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Author: Brian K. Walker Publisher: ISBN: Category : Benthos Languages : en Pages : 56
Book Description
"This report describes the methodologies, analyses, and results for an independent accuracy assessment of a thematic benthic habitat map produced by NOAA for the Florida Keys. It is an analysis of four regional accuracy assessments. Over the course of the Florida Keys mapping project, NOAA amended part of the classification scheme. The original scheme for mapping benthic cover was a tiered approach where certain benthic cover categories were given priority over others (e.g. coral was most important). Recently, this was modified to a dominant benthic cover scheme where the habitat is characterized by the single most dominant cover type and all habitats are characterized for percent cover of coral. The data and data analyses from Walker and Foster (2009 and 2010) were used to evaluate the accuracy of the reclassified map for Regions Of Interest (ROI) 1 and 2. New data were collected for ROIs 3 and 4 as part of this report. All four regions were combined and analyzed to determine total map accuracy"--Executive summary.
Author: Brian K. Walker Publisher: ISBN: Category : Benthos Languages : en Pages : 56
Book Description
"This report describes the methodologies, analyses, and results for an independent accuracy assessment of a thematic benthic habitat map produced by NOAA for the Florida Keys. It is an analysis of four regional accuracy assessments. Over the course of the Florida Keys mapping project, NOAA amended part of the classification scheme. The original scheme for mapping benthic cover was a tiered approach where certain benthic cover categories were given priority over others (e.g. coral was most important). Recently, this was modified to a dominant benthic cover scheme where the habitat is characterized by the single most dominant cover type and all habitats are characterized for percent cover of coral. The data and data analyses from Walker and Foster (2009 and 2010) were used to evaluate the accuracy of the reclassified map for Regions Of Interest (ROI) 1 and 2. New data were collected for ROIs 3 and 4 as part of this report. All four regions were combined and analyzed to determine total map accuracy"--Executive summary.
Author: Brian K. Walker Publisher: ISBN: Category : Benthos Languages : en Pages : 27
Book Description
"This report describes the methodologies, analyses, and results for an independent accuracy assessment of a thematic benthic habitat map produced by NOAA for the Lower Florida Keys. It is a reanalysis of a previous accuracy assessment for a different classification scheme. Over the course of the Florida Keys mapping project, NOAA amended part of the classification scheme. The original scheme for mapping benthic cover was a tiered approached where certain benthic cover categories were given priority over others (e.g. coral was most important) . Recently, this was modified to a dominant benthic cover scheme where the habitat is characterized by the single most dominant cover type and all habitats are characterized for percent cover of coral. No new data were collected for this effort. The exact same data and data analyses from Walker and Foster (2010) were used to evaluate the accuracy of the reclassified map. The same analyses are currently underway for accuracy assessment area 1 from Walker and Foster (2009)"--Executive summary.
Author: Ian K. Rodericks Publisher: ISBN: Category : Languages : en Pages :
Book Description
Benthic habitat maps provide the spatial framework for many research science and management activities in coastal areas such as coral-reefs. Accuracy, the degree to which information on a map matches true or accepted values, of benthic habitat maps is important because often times the map will be used in decision-making processes about how we manage our marine resources. It is critical that some measure, such as the accuracy, of the map be known in order to give a sense of how the overall map portrays the seascape. This study compared the accuracy in the following map classes; major structure, major and detailed biological cover, and detailed coral cover, of the 2014 NOAA Florida Keys Coral Reef Ecosystem Habitat map using two separate quantitative, in situ, and qualitative, drop camera, data sets in order to assess how the data sets compare to one another. Benthic habitat map classes of the NOAA Florida Keys map were based on a NOAA peer-reviewed hierarchical coral reef habitat classification scheme. Accuracy assessment tests to see how often the NOAA Florida Keys map producer correctly classified the different habitats, included error matrix analyses (overall, users and producers accuracy), and the tau coefficient. Study areas in the Florida Keys reef tract included hard-bottom reef habitat from Key West to the northern end of Key Largo, and focuses on three regions of interest that encompass the eastern and western Lower Keys and Key Largo. The Qualitative, drop-camera, accuracy assessment (AA) analyses for all three regions of interest gave overall accuracies of 84.2%, 16.9, at the major level of geomorphological structure, 85.4%, 16.4, and 73.8%, 18.7, at the major and detailed levels of biological cover and 70.4%, 20.6, for detailed coral cover. The Quantitative, in situ, AA analyses for all three regions of interest gave overall accuracies of 86.1%, 0, at the major level of geomorphological structure, 85.2%, 1.9, and 50.7%, 13.4, at the major and detailed levels of biological cover and 47.5%, 13.4, for coral cover. Qualitative and quantitative accuracies were similar at the major geologic structure (hard vs. soft bottom) and major biological cover (i.e. seagrass, algae) however qualitative AAs for detailed biological cover (i.e. percent of seagrass, algae) and detailed coral cover (percent of coral) were 23.1% and 22.9% higher than the quantitative AAs. This trend was also found when analyzing the accuracies for the individual regions of interest. The results suggest that for performing an AA of broad map categories, a Qualitative AA compares well with an in situ Quantitative AA, but for more detailed map categories the in situ quantitative AA is more accurate. Marine resource managers should consider these accuracies when making decisions based on the 2014 NOAA Florida Keys Coral Reef Ecosystem Habitat map.
Author: Publisher: ISBN: Category : Aquatic ecology Languages : en Pages : 53
Book Description
This atlas contains 32 color maps depicting the benthic habitats at a scale of 1:51,000. In addition to showing the locations and extents of different habitat types in the Florida Keys, the atlas provides a brief description of the Florida Keys region, summary information on the extents of the ecological habitats by subregion, and a detailed description of each habitat type. ... The data can serve as a baseline for research and for monitoring projects undertaken by scientists, managers, and the academic community and to support resource-assessment activities and management decisions.
Author: Xiaojun Yang Publisher: Springer Science & Business Media ISBN: 3540881832 Category : Science Languages : en Pages : 560
Book Description
In this landmark publication, leading experts detail how remote sensing and related geospatial technologies can be used for coastal ecosystem assessment and management. This book is divided into three major parts. In the first part several conceptual and technical issues of applying remote sensing and geospatial technologies in the coastal environment are examined. The second part showcases some of the latest developments in the use of remote sensing and geospatial technologies when characterizing coastal waters, submerged aquatic vegetation, benthic habitats, shorelines, coastal wetlands and watersheds. Finally, the last part demonstrates a watershed-wide synthetic approach that links upstream stressors with downstream responses for integrated coastal ecosystem assessment and management.
Author: Vasilis D. Valavanis Publisher: CRC Press ISBN: 0203303180 Category : Science Languages : en Pages : 209
Book Description
Over the last two decades there has been increasing recognition that problems in oceanography and fisheries sciences and related marine areas are nearly all manifest in the spatio-temporal domain. Geographical Information Systems (GIS), the natural framework for spatial data handling, are being recognized as powerful tools with useful applications
Author: Brian K. Walker
Author: Brian K. Walker
Author: Brian K. Walker
Author: Ian K. Rodericks
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Author: Florida Marine Research Institute
Author: Xiaojun Yang
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Author: Vasilis D. Valavanis