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distributionInfo
dataQualityInfo

2008 - 2009 Oregon Department of Geology and Mineral Industries (DOGAMI) South Coast LiDAR Project
 (MI_Metadata)
    fileIdentifier:  gov.noaa.nmfs.inport:49903
    language:
      LanguageCode:  eng
    characterSet:  (MD_CharacterSetCode) UTF8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  (CI_ResponsibleParty)
        organisationName:  OCM Partners
        contactInfo:  (CI_Contact)
            phone:  (CI_Telephone)
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            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:  2022-08-09T17:11:38
    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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    spatialRepresentationInfo:
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    referenceSystemInfo:
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      referenceSystemInfo:  (MD_ReferenceSystem)
          referenceSystemIdentifier:  (RS_Identifier)
              authority:  (CI_Citation)
                  title:  NAD83(NSRS2007)
                  date:  (CI_Date)
                      date:  2008-11-12
                      dateType:  (CI_DateTypeCode) publication
                  citedResponsibleParty:  (CI_ResponsibleParty)
                      organisationName:  European Petroleum Survey Group
                      contactInfo:  (CI_Contact)
                          onlineResource:  (CI_OnlineResource)
                              linkage: https://apps.epsg.org/api/v1/CoordRefSystem/4759/export/?format=gml
                      role: (missing)
              code:  urn:ogc:def:crs:EPSG:4759
              version:  6.18.3
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      referenceSystemInfo:  (MD_ReferenceSystem)
          referenceSystemIdentifier:  (RS_Identifier)
              authority:  (CI_Citation)
                  title:  North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
                  alternateTitle:  North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
                  citedResponsibleParty:  (CI_ResponsibleParty)
                      organisationName: (withheld)
                      contactInfo:  (CI_Contact)
                          onlineResource:  (CI_OnlineResource)
                              linkage: https://apps.epsg.org/api/v1/VerticalCoordRefSystem/5703/?api_key=gml
                              name:  North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
                              description:  Link to Geographic Markup Language (GML) description of reference system.
                              function:  (CI_OnLineFunctionCode) information
                      role:  (CI_RoleCode) resourceProvider
                  citedResponsibleParty:  (CI_ResponsibleParty)
                      organisationName:  European Petroleum Survey Group
                      contactInfo:  (CI_Contact)
                          onlineResource:  (CI_OnlineResource)
                              linkage: https://www.epsg.org/
                              name:  European Petroleum Survey Group Geodetic Parameter Registry
                              description:  Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
                              function:  (CI_OnLineFunctionCode) search
                      role:  (CI_RoleCode) publisher
                  VerticalCS:
                    metaDataProperty:
                      CommonMetaData:
                        type:  vertical
                        informationSource:  OGP
                        revisionDate:  2006-11-28
                        isDeprecated:  false
                    identifier:  urn:ogc:def:cs:EPSG::6499
                    name:  Vertical CS. Axis: height (H). Orientation: up. UoM: meter.
                    remarks:  Used in vertical coordinate reference systems.
