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2015 St. Marys River Topobathymetric Lidar Point Cloud
 (MI_Metadata)
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        organisationName:  OCM Partners
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        organisationName:  NOAA Office for Coastal Management
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                voice:  (843) 740-1202
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                deliveryPoint:  2234 South Hobson Ave
                city:  Charleston
                administrativeArea:  SC
                postalCode:  29405-2413
                country: (missing)
                electronicMailAddress:  coastal.info@noaa.gov
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                linkage: https://coast.noaa.gov
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    dateStamp:
      DateTime:  2022-08-09T17:11:37
    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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                      date:  2008-11-12
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                      organisationName:  European Petroleum Survey Group
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              code:  urn:ogc:def:crs:EPSG:6318
              version:  6.18.3
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                  title:  North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
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                      organisationName:  European Petroleum Survey Group
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              code:  urn:ogc:def:crs:EPSG::5703
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  2015 St. Marys River Topobathymetric Lidar Point Cloud
            alternateTitle:  st_marys_2015_usace_m6231_metadata
            date:  (CI_Date)
                date:  2017-02-15
                dateType:  (CI_DateTypeCode) publication
            identifier:  (MD_Identifier)
                authority:  (CI_Citation)
                    title:  NOAA/NMFS/EDM
                    date: (inapplicable)
                code:
                  Anchor:  InPort Catalog ID 50018
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                        linkage: https://www.fisheries.noaa.gov/inport/item/50018
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                        name:  Full Metadata Record
                        description:  View the complete metadata record on InPort for more information about this dataset.
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                        linkage: https://coast.noaa.gov/dataviewer
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                        linkage: https://coast.noaa.gov
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                        description:  Online Resource
                        function:  (CI_OnLineFunctionCode) download
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        abstract:  In September 2015, Quantum Spatial (QSI) was contracted by the United States Army Corps of Engineers (USACE) to collect topobathymetric Light Detection and Ranging (lidar) data in the fall of 2015 for selected areas of the St. Marys River in Michigan and Ontario, Canada. Traditional near-infrared (NIR) lidar was fully integrated with green wavelength return data (bathymetric) lidar in order to provide seamless and complete project mapping. Data were collected to aid USACE in assessing the topographic and geophysical properties (channel morphology and topobathymetric surface) of the study area. Points were classified into the following categories: 1 = unclassified, 2 = ground, 7 = noise, 9 = water, 13 = submerged structures, 14 = above-water structures, 25 = water column, 26 = bathymetric bottom, 29 = submerged object. Data described here are point cloud data for an integrated topobathymetric model. The derived DEM is also available through the NOAA Digital Coast. The data received by NOAA from USACE did not include a compliant metadata record. This record was generated from information in the lidar report. This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
        purpose:  Classified LAS files were collected to aid USACE in assessing the topographic and geophysical properties (channel morphology and topobathymetric surface) of the study area.
        credit:  Quantum Spatial, Inc. flew the lidar and processed the data. The custom download may be cited as National Oceanic and Atmospheric Administration (NOAA) Digital Coast Data Access Viewer. Charleston, SC: NOAA Office for Coastal Management. Accessed Aug 01, 2023 at https://coast.noaa.gov/dataviewer.
        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
        graphicOverview:  (MD_BrowseGraphic)
            fileName: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/6231/supplemental/mi2015_usace_lre_st_marys_m6231.kmz
            fileDescription:  This graphic shows the lidar footprint for the 2015 USACE LRE St Marys River topobathy lidar project in Michigan
            fileType:  kmz
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Hydrology
            type:  (MD_KeywordTypeCode) theme
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Lidar - partner (no harvest)
            type:  (MD_KeywordTypeCode) project
            thesaurusName:  (CI_Citation)
                title:  InPort
                date: (inapplicable)
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Cite As: OCM Partners, [Date of Access]: 2015 St. Marys River Topobathymetric Lidar Point Cloud [Data Date Range], https://www.fisheries.noaa.gov/inport/item/50018.
