Text View of ISO 19115/19115-2 Metadata with Links to Guidance on NOAA EDM Wiki

identificationInfo
distributionInfo
dataQualityInfo

2017 NOAA NGS Topobathy Lidar DEM: St. Jeromes Creek, MD
(MI_Metadata) fileIdentifier: gov.noaa.nmfs.inport:56773 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) deliveryPoint: 2234 South Hobson Avenue city: Charleston administrativeArea: SC postalCode: 29405-2413 onlineResource: (CI_OnlineResource) linkage: https://www.coast.noaa.gov/ protocol: WWW:LINK-1.0-http--link name: Website description: Website for this organization function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) resourceProvider contact: (CI_ResponsibleParty) organisationName: Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (missing) address: (CI_Address) deliveryPoint: 2234 South Hobson Avenue city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: (missing) onlineResource: (CI_OnlineResource) linkage: https://www.coast.noaa.gov/ protocol: WWW:LINK-1.0-http--link name: Website description: Website listed for this contact function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact dateStamp: DateTime: 2019-07-01T14:10:27 metadataStandardName: ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data metadataStandardVersion: ISO 19115-2:2009(E) return to top identificationInfo: (MD_DataIdentification) citation: (CI_Citation) title: 2017 NOAA NGS Topobathy Lidar DEM: St. Jeromes Creek, MD alternateTitle: NOAA_MD1702_Topobathy_DEM.xml date: (CI_Date) date: 2019 dateType: (CI_DateTypeCode) publication identifier: (MD_Identifier) authority: (CI_Citation) title: NOAA/NMFS/EDM date: (inapplicable) code: Anchor: InPort Catalog ID 56773 citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov/ protocol: WWW:LINK-1.0-http--link name: NOAA's Office for Coastal Management (OCM) website description: Information on the NOAA Office for Coastal Management (OCM) 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: This data was collected by NOAA using a Riegl VQ880G sensor. The data was acquired August 5, 2017. The data includes topobathy data in LAS 1.2 format classified as created,unclassified (1); ground (2); topographic noise (7); bathymetric noise (22); water column (25); bathymetric bottom (26); water surface (27); International Hydrographic Organization S-57 object; not otherwise specified (30), in accordance with project specifications. The project consists of approximately 34 square miles of data along the shores of St. Jeromes Creek. This dataset contains 342 500 m x 500 m lidar tiles. purpose: St. Jeromes Creek has been identified as having critical topographic and bathymetric data gaps by NOAA. This lidar data will fill those critical gaps. credit: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA) status: (MD_ProgressCode) completed pointOfContact: (CI_ResponsibleParty) organisationName: Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (missing) address: (CI_Address) deliveryPoint: 2234 South Hobson Avenue city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: (missing) onlineResource: (CI_OnlineResource) linkage: https://www.coast.noaa.gov/ protocol: WWW:LINK-1.0-http--link name: Website description: Website listed for this contact function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact pointOfContact: (CI_ResponsibleParty) organisationName: Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (missing) address: (CI_Address) deliveryPoint: 2234 South Hobson Avenue city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: (missing) onlineResource: (CI_OnlineResource) linkage: https://www.coast.noaa.gov/ protocol: WWW:LINK-1.0-http--link name: Website description: Website listed for this contact function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian resourceMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) notPlanned graphicOverview: (MD_BrowseGraphic) fileName: https://coast.noaa.gov/htdata/lidar3_z/geoid12b/data/8777/supplemental/md2017_ngs_topobathy_stjeromecreek_m8777.kmz fileDescription: This graphic displays the footprint for this lidar data set. fileType: KML descriptiveKeywords: (MD_Keywords) keyword: Bathymetry/Topography keyword: DEM keyword: lidar keyword: Topography type: (MD_KeywordTypeCode) theme descriptiveKeywords: (MD_Keywords) keyword: Earth Science > Land Surface > Topography > Terrain Elevation keyword: Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography keyword: Earth Science > Oceans > Coastal Processes > Coastal Elevation keyword: elevation type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Science Keywords date: (missing) descriptiveKeywords: (MD_Keywords) keyword: Maryland keyword: St. Jeromes Creek keyword: U.S. Coastline keyword: United States type: (MD_KeywordTypeCode) place