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Downwelling Irradiance Sensor

The downwelling irradiance sensor mounts on the roof of a manned or unmanned aircraft and continually measures the spectrum and magnitude of the solar illumination during a data collect. The sensor captures variations in the irradiance due to the diurnal cycle, clouds, or aerosols, and is used for accurate determination of the spectral reflectance of targets. The additional information that the sensor provides is essential for such applications as determining ocean "color".

  • Timestamped spectral irradiance measurements for aerial data collects
  • Integrated cosine diffuser, optical fiber, and spectrometer
  • Shutter for automatic dark field correction
  • Light tight enclosure with USB interface
  • UV-VIS, VNIR and SWIR options
  • Automatically synchronized to the HyperScan sensor
  • Software tools to convert raw data to calibrated irradiance
   
Downwelling Irradiance Sensor
Downwelling Irradiance Sensor
   
   
Downwelling Irradiance Sensor on roof of Cessna 206
Downwelling Irradiance Sensor on roof of Cessna 206
   
   

   
   
Cosine Correction Response Curve
Cosine Correction Response Curve
   
   

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System Features

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