK NAME IT & SELECT SYMBOL (optional)

ENTER ELEVATION (optional)

ENTER COORDINATE DATA SELECT OK AND YOURE DONE



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A NEW WAYPOINT INETREX

ON MENU PAGE SELECT WAYPOINTS

SELECT AN EXISTING WAYPOINT AND ENTER

SELECT PROJECT AND ENTER

NAME IT & SELECT SYMBOL (optional)

ENTER DISTANCE

ENTER BEARING

SELECT OK AND YOURE DONE

YOU CAN ALSO CREATE A NEW WAYPOINT BY ENTERING A

BEARING AND DISTANCE FROM YOUR CURRENT POSITION OR

AN EXISTING WAYPOINT


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SPEED

TRIP

ODOMETER

TRIP TIME

SUNSET

SUNRISE

LOCATION

ELEVATION

BEARING

HEADING

MAX SPEED

AVERAGE

SPEED

Note: newer units have

additional options on the

Trip Computer page.


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USING GPS RECEIVERS & DIGITAL MAPPING SOFTWARE

AS TOOLS FOR

ENVIRONMENTAL INVESTIGATIONS

AND

NATURAL RESOURCE MANAGEMENT

AREA CALCULATION

PERIMETER MEASUREMENT

CRUISE LINES & PLOTS

OTHER SAMPLING

THE TOOLS The recreational GPS models and mapping


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THE TOOLS The recreational GPS models and mappingsoftware used in this section are affordable, available, and easy to use.

Area and Perimeter Measurements


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Area and Perimeter Measurements

Environmentalstudies often require acreage data on areas to be

sampled or surveyed. Several low-cost GPS models are now

capable of area calculation in the field. Almost all models cancalculate perimeter distance around a tract.

Using the track log generated while traversing the perimeter of

a tract, the receiver measures both enclosed area and perimeterdistance. The results can be displayed in (and instantly converted

among) units of your choice - metric, statute, nautical.

Using the route creation function, a few models can also produce

an area and perimeter estimate by linking major corner/turn

waypoints in a route sequence. This is useful in difficult terrain

where it is not possible to traverse the tract's perimeter.

AREA MEASUREMENT USING GPS RECEIVERS


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These three Garmin eTrex Models have internalarea measurement capability.Linkage to mapping software is not required.

Venture Legend Vista

AREA MEASUREMENT USING GPS RECEIVERS


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SOME OTHER GARMIN PRODUCTS WITH

INTERNAL AREA MEASUREMENT CAPABILITIES

RINO series GPS 72 GPS & 12 XL GPS 76 series GPS 60 series

AND MANY MORE NEW GARMIN MODELS

GPS V


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Area Calculaton Comparisons of March II and Garmin eTrex Venture GPS UnitsAn interesting comparison between a $4000 professional unit and a $125 recreational model.

Provided by Dick Starnes, DOF, Nottoway County

Spring, 2002

TRACT I.D. MARCH II ETREX VENTURE MARCH//GARMIN

A. 32.5 acres 32.9 acres -0.4 acres

B. 39.3 39.9 -0.6C. 12.1 12.4 -0.3

D. 20.5 21.7 -1.2

E. 34.7 35.6 -0.9

F. 21.9 22.5 -0.6

G. 6.3 6.9 -0.6

H. 3.6 3.9 -0.3

I. 24.6 25.7 -1.1


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All models

All models

AREA

MEASUREMENT:

ETREX+Venture

Legend

Vista

and new color models

Legend & Vista only

RINO

ALL

MODELS


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AREA MEASUREMENT USING ACCESSORIES

1. On Menu page, enterAccessories

2. Enter Area Calc. (area calculation triangle).

3. Highlight and pressStart(stop will appear).

4. Travel perimeter of the tract, then pressStop.

5. Record and save (as a track) if desired.

6. Clear the track log.

Area and perimeter measurements can be

displayed in in a variety of units.