descriptiveKeywords: (MD_Keywords) keyword: Continent > North America > United States Of America keyword: Vertical Location > Land Surface keyword: Vertical Location > Seafloor type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Location Keywords date: (missing) descriptiveKeywords: (MD_Keywords) keyword: Earth Remote Sensing Instruments > Active Remote Sensing > Profilers/Sounders > Lidar/Laser Sounders > LIDAR > Light Detection and Ranging type: (MD_KeywordTypeCode) instrument thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Instrument Keywords date: (missing) descriptiveKeywords: (MD_Keywords) keyword: Aircraft > Aircraft type: (MD_KeywordTypeCode) platform thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Platform Keywords date: (missing) descriptiveKeywords: (MD_Keywords) keyword: DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce type: (MD_KeywordTypeCode) dataCenter 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_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 useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Access Constraints: None \| 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. \| Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the National Geodetic Survey, the Coastal Services Center, or its partners. resourceConstraints: (MD_SecurityConstraints) classification: (MD_ClassificationCode) unclassified classificationSystem: (missing) handlingDescription: (missing) language: eng; US topicCategory: (MD_TopicCategoryCode) elevation topicCategory: (MD_TopicCategoryCode) elevation environmentDescription: OS Independent extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -76.386945 eastBoundLongitude: -76.304493 southBoundLatitude: 38.020557 northBoundLatitude: 38.165636 temporalElement: (EX_TemporalExtent) extent: TimeInstant: description: \| Currentness: Ground Condition timePosition: 2017-08-05 supplementalInformation: The full workflow used for this project is found in the final project report submitted to NOAA. return to top distributionInfo: (MD_Distribution) distributionFormat: (MD_Format) name: Zip version: (missing) fileDecompressionTechnique: Zip distributionFormat: (MD_Format) name: img version: (missing) distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) organisationName: Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (missing) address: (CI_Address) deliveryPoint: 2234 South Hobson Avenue city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: (missing) onlineResource: (CI_OnlineResource) linkage: https://www.coast.noaa.gov/ protocol: WWW:LINK-1.0-http--link name: Website description: Website listed for this contact function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) distributor transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8778 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://coast.noaa.gov/htdata/raster2/elevation/NGS_MD_StJeromesCreek_DEM_2017_8778 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: Horizontal Positional Accuracy evaluationMethodDescription: NOAA acquired and calibrated all lidar data and Dewberry classified this data and created derivative products. As such, Dewberry did not perform any absolute positional accuracy testing on this dataset. The DEMs are derived from the source lidar and inherit the accuracy of the source data. The DEMs are created using controlled and tested methods to limit the amount of error introduced during DEM production. result: (missing) report: (DQ_AbsoluteExternalPositionalAccuracy) nameOfMeasure: Vertical Positional Accuracy evaluationMethodDescription: NOAA acquired and calibrated all lidar data and Dewberry classified this data and created derivative products. NOAA collected lidar data to meet 15cm vertical accuracy at 1 sigma. Dewberry did not perform any absolute positional accuracy testing on this dataset. The DEMs are derived from the source lidar and inherit the accuracy of the source data. The DEMs are created using controlled and tested methods to limit the amount of error introduced during DEM production. result: (missing) report: (DQ_CompletenessCommission) nameOfMeasure: Completeness Report evaluationMethodDescription: Data covers the project boundary. result: (missing) report: (DQ_ConceptualConsistency) nameOfMeasure: Conceptual Consistency evaluationMethodDescription: Not applicable result: (missing) lineage: (LI_Lineage) statement: Lidar was acquired by NOAA and processed by Dewberry. processStep: (LI_ProcessStep) description: Data for the St. Jeromes Creek project was acquired by NOAA using a Riegl VQ880G sensor. All delivered lidar data is referenced to: Horizontal Datum-NAD83 (2011) epoch: 2010 Projection-UTM Zone 18 North Horizontal Units-meters Vertical