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Interpretation of Seafloor Topologies Based on IKONOS Satellite Imagery of a Shallow-Marine Carbonate Platform: Florida Bay to the Florida Reef Tract

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Date Issued:
2011
Summary:
The shallow low-energy waters of the extensive coastal zone in sub-tropical south Florida permits the discrimination of seabed features and benthic covers acquired from remotely sensed data. 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, 17 Morphodynamic Zones, 11 Geoforms, 38 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. Digital classification of environments is executed by the analyst contingent with the grouping of relative spectral reflectance, color tone variations, and the texture and pattern of the benthic unit. The mapping area incorporates a large diversity of geomorphic forms that range from coastal plains in the southern Florida Peninsula to coral reef formations along the Florida Reef Tract (FRT). The context of each Morphodynamic Zone is characterized by the content and areal distribution (in km2) of geomorphic forms and biological covers. Florida Bay is the most widely distributed Realm and is largely characterized by polygonal lattices of salient sediment banks and sediment flats. Over 58% of the mapping area is occupied by sediment flats, and seagrasses are colonized in almost 80% of the topologies.
Title: Interpretation of Seafloor Topologies Based on IKONOS Satellite Imagery of a Shallow-Marine Carbonate Platform: Florida Bay to the Florida Reef Tract.
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Name(s): Steimle, J.T.
Finkl, Jr., Charles W.
Type of Resource: text
Date Issued: 2011
Physical Form: application/pdf
Extent: 6 p.
Language(s): English
Summary: The shallow low-energy waters of the extensive coastal zone in sub-tropical south Florida permits the discrimination of seabed features and benthic covers acquired from remotely sensed data. 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, 17 Morphodynamic Zones, 11 Geoforms, 38 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. Digital classification of environments is executed by the analyst contingent with the grouping of relative spectral reflectance, color tone variations, and the texture and pattern of the benthic unit. The mapping area incorporates a large diversity of geomorphic forms that range from coastal plains in the southern Florida Peninsula to coral reef formations along the Florida Reef Tract (FRT). The context of each Morphodynamic Zone is characterized by the content and areal distribution (in km2) of geomorphic forms and biological covers. Florida Bay is the most widely distributed Realm and is largely characterized by polygonal lattices of salient sediment banks and sediment flats. Over 58% of the mapping area is occupied by sediment flats, and seagrasses are colonized in almost 80% of the topologies.
Identifier: FAUIR000370 (IID)
Note(s): Steimle, J.T. and Finkl, C.W., 2011. Interpretation of seafloor topologies based on IKONOS satellite imagery of a shallow-marine carbonate platform: Florida Bay to the Florida Reef Tract. Journal of Coastal Research, SI 64 (Proceedings of the 11th International Coastal Symposium), 􀀛􀀕􀀘􀀃–􀀃􀀛􀀖􀀓. Szczecin, Poland, ISSN 0749-0208
Persistent Link to This Record: http://purl.flvc.org/fau/fd/FAUIR000370
Host Institution: FAU

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