scholarly journals Multispectral in situ measurements of organic matter and chlorophyll fluorescence in seawater: Documenting the intrusion of the Mississippi River plume in the West Florida Shelf

2001 ◽  
Vol 46 (7) ◽  
pp. 1836-1843 ◽  
Author(s):  
Carlos E. Del Castillo ◽  
Paula G. Coble ◽  
Robyn N. Conmy ◽  
Frank E. Müller-Karger ◽  
Lisa Vanderbloemen ◽  
...  
Keyword(s):  
Organic Matter ◽  
Chlorophyll Fluorescence ◽  
Mississippi River ◽  
River Plume ◽  
In Situ Measurements ◽  
West Florida Shelf ◽  
The West ◽  
Florida Shelf ◽  
Mississippi River Plume

Detection of Karenia brevis blooms on the west Florida shelf using in situ backscattering and fluorescence data

Harmful Algae ◽  
2009 ◽  
Vol 8 (6) ◽  
pp. 898-909 ◽  
Author(s):  
Jennifer P. Cannizzaro ◽  
Chuanmin Hu ◽  
David C. English ◽  
Kendall L. Carder ◽  
Cynthia A. Heil ◽  
...  
Keyword(s):  
Karenia Brevis ◽  
West Florida Shelf ◽  
The West ◽  
Florida Shelf

scholarly journals Current Patterns on the West Florida Shelf from Joint Self-Organizing Map Analyses of HF Radar and ADCP Data

2007 ◽  
Vol 24 (4) ◽  
pp. 702-712 ◽  
Author(s):  
Yonggang Liu ◽  
Robert H. Weisberg ◽  
Lynn K. Shay
Keyword(s):  
Hf Radar ◽  
Ocean Current ◽  
Self Organizing Map ◽  
West Florida Shelf ◽  
The West ◽  
Florida Shelf ◽  
Buoyancy Forcing ◽  
Temporal Structures ◽  
Self Organizing

Abstract To assess the spatial structures and temporal evolutions of distinct physical processes on the West Florida Shelf, patterns of ocean current variability are extracted from a joint HF radar and ADCP dataset acquired from August to September 2003 using Self-Organizing Map (SOM) analyses. Three separate ocean–atmosphere frequency bands are considered: semidiurnal, diurnal, and subtidal. The currents in the semidiurnal band are relatively homogeneous in space, barotropic, clockwise polarized, and have a neap-spring modulation consistent with semidiurnal tides. The currents in the diurnal band are less homogeneous, more baroclinic, and clockwise polarized, consistent with a combination of diurnal tides and near-inertial oscillations. The currents in the subtidal frequency band are stronger and with more complex patterns consistent with wind and buoyancy forcing. The SOM is shown to be a useful technique for extracting ocean current patterns with dynamically distinctive spatial and temporal structures sampled by HF radar and supporting in situ measurements.

scholarly journals On the dispersal of riverine colored dissolved organic matter over the West Florida Shelf

2000 ◽  
Vol 45 (6) ◽  
pp. 1425-1432 ◽  
Author(s):  
Carlos E. Del Castillo ◽  
Fernando Gilbes ◽  
Paula G. Coble ◽  
Frank E. Müller-Karger
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Colored Dissolved Organic Matter ◽  
West Florida Shelf ◽  
The West ◽  
Florida Shelf

scholarly journals Effects of high-molecular-weight dissolved organic matter on nitrogen dynamics in the Mississippi River plume

1996 ◽  
Vol 133 ◽  
pp. 287-297 ◽  
Author(s):  
WS Gardner ◽  
R Benner ◽  
RMW Amon ◽  
JB Cotner ◽  
JF Cavaletto ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
High Molecular Weight ◽  
Mississippi River ◽  
Nitrogen Dynamics ◽  
River Plume ◽  
Mississippi River Plume

scholarly journals Dispersal of the Suwannee River plume over the West Florida shelf: Simulation and observation of the optical and biochemical consequences of a flushing event

2003 ◽  
Vol 30 (13) ◽  
Author(s):  
Jason K. Jolliff ◽  
John J. Walsh ◽  
Ruoying He ◽  
Robert Weisberg ◽  
Antoya Stovall-Leonard ◽  
...  
Keyword(s):  
River Plume ◽  
West Florida Shelf ◽  
The West ◽  
Florida Shelf ◽  
Suwannee River

KNOWLEDGE-GUIDED CLASSIFICATION OF COASTAL ZONE COLOR IMAGES OFF THE WEST FLORIDA SHELF

2000 ◽  
Vol 14 (08) ◽  
pp. 987-1007 ◽  
Author(s):  
MINGRUI ZHANG ◽  
LAWRENCE O. HALL ◽  
DMITRY B. GOLDGOF ◽  
FRANK E. MÜLLER-KARGER
Keyword(s):  
Knowledge Base ◽  
Coastal Zone ◽  
Spatial Information ◽  
River Plume ◽  
Color Images ◽  
Red Tides ◽  
West Florida Shelf ◽  
The West ◽  
Florida Shelf

A knowledge-guided approach to automatic classification of Coastal Zone Color images off the West Florida Shelf is described. The approach is used to identify red tides on the West Florida Shelf, as well as areas with high concentration of dissolved organic matter such as a river plume found seasonally along the West Florida coast over the middle of the shelf. The Coastal Zone Color images are initially segmented by the unsupervised Multistage Random Sampling Fuzzy c-Means algorithm. Then, a knowledge-guided system is applied to the centroid values of resultant clusters to label case I, case II waters, a dilute river plume ("green river"), and red tide. The domain knowledge base contains information on cluster distribution in feature space, as well as spatial information such as bathymetry data. Our knowledge base consists of a rule-guided system and an embedded neural network. From 60 images, after training the system, this procedure recognizes all 15 images which contained a river plume and 45 images without. The system can correctly classify 74% of the pixels that belong to the river plume, which provides a substantial advantage to users looking for offshore extensions of riverine influence. Red tides are also successfully identified in a time series of images for which ground truth confirmed the presence of a harmful bloom.

A Lagrangian view of fluorescent chromophoric dissolved organic matter distributions in the Mississippi River plume

2004 ◽  
Vol 89 (1-4) ◽  
pp. 225-239 ◽  
Author(s):  
Gary L Hitchcock ◽  
Robert F Chen ◽  
G.Bernard Gardner ◽  
William J Wiseman
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Mississippi River ◽  
River Plume ◽  
Chromophoric Dissolved Organic Matter ◽  
Mississippi River Plume
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