AREA MEASUREMENT USING GPS TRACK LOG


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AREA MEASUREMENT USING GPS TRACK LOG

(all listed models)

1. From Menu button or page, enter Tracks.

2. Clear the track log - important !

3. Travel perimeter of area being measured.

4. Just before arrival back at starting point,stop andsave track log.

5. Highlight / enter saved track to view area

calculation using appropriate units.

Area measurements can be displayed in in

a variety of units - acres, sq.ft., sq. miles, sq.

meters, hectares, etc. GPS does conversion!

AREA MEASUREMENT USING ROUTE


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AREA MEASUREMENT USING ROUTE

(grayscale Legend & Vista only)

1. On Main Menu page, enterRoute.

2. Enter New(unless using an existing route).

3. Enter a sequence of waypoints

(first and last should

be the same).

4. Name and save the route.

5. Highlight route and selectRoute Area on the options menu.

Area measurement can be displayed in a variety of units.

Perimeter and leg distances can be viewed as selectable fields

Area Calculation using the basic eTrexmodelwith


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g

MapSource and Terrain Navigatormapping software.

Clear the track log.Travel the perimeter of area.

Save the track log.Upload the saved track

from eTrextoMapSource.

Go toMapSource track

properties to view track

length, area enclosed, leg

lengths & elevations, and

elevation profile of the track.

The inexpensive basic yellow eTrex doesnt have all the features of the more

advanced models, but it can still be used in combination with MapSource andTerrain Navigator software to generate acreage estimates and other data.

Random & Linear Sampling


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Random & Linear Sampling

Set your GPS unit and mapping software tothe UTM (Universal Transverse Mercator)

coordinate system. UTM provides a grid system

that can be reduced to one meter squares, each

with its own unique geographic-numerical

address (the UTM coordinate). This lends itself

to random sampling selection techniques.

Selected coordinates are entered into the GPSreceiver, which is then used to locate the

scattered plots in the field.

GPS can also be used in linear sampling (such

as foresters' cruise lines & plots). From any

given waypoint in the GPS receiver, a series of

new waypoints can be "projected" at selected

distances in a desired direction. From any point

on your grid you can findandgo to any points

in your survey area.

SETTING UP CRUISE LINES & PLOTS


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IN THE GPS RECEIVERNote: These instructions fit the Garmin eTrex Venture - Legend - Vista

series, the Garmin Rino series, and can be adapted to some others.

They can be performed in the field or at the office.

1. Markstarting waypoint (from which you will project a string of waypoints

- plot points - at designated distances, generally in a straight line).

2. From the starting waypoint,projectadditional points (see waypoint's menu

option list) by entering the desired bearing & distance. Name each and

save for the next steps.

Note: most GPS receivers will display projection options in only in

hundredths. The following conversion information might be useful:

0.01 miles = 52.80 ft. = 0.799 chains (thus 0.05 miles is 4 chains)0.01 kilometers = 10 meters = 0.497 chains (thus 0.02 km is about 1 chain).

[See http://www.onlineconversion.com/ for more conversion help]

(CONTINUED ON NEXT SLIDE)



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IN THE GPS RECEIVERcontinued

3. To set up the next parallel cruise line,projecta new starting waypoint at a right

angle and at the appropriate distance from the original, and thenprojectfromthis new starting waypoint as described in step #2. Repeat until you have the

survey area covered. Systematic naming of the waypoints (plot points) in each

cruise line is important to eliminate confusion (A1, A2, ... etc.; B1, B2, etc.).

4. View the parallel lines of plot points on your GPS receiver's screen to ensure

that the design of the cruise grid appears correct. Adjust as necessary -

waypoints can be moved: Findwaypoint > view Map > click once on waypoint

> drag with click stick to new position.

5. You are now ready to cruise with your GPS receiver. From the starting

waypoint - or any point on your grid -findandgo to any or all plot points in

your survey area without additional measuring and in any sequence that is

convenient.

(Note: Projecting a waypoint is one of several possible methods.

