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2019 NOAA Lidar: Padilla Bay NERR and Skagit River Delta, WA
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                voice:  (843) 740-1202
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                deliveryPoint:  2234 South Hobson Ave
                city:  Charleston
                administrativeArea:  SC
                postalCode:  29405-2413
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                electronicMailAddress:  coastal.info@noaa.gov
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      DateTime:  2020-09-15T00:00:00
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  2019 NOAA Lidar: Padilla Bay NERR and Skagit River Delta, WA
            date:  (CI_Date)
                date:  2020-01-17
                dateType:  (CI_DateTypeCode) publication
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                    title:  NOAA/NMFS/EDM
                    date: (inapplicable)
                code:
                  Anchor:  InPort Catalog ID 58941
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                        linkage: https://coast.noaa.gov/htdata/lidar3_z/geoid18/data/9035/supplemental/NVA-DEM.pdf
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                        linkage: https://coast.noaa.gov/htdata/lidar3_z/geoid18/data/9035/supplemental/Accuracy_Report_UTM.pdf
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                        linkage: https://coast.noaa.gov/htdata/lidar3_z/geoid18/data/9035/supplemental/VVA-lidar.pdf
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                        linkage: https://coast.noaa.gov/htdata/lidar3_z/geoid18/data/9035/supplemental/NVA-lidar.pdf
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                        linkage: https://coast.noaa.gov/htdata/lidar3_z/geoid18/data/9035/supplemental/Project_Report_NOAA_WA_LiDAR_update24Feb2020.pdf
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                        linkage: https://coast.noaa.gov/htdata/lidar3_z/geoid18/data/9035/supplemental/VVA-DEM.pdf
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                        name:  Dataset report
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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 dataset is a LiDAR (Light Detection and Ranging) point cloud of the coastal tidal parts of Skagit and Snohomish Counties in WA State. The National Oceanic and Atmospheric Administration’s Office for Coastal Management contracted with Tetra Tech to acquire and process airborne LiDAR over an area of about 186 square miles. Data was to be acquired within a 2 hour window of low tide. Deliverables included classified LiDAR point clouds, breaklines and digital elevation models (DEM). LiDAR data was acquired on 13 and 14 of August 2019. The coastal area was covered in one flight on 8/14 while the inland area was covered on 8/13. The coastal flight took place on 8/14 with a tide window between -0.7 and +0.5 foot. For the airborne LiDAR flight Tetra Tech subcontracted with Eagle Mapping. The data was acquired with a Riegl LMS VQ780i sensor. A ground control survey was conducted to collect calibration points and check points. For the ground survey, Tetra Tech contracted with Compass Data. The LiDAR data and derivative products were to be based on the USGS LiDAR Base Specifications. The coordinate reference system is UTM Zone 10N meters, NAD83(2011). The vertical datum is NAVD88 with Geoid12B. This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
        purpose:  The purpose of this data is to support coastal resource managers, watershed managers, and various stakeholders in their decision making processes.
        credit:  NOAA Office for Coastal Management (NOAA/OCM) 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 Oct 20, 2020 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:  Website
                    description:  NOAA Office for Coastal Management Home Page
                    function:  (CI_OnLineFunctionCode) information
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        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:  Website
                    description:  NOAA Office for Coastal Management Home Page
                    function:  (CI_OnLineFunctionCode) information
            role:  (CI_RoleCode) custodian
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            fileName: https://coast.noaa.gov/htdata/lidar3_z/geoid18/data/9035/supplemental/extent_PadillaBay_NERR_m9035.kmz
            fileDescription:  This graphic displays the footprint for this lidar data set.
            fileType:  KML
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Earth Science > Land Surface > Topography > Terrain Elevation
            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)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Continent > North America > United States Of America
            keyword:  Continent > North America > United States Of America > U.S. Coastline
            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)
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            keyword:  Aircraft > Aircraft
            type:  (MD_KeywordTypeCode) platform
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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
            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:  Lidar
            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 Office for Coastal Management or its partners
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            handlingDescription: (missing)
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                        date: (inapplicable)
                    code:  58941
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                    organisationName: (inapplicable)
                    contactInfo:  (CI_Contact)
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                            linkage: https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/58941.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)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -122.583147
                eastBoundLongitude:  -122.29409
                southBoundLatitude:  48.157119
                northBoundLatitude:  48.644291
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    description:   | Currentness: Ground Condition
                    beginPosition:  2019-08-13
                    endPosition:  2019-08-14
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            name:  Zip
            version: (missing)
            fileDecompressionTechnique:  Zip
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            name:  LAZ
            version: (missing)
        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:  Website
                        description:  NOAA Office for Coastal Management Home Page
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                linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9035
                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. A new metadata will be produced to reflect your request using this record as a base. Change to an orthometric vertical datum is one of the many options.
                function:  (CI_OnLineFunctionCode) download
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                linkage: https://coast.noaa.gov/htdata/lidar3_z/geoid18/data/9035
                protocol:  WWW:LINK-1.0-http--link
                name:  Bulk Download
                description:  Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document. They will be in an orthometric datum.