Datum-NAD83(2011) epoch: 2010 Vertical Units-meters This dataset encompasses 342 500m x 500m tiles. Both green lidar data and NIR lidar data were acquired. NOAA acquired, calibrated, and performed the refraction correction of the lidar data. Light travels at different speeds in air versus water and its direction of travel or angle is changed or refracted when entering the water column. The refraction correction process corrects for this difference by adjusting the depth (distance traveled) and horizontal position (change of angle/direction) of the lidar data acquired within water. Dewberry received the calibrated green and NIR data and verified complete coverage. Relative accuracy of the green swaths compared to overlapping and adjacent green swaths as well as the relative accuracy of green swaths compared to overlapping and adjacent NIR swaths was verified through the use of Delta-Z (DZ) orthos created in GeoCue software. Intraswath or within a swath relative accuracy was verified using Quick Terrain Modeler. Profiles of elevated planar features, such as roofs, were used to verify horizontal alignment between overlapping swaths. Dewberry used algorithms in TerraScan to create the intial ground/submerged topography surface. Dewberry created 2-D breaklines by digitizing breaklines in a 2-D environment using intensity imagery as a reference. Dewberry used the 2-D breaklines to classify the bathymetric bottom and ground points properly in TerraScan. All lidar data was peer-reviewed. Dewberry's QAQC also included creating void polygons for use during review. All necessary edits were applied to the dataset. GeoCue software was used to update LAS header information, including all projection and coordinate reference system information. The final lidar data is in LAS format 1.2 and point data record format 3. The final classificaton scheme is as follows: 1-Unclassified 2-Ground 7-Topographic Noise 22-Bathymetric Noise 25-Water Column 26-Bathymetric Bottom 27-Water Surface 30-International Hydrograpic Organization (IHO) S-57 Object All data was then verified by an Independent QC department within Dewberry. The independent QC was performed by separate analysts who did not perform manual classification or editing. The independent QC involved quantitative and qualitative reviews. dateTime: DateTime: 2019-02-01T00:00:00 processor: (CI_ResponsibleParty) organisationName: National Geodetic Survey role: (CI_RoleCode) processor processStep: (LI_ProcessStep) description: Dewberry made a copy of the final lidar data and transformed the data from ellipsoid heights to orthometric heights, referenced to NAVD88 Geoid 12B, meters. The lidar data in orthometric heights was used to create the final topobathymetric DEMs in orthometric heights Lidar data was converted to a LAS Dataset. Lidar data classified as ground (2) and submerged topography (26) were then used to generate a raster in IMG format with 1 meter pixel resolution. The output raster was created over the full AOI area to reduce edge-matching issues and improve seamlessness. The raster was clipped to the tile grid and named according to project specifications to result in tiled topobathymetric DEMs. All tiled DEMs incorporate the use of the void polygons. The void polygons represent bathymetric areas with no bathymetric bottom returns and are set as NoData in the DEMs. Void polygon creation is described in the final project report and the void polygon metadata. A confidence layer has been created and provided to NOAA as part of the deliverables. Except where there are not enough lidar data points in a pixel to calulate a standard deviation value, the confidence layer is a raster product in IMG format with 1 meter square pixels. The confidence layer provides a standard deviation value for every pixel by calculating the standard deviation of all ground and/or submerged topography lidar points that are located within a single pixel. The confidence layer pixels align to the pixels in the topobathy DEMs. The confidence layer can be displayed by unique values or classified into desired bins/ranges for analysis over larger areas. dateTime: DateTime: 2019-03-01T00:00:00

2017 NOAA NGS Topobathy Lidar DEM: St. Jeromes Creek, MD

(MI_Metadata)
    fileIdentifier: gov.noaa.nmfs.inport:56773
    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)
                deliveryPoint: 2234 South Hobson Avenue
                city: Charleston
                administrativeArea: SC
                postalCode: 29405-2413
            onlineResource: (CI_OnlineResource)
                linkage: https://www.coast.noaa.gov/
                protocol: WWW:LINK-1.0-http--link
                name: Website
                description: Website for this organization
