AVIRIS calibration and application in coastal oceanic environments

The Airborne Visible-Infrared Imaging Spectrometer (AVIRIS) is a test-bed for future spacecraft sensors such as the High-Resolution Imaging Spectrometer and the Moderate-Resolution Imaging Spectrometers planned for the Earth Observing System. To use this sensor for ocean applications, S/N was increa...

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Bibliographic Details
Published in:Remote sensing of environment 1993-05, Vol.44 (2), p.205-216
Main Authors: Carder, Kendall L., Reinersman, Phillip, Chen, Robert F., Muller-Karger, Frank, Davis, Curtiss O., Hamilton, Michael
Format: Article
Language:English
Subjects:
540320 - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-)
AIRCRAFT
CALIBRATION
COASTAL WATERS
DEVELOPED COUNTRIES
Earth, ocean, space
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL SCIENCES
Exact sciences and technology
External geophysics
FLORIDA
Geophysics. Techniques, methods, instrumentation and models
Marine
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
NORTH AMERICA
PARTICLES
PARTICULATES
PLUMES
POLLUTION
REMOTE SENSING
SPECTROMETERS
SURFACE WATERS
USA
WATER POLLUTION
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Summary:The Airborne Visible-Infrared Imaging Spectrometer (AVIRIS) is a test-bed for future spacecraft sensors such as the High-Resolution Imaging Spectrometer and the Moderate-Resolution Imaging Spectrometers planned for the Earth Observing System. To use this sensor for ocean applications, S/N was increased by spatial averaging of images. Post-flight recalibration was accomplished by measuring in in situ the water-leaving radiance at flight time, modeling its transmission to the aircraft, and adding modeled atmospheric radiance to that value. The preflight calibration curve was then adjusted until aircraft and modeled total radiance values matched. Water-leaving radiance values from the recalibrated AVIRIS imagery were consistent with in situ data supporting the validity of the approach. Imagery of the absorption coefficient at 415 nm and backscattering coefficient at 671 nm were used to depict the dissolved and particulate constituents of the Tampa Bay plume during late, ebb-tidal conditions.
ISSN:0034-4257
1879-0704
DOI:10.1016/0034-4257(93)90016-Q