Others include "measuring distance" and "pan map" on unit's map page)



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SETTING UP CRUISE LINES & PLOTSUSING

MAPTECH TERRAIN NAVIGATOR

and GARMIN MAPSOURCE Software

1. Markstarting waypoint.

2. UseRoute tool to draw cruise lines and plots. Directions and distances

are actively displayed at the bottom of the screen. Right click to create waypoints,

edit names to provide a logical sequence (A1, A2, ...; B1, B2, etc.).3. View the parallel lines of plot points on your computer's screen to

ensure that the design of the cruise grid appears correct. Positions can be

moved/corrected by hand using the waypoint tool.

4. Transfer waypoints (plot points) to GPS receiver.

5. You are now ready to cruise with your GPS receiver. From the starting

waypoint - or any point on your grid -findandgo to any or all plot points

in your survey area without additional measuring and in any sequence

that is convenient.


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TOPOGRAPHIC MAPS


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AERIAL PHOTO TOPOGRAPHIC MAP

HIGHWAY MAPS


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HIGHWAY MAPS

VIRGINIA ROAD MAP

Latitude-Longitude coordinates & grids

ALEXIS ROAD MAP

UTM & MGRS coordinates & grids

TOPO MAP MARGIN INFO: BOTTOM CENTERTOPO MAP MARGIN INFO: BOTTOM CENTER


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O O G N N O: O O C N

TOPO MAP MARGIN INFO: BOTTOM LEFTTOPO MAP MARGIN INFO: BOTTOM LEFT


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TOPO MAP MARGIN INFO: BOTTOM RIGHTTOPO MAP MARGIN INFO: BOTTOM RIGHT


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TOPO MAP MARGIN INFO: TOP LEFTTOPO MAP MARGIN INFO: TOP LEFT


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TOPO MAP MARGIN INFO: TOP RIGHTTOPO MAP MARGIN INFO: TOP RIGHT


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TOPO MAP MARGIN INFO: TOP RIGHTTOPO MAP MARGIN INFO: TOP RIGHT

CONTOUR LINES


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CONTOUR LINES

CONTOUR LINE EXAMPLES


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A sampling of Topographic Map Symbols


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more Topographic Map Symbols


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Map

SymbolQuiz

# 1

Map Symbol Quiz # 2


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Describe notable terrain feature(s) at each number or set of numbers.

Latitude - Longitude Template


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Latitude Longitude Template

Using a UTM Grid Card


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GPS Receivers andDigital Maps


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WAYPOINTS, TRACKS, and ROUTES can be transferred

between your GPS unit and the mapping software. Data can

be easily organized, analyzed and stored inyour computer.

USING

THESETOOLS

TOGETHER

Garmin MapSource CD's


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Maps & Data for Garmin GPS Receivers

Note: The latest free MapSource update provides a direct link that allows

you to display your waypoints, tracks, and routes directly onto Google

Earth aerial and satellite photos!

See:

http://www.garmin.com/support/download_details.jsp?id=209

DIGITAL MAPPING


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DIGITAL MAPPING

Scanned USGS Topo Maps

Two scales -1:24,000 and 1:100,000

Create / Store / GPS transfer

- Waypoints

- Routes

- Tracks

Distance measurement

Area calculation

DIGITAL MAPS


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DIGITAL MAPS


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USING A


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USING A

MAGNETIC COMPASS


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1995 U.S. DECLINATION & ANNUAL CHANGE


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FOUR COMPASS STYLES ...


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BASEPLATE - MIRROR - LENSATIC - SIGHTING


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FEATURES OF THE

ORIENTEERING STYLE

BASEPLATE COMPASS


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LENSATIC COMPASS


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FromA Comprehensive Guide to Land Navigation with GPSby Noel Hotchkiss


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FromA Comprehensive Guide to Land Navigation with GPSby Noel Hotchkiss


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Compass Only

(Taking a Field Bearing)

1. Select an on-route landmark. Hold compass level and

point theDirection of Travel Arrowat the landmark.

2. Find your heading to the landmark by turning compass

dial until the Naligns with theRedend of the Needle.Read heading at theIndex Line.

