gov.noaa.nodc:0170215 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-07-14T14:56:00Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NCCOS mapping: seafloor mapping products for the Florida Keys National Marine Sanctuary from 2004-01-01 to 2019-09-22 (NCEI Accession 0170215) 2018-01-30 publication 2023-01-25 revision 2018-01-24 creation International DOI Foundation (IDF) 10.7289/v55b00rz NOAA National Centers for Environmental Information gov.noaa.nodc:0170215 NCEI Archive Management System 0170215 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher NOAA National Centers for Coastal Ocean Science (NCCOS) https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information resourceProvider J. Christopher Taylor NOAA National Centers for Coastal Ocean Science (NCCOS) chris.taylor@noaa.gov https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information principalInvestigator Don Field NOAA National Centers for Coastal Ocean Science (NCCOS) don.field@noaa.gov https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information principalInvestigator Shay Viehman NOAA National Centers for Coastal Ocean Science (NCCOS) Shay.Viehman@noaa.gov https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information principalInvestigator Cory Ames NOAA National Centers for Coastal Ocean Science (NCCOS) cory.ames@noaa.gov https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information principalInvestigator Chris Freeman Geodynamics, LLC. collaborator Sloan Freeman Geodynamics, LLC. collaborator Michael Burton NOAA Southeast Fisheries Science Center (NMFS/SEFSC) https://www.fisheries.noaa.gov/about/southeast-fisheries-science-center HTTPS NOAA Southeast Fisheries Science Center (NMFS/SEFSC) website Institution web page information collaborator Jenny Vander Pluym NOAA National Centers for Coastal Ocean Science (NCCOS) https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information collaborator Erik Ebert NOAA National Centers for Coastal Ocean Science (NCCOS) https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information collaborator Amber Batts NOAA National Centers for Coastal Ocean Science (NCCOS) https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information collaborator Taylor, J. Christopher US DOC/NOAA/NOS/National Centers for Coastal Ocean Science/Center for Coastal Fisheries and Habitat Research (NCCOS/CCFHR) chris.taylor@noaa.gov author Field, Don NOAA National Centers for Coastal Ocean Science https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information author Vander Pluym, Jenny NOAA National Centers for Coastal Ocean Science https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information author Viehman, Shay NOAA National Centers for Coastal Ocean Science https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information author Ebert, Erik NOAA National Centers for Coastal Ocean Science https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information author Ames, Cory NOAA National Centers for Coastal Ocean Science https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information author Batts, Amber NOAA National Centers for Coastal Ocean Science https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information author J. Christopher Taylor NOAA National Centers for Coastal Ocean Science (NCCOS) chris.taylor@noaa.gov https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information pointOfContact NOAA National Centers for Coastal Ocean Science (NCCOS) NCCOS Data Manager nccos.data@noaa.gov https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information pointOfContact NOAA Southeast Fisheries Science Center (NMFS/SEFSC) https://www.fisheries.noaa.gov/about/southeast-fisheries-science-center HTTPS NOAA Southeast Fisheries Science Center (NMFS/SEFSC) website Institution web page information contributor NOAA National Centers for Coastal Ocean Science (NCCOS) https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information contributor tableDigital This dataset is an inventory of seafloor mapping data from hydrographic multibeam sonar surveys and georeferenced benthic photographs and video clips, all collected in and around the Florida Keys National Marine Sanctuary (FKNMS). The multibeam data sets contain both bathymetric and backscatter data for the FKNMS and adjacent areas in the Atlantic Ocean, bounded to the North by the Florida Keys, and contain detailed surveys of various portions of FKNMS such as the Dry Tortugas and Tortugas Bank areas. Underwater video and photographs for ground validation were acquired during research cruises in the FKNMS. All of these datasets can be visualized online in the 2nd edition of the FKNMS Digital Atlas. Containing the world’s third largest barrier reef, Florida Keys National Marine Sanctuary (FKNMS) hosts many research entities every year that collect a staggering amount of data, much of which are mapping products. The sanctuary is faced with multiple decisions regarding zoning, fishery ecosystem management requirements, and effective protection of ESA species. Unfortunately, existing habitat maps do not extend beyond the 20 m