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• Instrument - Spectrometers/Radiometers

  

  Instrument - Spectrometers/Radiometers

  ATSR

  The Along Track Scanning Radiometer (ATSR) on board ERS-1 and ERS-2 mission consisted of two instruments, an Infra-Red Radiometer and a Microwave Sounder.

• Instrument - Positioning/Navigation

  

  Instrument - Positioning/Navigation

  PRARE

  The Precise Range And Range-Rate Equipment (PRARE) was a microwave tracking system on board the ERS-1 and ERS-2 missions.

• Instrument - Positioning/Navigation

  

  Instrument - Positioning/Navigation

  LRR ERS

  The Laser Retro-Reflector (LRR), on board the ERS-1 and ERS-2 missions, was an optical device for accurate satellite tracking from the ground to support instrument data evaluation.

• Instrument - Imaging Radars, Scatterometers

  

  Instrument - Imaging Radars, Scatterometers

  SAR (ERS)

  The Synthetic Aperture Radar (SAR) instrument aboard ERS-1 and ERS-2 was capable of high precision change detection of surface heights.

• Instrument - Spectrometers/Radiometers

  

  Instrument - Spectrometers/Radiometers

  MWR (ERS)

  The microwave radiometer (MWR) instrument on board the ERS-1 and ERS-2 missions provided measurements of the integrated atmospheric water vapour column and cloud liquid water content.

• Instrument - Scatterometers

  

  Instrument - Scatterometers

  WS

  The Wind Scatterometer (WS) instrument, on board the ERS-1 and ERS-2 missions, obtained information on wind speed and direction over the sea surface.

• Instrument - Altimeters

  

  Instrument - Altimeters

  RA (ERS)

  The Radar Altimeter (RA) was a Ku-band (13.8 GHz) nadir-pointing active microwave sensor, on board ERS-1 and ERS-2 missions, designed to measure echoes from ocean and ice surfaces.

• Instrument - Positioning/Navigation

  

  Instrument - Positioning/Navigation

  LRR (Envisat)

  The LRR instrument aboard Envisat was used to accurately determine the orbital height of the satellite.

• Instrument - Positioning/Navigation

  

  Instrument - Positioning/Navigation

  DORIS

  DORIS was used to determine the precise location of Envisat in orbit.

• Instrument - Spectrometers/Radiometers

  

  Instrument - Spectrometers/Radiometers

  SCIAMACHY

  SCIAMACHY was an instrument aboard the Envisat satellite that measured atmospheric chemistry.

• Instrument - Altimeters

  

  Instrument - Altimeters

  RA-2

  The RA-2 instrument aboard Envisat acquired radar altimetry data over ocean, land and ice surfaces.

• Instrument - Spectrometers/Radiometers

  

  Instrument - Spectrometers/Radiometers

  MWR (Envisat)

  The MWR aboard Envisat measured integrated atmospheric water vapour column and cloud liquid water.

• Instrument - Interferometers, Spectrometers/Radiometers

  

  Instrument - Interferometers, Spectrometers/Radiometers

  MIPAS

  MIPAS was an atmospheric instrument carried aboard the Envisat satellite.

• Instrument - Spectrometers/Radiometers

  

  Instrument - Spectrometers/Radiometers

  MERIS

  The MERIS instrument aboard Envisat was primarily dedicated to providing ocean colour measurements.

• Instrument - Spectrometers/Radiometers

  

  Instrument - Spectrometers/Radiometers

  GOMOS

  GOMOS is a medium resolution spectrometer covering the wavelength range from 250 nm to 950 nm.

• Instrument - Spectrometers/Radiometers

  

  Instrument - Spectrometers/Radiometers

  ATSR-1

  ATSR-1 instrument was used for measuring sea-surface temperatures and cloud-top temperatures and vegetation monitoring.

• Instrument - Imaging Radars

  

  Instrument - Imaging Radars

  ASAR

  ASAR ensures continuity with the image mode (SAR) and the wave mode of the ERS-1/2 AMI.

• Instrument - Imaging Radars, Scatterometers

  

  Instrument - Imaging Radars, Scatterometers

  SAR (ERS-2)

  The SAR instrument aboard ERS-2 was capable of high precision change detection of surface heights.

• Instrument - Spectrometers/Radiometers

  

  Instrument - Spectrometers/Radiometers

  AATSR

  The AATSR instrument aboard Envisat was primarily designed to measure Sea Surface Temperature.

• Instrument - Lidar/Laser Sounders, Profilers/Sounders

  

  Instrument - Lidar/Laser Sounders, Profilers/Sounders

  ALADIN

  ALADIN, on board Aeolus, is a Direct Detection Doppler Wind Lidar operating in the ultraviolet range.