                    axis:
                      CoordinateSystemAxis:
                        descriptionReference:  urn:ogc:def:axis-name:EPSG::9904
                        identifier:  urn:ogc:def:axis:EPSG::114
                        axisAbbrev:  H
                        axisDirection:  up
              code:  urn:ogc:def:crs:EPSG::5703
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  2008 - 2009 Oregon Department of Geology and Mineral Industries (DOGAMI) South Coast LiDAR Project
            alternateTitle:  or2008_dogami_m519_metadata
            date:  (CI_Date)
                date:  2009
                dateType:  (CI_DateTypeCode) publication
            identifier:  (MD_Identifier)
                authority:  (CI_Citation)
                    title:  NOAA/NMFS/EDM
                    date: (inapplicable)
                code:
                  Anchor:  InPort Catalog ID 49903
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName: (inapplicable)
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://www.fisheries.noaa.gov/inport/item/49903
                        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
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                organisationName: (inapplicable)
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://coast.noaa.gov
                        protocol:  WWW:LINK-1.0-http--link
                        name:   Citation URL
                        description:  Online Resource
                        function:  (CI_OnLineFunctionCode) download
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                organisationName: (inapplicable)
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://coast.noaa.gov/dataviewer
                        protocol:  WWW:LINK-1.0-http--link
                        name:   Citation URL
                        description:  Online Resource
                        function:  (CI_OnLineFunctionCode) download
                role: (inapplicable)
        abstract:  The Oregon Department of Geology and Mineral Industries (DOGAMI) contracted with Watershed Sciences, Inc. to collect high resolution topographic LiDAR data for multiple areas within the State of Oregon. The areas for LiDAR collection have been designed as part of a collaborative effort of state, federal, and local agencies in order to meet a wide range of project goals. This LiDAR data set was collected between May 3, 2008 and April 25, 2009 and encompasses portions of the following counties in southwest Oregon: Coos, Curry, Lane, and Douglas. This data set consists of bare earth and unclassified points. There are approximately 8 points per square meter over terrestrial surfaces. In some areas of heavy vegetation or forest cover, there may be relatively few ground points in the LiDAR data. Elevation values for open water surfaces are not valid elevation values because few LiDAR points are returned from water surfaces. LiDAR intensity values were also collected. This LiDAR data set was collected on different dates and organized into 14 deliveries. To determine which delivery or deliveries are in your area of interest, view the delivery area coverage graphic at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental/2008_2009_dogami_oregon_lidar_south_coast.jpg The specific date of collection and total area covered for each delivery are listed below. Delivery 1: Date of Collection: 20080503-20080626 Total Area = 74.68 sq miles Delivery 2: Date of Collection: 20080503-20080626 Total Area = 138.73 sq miles Delivery 3: Date of Collection: 20080503-20080626 Total Area = 112.17 sq miles Delivery 4: Date of Collection: 20080612-20080629 Total Area = 177.55 sq miles Delivery 5: Date of Collection: 20080612-20080629 Total Area = 177.80 sq miles Delivery 6: Date of Collection: 20080615-20080803 Total Area = 437.95 sq miles Delivery 7: Date of Collection: 20080615-20080803 Total Area = 209.81 sq miles Delivery 8a: Date of Collection: 20080615-20080803 Total Area = 146.30 sq miles Delivery 8b: Date of Collection: 20080608-20080928 Total Area = 74.06 sq miles Delivery 9: Date of Collection: 20080608-20080928 Total Area = 217.22 sq miles Delivery 10: Date of Collection: 20080608-20080928 Total Area = 224.82 sq miles Delivery 11: Date of Collection: 20080727-20090425 Total Area = 237.06 sq miles Delivery 12: Date of Collection: 20080727-20090425 Total Area = 216.10 sq miles Delivery 13: Date of Collection: 20080727-20090425 Total Area = 181.17 sq miles Original contact information: Contact Name: Ian Madin Contact Org: DOGAMI Phone: 971-673-1542 Email: ian.madin@dogami.state.or.us This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
        purpose:  Provide high resolution terrain elevation and land cover elevation data.
        credit:  DOGAMI 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
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Bare earth
            keyword:  Bare ground
            keyword:  DOGAMI
            keyword:  High-resolution
            keyword:  Light Detection and Ranging
            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]: 2008 - 2009 Oregon Department of Geology and Mineral Industries (DOGAMI) South Coast LiDAR Project [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49903.
        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 the Oregon Department of Geology and Mineral Industries (DOGAMI), 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:  49903
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (inapplicable)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/49903.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) vector
        language:  eng; US
        topicCategory:  (MD_TopicCategoryCode) elevation
        environmentDescription:  Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.0.1324
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -124.568779
                eastBoundLongitude:  -123.545579
                southBoundLatitude:  41.996103
                northBoundLatitude:  44.000003
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    description:   | Currentness: Ground Condition
                    beginPosition:  2008-05-03
                    endPosition:  2009-04-25
        supplementalInformation:  Each delivery has an Oregon LiDAR Commission (OLC) QC Analysis Report and a Watershed Sciences LiDAR Report which may be accessed at: Delivery 1: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental Delivery 2: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental Delivery 3: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental Delivery 4: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental Delivery 5: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental Delivery 6, 7 and 8a: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental Delivery 8b, 9 and 10: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental Delivery 11, 12 and 13: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental A footprint of this data set may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/519/supplemental/2008-2009_DOGAMI_Oregon_South_Coast_Lidar.kmz
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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
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) distributor
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=519
                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/geoid18/519/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:  Horizontal Positional Accuracy
            evaluationMethodDescription:  Horizontal accuracies were not specified in the agreement since true horizontal accuracy is regarded as a product of the LiDAR ground foot print. LiDAR is referenced to co-acquired GPS base station data that has accuracies far greater than the value of the LiDAR foot print. The ground footprint is equal to 1/3333rd of above ground flying height. Survey altitude for this acquisition was targeted at 900 meters yielding a ground foot print of 0.27 meters. This value exceeds the typical accuracy value of ground control used to reference the LiDAR data (<0.01m). Project specifications required the LiDAR foot print to fall within 0.15 and 0.40 meters. For more information about the horizontal accuracy, please refer to the reports for each delivery, listed above in the Supplemental_Information field of this metadata record.
