| 1950 - 2023 NOAA Seamless Topobathy DEM (Compiled 2023): Kachemak, Point Hope, Teller, AK | referenceSystemInfo|
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| (MI_Metadata) fileIdentifier: gov.noaa.nmfs.inport:71901 language: LanguageCode: eng characterSet: (MD_CharacterSetCode) UTF8 hierarchyLevel: (MD_ScopeCode) dataset hierarchyLevelName: Elevation contact: (CI_ResponsibleParty) organisationName: Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (missing) address: (CI_Address) role: (CI_RoleCode) resourceProvider contact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact dateStamp: DateTime: 2024-04-01T20:02:11 metadataStandardName: ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data metadataStandardVersion: ISO 19115-2:2009(E) return to top referenceSystemInfo: (MD_ReferenceSystem) referenceSystemIdentifier: (RS_Identifier) code: EPSG::5703 return to top referenceSystemInfo: (MD_ReferenceSystem) referenceSystemIdentifier: (RS_Identifier) code: EPSG::6332 return to top referenceSystemInfo: (MD_ReferenceSystem) referenceSystemIdentifier: (RS_Identifier) code: EPSG::6334 return to top identificationInfo: (MD_DataIdentification) citation: (CI_Citation) title: 1950 - 2023 NOAA Seamless Topobathy DEM (Compiled 2023): Kachemak, Point Hope, Teller, AK alternateTitle: ak2023_kach_pthope_teller_dem_m10032 date: (CI_Date) date: 2023 dateType: (CI_DateTypeCode) creation date: (CI_Date) date: 2023-12-20 dateType: (CI_DateTypeCode) publication identifier: (MD_Identifier) authority: (CI_Citation) title: NOAA/NMFS/EDM date: (inapplicable) code: Anchor: InPort Catalog ID 71901 citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.fisheries.noaa.gov/inport/item/71901 protocol: WWW:LINK-1.0-http--link name: Full Metadata Record description: View the complete metadata record on InPort for more information about this dataset. function: (CI_OnLineFunctionCode) information role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/OCM_Kach_Teller_PtHope_AK_DEM_2023_10032/supplemental/NOAA_Axim_TCarta_SeamlessTopobathyDEMPilot_Kachemak_Teller_PointHope_Revision03DPR_508OCM.pdf protocol: WWW:LINK-1.0-http--link name: Lidar Report description: Link to the TCarta/Axim lidar report. function: (CI_OnLineFunctionCode) download role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov/dataviewer/ protocol: WWW:LINK-1.0-http--link name: NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) description: The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. function: (CI_OnLineFunctionCode) download role: (inapplicable) presentationForm: (unknown) abstract: NOAA Seamless Topobathy Digital Elevation Model Pilot Incorporating Satellite-Derived Bathymetry - Kachemak, Teller, Point Hope, Alaska, project number 1305M223FNCNP0283DPR. Seamless topographic-bathymetry models were produced for three AOIs along the Alaskan coast, integrating multiple source datasets including bathymetric lidar, topographic lidar, multibeam and singlebeam echosounder, IFSAR, and satellite-derived bathymetry (SDB). Satellite-derived bathymetry was produced using empirical and physics-based radiative transfer models, derived from Maxar and Planet Labs mutlispectral imagery. All data sources were adjusted from MLLW to NAVD88 before integrating to a weighted grid, with weights assigned based on quality and data currency. The weighted grid was then interpolated utilizing Generic Mapping Tools (GMT) surface module, leveraging a spline-in-tension interpolation. DEMs were delivered at 2m resolution. Each DEM delivery includes ancillary files including an in situ source map raster, a known issue polygon feature class, source imagery utilized for SDB production, the individual SDB rasters integrated with the topographic-bathymetry model. Kachemak AOI covers approximately 1012 km2 Point Hope AOI covers approximately 2329 km2 Teller AOI covers approximately 1160 km2 purpose: Procured for NOAA Office for Coastal Management, the primary objective of this project was to fill bathymetric data gaps according to the Alaska Mapping Executive Committee (AMEC). This objective was to be achieved through acquiring new Satellite Derived Bathymetric (SDB) data in the assigned areas of