Share Email Print
cover

Proceedings Paper

Imaging spectroscopy for coastal biogeochemistry of estuaries and plumes
Author(s): M. Shimoni; M. Acheroy
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The coastal zone is an extremely dynamic system. Variations in the concentration of its major constituents occur rapidly over space and time. This is in response to changes in bathymetry and tidal forces coupled with the influences of fronts, upwelling zones and river inflow. Today's research on the functioning of estuarine and coastal ecosystems, as well as attempts to quantify some of their biogeochemical fluxes are based on highly time consuming and costly sea campaigns and laboratory analyses. On September 2002, an airborne campaign using CASI sensor covered part of the Scheldt estuary (Belgium- Netherlands coastal zone). A 13 sampling stations field survey was realised in order to cover as quickly as possible the wide range of water quality encountered from the mouth of the estuary to the outer limit of the plume. Correlation was searched between classical ground truth measurements and the rich information provided by numerous CASI-SWIR spectral bands carefully chosen. These relations were not sufficient enough to derive synoptic view of the spatial distribution of many biogeochemical parameters in the Scheldt estuary and plume. In this research we found that some biogeochemical parameters of interest in estuaries and plumes that were retrieved using imaging spectroscopy techniques as the MF (Matched filtering) and the MTMF (Mixture Tuned Matched Filtering) are very encouraging. We showed that using those spectra based processing techniques we could accurately obtained the concentration distribution of suspended particulate matter (SPM) and particulate organic matter (POM), that we could not retrieved using the classical statistical techniques. Moreover, using the imaging spectroscopy techniques we significantly improved the coloured dissolved organic matter (CDOM) concentration classification, relatively to the results derived using the multiple regression technique.

Paper Details

Date Published: 13 October 2006
PDF: 10 pages
Proc. SPIE 6360, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2006, 636004 (13 October 2006); doi: 10.1117/12.689992
Show Author Affiliations
M. Shimoni, Royal Military Academy (Belgium)
M. Acheroy, Royal Military Academy (Belgium)


Published in SPIE Proceedings Vol. 6360:
Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2006
Charles R. Bostater Jr.; Xavier Neyt; Stelios P. Mertikas; Miguel Vélez-Reyes, Editor(s)

© SPIE. Terms of Use
Back to Top