                function: (CI_OnLineFunctionCode) information
        role: (CI_RoleCode) resourceProvider
    contact: (CI_ResponsibleParty)
        organisationName: Office for Coastal Management
        contactInfo: (CI_Contact)
            phone: (CI_Telephone)
                voice: (missing)
            address: (CI_Address)
                deliveryPoint: 2234 South Hobson Avenue
                city: Charleston
                administrativeArea: SC
                postalCode: 29405-2413
                country: (missing)
                electronicMailAddress: (missing)
            onlineResource: (CI_OnlineResource)
                linkage: https://www.coast.noaa.gov/
                protocol: WWW:LINK-1.0-http--link
                name: Website
                description: Website listed for this contact
                function: (CI_OnLineFunctionCode) information
        role: (CI_RoleCode) pointOfContact
    dateStamp:
      DateTime: 2019-07-01T14:10:27
    metadataStandardName: ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
    metadataStandardVersion: ISO 19115-2:2009(E)
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    identificationInfo: (MD_DataIdentification)
        citation: (CI_Citation)
            title: 2017 NOAA NGS Topobathy Lidar DEM: St. Jeromes Creek, MD
            alternateTitle: NOAA_MD1702_Topobathy_DEM.xml
            date: (CI_Date)
                date: 2019
                dateType: (CI_DateTypeCode) publication
            identifier: (MD_Identifier)
                authority: (CI_Citation)
                    title: NOAA/NMFS/EDM
                    date: (inapplicable)
                code:
                  Anchor: InPort Catalog ID 56773
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                    onlineResource: (CI_OnlineResource)
                        linkage: https://coast.noaa.gov/
                        protocol: WWW:LINK-1.0-http--link
                        name: NOAA's Office for Coastal Management (OCM) website
                        description: Information on the NOAA Office for Coastal Management (OCM)
                        function: (CI_OnLineFunctionCode) download
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                        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: This data was collected by NOAA using a Riegl VQ880G sensor. The data was acquired August 5, 2017. The data includes topobathy data in LAS 1.2 format classified as created,unclassified (1); ground (2); topographic noise (7); bathymetric noise (22); water column (25); bathymetric bottom (26); water surface (27); International Hydrographic Organization S-57 object; not otherwise specified (30), in accordance with project specifications. The project consists of approximately 34 square miles of data along the shores of St. Jeromes Creek. This dataset contains 342 500 m x 500 m lidar tiles.
        purpose: St. Jeromes Creek has been identified as having critical topographic and bathymetric data gaps by NOAA. This lidar data will fill those critical gaps.
        credit: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA)
        status: (MD_ProgressCode) completed
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            organisationName: Office for Coastal Management
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                    deliveryPoint: 2234 South Hobson Avenue
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                    postalCode: 29405-2413
                    country: (missing)
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                    function: (CI_OnLineFunctionCode) information
            role: (CI_RoleCode) pointOfContact
        pointOfContact: (CI_ResponsibleParty)
            organisationName: Office for Coastal Management
            contactInfo: (CI_Contact)
                phone: (CI_Telephone)
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                    city: Charleston
                    administrativeArea: SC
                    postalCode: 29405-2413
                    country: (missing)
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                    linkage: https://www.coast.noaa.gov/
                    protocol: WWW:LINK-1.0-http--link
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            role: (CI_RoleCode) custodian
        resourceMaintenance: (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) notPlanned
        graphicOverview: (MD_BrowseGraphic)
            fileName: https://coast.noaa.gov/htdata/lidar3_z/geoid12b/data/8777/supplemental/md2017_ngs_topobathy_stjeromecreek_m8777.kmz
            fileDescription: This graphic displays the footprint for this lidar data set.