depth contour, ignoring a significant portion of the coral reefs in the FKNMS, particularly vast portions of the Tortugas Ecological Reserves. The main objectives of this NOAA National Centers for Coastal Ocean Science (NCCOS) project were to compile, assess, and transition existing data into an accessible map interface to inform management decisions while preparing the sanctuary for future issues. The purpose of these data is to support FKNMS benthic habitat map products and research planning efforts. NCCOS is providing improved seafloor mapping data products for the areas of the FKNMS that are deeper than 20 meters. The corrected bathymetry base surfaces can be used to interpret the seafloor habitat types and extend the range of existing habitat map products. The acoustic imagery (backscatter) data can be used to help further habitat interpretation. We have built an interactive dataviewer that includes the updated mapping products and the groundtruthing images and video files included in this dataset. The Sanctuary and partners will be able to use the dataviewer mapservice for future planning, data visualization, and management plan development. Partners include: FKNMS, NOAA National Marine Fisheries Service (NMFS) Southeast Fisheries Science Center (SEFSC) Florida Fish and Wildlife Conservation Commission (FWC), National Park Service (NPS), National Coral Reef Monitoring Program (NCRMP) and Geodynamics LLC. Funding Agency: NOAA National Centers for Coastal Ocean Science Partner: US DOC; NOAA; NOS; Florida Keys National Marine Sanctuary (FKNMS) Partner: NOAA Southeast Fisheries Science Center (SEFSC) Partner: Florida Fish and Wildlife Conservation Commission (FWC) Partner: National Park Service (NPS) Partner: National Coral Reef Monitoring Program (NCRMP) completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded NCEI Accession 0170215 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made. https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0170215 Preview graphic PNG 0170215 NCEI ACCESSION NUMBER 2021-12-30 publication BATHYMETRY biological data CORAL DEPTH - BOTTOM DEPTH - SENSOR HABITAT - BENTHIC images SUBSTRATE DESCRIPTION water depth theme NODC DATA TYPES THESAURUS echo sounder multibeam sonar video camera instrument NODC INSTRUMENT TYPES THESAURUS biological GIS product in situ visual observation theme NODC OBSERVATION TYPES THESAURUS NOAA Ship Nancy Foster NOAA Ship Thomas Jefferson platform NODC PLATFORM NAMES THESAURUS NOAA National Centers for Coastal Ocean Science NOAA Southeast Fisheries Science Center dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA National Centers for Coastal Ocean Science dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Coral Reef Conservation Program (CRCP) CORAL REEF STUDIES project NODC PROJECT NAMES THESAURUS Coastal Waters of Florida Florida Keys National Marine Sanctuary Gulf of Mexico North Atlantic Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NMFS/SEFSC > Southeast Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian 31232 Improving habitat maps of South Florida Reef Tract to support ecosystem management project CRCP Project NCCOS Project #296: Extending Seafloor Mapping Products to Include Habitats Greater Than 20 m Depths in the Florida Keys National Marine Sanctuary project NCCOS Project Names EARTH SCIENCE > BIOLOGICAL CLASSIFICATION EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS > CORAL REEFS Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Reef > Coral Reef theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Marine Spatial Ecology > Habitat Mapping theme NCCOS Research Areas Derived Data Product Field Observation Geospatial theme NCCOS Research Data Types groundtruth for habitat validation theme Provider Keywords ECHO SOUNDERS > ECHO SOUNDERS MBES > Multibeam Mapping System VIDEO CAMERA > VIDEO CAMERA instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Ships platform Global Change Master Directory (GCMD) Platform Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian NANCY FOSTER (call sign: WTER, ICES code: 33NF, 2004-) THOMAS JEFFERSON (call sign: WTEA, ICES code: 33TJ, 2003-) platform ICES/SeaDataNet Ship Codes M/V Spree platform Provider Platform Keywords Continent > North America > United States Of America > Florida > Florida Keys OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Region > East Coast place NCCOS Place Keywords U.S. States and Territories > Florida Waterbodies > Gulf of Mexico place NCCOS Regions of Study Coastal Ocean Continental Shelf Dry Tortugas Florida Keys Key Largo Marquesas Riley's Hump Tortugas Bank Tortugas Ecological Reserve place Provider Place Names TC3L6F Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Taylor, J. Christopher; Field, Don; Vander Pluym, Jenny; Viehman, Shay; Ebert, Erik; Ames, Cory; Batts, Amber (2018). NCCOS mapping: seafloor mapping products for the Florida Keys National Marine Sanctuary from 2004-01-01 to 2019-09-22 (NCEI Accession 0170215). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v55b00rz. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. IHO Standards for Hydrographic Surveys 2008 publication 5 https://iho.int/uploads/user/pubs/standards/s-44/S-44_5E.pdf HTTPS IHO Standards for Hydrograhic Surveys (S-44) 5th Edition IHO Standards for Hydrograhic Surveys (S-44) 5th Edition information International Hydrographic Bureau https://www.iho.int/srv1/index.php?lang=en HTTPS website Institution web page information publisher documentDigital Special Publication No. 44 crossReference userGuide Extending Seafloor Mapping Products to Include Habitats Greater Than 20 m Depths in the Florida Keys National Marine Sanctuary 2015 publication https://coastalscience.noaa.gov/project/seafloor-mapping-products-florida-keys/ HTTPS https://coastalscience.noaa.gov/project/seafloor-mapping-products-florida-keys/ National Centers for Coastal Ocean Science (NCCOS) project page information NOAA National Centers for Coastal Ocean Science (NCCOS) https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information publisher documentDigital crossReference project Florida Keys National Marine Sanctuary Digital Atlas publication https://noaa.maps.arcgis.com/apps/webappviewer/index.html?id=03daf1d686c84ece8172ed394e287c78 HTTPS Florida Keys National Marine Sanctuary Digital Atlas Digital Atlas information crossReference Florida Keys National Marine Sanctuary Data Viewer MapServer publication https://gis.ngdc.noaa.gov/arcgis/rest/services/nccos/BenthicMapping_FKNMS_Dataviewer/MapServer HTTPS Florida Keys National Marine Sanctuary Data Viewer MapServer Data Viewer/ MapServer information crossReference Users guide to the Unified Florida Reef Tract Map 2016 publication https://myfwc.com/media/20088/unifiedreefmap-usersguide-version20.pdf HTTPS Users guide to the Unified Florida Reef Tract Map PDF of Florida Reef Tract Map information Renee Duffey renee.duffey@myfwc.com author Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute publisher crossReference sciencePaper eng; USA utf8 environment oceans imageryBaseMapsEarthCover geoscientificInformation biota -83.251114 -80.22942 24.342084 25.359476 2004-01-01 2019-09-22 Methods: Multibeam sonar data (seabed elevation) and acoustic imagery data (backscatter) were collected using multibeam echosounders (MBES) on the NOAA Ship Nancy Foster (NF) and NOAA Ship Thomas Jefferson (TJ) from cruises during the years 2004-2019. The multibeam datasets cover areas within the FKNMS and some adjacent areas in the Atlantic Ocean. The data sets between 2004 and 2017 were preliminarily processed by NCCOS and corrected for motion, sound speed, and other major artifacts. These data were further processed and reviewed by Geodynamics, who conducted an initial processing to arrange the data into a modern working CARIS project, then conducted a full processing of the data and incorporated a NOAA zoned definition file (ZDF) to increase vertical accuracy and permit NCCOS’s later use of the data for habitat characterization. The original bathymetry data from the NF was cleaned to IHO S-44 specs. Data from the two TJ cruises, survey areas H10957 and H11340, were accompanied with working BAG files and did not require full processing. MBES datasets collected in 2018 and 2019 were cleaned and processed by NOAA Ship Nancy Foster personnel only. The acoustic imagery (backscatter) data that exists for 3 areas only (2004-2018 Tortugas Ecological Reserve North and South, 2010-2017 Upper Keys, 2012-2018 Marquesas) were reviewed and processed by NCCOS using Fledermaus geocoder. The resulting datasets were mosaicked together to produce a geo-referenced tiff of the main areas of interest (excluding ship transit data). Eight complexity surfaces (bathymetry mean, bathymetry standard deviation, curvature, curvature plan, curvature profile, rugosity, slope, and slope of slope) were used to generate the Principle Component Analysis (PCA) data layers for all MBES datasets. The Geotiff is the result of a PCA using these 8 derived complexity surfaces from the MBES and LiDAR datasets. The PCA creates a file consisting of 3 bands, or principal components, that account for the maximal amount of variance in the original 8 derived complexity surfaces. The PCA is the primary layer used in the benthic habitat classification process. The classification was checked against all of the underwater videos and stills collected within the classification area to ensure the final product corresponded as closely as possible to the benthos identified in those ground verification points. NCCOS reviewed the PCA’s for logical consistency in ArcGIS. NCCOS and its collaborators collected images and video clips during research cruises in the FKNMS during 2012-2019, which were edited to focus on benthic habitat, and analyzed for groundtruth validation of benthic habitat type. The underwater video device is referred to as a drop camera consisting of two video cameras mounted in a stainless steel frame. One is a lower resolution camera tethered to the surface with cable to allow viewing by NCCOS personnel at the surface. This allowed surface personnel to visualize the bottom and ensure the frame did not impact the bottom. The other video camera is a GoPro, used to collect