gov.noaa.nodc:0209109 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 2025-05-16T15:50:31Z 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 Kachemak Bay, Cook Inlet, AK, from 2005-07-06 to 2017-07-19 (NCEI Accession 0209109) 2020-03-10 publication 2020-04-04 revision 2020-02-24 creation International DOI Foundation (IDF) 10.25921/2nha-4780 NOAA National Centers for Environmental Information gov.noaa.nodc:0209109 NCEI Archive Management System 0209109 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 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 Amit Malhotra NOAA National Centers for Coastal Ocean Science (NCCOS) amit.malhotra@noaa.gov https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information principalInvestigator Kris Holderied NOAA National Centers for Coastal Ocean Science (NCCOS) kris.holderied@noaa.gov https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information principalInvestigator 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 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 Steve Baird Kachemak Bay National Estuarine Research Reserve http://www.kbayrr.org HTTP Kachemak Bay National Estuarine Research Reserve website Institution web page information collaborator 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 Malhotra, Amit 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 Holderied, Kris 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 Taylor, Chris NOAA National Centers for Coastal Ocean Science chris.taylor@noaa.gov https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information author Kachemak Bay National Estuarine Research Reserve http://www.kbayrr.org HTTP Kachemak Bay National Estuarine Research Reserve 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 contains seafloor mapping data from hydrographic multibeam sonar surveys, a thematic benthic habitat map created from these multibeam sonar surveys, and georeferenced benthic photographs and video clips, all collected in and around Kachemak Bay, Alaska. The multibeam dataset contains the bathymetric data collected by NOAA Ship Fairweather and NOAA Ship Rainier in the summers of 2008 and 2009. Underwater videos for ground validation were acquired during the field missions of July 2016 and July 2017 aboard R/V Edgecumbe. An additional seagrass map, generated by manual interpretation of air photos captured in 2005, is also included, as are the air photos. Kachemak Bay estuarine and marine habitats are used by halibut, other groundfish, all five species of Pacific salmon, and shellfish (crab and bivalves). These species support commercial, recreational and subsistence harvests. Kachemak Bay is also used by marine mammal and seabird species under NOAA (whales, seals, sea lions) and U.S. Fish and Wildlife Service (FWS) (sea otters, seabirds) management. Kachemak Bay and Cook Inlet have experienced past crashes and lack of recovery in crab and herring populations and are currently experiencing significant declines in halibut, king salmon and clam populations which have reduced harvests and adversely affected the local economy and subsistence use. Improved geospatial data on benthic and intertidal habitats is needed by FWS and Alaska Department of Fish and Game resource managers, for NOAA and Alaska Department of Natural Resources permit decisions, and for U.S. Bureau of Ocean Energy Management (BOEM) environmental analysis needs for newly proposed oil and gas lease sales in the region. Before this project, there were no subtidal benthic habitat maps of Kachemak Bay to support essential fish habitat and other resource management needs. The main objectives of this NOAA National Centers for Coastal Ocean Science (NCCOS) project were to produce the first benthic habitat map for the area, and assess, and transition existing data into an accessible map interface to inform management decisions while preparing the users in the area for future issues. The corrected bathymetry base surface was used to interpret the seafloor topography habitat types. Funding Agency: US DOC; NOAA; NMFS; Office of Habitat Conservation; Habitat Blueprint; Habitat Focus Areas Funding Agency: NOAA National Centers for