            result: (missing)
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy
            evaluationMethodDescription:  Because this data set was collected in 14 different deliveries, each delivery has a different RMSE. The specific RMSE for each delivery is listed below: Delivery 1: RMSE: 0.061 m (0.2 ft) Delivery 2: RMSE: 0.066 m (0.21 ft) Delivery 3: RMSE: 0.054 m (0.178 ft) Delivery 4: RMSE: 0.057 m (0.187 ft) Delivery 5: RMSE: 0.058 m (0.191 ft) Delivery 6: RMSE: 0.057 m (0.186 ft) Delivery 7: RMSE: 0.057 m (0.186 ft) Delivery 8a: RMSE: 0.057 m (0.186 ft) Delivery 8b: RMSE: 0.073 m (0.24 ft) Delivery 9: RMSE: 0.073 m (0.24 ft) Delivery 10: RMSE: 0.073 m (0.24 ft) Delivery 11: RMSE: 0.071 m (0.158 ft) Delivery 12: RMSE: 0.071 m (0.158 ft) Delivery 13: RMSE: 0.071 m (0.158 ft) For more information about the vertical accuracies, please refer to the survey reports for each of these deliveries, listed above in the Supplemental_Information field of this metadata record.
            result: (missing)
        report:  (DQ_CompletenessCommission)
            nameOfMeasure:  Completeness Report
            evaluationMethodDescription:  LiDAR data has been collected and processed for all areas within the project study area.
            result: (missing)
        report:  (DQ_ConceptualConsistency)
            nameOfMeasure:  Conceptual Consistency
            evaluationMethodDescription:  Upon receipt from vendor (Watershed Sciences), all LiDAR data was independently reviewed by staff from the Oregon Department of Geology and Mineral Industries (DOGAMI) to ensure project specifications were met. All data were inventoried for completeness and data were checked for quality, which included examining LiDAR data for errors associated with internal data consistency, model quality, and accuracy.
            result: (missing)
        lineage:  (LI_Lineage)
            statement: (missing)
            processStep:  (LI_ProcessStep)
                description:  The LiDAR data was collected between May 3, 2008 and April 25, 2009. The survey used a Leica ALS50 Phase II laser system mounted in a Cessna Caravan 208B. The system was set to acquire > or = 105,000 laser pulses per second (i.e. 105 kHz pulse rate) and flown at 900 meters above ground level (AGL), capturing a scan angle of +/- 14 degrees from nadir. These settings were developed to yield points with an average native density of > or = 8 points per square meter over terrestrial surfaces. The native pulse density is the number of pulses emitted by the LiDAR system. Some types of surfaces (i.e. dense vegetation or water) may return fewer pulses than the laser originally emitted. Therefore, the delivered density can be less than the native density and lightly variable according to distributions of terrain, land cover, and water bodies. The completed areas were surveyed with opposing flight line side-lap of > or = 50% (> or = 100% overlap) to reduce laser shadowing and increase surface laser painting. The system allows up to four range measurements per pulse, and all discernible laser returns were processed for the output dataset. During the LiDAR survey of the study area, a static (1 Hz recording frequency) ground survey was conducted over monuments with known coordinates. After the airborne survey, the static GPS data are processed using triangulation with CORS stations checked against the Online Positioning User Service (OPUS) to quantify daily variance. Multiple sessions are processed over the same monument to confirm the antenna height measurements and reported position accuracy. Multiple DGPS units are used for the ground real-time kinematic (RTK) portion of the survey. To collect accurate ground surveyed points, a GPS base unit is set up over monuments to broadcast a kinematic correction to a roving GPS unit. The ground crew uses a roving unit to receive radio-relayed kinematic corrected positions from the base unit. This method is referred to as real-time kinematic (RTK) surveying and allows precise location measurement (sigma < or = 1.5 cm (0.6 in)).