        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: No restrictions apply to these data. | Use Constraints: None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no Longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of it's limitations. Acknowledgement of the USACE Detroit District would be appreciated for products derived from these data. | Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of USACE, Quantum Spatial, the NOAA Office for Coastal Management, or their partners.
        resourceConstraints:  (MD_SecurityConstraints)
            classification:  (MD_ClassificationCode) unclassified
            classificationSystem: (missing)
            handlingDescription: (missing)
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                title:  NOAA Data Management Plan (DMP)
                date: (unknown)
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                    authority:  (CI_Citation)
                        title:  NOAA/NMFS/EDM
                        date: (inapplicable)
                    code:  50018
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                    organisationName: (inapplicable)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/50018.pdf
                            protocol:  WWW:LINK-1.0-http--link
                            name:  NOAA Data Management Plan (DMP)
                            description:  NOAA Data Management Plan for this record on InPort.
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            associationType:  (DS_AssociationTypeCode) crossReference
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) vector
        language:  eng; US
        topicCategory:  (MD_TopicCategoryCode) elevation
        extent:  (EX_Extent)
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    description:   | Currentness: Ground Condition
                    beginPosition:  2015-10-09
                    endPosition:  2015-11-29
        supplementalInformation:  CONTRACTOR: Quantum Spatial, Inc Ground Control Points were acquired and calibrated by Quantum Spatial, Inc. All Lidar data acquisition, calibration, and follow-on processing were completed by the prime contractor. A project report with more detail is available at https:://coast.noaa.gov/htdata/lidar2_z/geoid18/data/6231/supplemental/St_Marys_Topobathymetric_LiDAR_Report.pdf
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    distributionInfo:  (MD_Distribution)
        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
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                role:  (CI_RoleCode) distributor
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6231
                protocol:  WWW:LINK-1.0-http--link
                name:  Customized Download
                description:  Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
                function:  (CI_OnLineFunctionCode) download
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/6231/index.html
                protocol:  WWW:LINK-1.0-http--link
                name:  Bulk Download
                description:  Simple download of data files.
                function:  (CI_OnLineFunctionCode) download
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy
            evaluationMethodDescription:  Topographic and Bathymetric accuracies were assessed separately. The topographic assessment used 164 points and the bathymetric assessment used 334 points. Individually, these had Fundamental Vertical Accuracy (1.96 * RMSE) values of 0.045 and 0.094 meters respectively. The aggregate accuracy is reported as the accuracy here.; Quantitative Value: 0.081 meters, Test that produced the value: Absolute accuracy was assessed using Fundamental Vertical Accuracy (FVA) reporting designed to meet guidelines presented in the FGDC National Standard for Spatial Data Accuracy3. FVA compares known ground check point data collected on open, bare earth surfaces with level slope (less than 20 degrees) to the triangulated surface generated by the lidar points. FVA is a measure of the accuracy of lidar point data in open areas where the lidar system has a high probability of measuring the ground surface and is evaluated at the 95% confidence interval (1.96 * RMSE). A combined topographic and bathymetric accuracy is reported here.
            result: (missing)
        report:  (DQ_CompletenessCommission)
            nameOfMeasure:  Completeness Report
            evaluationMethodDescription:  Datasets contain complete coverage of tiles. No points have been removed or excluded. A visual qualitative assessment was performed to ensure data completeness. There are no void areas or missing data. The raw point cloud is of good quality and data passes Non-Vegetated Vertical Accuracy specifications.
            result: (missing)
        report:  (DQ_ConceptualConsistency)
            nameOfMeasure:  Conceptual Consistency
            evaluationMethodDescription:  Classified LAS files were tested by Quantum Spatial for both vertical and horizontal accuracy. All data is seamless from one tile to the next, no gaps or no data areas.