Coastal Ocean Science Partner: US DOI; U.S. Fish and Wildlife Service (FWS) Partner: University of Alaska Anchorage Partner: Alaska Department of Fish and Game (ADFG), Commercial Fisheries Division Partner: Alaska Department of Fish and Game (ADFG), Sport Fisheries Division Partner: Native Village of Nanwalek Tribe Partner: Seldovia Village Tribe Partner: The Kachemak Bay National Estuarine Research Reserve 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 0209109 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:0209109 Preview graphic PNG 0209109 NCEI ACCESSION NUMBER 2020-04-03 publication BATHYMETRY HABITAT - BENTHIC Video Transect Images theme NODC DATA TYPES THESAURUS multibeam sonar video camera instrument NODC INSTRUMENT TYPES THESAURUS in situ model output theme NODC OBSERVATION TYPES THESAURUS NOAA Ship Fairweather NOAA Ship Rainier platform NODC PLATFORM NAMES THESAURUS Kachemak Bay National Estuarine Research Reserve NOAA National Centers for Coastal Ocean Science dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA National Centers for Coastal Ocean Science dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Gulf of Alaska place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication 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 NCCOS Project #308: Developing Spatial Products for Kachemak Bay Habitat Focus Area to Support Place Based Management Needs project NCCOS Project Names EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE IMAGERY 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 Seagrass Classification Video Data theme Provider Keywords 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 Models/Analyses > Data Analysis > Environmental Modeling instrument Provider Instruments 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 FAIRWEATHER (call sign: WTEB, ICES code: 317W) RAINIER (call sign: WTEF, ICES code: 315R, 1968-) platform ICES/SeaDataNet Ship Codes NOAA R/V Edgecumbe platform Provider Platform Keywords OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > GULF OF ALASKA 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 U.S. States and Territories > Alaska Waterbodies > Pacific Ocean place NCCOS Regions of Study Coastal Ocean Cook Inlet Alaska Kachemak Bay Alaska Kachemak Bay National Estuarine Research Reserve place Provider Place Names BLFY1D Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Field, Don; Malhotra, Amit; Holderied, Kris; Taylor, Chris (2020). NCCOS mapping: seafloor mapping products for Kachemak Bay, Cook Inlet, AK, from 2005-07-06 to 2017-07-19 (NCEI Accession 0209109). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/2nha-4780. 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. Costa, B. M., & Battista, T. A. (2013). The semi-automated classification of acoustic imagery for characterizing coral reef ecosystems. International Journal of Remote Sensing, 34(18), 6389–6422. https://doi.org/10.1080/01431161.2013.800661 2013-06-10 publication International DOI Foundation (IDF) https://doi.org/10.1080/01431161.2013.800661 https://doi.org/10.1080/01431161.2013.800661 HTTPS https://doi.org/10.1080/01431161.2013.800661 Journal Article information Costa, B. M. a US National Oceanic & Atmospheric Administration Biogeography Branch , Silver Spring , MD , 20910 , USA author Battista, T. A. a US National Oceanic & Atmospheric Administration Biogeography Branch , Silver Spring , MD , 20910 , USA author Informa UK Limited publisher documentDigital International Journal of Remote Sensing 34(18) ISSN 0143-1161, ISSN 1366-5901, pp. 6389-6422 crossReference sciencePaper Coastal and marine ecological classification standard: Federal Geographic Data Committee FGDC-STD-018-2012 2012 publication FGDC-STD-018-2012 https://www.fgdc.gov/standards/projects/cmecs-folder/CMECS_Version_06-2012_FINAL.pdf HTTPS Coastal and Marine Ecological Classification Standard CMECS information Federal Geographic Data Committee author Federal Geographic Data Committee publisher 343 p. crossReference sciencePaper Mapping southern Florida's shallow-water coral ecosystems: an implementation plan 2005 publication https://repository.library.noaa.gov/view/noaa/9293 HTTPS NOAA