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Title: Measuring high spectral resolution specific absorption coefficients for use with hyperspectral imagery

Abstract

A portable, long path length (50 cm), flow through, absorption tube system is utilized to obtain in-situ specific absorption coefficients from various water environments consisting of both clear and turbid water conditions from an underway ship or vessel. The high spectral resolution absorption signatures can be obtained and correlated with measured water quality parameters along a ship track. The long path cuvette system is capable of measuring important water quality parameters such as chlorophyll-a, seston or total suspended matter, tannins, humics, fulvic acids, or dissolved organic matter (dissolved organic carbon, DOC). The various concentrations of these substances can be determined and correlated with laboratory measurements using the double inflection ratio (DIR) of the spectra based upon derivative spectroscopy. The DIR is determined for all of the possible combinations of the bands ranging from 362-1115 nm using 252 channels, as described previously by Bostater. The information gathered from this system can be utilized in conjunction with hyperspectral imagery that allows one to relate reflectance and absorption to water quality of a particular environment. A comparison is made between absorption signatures and reflectance obtained from the Banana River, Florida.

Authors:
;  [1]
  1. Florida Institute of Technology, Melbourne, FL (United States)
Publication Date:
OSTI Identifier:
478137
Report Number(s):
CONF-970319-
TRN: 97:002802-0030
Resource Type:
Conference
Resource Relation:
Conference: 4. thematic international conference on remote sensing for marine and coastal environments: technology and applications, Orlando, FL (United States), 17-19 Mar 1997; Other Information: PBD: 1997; Related Information: Is Part Of Proceedings of the fourth international conference on remote sensing for marine and coastal environments. Technology and applications: Volume I; PB: 741 p.
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 54 ENVIRONMENTAL SCIENCES; WATER; ABSORPTION SPECTROSCOPY; OPTICAL SPECTROMETERS; PERFORMANCE TESTING; WATER QUALITY; TEFLON; GLASS

Citation Formats

Keller, M., and Bostater, C. Measuring high spectral resolution specific absorption coefficients for use with hyperspectral imagery. United States: N. p., 1997. Web.
Keller, M., & Bostater, C. Measuring high spectral resolution specific absorption coefficients for use with hyperspectral imagery. United States.
Keller, M., and Bostater, C. Sun . "Measuring high spectral resolution specific absorption coefficients for use with hyperspectral imagery". United States.
@article{osti_478137,
title = {Measuring high spectral resolution specific absorption coefficients for use with hyperspectral imagery},
author = {Keller, M. and Bostater, C.},
abstractNote = {A portable, long path length (50 cm), flow through, absorption tube system is utilized to obtain in-situ specific absorption coefficients from various water environments consisting of both clear and turbid water conditions from an underway ship or vessel. The high spectral resolution absorption signatures can be obtained and correlated with measured water quality parameters along a ship track. The long path cuvette system is capable of measuring important water quality parameters such as chlorophyll-a, seston or total suspended matter, tannins, humics, fulvic acids, or dissolved organic matter (dissolved organic carbon, DOC). The various concentrations of these substances can be determined and correlated with laboratory measurements using the double inflection ratio (DIR) of the spectra based upon derivative spectroscopy. The DIR is determined for all of the possible combinations of the bands ranging from 362-1115 nm using 252 channels, as described previously by Bostater. The information gathered from this system can be utilized in conjunction with hyperspectral imagery that allows one to relate reflectance and absorption to water quality of a particular environment. A comparison is made between absorption signatures and reflectance obtained from the Banana River, Florida.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jun 01 00:00:00 EDT 1997},
month = {Sun Jun 01 00:00:00 EDT 1997}
}

Conference:
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