            fileType: KML
        descriptiveKeywords: (MD_Keywords)
            keyword: Bathymetry/Topography
            keyword: DEM
            keyword: lidar
            keyword: Topography
            type: (MD_KeywordTypeCode) theme
        descriptiveKeywords: (MD_Keywords)
            keyword: Earth Science > Land Surface > Topography > Terrain Elevation
            keyword: Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
            keyword: Earth Science > Oceans > Coastal Processes > Coastal Elevation
            keyword: elevation
            type: (MD_KeywordTypeCode) theme
            thesaurusName: (CI_Citation)
                title: Global Change Master Directory (GCMD) Science Keywords
                date: (missing)
        descriptiveKeywords: (MD_Keywords)
            keyword: Maryland
            keyword: St. Jeromes Creek
            keyword: U.S. Coastline
            keyword: United States
            type: (MD_KeywordTypeCode) place
        descriptiveKeywords: (MD_Keywords)
            keyword: Continent > North America > United States Of America
            keyword: Vertical Location > Land Surface
            keyword: Vertical Location > Seafloor
            type: (MD_KeywordTypeCode) place
            thesaurusName: (CI_Citation)
                title: Global Change Master Directory (GCMD) Location Keywords
                date: (missing)
        descriptiveKeywords: (MD_Keywords)
            keyword: Earth Remote Sensing Instruments > Active Remote Sensing > Profilers/Sounders > Lidar/Laser Sounders > LIDAR > Light Detection and Ranging
            type: (MD_KeywordTypeCode) instrument
            thesaurusName: (CI_Citation)
                title: Global Change Master Directory (GCMD) Instrument Keywords
                date: (missing)
        descriptiveKeywords: (MD_Keywords)
            keyword: Aircraft > Aircraft
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                title: Global Change Master Directory (GCMD) Platform Keywords
                date: (missing)
        descriptiveKeywords: (MD_Keywords)
            keyword: DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce
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                title: Global Change Master Directory (GCMD) Data Center Keywords
                date: (CI_Date)
                    date: 2017-04-24
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                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_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
            useConstraints: (MD_RestrictionCode) otherRestrictions
            otherConstraints: Access Constraints: None | 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. | Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the National Geodetic Survey, the Coastal Services Center, or its partners.
        resourceConstraints: (MD_SecurityConstraints)
            classification: (MD_ClassificationCode) unclassified
            classificationSystem: (missing)
            handlingDescription: (missing)
        language: eng; US
        topicCategory: (MD_TopicCategoryCode) elevation
        topicCategory: (MD_TopicCategoryCode) elevation
        environmentDescription: OS Independent
        extent: (EX_Extent)
            geographicElement: (EX_GeographicBoundingBox)
                westBoundLongitude: -76.386945
                eastBoundLongitude: -76.304493
                southBoundLatitude: 38.020557
                northBoundLatitude: 38.165636
            temporalElement: (EX_TemporalExtent)
                extent:
                  TimeInstant:
                    description: | Currentness: Ground Condition
                    timePosition: 2017-08-05
        supplementalInformation: The full workflow used for this project is found in the final project report submitted to NOAA.
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    distributionInfo: (MD_Distribution)
        distributionFormat: (MD_Format)
            name: Zip
            version: (missing)
            fileDecompressionTechnique: Zip
        distributionFormat: (MD_Format)
            name: img
            version: (missing)
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                organisationName: Office for Coastal Management
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                        voice: (missing)
                    address: (CI_Address)
                        deliveryPoint: 2234 South Hobson Avenue
                        city: Charleston
                        administrativeArea: SC
                        postalCode: 29405-2413
                        country: (missing)
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                        linkage: https://www.coast.noaa.gov/
                        protocol: WWW:LINK-1.0-http--link
                        name: Website
                        description: Website listed for this contact
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                linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8778
                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)
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                linkage: https://coast.noaa.gov/htdata/raster2/elevation/NGS_MD_StJeromesCreek_DEM_2017_8778
                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
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    dataQualityInfo: (DQ_DataQuality)
        scope: (DQ_Scope)
            level: (MD_ScopeCode) dataset
        report: (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure: Horizontal Positional Accuracy
            evaluationMethodDescription: NOAA acquired and calibrated all lidar data and Dewberry classified this data and created derivative products. As such, Dewberry did not perform any absolute positional accuracy testing on this dataset. The DEMs are derived from the source lidar and inherit the accuracy of the source data. The DEMs are created using controlled and tested methods to limit the amount of error introduced during DEM production.
            result: (missing)
        report: (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure: Vertical Positional Accuracy
            evaluationMethodDescription: NOAA acquired and calibrated all lidar data and Dewberry classified this data and created derivative products. NOAA collected lidar data to meet 15cm vertical accuracy at 1 sigma. Dewberry did not perform any absolute positional accuracy testing on this dataset. The DEMs are derived from the source lidar and inherit the accuracy of the source data. The DEMs are created using controlled and tested methods to limit the amount of error introduced during DEM production.
            result: (missing)
        report: (DQ_CompletenessCommission)
            nameOfMeasure: Completeness Report
            evaluationMethodDescription: Data covers the project boundary.
