Optical SOLO Autonomous Profiler Development and Operation Deployment in the Japan-East Sea

Abstract

We developed a unique system, called K-SOLO, that is an integration of the Sounding Oceanographic Lagrangian Observer (SOLO) and a profiling 3-wavelength downwelling irradiance% (Ed) sensor (Biospherical Instruments PER-300). The system measures temperature and allows calculation of spectral diffuse attenuation coefficients (K) at 380, 490 and 555 nm from the depth derivative of downwelling irradiance (e.g. K = -1/ED dEd/dz). Data is relayed via satellite when the unit is on the surface. By measuring K rather than absolute radiometric quantities or inherent optical properties, the system is not sensitive to changes in calibration or bio-fouling. K-SOLO was deployed from RN Khromov in the Sea of Japan near 410 degrees N and 1340 degrees E in March, 2000 and transmitted profiled data every second day until the middle of August, 2000. The unit was caught by a Japanese fishing vessel and recently returned to SIO. The SOLO unit suffered major damage and can not be re-utlized. The radiometer is being assessed. 15. TERMS

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Document Details

Document Type
Technical Report
Publication Date
Aug 10, 2001
Accession Number
ADA393888

Entities

People

  • B. G. Mitchell
  • Jeffrey T. Sherman

Organizations

  • Scripps Institution of Oceanography

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Attenuation
  • Calibration
  • Coefficients
  • Deployment
  • Electronic Mail
  • Layers
  • Measurement
  • Observers
  • Oceans
  • Optical Properties
  • Phytoplankton
  • Remote Sensing
  • Stratification
  • Surface Temperature
  • Surface Waters
  • Water

Fields of Study

  • Environmental science

Readers

  • Atmospheric Remote Sensing.
  • Computer Engineering

Technology Areas

  • Space