Current Search: Marine sediments -- Florida -- Remote sensing (x)
-
-
Title
-
Analysis of nearshore turbidity plumes using passive multispectral archive satellite data: Interactions of tidal current and bathymetry in Broward County, Florida.
-
Creator
-
DaPrato, Gary Wayne., Florida Atlantic University, Finkl, Charles W.
-
Abstract/Description
-
The interaction of tidal currents and bathymetry in the nearshore environment is investigated as an essential component in the study of cross-shore turbidity plumes. Clay and silt-sized grains which comprise a minor portion of natural beaches and artificial fills are modulated through the water column by nearshore currents. Tidal jets and undertow currents are forcing factors in the expansion of circulation currents that carry fine-grained suspended sediments offshore in large mega-plumes....
Show moreThe interaction of tidal currents and bathymetry in the nearshore environment is investigated as an essential component in the study of cross-shore turbidity plumes. Clay and silt-sized grains which comprise a minor portion of natural beaches and artificial fills are modulated through the water column by nearshore currents. Tidal jets and undertow currents are forcing factors in the expansion of circulation currents that carry fine-grained suspended sediments offshore in large mega-plumes. Enhanced contextual coverages from satellite imagery delineating plume morphology show a strong relationship between bathymetry and tidal current. The forces exerted by tidal action and frictions resisting this movement are examined by incorporating techniques of image processing, modeling, and statistical analysis in a GIS database environment. This analysis examines an experimental anisotropic cost distance algorithm that is utilized in the modeling of turbidity plumes to better understand the dispersion of suspended sediments in coastal Broward County.
Show less
-
Date Issued
-
1995
-
PURL
-
http://purl.flvc.org/fcla/dt/15154
-
Subject Headings
-
Remote sensing--Florida--Broward County, Coastal zone management--Florida--Broward County, Marine sediments--Florida, Turbidity currents
-
Format
-
Document (PDF)
-
-
Title
-
Interpretation of seafloor topologies based on IKONOS satellite imagery of a shallow-marine carbonate platform: Florida Bay to the Florida Reef Tract.
-
Creator
-
Steinle, Jacob Thomas., Charles E. Schmidt College of Science, Department of Geosciences
-
Abstract/Description
-
A benthic environments classification system is devised from digital interpretations of multi-spectral IKONOS satellite imagery for 1,360 km2 of the carbonate platform and presented in a comprehensive digitized map. The classification scheme is designed as a 7th order hierarchical structure that integrates 5 Physiographic Realms, 24 Morphodynamic Zones, 11 Geoforms, 39 Landforms, 6 dominant surface sediment types, 9 dominant biological covers and 3 densities of biological covers for the...
Show moreA benthic environments classification system is devised from digital interpretations of multi-spectral IKONOS satellite imagery for 1,360 km2 of the carbonate platform and presented in a comprehensive digitized map. The classification scheme is designed as a 7th order hierarchical structure that integrates 5 Physiographic Realms, 24 Morphodynamic Zones, 11 Geoforms, 39 Landforms, 6 dominant surface sediment types, 9 dominant biological covers and 3 densities of biological covers for the description of benthic environments. Digital analysis of the high-resolution (4 m) IKONOS imagery employed ESRI's ArcMap to manually digitize 412 mapping units at a scale of 1:6,000 differentiated by spectral reflectance, color tones, and textures of seafloor topologies. The context of each morphodynamic zone is characterized by the content and areal distribution (in km2) of geomorphic forms and biological covers. Over 58% of the mapping area is occupied by sediment flats, and seagrasses are colonized in almost 80% of the topologies.
Show less
-
Date Issued
-
2011
-
PURL
-
http://purl.flvc.org/FAU/3174075
-
Subject Headings
-
Submarine topography, Marine sediments, Remote sensing, Marine ecosystem management, Ocean bottom, Sampling, Ocean bottom, Sampling, Coral reef ecology
-
Format
-
Document (PDF)
