Title :
Estimation of Ocean Water Chlorophyll-a Concentration Using Computational Intelligence
Author :
Ressom, H.W. ; Turner, K. ; Musavi, M.T.
Author_Institution :
Dept. of Biostat., Bioinformatics, & Biomath., Georgetown Univ., Washington, DC
Abstract :
In this paper, we present a computational method to estimate chlorophyll a (Chl a) concentration from remotely sensed reflectance (Rrs) measurements. The proposed method integrates two computational intelligence paradigms, a fuzzy c-means (FCM) cluster analysis and an ensemble of artificial neural networks (ANNs). This approach will be particularly useful in estimating Chl a concentration from Rrs measured at various locations representing heterogeneous water types. The performance of the proposed method is compared with the traditional approach, where a single ANN is used for all water types. We showed that the cluster-based approach has the potential to build a more global Chl a prediction model
Keywords :
fuzzy logic; geophysics computing; neural nets; oceanographic techniques; remote sensing; statistical analysis; ANNs; FCM cluster analysis; artificial neural networks; chlorophyll-a concentration; computational intelligence method; fuzzy c-means; global chlorophyll-a prediction model; heterogeneous water types; ocean water; remotely sensed reflectance measurements; Biomedical optical imaging; Clustering algorithms; Color; Computational intelligence; Nonlinear optics; Oceans; Optical sensors; Reflectivity; Sea measurements; Water;
Conference_Titel :
OCEANS 2006
Conference_Location :
Boston, MA
Print_ISBN :
1-4244-0114-3
Electronic_ISBN :
1-4244-0115-1
DOI :
10.1109/OCEANS.2006.307025