Accession Number : ADA464758


Title :   Derivative Analysis of Absorption Features in Hyperspectral Remote Sensing Data of Carbonate Sediments


Descriptive Note : Journal article


Corporate Author : ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE MIAMI FL


Personal Author(s) : Louchard, Eric M ; Reid, R P ; Stephens, Carol F ; Davis, Curtiss O ; Leathers, Robert A ; Downes, T V ; Maffione, Robert


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a464758.pdf


Report Date : 30 Dec 2002


Pagination or Media Count : 13


Abstract : This study uses derivative spectroscopy to assess qualitative and quantitative information regarding seafloor types that can be extracted from hyperspectral remote sensing reflectance signals. Carbonate sediments with variable concentrations of microbial pigments were used as a model system. Reflectance signals measured directly over sediment bottoms were compared with remotely sensed data from the same sites collected using an airborne sensor. Absorption features associated with accessory pigments in the sediments were lost to the water column. However major sediment pigments, chlorophyll a and fucoxanthin, were identified in the remote sensing spectra and showed quantitative correlation with sediment pigment concentrations. Derivative spectra were also used to create a simple bathymetric algorithm.


Descriptors :   *SEDIMENTS , *REMOTE DETECTION , *CARBONATES , REPRINTS , SPECTROSCOPY , HYPERSPECTRAL IMAGERY , OCEAN BOTTOM , CONCENTRATION(COMPOSITION) , REFLECTANCE , PIGMENTS


Subject Categories : Inorganic Chemistry
      Physical and Dynamic Oceanography
      Target Direction, Range and Position Finding


Distribution Statement : APPROVED FOR PUBLIC RELEASE