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Satellite Images. Visible Images. Reflected and scattered solar light 0.4-0.7  m Light area = high Albedo Lots of backscattering = high albedo Stratus=bright Cirrus =grey. IR Images. Terrestrial radiation 10-12  m light area =cold surface Dark areas = warmer surface

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PowerPoint Slideshow about 'Satellite Images' - liseli


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Visible images
Visible Images

  • Reflected and scattered solar light

  • 0.4-0.7 m

  • Light area = high Albedo

  • Lots of backscattering = high albedo

  • Stratus=bright

  • Cirrus =grey


Ir images
IR Images

  • Terrestrial radiation

  • 10-12 m

  • light area =cold surface

  • Dark areas = warmer surface

  • Stratus=grey

  • Cirrus =bright


Water vapor images
Water vapor images

  • Emission by water vapor

  • 6.5-6.9 m

  • light area =lots of water vapor

  • Dark areas = dry air

  • 300-600 mb level

  • Strong contrast = strong upper winds

  • High clouds (cumulonimbus calvus) =bright



Satellite images


Satellite orbits
Satellite orbits

  • Geostationary satellites (GOES, GEO)

    • 35500 km (22 236 miles)

    • 24 h period

  • Geostationary satellite server: http://www.goes.noaa.gov/


Satellite orbits1
Satellite orbits

  • Polar satellites (POES), low earth orbit (LEO)

    • 14 revolutions a day

    • 833 km height

  • NOAA-11, NOAA-14

  • http://noaasis.noaa.gov/NOAASIS/ml/genlsatl.html


Comparison goes poes
Comparison GOES/POES

  • GOES

  • Constant viewing angle

  • Complete terrestrial surface is visible

  • No polar view

  • Less detailed

  • POES

  • Very detailed

  • View of polar regions

  • Limited data (out of range)

  • Shifting orbit


Visible infrared water vapor images
Visible, infrared, water vapor images

  • Visible: 0.4 to 0.76 m

  • IR: 10-12 m atmospheric window

  • Water vapor: 6.7 m

  • http://www.goes.noaa.gov/