Our Place on Planet Earth Using GPS - PowerPoint PPT Presentation

1 / 11
About This Presentation
Title:

Our Place on Planet Earth Using GPS

Description:

... elevation, latitude, longitude & time ... Time Zones result from ... zone, or 15 degrees longitude away from Greenwich, England to convert to local time. ... – PowerPoint PPT presentation

Number of Views:66
Avg rating:3.0/5.0
Slides: 12
Provided by: moo70
Category:
Tags: gps | earth | place | planet | time | using | zones

less

Transcript and Presenter's Notes

Title: Our Place on Planet Earth Using GPS


1
Our Place on Planet EarthUsing GPS Satellites
to Zero in on OKeeffe Middle School
  • Russia launched the first satellite in 1957
    (SPUTNIK)
  • In 1959, scientists at the UW-Madison conducted
    pioneering meteorological satellite experiments
    under the direction of Dr. Verner E. Suomi, the
    Father of Satellite Meteorology.
  • U.S. launched the first weather satellite in 1960
    (Tiros I)
  • GPS - Global Positioning Systems
  • Uses satellites and geometry to find latitude
    longitude

2
GPS Global Positioning Systems
  • A GPS is a hand-held receiver that can establish
    location in latitude and longitude by
    triangulating radio signals sent out from
    satellites.

3
The Global Positioning System Consists of 24 to
28 GPS satellites in operational orbit 12,500
miles (20,200 km) in space.
  • At this altitude, satellites take 12 hours to
    complete one orbit.
  • Satellites are spaced so that at least 4 are are
    overhead at any one time.
  • These satellites send out radio signals that
    hand-held GPS receivers use to establish the
    location (and elevation) by triangulation.

4
4 satellites to determine elevation, latitude,
longitude time
5
The Earth is a sphere which looks like a circle.
A circle is comprised of
360 degrees
  • Latitude is measured from the equator to the
    poles. (90 degrees north south)
  • Longitude is measured from west to east. (360o)
  • Time Zones result from
  • dividing 360 degrees by 24 hours to get 15,
    which is why we add one hour for every time zone,
    or 15 degrees longitude away from Greenwich,
    England to convert to local time.

6
Degrees on a satellite map photo
  • This is a NOAA satellite weather map photo of the
    Northwest U.S.
  • with lines of latitude and longitude.
  • (50º N latitude top, 40º N middle)
  • (120º west longitude N-S through CA)
  • Latitude and longitude are measured in degrees
    (degree symbol º)
  • based on the circle of the Earth.
  • Each degree is made up of 60
  • minutes, or 60'.
  • Each minute degree is made
  • up of 60 seconds, or 60".

7
Georgia OKeeffe is a GLOBE school
8
  • GLOBE is a hands-on environmental science and
    education program involving students in primary
    and secondary schools throughout the world.

9
GLOBE Schools and Countries
10
GLOBE Measurement Areas
  • Atmosphere/Climate
  • Hydrology/Water Quality
  • Soil
  • Land Cover
  • Phenology
  • Other

11
OKeeffe Atmosphere Shelter
  • On Thorton Street, but where?
  • (need GPS to find Latitude longitude)
  • Not optimally located since its close to the
    school building but we can document it in
    metadata (data about data)
Write a Comment
User Comments (0)
About PowerShow.com