Remote Sensing . Lecture 8

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Lecture 8 Content

• Other Satellites

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Lecture content

• Moderate resolution land satellites
• High resolution land satellites
• Hyperspectral satellite systems
• Meteorological satellites
• Ocean monitoring satellite
• Earth Observing system
• Space station remote station

In this lecture the group of satellites in white
text are presented in your text book while those
in yellow text are briefly summarized in this
lecture
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• Moderate resolution land satellites
• Examples
• IRS System
• Resurs-01
• ADEOS
• JERS-1

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• IRS System
• Indian Remote Sensing (IRS) program
• IRS-1A launched in 1988 and IRS-1B in 1991
• Satellites are equipped with MSS
• Second generation of IRS satellite operation
  began with the launch of IRS-1C and IRS-1D, 1995
  and 1997 respectively
• Carry three sensors

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• RESURS-01
• Russian satellite
• Launched first series in 1985
• Operated for 3 years and a second satellite
  launched in 1988 which served for 7 years
• Third satellite began in 1994

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• Satellites carry MSS with spatial resolution of
  170m in four visible and near IR bands
• From 678km, the system has a revisit interval of
  4 days
• Size of the scene is 600x600km

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• ADEOS
• Japanese satellite
• Advanced Earth Observing Satellite (ADEOS),
  launched in 1996
• Carry two primary sensing systems
• Advanced Visible and Near Infrared Radiometer
  (AVNIR)
• Ocean Color and Temperature Sensor (OCTS)
• AVNIR data collected in four-band MS mode
• OCTS records 8 bands in the visible and near IR
  and 4 bands in the thermal region

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• JERES-1
• Primarily as a radar remote sensing mission
• Launched in 1992
• Carried an Optical Sensor (OPS) which captures
  spatial resolution of 18x24m
• Employs pushbroom scanning in 7 bands in the
  visible, near IR, and mid-IR

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• High Resolution land satellites
• Numerous launched, or are in development
• Examples
• SPIN-2
• IKONOS
• QuickBird
• OrbView-3
• EROS

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• SPIN-2
• Russian (first mission in 1998)
• Space Information-2 Meter (SPIN-2)
• Data is produced by digitizing panchromatic
  photographs taken by a particular camera called
  KUR-1000
• Altitude of 220m
• Individual scenes of 40x160km

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• IKONOS
• Launched in 1999
• Repeats every 11 days
• Image coverage is 11x11km
• Collects data in four bands at a ground
  resolution of 4m
• System is highly maneuverable (can zoom in and
  out)

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• QuickBird
• By EarthWatch Inc.
• Launched in 2001
• High resolution data obtained at an altitude of
  600km
• Average revisit time is 1 to 5 days
• 1m resolution panchromatic sensor and the four
  band sensor with a resolution of 4m

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• OrbView-3
• By ORBIMAGE
• Launch in mid-2000
• Altitude of 420km
• Repetition is less than 1.5 days with OrbView-3
  and OrbView-4 operating simultaneously
• Includes panchromatic band (1m resolution), and
  four MS bands (3m resolution)

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• EROS
• By ImageSat International
• Joint between Israel Aircraft Industries and Core
  Software Technologies
• Two EROS A, launched in 2000, and 2001
• Pushbroom scanning by these panchromatic systems
• Resolution of 1.8m and 16km swath width

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• Meteorological satellites
• Assist in weather prediction and monitoring
• Use sensors that have coarse spatial resolution
• Various countries have launched various metsats
• Three well known metsats (US based are
• National Oceanic and Atmospheric Administration
  (NOAA)
• Geostationary Operational Environmental Satellite
  (GOES)
• Defense Meteorological Satellite Program (DMSP)
• All carry a range of meteorological sensors

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• Ocean monitoring satellites
• 2/3 of the earth is covered by water
• Satellites provide synoptic views of the oceans
  over large areas and extended over time
• Examples
• Seasat
• Operate in the microwave portion of the spectrum
• Nimbus-7
• Also called Coastal Zone Color Scanner (CZCS)
• Measures color and temperature of coastal zones
• Carry ocean specific sensors

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• The End