interest (AOI), with the goal of expanding bathymetric data coverage beyond the current coverage from sonar and LiDAR datasets. Additionally, to create a seamless topographic-bathymetric digital elevation model (DEM) using existing topographic-bathymetric LiDAR, sonar bathymetry, terrestrial LiDAR, Interferometric Synthetic Aperture Radar (iFSAR), and TCarta SDB data. This was a pilot project to demonstrate how SDB can be used to fill in data gaps in hard to map areas due to accessibility, prohibitive cost associated with ship-based and LiDAR surveys, narrow windows of opportunities to perform survey work due to environmental and harsh weather conditions, and potential risks to operators surveying in these remote and unsurveyed areas. credit: TCarta Marine LLC, NOAA Office for Coastal Management (OCM) status: (MD_ProgressCode) completed pointOfContact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact pointOfContact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian resourceMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) notPlanned descriptiveKeywords: (MD_Keywords) keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM) keyword: EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY > COASTAL BATHYMETRY keyword: EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Science Keywords date: (missing) edition: 17.0 descriptiveKeywords: (MD_Keywords) keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA keyword: VERTICAL LOCATION > LAND SURFACE type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Location Keywords date: (missing) edition: 17.0 descriptiveKeywords: (MD_Keywords) keyword: LIDAR > Light Detection and Ranging type: (MD_KeywordTypeCode) instrument thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Instrument Keywords date: (missing) edition: 17.2 descriptiveKeywords: (MD_Keywords) keyword: Airplane > Airplane type: (MD_KeywordTypeCode) platform thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Platform Keywords date: (missing) edition: 17.2 descriptiveKeywords: (MD_Keywords) keyword: DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce type: (MD_KeywordTypeCode) dataCentre thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Data Center Keywords date: (CI_Date) date: 2017-04-24 dateType: (CI_DateTypeCode) publication edition: 8.5 citedResponsibleParty: GCMD Landing Page descriptiveKeywords: (MD_Keywords) keyword: DEMs type: (MD_KeywordTypeCode) project thesaurusName: (CI_Citation) title: InPort date: (inapplicable) resourceConstraints: (MD_LegalConstraints) useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Cite As: Office for Coastal Management, [Date of Access]: 1950 - 2023 NOAA Seamless Topobathy DEM (Compiled 2023): Kachemak, Point Hope, Teller, AK [Data Date Range], https://www.fisheries.noaa.gov/inport/item/71901. resourceConstraints: (MD_Constraints) useLimitation: NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. resourceConstraints: (MD_LegalConstraints) accessConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Access Constraints: None resourceConstraints: (MD_LegalConstraints) useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Use Constraints: Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. resourceConstraints: (MD_LegalConstraints) useLimitation: (MD_RestrictionCode) otherRestrictions otherConstraints: Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners. resourceConstraints: (MD_SecurityConstraints) classification: (MD_ClassificationCode) unclassified classificationSystem: (missing) handlingDescription: (missing) aggregationInfo: (MD_AggregateInformation) aggregateDataSetName: (CI_Citation) title: NOAA Data Management Plan (DMP) date: (unknown) identifier: (MD_Identifier) authority: (CI_Citation) title: NOAA/NMFS/EDM date: (inapplicable) code: 71901 citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/71901.pdf protocol: WWW:LINK-1.0-http--link name: NOAA Data Management Plan (DMP) description: NOAA Data Management Plan for this record on InPort. function: (CI_OnLineFunctionCode) information role: (inapplicable) associationType: (DS_AssociationTypeCode) crossReference spatialRepresentationType: (MD_SpatialRepresentationTypeCode) grid language: eng; US topicCategory: (MD_TopicCategoryCode) elevation environmentDescription: Python 3.10; Esri ArcGIS Pro 3.1; TCarta Trident Tools; Pure File Magic v6.4.0.43; Generic Mapping Tools 6.0 extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -167.39811989563 eastBoundLongitude: -165.94523956925 southBoundLatitude: 68.02897429398 northBoundLatitude: 68.51960420703 geographicElement: (EX_GeographicDescription) geographicIdentifier: (MD_Identifier) code: Point Hope temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: Dates of collection for Point Hope. The Point Hope DEM was created from a compilation of hydro surveys from 1961 to satellite derived bathymetry (SDB) collected in 2023. Hydro Surveys: 1961-07-22 to 2020-10-24 Topobathy Lidar: 2019 Topo Lidar: 2004, 2018 IfSAR: 2012-07-21 SDB: 2015-06-22, 2019-06-12, 2023-08-28, 2023-09-23 TCarta produced bathymetry from ICESat-2: 2022 | Currentness: Ground Condition beginPosition: 1961-07-22 endPosition: 2023-09-23 extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -151.8 eastBoundLongitude: -150.88 southBoundLatitude: 59.39 northBoundLatitude: 59.83 geographicElement: (EX_GeographicDescription) geographicIdentifier: (MD_Identifier) code: Kachemak temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: Dates of collection for Kachemak. The Kachemak DEM was created from a compilation of hydro surveys from 1980 to satellite derived bathymetry (SDB) collected in 2022. Hydro Surveys: 1980-05-06 to 2009-09-08 Topobathy Lidar: 2018, 2019 Topo Lidar: 2008 IfSAR: 2014-08-29 to 2014-09-12 SDB: 2018-09-20, 2019-04-15, 2019-05-24, 2021-07-25, 2022-05-28 | Currentness: Ground Condition beginPosition: 1980-05-06 endPosition: 2022-05-28 extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -167.13 eastBoundLongitude: -166 southBoundLatitude: 65.01 northBoundLatitude: 65.39 geographicElement: (EX_GeographicDescription) geographicIdentifier: (MD_Identifier) code: Teller temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: Dates of collection for Teller. The Teller DEM was created from a compilation of hydro surveys from 1950 to satellite derived bathymetry (SDB) collected in 2022. Hydro Surveys: 1950-01-01 to 2017-09-04 Topobathy Lidar: 2019 IfSAR: 2012-07-04 to 2012-07-12 SDB: 2015-06-18, 2017-08-10, 2020-06-16, 2022-07-13, 2022-08-02 TCarta produced bathymetry points from ICESat-2: 2022 | Currentness: Ground Condition beginPosition: 1950-01-01 endPosition: 2022-08-02 return to top distributionInfo: (MD_Distribution) distributionFormat: (MD_Format) name: (inapplicable) version: (missing) fileDecompressionTechnique: Zip distributionFormat: (MD_Format) name: GeoTIFF version: (missing) fileDecompressionTechnique: Uncompressed distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) distributor transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10032/details/10032 protocol: WWW:LINK-1.0-http--link name: Customized Download description: Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base. function: (CI_OnLineFunctionCode) download transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/OCM_Kach_Teller_PtHope_AK_DEM_2023_10032/index.html protocol: WWW:LINK-1.0-http--link name: Bulk Download description: Bulk download of data files in the original coordinate system. function: (CI_OnLineFunctionCode) download return to top dataQualityInfo: (DQ_DataQuality) scope: (DQ_Scope) level: (MD_ScopeCode) dataset report: (DQ_AbsoluteExternalPositionalAccuracy) nameOfMeasure: Vertical Positional Accuracy evaluationMethodDescription: To assess the vertical accuracy of the DEMs, a set of 3,000 randomly sampled points from each of the AOI's non-SDB bathymetry sources were collected. The elevation of each point was compared to the coincident DEM elevation, deriving absolute error, and absolute percent error. From these point statistics, an overall assessment of vertical accuracy was established. Kachemak - 1.17 m RMSE Teller - 0.51 m RMSE Point Hope - 0.12 m RMSE result: (missing) report: (DQ_CompletenessCommission) nameOfMeasure: Completeness Report evaluationMethodDescription: Complete result: (missing) report: (DQ_ConceptualConsistency) nameOfMeasure: Conceptual Consistency