Technical Memorandum NOS NCCOS 19 NOAA Technical Memorandum information Rohmann, S.0. author Monaco, M.E. author NOAA publisher 39 pp. crossReference sciencePaper IHO Standards for Hydrographic Surveys (S-44), 5th Edition 2008 publication https://iho.int/uploads/user/pubs/standards/s-44/S-44_5E.pdf HTTPS IHO Standards for Hydrographic Surveys (S-44), 5th Edition IHO Standards information Monaco, M.E. author International Hydrographic Bureau publisher Special Publication No. 44 28 pp crossReference sciencePaper H11933: NOS Hydrographic Survey, Kachemak Bay - Aurora Lagoon to Bear Cove 2008 publication https://www.ngdc.noaa.gov/nos/H10001-H12000/H11933.html HTTPS H11933: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H11934: NOS Hydrographic Survey, Kachemak Bay, Vicinity of Glacier Spit 2008 publication https://www.ngdc.noaa.gov/nos/H10001-H12000/H11934.html HTTPS H11934: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H11935: NOS Hydrographic Survey, Kachemak Bay, Vicinity of Homer Spit 2008 publication https://www.ngdc.noaa.gov/nos/H10001-H12000/H11935.html HTTPS H11935: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H11938: NOS Hydrographic Survey, Kachemak Bay, Vicinity of Archimandritof 2008 publication https://www.ngdc.noaa.gov/nos/H10001-H12000/H11938.html HTTPS H11938: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H12084: NOS Hydrographic Survey, Kachemak Bay, China Poot to Halibut Cove 2009 publication https://www.ngdc.noaa.gov/nos/H12001-H14000/H12084.html HTTPS H12084: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H12085: NOS Hydrographic Survey, Kachemak Bay, Eldred Passage and Sadie Cove 2009 publication https://www.ngdc.noaa.gov/nos/H12001-H14000/H12085.html HTTPS H12085: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H12086: NOS Hydrographic Survey, Kachemak Bay, Tutka Bay 2009 publication https://www.ngdc.noaa.gov/nos/H12001-H14000/H12086.html HTTPS H12086: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H12087: NOS Hydrographic Survey, Kachemak Bay, Vicinity of Kasitsna Bay 2009 publication https://www.ngdc.noaa.gov/nos/H12001-H14000/H12087.html HTTPS H12087: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H12088: NOS Hydrographic Survey, Kachemak Bay, Vicinity of Seldovia Bay 2009 publication https://www.ngdc.noaa.gov/nos/H12001-H14000/H12088.html HTTPS H12088: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H12089: NOS Hydrographic Survey, Kachemak Bay, Passage Island to Point Naskowhak 2009 publication https://www.ngdc.noaa.gov/nos/H12001-H14000/H12089.html HTTPS H12089: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H12090: NOS Hydrographic Survey, Kachemak Bay, Approaches to Homer 2009 publication https://www.ngdc.noaa.gov/nos/H12001-H14000/H12090.html HTTPS H12090: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H12114: NOS Hydrographic Survey, Kachemak Bay, Vicinity of Port Graham 2009 publication https://www.ngdc.noaa.gov/nos/H12001-H14000/H12114.html HTTPS H12114: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference H12146: NOS Hydrographic Survey, Kachemak Bay, Vicinity of Bluff Point 2009 publication https://www.ngdc.noaa.gov/nos/H12001-H14000/H12146.html HTTPS H12146: NOS Hydrographic Survey Data Source information NOAA OCS author NOAA National Centers for Environmental Information publisher crossReference Developing Spatial Products for the Kachemak Bay Habitat Focus Area to Support Place-Based Management Needs 2016 publication https://coastalscience.noaa.gov/project/spatial-products-kachemak-bay-habitat-focus-area-place-based-management/ HTTPS https://coastalscience.noaa.gov/project/spatial-products-kachemak-bay-habitat-focus-area-place-based-management/ 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 NCCOS Kachemak Bay BIOMapper 2020 publication https://nccos-coastalsciencemaps-web-staging.azurewebsites.net/biomapper/biomapper.html?id=kbay HTTPS NCCOS Kachemak Bay BIOMapper BIOMapper information crossReference NCCOS Kachemak Bay Benthic Habitat Mapping Video Explorer 2018-07-20 publication https://nccos-coastalscience-products-web.azurewebsites.net/biomapper_explorer/index.php?path=NFRMNDhwaUd6c3J1Z3k3T1k1QzVDUT09 HTTPS NCCOS Kachemak Bay Benthic Habitat Mapping Video Explorer Video Explorer information crossReference National Centers for Coastal Ocean Science, 2012: NCCOS Project: Kachemak Bay Ecological Assessment, https://www.fisheries.noaa.gov/inport/item/57258. 