            result: (missing)
        report: (DQ_ConceptualConsistency)
            nameOfMeasure: Conceptual Consistency
            evaluationMethodDescription: Not applicable
            result: (missing)
        lineage: (LI_Lineage)
            statement: Lidar was acquired by NOAA and processed by Dewberry.
            processStep: (LI_ProcessStep)
                description: Data for the St. Jeromes Creek project was acquired by NOAA using a Riegl VQ880G sensor. All delivered lidar data is referenced to: Horizontal Datum-NAD83 (2011) epoch: 2010 Projection-UTM Zone 18 North Horizontal Units-meters Vertical Datum-NAD83(2011) epoch: 2010 Vertical Units-meters This dataset encompasses 342 500m x 500m tiles. Both green lidar data and NIR lidar data were acquired. NOAA acquired, calibrated, and performed the refraction correction of the lidar data. Light travels at different speeds in air versus water and its direction of travel or angle is changed or refracted when entering the water column. The refraction correction process corrects for this difference by adjusting the depth (distance traveled) and horizontal position (change of angle/direction) of the lidar data acquired within water. Dewberry received the calibrated green and NIR data and verified complete coverage. Relative accuracy of the green swaths compared to overlapping and adjacent green swaths as well as the relative accuracy of green swaths compared to overlapping and adjacent NIR swaths was verified through the use of Delta-Z (DZ) orthos created in GeoCue software. Intraswath or within a swath relative accuracy was verified using Quick Terrain Modeler. Profiles of elevated planar features, such as roofs, were used to verify horizontal alignment between overlapping swaths. Dewberry used algorithms in TerraScan to create the intial ground/submerged topography surface. Dewberry created 2-D breaklines by digitizing breaklines in a 2-D environment using intensity imagery as a reference. Dewberry used the 2-D breaklines to classify the bathymetric bottom and ground points properly in TerraScan. All lidar data was peer-reviewed. Dewberry's QAQC also included creating void polygons for use during review. All necessary edits were applied to the dataset. GeoCue software was used to update LAS header information, including all projection and coordinate reference system information. The final lidar data is in LAS format 1.2 and point data record format 3. The final classificaton scheme is as follows: 1-Unclassified 2-Ground 7-Topographic Noise 22-Bathymetric Noise 25-Water Column 26-Bathymetric Bottom 27-Water Surface 30-International Hydrograpic Organization (IHO) S-57 Object All data was then verified by an Independent QC department within Dewberry. The independent QC was performed by separate analysts who did not perform manual classification or editing. The independent QC involved quantitative and qualitative reviews.
                dateTime:
                  DateTime: 2019-02-01T00:00:00
                processor: (CI_ResponsibleParty)
                    organisationName: National Geodetic Survey
                    role: (CI_RoleCode) processor
            processStep: (LI_ProcessStep)
                description: Dewberry made a copy of the final lidar data and transformed the data from ellipsoid heights to orthometric heights, referenced to NAVD88 Geoid 12B, meters. The lidar data in orthometric heights was used to create the final topobathymetric DEMs in orthometric heights Lidar data was converted to a LAS Dataset. Lidar data classified as ground (2) and submerged topography (26) were then used to generate a raster in IMG format with 1 meter pixel resolution. The output raster was created over the full AOI area to reduce edge-matching issues and improve seamlessness. The raster was clipped to the tile grid and named according to project specifications to result in tiled topobathymetric DEMs. All tiled DEMs incorporate the use of the void polygons. The void polygons represent bathymetric areas with no bathymetric bottom returns and are set as NoData in the DEMs. Void polygon creation is described in the final project report and the void polygon metadata. A confidence layer has been created and provided to NOAA as part of the deliverables. Except where there are not enough lidar data points in a pixel to calulate a standard deviation value, the confidence layer is a raster product in IMG format with 1 meter square pixels. The confidence layer provides a standard deviation value for every pixel by calculating the standard deviation of all ground and/or submerged topography lidar points that are located within a single pixel. The confidence layer pixels align to the pixels in the topobathy DEMs. The confidence layer can be displayed by unique values or classified into desired bins/ranges for analysis over larger areas.
                dateTime:
                  DateTime: 2019-03-01T00:00:00