evaluationMethodDescription: Imbricate source insitu sources were deconflicted where possible utilizing spatial autocorrelation thresholding. All Satellite-Derived Bathymetry (SDB) including in the DEM was processed in a 3D-point cloud environment to remove spurious returns and outliers. result: (missing) lineage: (LI_Lineage) statement: TCarta/Axim created seamless topographic-bathymetry models for three AOIs along the Alaskan coast, integrating multiple source datasets including bathymetric lidar, topographic lidar, multibeam and singlebeam echosounder, IFSAR, and satellite-derived bathymetry (SDB) for the NOAA Office for Coastal Management (OCM). OCM processed the DEMs to make them available for custom and bulk download from the NOAA Digital Coast Data Access Viewer (DAV). processStep: (LI_ProcessStep) description: All source data contributing to the topographic bathymetry models were, when necessary, corrected to NAVD88 vertical datum utilizing an internal Ellipsoidally Referenced Tide Datum Model (ERTDM) to perform the VDatum transformation from MLLW to NAVD88 (GEOID12). A MLLW - NAVD88 (GEOID 12) triangulated mesh covering all the Alaska tidal benchmarks was the basis for this model, provided by NOAA's Coast Survey Development Lab. processStep: (LI_ProcessStep) description: Seamless topographic-bathymetry models were produced for three AOIs along the Alaskan coast, integrating multiple source datasets including bathymetric lidar, topographic lidar, multibeam and singlebeam echosounder, IFSAR, and satellite-derived bathymetry (SDB). Satellite-derived bathymetry was produced using empirical and physics-based radiative transfer models, derived from Maxar and Planet Labs mutlispectral imagery. All data sources were adjusted from MLLW to NAVD88 before integrating to a weighted grid, with weights assigned based on quality and data currency. The weighted grid was then interpolated utilizing Generic Mapping Tools (GMT) surface module, leveraging a spline-in-tension interpolation. DEMs were delivered at 2m resolution. For more details about the processing to create the DEMs, refer to the TCarta report which is accessible via the lidar report link in the URL section of this metadata record. processStep: (LI_ProcessStep) description: The NOAA Office for Coastal Management (OCM) received 3 GeoTiff files for the Kachemak, Point Hope and Teller AOIs from TCarta/Axim. The raster files were at a 2 m grid spacing. The data were in UTM Zone 3N (Point Hope, Teller) and UTM Zone 5N (Kachemak) NAD83 (2011), meters coordinates and NAVD88 elevations in meters. OCM assigned the appropriate EPSG codes (Horiz - 6332, 6334, Vert - 5703) and copied the raster files to AWS S3 for Digital Coast storage and provisioning purposes. dateTime: DateTime: 2024-01-22T00:00:00 processor: (CI_ResponsibleParty) organisationName: Office for Coastal Management role: (CI_RoleCode) processor source: (LI_Source) sourceCitation: (CI_Citation) title: IfSAR date: (missing) citedResponsibleParty: (CI_ResponsibleParty) organisationName: USGS role: (CI_RoleCode) publisher source: (LI_Source) sourceCitation: (CI_Citation) title: IfSAR and Lidar date: (missing) citedResponsibleParty: (CI_ResponsibleParty) organisationName: AK DGGS role: (CI_RoleCode) publisher source: (LI_Source) description: Source Contribution: Imagery was selected from the Maxar WorldView and GeoEye, and Planet imagery archives, with the best and most recently available imagery being given priority to create satellite derived bathymetry (SDB). sourceCitation: (CI_Citation) title: Imagery from Maxar WorldView, GeoEye, Planet date: (missing) source: (LI_Source) sourceCitation: (CI_Citation) title: Single and Multibeam Sonar date: (missing) citedResponsibleParty: (CI_ResponsibleParty) organisationName: NCEI role: (CI_RoleCode) publisher source: (LI_Source) sourceCitation: (CI_Citation) title: TCarta ICESat-2 Bathymetry date: (missing) citedResponsibleParty: (CI_ResponsibleParty) organisationName: TCarta role: (CI_RoleCode) originator source: (LI_Source) sourceCitation: (CI_Citation) title: Topobathy Lidar date: (missing) citedResponsibleParty: (CI_ResponsibleParty) organisationName: NOAA OCM role: (CI_RoleCode) publisher | |