                dateTime:
                  DateTime:  2009-01-01T00:00:00
            processStep:  (LI_ProcessStep)
                description:  1. Laser point coordinates are computed using the IPAS and ALS Post Processor software suites based on independent data from the LiDAR system (pulse time, scan angle), and aircraft trajectory data (SBET). Laser point returns (first through fourth) are assigned an associated (x, y, z) coordinate along with unique intensity values (0-255). The data are output into large LAS v. 1.1 files; each point maintains the corresponding scan angle, return number (echo), intensity, and x, y, z (easting, northing, and elevation) information. 2. These initial laser point files are too large to process. To facilitate laser point processing, bins (polygons) are created to divide the dataset into manageable sizes (< 500 MB). Flightlines and LiDAR data are then reviewed to ensure complete coverage of the study area and positional accuracy of the laser points. 3. Once the laser point data are imported into bins in TerraScan, a manual calibration is performed to assess the system offsets for pitch, roll, heading, and mirror scale. Using a geometric relationship developed by Watershed Sciences, each of these offsets is resolved and corrected if necessary. 4. The LiDAR points are then filtered for noise, pits, and birds by screening for absolute elevation limits, isolated points, and height above ground. Each bin is then inspected for pits and birds manually; spurious points are removed. For a bin containing approximately 7.5-9.0 million points, an average of 50-100 points are typically found to be artificially low or high. These spurious non-terrestrial laser points must be removed from the dataset. Common sources of non-terrestrial returns are clouds, birds, vapor, and haze. 5. The internal calibration is refined using TerraMatch. Points from overlapping lines are tested for internal consistency and final adjustments are made for system misalignments (i.e., pitch, roll, heading offsets and mirror scale). Automated sensor attitude and scale corrections yield 3-5 cm improvements in the relative accuracy. Once the system misalignments are corrected, vertical GPS drift is then resolved and removed per flight line, yielding a slight improvement (<1 cm) in relative accuracy. At this point in the workflow, data have passed a robust calibration designed to reduce inconsistencies from multiple sources (i.e. sensor attitude offsets, mirror scale, GPS drift) using a procedure that is comprehensive (i.e. uses all of the overlapping survey data). Relative accuracy screening is complete. 6. The TerraScan software suite is designed specifically for classifying near-ground points (Soininen, 2004). The processing sequence begins by 'removing' all points that are not 'near' the earth based on geometric constraints used to evaluate multi-return points. The resulting bare earth (ground) model is visually inspected and additional ground point modeling is performed in site-specific areas (over a 50-meter radius) to improve ground detail. This is only done in areas with known ground modeling deficiencies, such as: bedrock outcrops, cliffs, deeply incised stream banks, and dense vegetation. In some cases, ground point classification includes known vegetation (i.e., understory, low/dense shrubs, etc.) and these points are manually reclassified as non-grounds.
                dateTime:
                  DateTime:  2009-01-01T00:00:00
            processStep:  (LI_ProcessStep)
                description:  The NOAA Office for Coastal Management (OCM) received the files in las format. The files contained LiDAR elevation and intensity measurements. The data were in Oregon Lambert (NAD83), International Feet coordinates and NAVD88 (Geoid 03) vertical datum. OCM performed the following processing to the data to make it available within the Digital Coast: 1. The data were converted from Oregon Lambert (NAD83), International Feet coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid 03. 3. The vertical units of the data were converted from International feet to meters. 4. The data were sorted by latitude and the headers were updated.
                dateTime:
                  DateTime:  2010-06-01T00:00:00
            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:  2023-08-01T05:58:52
                processor:  (CI_ResponsibleParty)
                    individualName:  NOAA Office for Coastal Management
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            electronicMailAddress:  coastal.info@noaa.gov
                    role:  (CI_RoleCode) processor