3. Keep theNeedle aligned with the N. Sight and move

toward your landmark. Repeat procedure until you

reach your destination.

Another way to describe the process ...


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The Brunton Company

C & H di


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Compass & Heading

1. When given a heading in degrees, turn theDialsothe heading is set at theIndex Line. Hold compass

level with the Direction of Travel Arrow pointing

straight ahead.

2. Turn your body until the Red end of the Needle

is aligned with the N on the Dial.Travel in thisdirection.

3. Pick out a landmark in line with your heading.

Move toward it. Repeat procedure until you reach

your destination.

Compass & Map


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Compass & MapFollowing a Map Bearing:

1. Place compass on map with baseplate edge connecting where

you are (start A) and where you want to go (finish B).

2. Turn the compass Dialuntil the N alignswithMagnetic North (MN) on map.

3. Hold the compass level in front of you with theDirection of

Travel Arrowpointing straight ahead. Turn your body until

theRedend of theNeedle is directly over theRed OrientingArrow. Look up. Find a landmark. Move to it. Repeat until

you reach your destination.

Following a Map Bearing with a north-oriented map


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Step 1

Step 2


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SELECTED GPS, GIS, & LAND NAVIGATION INTERNET REFERENCES

GPS & GIS Information

Virginia Geospatial Academy http://www.cnr.vt.edu/geoacademy/


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Virginia Geospatial Academy http://www.cnr.vt.edu/geoacademy/

Virginia 4-H NREE Curriculum - GPS/GIS http://www.ext.vt.edu/resources/4h/eenr.html

GPS World Online Magazine http://www.gpsworld.com/

GPS User Magazine http://www.gpsuser.com/index.html

Geocaching - Official GPS Cache Hunt Site http://www.geocaching.com/

GeoCommunity http://www.geocomm.com/

USFS GPS Page http://www.fs.fed.us/database/gps/welcome.htmGPS Information. Net http://gpsinformation.net/

GPS Nuts http://www.gpsnuts.com/

Federal Aviation Administration - GPS http://gps.faa.gov/

GIS for Everyone http://www.esri.com/gisforeveryone/

Map & References (University of Iowa) http://www.cgrer.uiowa.edu/servers/servers_references.html

GPS Utility http://www.gpsu.co.uk/

GPS Manufacturers

Garmin International http://www.garmin.com/

Magellan Corporation http://www.magellangps.com/

Lowrance Corporation http://www.lowrance.com/outdoor/

Brunton http://www.brunton.com/

Maps & Info on Line

USGS National Mapping Information http://mapping.usgs.gov/

MapQuest http://www.mapquest.com/

MapTech http://www.maptech.com/

TopoZone http://www.topozone.com/

Digital Grove http://www.digitalgrove.net/

Google Earth http://earth.google.com/

Compass companies

Silva http://www.silvausa.com/

Brunton http://www.brunton.com/

Suunto http://www.suunto.com/

On-Line Catalogs

GPS Equipment Vendors Links Page http://www.gpsinformation.net/banners.htm

Amazon http://www.amazon.com

GPS City http://www.gpscity.com/

Adventure GPS http://www.gps4fun.com/

SafeTrac GPS & Electronics http://www.safetracgps.com/

GPS Discount http://www.gpsdiscount.com/

Forestry Suppliers http://www.forestry-suppliers.com/

Cabellas http://www.cabelas.com/


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THE END ?

NOT IF YOU HONE YOUR GPS, MAP, & COMPASS SKILLS

Questions or Suggestions?

C


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Contact:

Mike Clifford

Chair, NREE GPS-GIS Curriculum Committee

Senior Extension Agent Emeritus, Virginia Cooperative Extension - Virginia Tech

Home:

Frog Holler'

11131 Amelia Springs RoadJetersville, VA 23083

Phone: 804.561.5411

Cell: 804.615.5411

[email protected] -or- [email protected]

****************************

Frog Holler' GPS

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GPS 4-H EXPLORATIONS 2009 Powerpoint

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