2012 publication gov.noaa.nmfs.inport:57258 https://www.fisheries.noaa.gov/inport/item/57258 HTTPS https://www.fisheries.noaa.gov/inport/item/57258 InPort Metadata Record 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 tableDigital crossReference eng; USA utf8 environment oceans geoscientificInformation biota -151.971995 -151.01898 59.328606 59.758568 2005-07-06 2017-07-19 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 .SHP and ancillary files: .CPG, .DBF, .PRJ, .SBN, .SBX, .SHP, .XML, .SHX JPEG GeoTIFF .TIF (and ancillary files .TFW, .AUX, .XML, .OVR) MP4 (Sartek (720p) and GoPro (1080p) video) PDF OpenDocument Spreadsheet 13911.624 https://doi.org/10.25921/2nha-4780 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/209109 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/209109 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0152/0209109/ 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 0209109 v1.1 was published. 2020-03-10T20:32:45Z NCEI Accession 0209109 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0209109/1.1 HTTPS NCEI Accession 0209109 v1.1 published 2020-03-10T20:32:45Z download NCEI Accession 0209109 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. 2020-04-04T00:41:13Z NCEI Accession 0209109 v2.2 publication https://www.ncei.noaa.gov/archive/accession/0209109/2.2 HTTPS NCEI Accession 0209109 v2.2 published 2020-04-04T00:41:13Z download dataset Parameter or Variable: BATHYMETRY (measured); Units: meter; Observation Category: in situ; Sampling Instrument: multibeam sonar; Sampling and Analyzing Method: Measurement of the seabed elevation. The data were collected using multibeam echosounders (MBES; Reson 7125, 8101, and 8125) and processed by NOS using Caris 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 the two cruise years and sampling systems.; Data Quality Method: 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. Parameter or Variable: HABITAT - BENTHIC (calculated); Units: none; Observation Category: model output; Sampling Instrument: Models/Analyses > Data Analysis > Environmental Modeling; Sampling and Analyzing Method: This data set is a thematic map, a benthic habitat classification. Multibeam echosounder data was classified into numerous subclasses of unconsolidated sediment and rock. The benthic habitat map was generated using a combination of automated image processing techniques in the eCognition software package and heads up, on-screen editing. Underwater video collected during field missions in July 2016 and July 2017 was used as training data to create the map.; Data Quality Method: The classification was checked against the 510 underwater videos collected in 2016 and 2017 to ensure the classification corresponded as closely as possible to the benthos identified in the videos. Parameter or Variable: Seagrass Classification (calculated); Units: none; Observation Category: model output; Sampling Instrument: Models/Analyses > Data Analysis > Environmental Modeling; Sampling and Analyzing Method: This data set is a thematic map, a classification of seagrass occurrence. Aerial photographs were interpreted, classifying seagrass as dense or patchy. Underwater video, and data collected on foot during low tides during field missions in June and August 2005 was used as training data to create the map.; Data Quality Method: The classification was checked against the 224 underwater videos collected in 2005 to ensure the classification corresponded as closely as possible to the benthos identified in the videos. asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian 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 Fairweather Title: NOAA Ship Flag: United States of America Vessel Type: Research Survey Vessel (Hydrographic) DOB: 1968 IMO: 6710920 NOAA Ship Rainier Title: NOAA Ship Flag: United States of America Vessel Type: Research Vessel (Hydrographic) DOB: Apr 1968 IMO: 6711003 Hull Classification: S 221