            result: (missing)
        lineage:  (LI_Lineage)
            statement: (missing)
            processStep:  (LI_ProcessStep)
                description:  The Riegl VQ-820-G was selected as the hydrographic airborne laser scanner for the St. Marys River project based on fulfillment of several considerations deemed necessary for effective mapping of the project site. A high repetition pulse rate, high scanning speed, small laser footprint, and wide field of view allow for seamless collection of high resolution data of both topographic and bathymetric surfaces. A short laser pulse length allows for discrimination of underwater surface expression in shallow water, critical to shallow and dynamic environments. The Riegl system has demonstrated hydrographic depth ranging capability up to 1 Secchi depth on bright reflective surfaces. The LiDAR survey was accomplished using a Leica ALS50 system dually mounted with a Riegl VQ-820-G topobathymetric sensor in a Cessna Caravan 208B. The Riegl VQ-820-G uses a green wavelength (lambda=532 nm) laser that is capable of collecting high resolution vegetation and topography data, as well as penetrating the water surface with minimal spectral absorption by water. The recorded waveform enables range measurements for all discernible targets for a given pulse. The typical number of returns digitized from a single pulse range from 1 to 7 for the St. Marys River project area. The Leica ALS50 laser system records up to four range measurements (returns) per pulse. It is not uncommon for some types of surfaces (e.g., dense vegetation or water) to return fewer pulses to the LiDAR sensor than the laser originally emitted. The discrepancy between first return and overall delivered density will vary depending on terrain, land cover, and the prevalence of water bodies. All discernible laser returns were processed for the output dataset. Processing workflow was as follows: Resolve kinematic corrections for aircraft position data using kinematic aircraft GPS and static ground GPS data. Develop a smoothed best estimate of trajectory (SBET) file that blends post-processed aircraft position with sensor head position and attitude recorded throughout the survey. Calculate laser point position by associating SBET position to each laser point return time, scan angle, intensity, etc. Create raw laser point cloud data for the entire survey in *.las (ASPRS v. 1.2) format. Convert data to orthometric elevations by applying a geoid12b correction. Import raw laser points into manageable blocks to perform manual relative accuracy calibration and filter erroneous points. Classify ground points for individual flight lines. Using ground classified points per each flight line, test the relative accuracy. Perform automated line-to-line calibrations for system attitude parameters (pitch, roll, heading), mirror flex (scale) and GPS/IMU drift. Calculate calibrations on ground classified points from paired flight lines and apply results to all points in a flight line. Use every flight line for relative accuracy calibration. Apply refraction correction to all subsurface returns. Classify resulting data to ground and other client designated ASPRS classifications . Assess statistical absolute accuracy via direct comparisons of ground classified points to ground control survey data.
                dateTime:
                  DateTime:  2016-01-01T00:00:00
            processStep:  (LI_ProcessStep)
                description:  Data were received by the NOAA Office for Coastal Management from the USACE Detroit District in the form described above. For ingesting into the Digital Coast Data Access Viewer, the data were reprojected Michigan State Plane North meters (EPSG code 26988) to NAD83 geographic coordinates with ellipsoid heights. Data were also compressed to LAZ format using laszip.
                dateTime:
                  DateTime:  2017-01-01T00:00:00
            source:  (LI_Source)
                description:  Source Contribution: This data source was used to populate the lidar point cloud data. | Source Geospatial Form: lidar data | Type of Source Media: online
                sourceCitation:  (CI_Citation)
                    title:  Lidar RAW Data for St. Marys River 2015
                    date:  (CI_Date)
                        date:  2015-01-01
                        dateType:  (CI_DateTypeCode) publication
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  2015-10-09
                            endPosition:  2015-11-29
            processStep:  (LI_ProcessStep)
                description:   The vertical values in this data set have been converted to reference North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters, using the GEOID18 grids provided by the National Geodetic Survey. Any datum and projection transformations were then done with the Office for Coastal Management 'datum_shift' program. Compression to an LAZ file was done with the LAStools 'laszip' program and can be unzipped with the same free program (laszip.org) Processing notes:
                dateTime:
                  DateTime:  2023-08-01T06:14:47
                processor:  (CI_ResponsibleParty)
                    individualName:  NOAA Office for Coastal Management
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            electronicMailAddress:  coastal.info@noaa.gov
                    role:  (CI_RoleCode) processor