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Moorable spectroradiometers in the BIOWATT experimentA new oceanographic instrument, the MER-2020, has been developed for the long term measurement of bio-optical properties. This instrument is a self-contained reflectance spectroradiometer with 40 megabytes of internal data storage and battery power permitting deployments for as long as 6 months. It can serve as the control and recording center for a variety of other sensors including fluorometers, transmissometers, temperature and conductivity probes. Instruments of this type were deployed at depths to 70 meters on a 5000 meter mooring during the BIOWATT experiment between February and November 1987. Measurements of the spectral diffuse attenuation coefficient and of the remote sensed reflectance from the ten month period in 1987 in the Northern Sargasso Sea are presented. In addition, the temperature, pressure, package orientation and sunlight stimulated natural fluorescence of phytoplankton are discussed. This instrument will be a key part of in situ optical calibration for future remote color sensors, and presently permits direct measurement of long term optical variability, important in visibility and communication problems.
Document ID
19890040619
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Booth, C. R.
(Biospherical Instruments, Inc. San Diego, CA, United States)
Smith, R. C.
(California, University Santa Barbara, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Ocean Optics IX
Location: Orlando, FL
Country: United States
Start Date: April 4, 1988
End Date: April 6, 1988
Accession Number
89A27990
Funding Number(s)
CONTRACT_GRANT: NAS7-923
CONTRACT_GRANT: N00014-84-C-0832
CONTRACT_GRANT: NAGW-290
CONTRACT_GRANT: NAS7-934
Distribution Limits
Public
Copyright
Other

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