HD video. The archived video were collected on a November 2018 NOAA Ship Nancy Foster cruise and an August 2019 mission on a FKNMS 30 foot outboard vessel. The video was viewed by NCCOS personnel for groundtruth validation of habitat type at pre-chosen points. These data were used for training data in benthic habitat classification using MBES data in the Dry Tortugas Ecological Reserve and a large area to the north and west of the Marquesas. No QA/QC of the video was performed. In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. ShapeFile GeoTIFF JPEG PDF Excel CSV GIS Geodatabase M4V MP4 40147.152 https://doi.org/10.7289/v55b00rz HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/170215 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/170215 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0116/0170215/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0170215 v1.1 was published. 2018-01-30T20:18:11Z NCEI Accession 0170215 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0170215/1.1 HTTPS NCEI Accession 0170215 v1.1 published 2018-01-30T20:18:11Z download NCEI Accession 0170215 was revised and v2.2 was published. Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. 2023-01-25T19:47:47Z NCEI Accession 0170215 v2.2 publication https://www.ncei.noaa.gov/archive/accession/0170215/2.2 HTTPS NCEI Accession 0170215 v2.2 published 2023-01-25T19:47:47Z download dataset Parameter or Variable: BATHYMETRY (measured); Units: meter; Observation Category: in situ; Sampling Instrument: multibeam sonar; Sampling and Analyzing Method: Multibeam sonar data (seabed elevation) was collected using multibeam echosounders (MBES), Reson 7125, EM102. The data were preliminarily processed and corrected by NCCOS for motion, sound speed, and other major artifacts.; Data Quality Method: Geodynamics reviewed and processed the multibeam bathymetry data for the NF cruises; TJ cruise data were reviewed but did not require full processing. The minimum standards for multibeam echo sounder sonar system resolution are set forth under 1a in the "IHO Standards for Hydrographic Surveys", 2008. The surfaces produced in CARIS that were used for producing BAGs and GeoTIFFs use the IHO S-44 Special Order. In CARIS, each sounding has an associated Total Propagated Uncertainty (TPU) tagged to its metadata, computed for the maximum potential uncertainty of each sounding. A portion of this information is compiled for applicable sensors involved in the MBES survey, collected from the manufacturer’s published or calibrated values. A portion of the uncertainty values used in the calculating TPU are derived from standard deviations of measurements such as vessel static draft, dynamic draft and lever arm published accuracies with real-time RMS values for pitch, roll, heading, and heave. However, in this project, the soundings TPU values are not considered accurate or trusted because Geodynamics were not provided enough information to derive TPU. Therefore, due to inaccurate TPU values and the necessity for TPU values to create a CUBE surface, zeros values were used in computing TPU. Further QA/QC tools utilized in CARIS processing consist of the use of CARIS processing logs, continually adjustments in color pallet and vertical exaggeration of the surfaces, and contouring the data. The CARIS processing logs were used a tool for assuring consistency in processing. The logs made sure the same steps for processing were used for the individual cruises. Additionally, the logs made an easy accessible and reliable data source for storing problems seen in the data, filters applied, lines edited for refraction issues, and other vital information about the CARIS project data. The logs also contained overall notes containing larger issues and notable cruise-wide problems. The adjustments of color pallets for the various surfaces were utilized for the depth layer. The processor can adjust the color pallet to make features or noise stand out that would otherwise not be noticeable at different color ranges. As the processor was area-based cleaning using subset editor, the color pallet was frequently changed and kept to a narrow range to ensure adequate feature detection. A similar process, adjusting the vertical exaggeration of the surface, was also practiced throughout processing. The surfaces were vertically exaggerated to help features and noise (motion, sonar artifacts, etc) stand out upon area-based subset cleaning. Within swath and subset editors, the data were also greatly vertically exaggerated to help validate and view small features in greater detail. Lastly, contours were used as another QA/QC tool. The contours were produced for individual surfaces and assist in identifying refraction issues in the data and other various artifacts. The contours will expose any problems in the data that were not addressed in earlier processing. The problem areas will cause the contours to take irregular shapes or bend in consistent “u” or “v” shapes that the processor will see upon close visual inspection. Parameter or Variable: Acoustic Backscatter (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: multibeam sonar; Sampling and Analyzing Method: Measurement of relative intensity of the sea floor. Acoustic imagery data (backscatter) was collected using multibeam echosounders (MBES; Reson 7125, EM102) and processed by NCCOS using FMGT software. The raw sounding and beam form were combined to create a mosaic of the survey area. Data were manually edited for constantly of intensity over multiple years and sampling systems.; Data Quality Method: NCCOS reviewed and processed the acoustic imagery (backscatter) aspect data using Fledermaus geocoder. Parameter or Variable: HABITAT - BENTHIC (measured); Units: n/a; Observation Category: in situ; Sampling Instrument: video camera; Sampling and Analyzing Method: Presence or absence of hard coral if the data is available. Underwater video and photographs were acquired during three different research cruises in the FKNMS. Georeferenced images were assembled into fullsize collages and thumbnail versions using ImageJ, and video clips were edited to focus on benthic habitat. In 2012 and 2013 (R/V Spree), SEFSC collected images during two research cruises in the Riley’s Hump region south of the Dry Tortugas National Park along a 50 m transect placing a 50 x 50 cm quadrat at 10 m intervals starting at 0 m; these images were taken in situ by science SCUBA divers during benthic cover photography of quadrats that was later analyzed by NCCOS for benthic percent cover of coral, sponge, octocoral, macroalgae, and sand using CPCe software. In June 7-12, 2015 (NF 1505), NCCOS collected still images throughout the FKNMS from video clips from drop camera operations that included a GoPro 3+ was mounted to ponar grabs and CTDs, with gps positions recorded at each station video was collected. In August 10-28, 2016 (NF 1606), NCCOS collected video clips in multiple locations within FKNMS (Marquesas, Western Dry Rocks, Warsaw Hole, Tortugas Ecological Reserve, and Riley’s Hump) for groundtruth validation of habitat type using a dropcamera deployed attached to a stainless steel frame with a GoPro 3+ attached to the outside of the frame.; Data Quality Method: The Riley’s Hump images were analyzed and QA/QCed by NCCOS for benthic cover using CPCe Coral Point Count. All other video clips and images were only used for groundtruth validation of habitat type (hardbottom vs. softbottom, reef present) so no additional QA/QC was necessary. Parameter or Variable: NCCOS Keywords (calculated); Units: n/a; Observation Category: other; Sampling Instrument: n/a; Data Quality Method: NCCOS Research Priority > Marine Spatial Ecology (MSE)## NCCOS Research Topic > Habitat Mapping## NCCOS Research Location > Region > Gulf of Mexico## NCCOS Research Location > Region > East Coast## NCCOS Research Location > U.S. States and Territories > Florida## NCCOS Research Data Type > Geospatial## NCCOS Research Data Type > Field Observation## NCCOS Research Data Type > Derived Data Product## Parameter or Variable: GCMD Keywords (calculated); Units: n/a; Observation Category: other; Sampling Instrument: n/a; Data Quality Method: Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic## Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Reef > Coral Reef## Continent > North America > United States Of America > Florida > Florida Keys## In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > > MBES > Multibeam Mapping System## Parameter or Variable: Other Scientific Keywords (calculated); Units: n/a; Observation Category: other; Sampling Instrument: n/a; Data Quality Method: Depth – Bottom## Depth – Sensor## Remote Sensing## water depth## groundtruth for habitat validation## benthic data## asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian echo sounder echo sounder instrument used to determine water depth or bathymetry also known as an echosounder multibeam sonar multibeam sonar generic instrument to measure seafloor topography Active sensors that utilize acoustic energy to collect measurements of seafloor depth and character (from http://www.csc.noaa.gov/crs/rs_apps/sensors/multi_beam.htm (last accessed 2008-12-09). Seafloor topography, bathymetry and other related geophysical data are usually managed and archived at the NOAA National Geophysical Data Center (www.ngdc.noaa.gov/mgg/). video camera video camera a camera which makes moving or still images used as the basis for making parameter determinations NOAA Ship Nancy Foster Title: NOAA Ship Flag: United States of America Vessel Type: Research Vessel (Environmental) DOB: May 1991 IMO: 8993227 Former Name: Agate Pass (YTT-12) (2002) NOAA Ship Thomas Jefferson Updated information from ICES for the THOMAS JEFFERSON from UNITED STATES (US). Name : THOMAS JEFFERSON Country(s) : UNITED STATES(US) (ISO Country Code) Platform Class : 31 Research vessel Call Sign : WTEA IMO : 8892033 Pennant : S 222 Title : NOAA Ship Commissioned Date : 2003-03-03 Current Length : 63.4 Built : 1991-12 Previous Name (Notes): USNS LITTLEHALES WOD Code: 8682 Information Sources: - http://www.moc.noaa.gov/tj/index.html - http://www.seasearcher.com/lmiu/vessels/overview.htm?vesselID=277211 Confirmed by NOAA on 2015-06-03.