                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:  The data has been collected to meet or exceed a horizontal accuracy of <= 1m.
            result: (missing)
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy
            evaluationMethodDescription:  Ground control survey was conducted by CompassData. CompassData collected 31 points in non-vegetated areas (NVA) and 21 points in vegetated areas (VVA). 7 of the NVA points were provide to Eagle Mapping for point cloud calibration. These points were not used in the absolute accuracy testing. Four control reports were prepared to document the absolute accuracy of the ground classified LiDAR data and the derived digital elevation models. The absolute accuracy was tested for the NVA assessment of the classified ground points, VVA assessment of the classified ground points, NVA assessment of the DEM, and VVA assessment of the DEM. Three VVA points were removed because they were located on slopes, one VVA point was removed automatically as being an outlier. The vertical accuracy requirements for this project for the point cloud data were: NVA RMSE < 0.1 m and NVA 95% error < 0.196m The NVA RMSEz = 0.04 m and was calculated using 25 vertical checkpoints on flat hard surfaces in non vegetated open terrain. The NVA error at the 95 % level z = 0.037 m and was calculated using 25 vertical checkpoints on flat hard surfaces in non vegetated open terrain. The VVA RMSEz = 0.125 m and was calculated using 18 vertical checkpoints on flat hard surfaces in non vegetated open terrain. The VVA error at the 95% level = 0.194 m was calculated using 18 vertical checkpoints on flat hard surfaces in non vegetated open terrain.
            result: (missing)
        report:  (DQ_CompletenessCommission)
            nameOfMeasure:  Completeness Report
            evaluationMethodDescription:  The Area of interest covers approximately 186 square miles and has been extended by a buffer of 100 meters. The classified LAS files cover the entire area and include all points. No points inside the area were removed. All swaths were inspected to ensure that there are no data gaps except over water bodies.
            result: (missing)
        report:  (DQ_ConceptualConsistency)
            nameOfMeasure:  Conceptual Consistency
            evaluationMethodDescription:  The LiDAR data and derived products cover the 186 square mile area of interest (AOI) plus a 100 meter buffer. The classified LiDAR point cloud and the derived breaklines hav been clipped to the buffered AOI. The derived digital elevation model (DEM) has a define NoDataValue outside of the buffered AOI. All data is delivered in 82 tiles. There are no data gaps or mismatches between tiles.
            result: (missing)
        lineage:  (LI_Lineage)
            statement: (missing)
            processStep:  (LI_ProcessStep)
                description:  Flight Acquisition: LiDAR data was acquired on 13 and 14 of August 2019. The coastal area was covered in one flight on August 14 while the inland area was covered on August 13. The coastal flight took place on August 14 with a tide window between -0.7 and +0.5 foot. For the airborne LiDAR flight Tetra Tech subcontracted with Eagle Mapping. The data was acquired with a Riegl LMS VQ780i sensor.
                dateTime:
                  DateTime:  2019-08-14T00:00:00
            processStep:  (LI_ProcessStep)
                description:  Point Cloud Processing: The point cloud data was classified using the software tools Microstation, TerraScan and TerraModeler. Ground points were classified using a macro developed in-house. These points were then edited further manually to obtain the best bare earth representation. Water points were classified and edited using the hydro breaklines. Low, medium and high vegetation points were classified as per the following heights from the ground: low vegetation (0 to 0.6m), medium vegetation (0.6 to 1.5m), high vegetation (above 1.5m). Ignored ground points (class 20) were classified using 0.5m buffer distance from the hydro-breaklines. Bridge decks were identified using the surface file and classified accordingly. High and Low points were identified and classified into their respective classes. The point cloud data was finally tiled out in LP360 with the correct definition of the projected coordinate system. The point cloud has been classified using the following classes: Class Description Point Count Min Average Max Class 1 Default (11,419,873 points) Class 2 Ground (2,607,438,873 points) Class 3 Low_vegetation (1,631,352,621 points) Class 4 Medium_vegetation (151,567,537 points) Class 5 High_vegetation (1,039,793,650 points) Class 7 Low_point (840,222 points) Class 9 Water (145,165,821 points) Class 17 Bridge decks (870,198points) Class 18 High_noise (13,400 points) Class 20 Ignored Ground (867,734 points)
                dateTime:
                  DateTime:  2020-01-16T00:00:00
            processStep:  (LI_ProcessStep)
                description:  OCM received 82 laz files from TetraTech. Data was received in UTM 10N NAD 83 (2011) meters horizontally and NAVD88 meters vertically. The data were classified as: 1 Default, 2 Ground, 3 Low_vegetation, 4 Medium_vegetation, 5 High_vegetation, 7 Low_point, 9 Water, 17 Bridge decks, 18 High_noise, Class 20 Ignored Ground. OCM processed all classifications of points to the Digital Coast Data Access Viewer (DAV). OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: 1. An internal OCM script was run to check the number of points by classification and by flight ID and the gps and intensity ranges. 2. Internal OCM scripts were run on the laz files to convert from orthometric (NAVD88) elevations to ellipsoid elevations using the Geoid12B model, to convert from UTM 10N NAD83 (2011) coordinates in meters to geographic coordinates, to assign the geokeys, to sort the data by gps time and zip the data to database and to http.
                processor:  (CI_ResponsibleParty)
                    organisationName:  Office for Coastal Management
                    role:  (CI_RoleCode) processor
            source:  (LI_Source)
                sourceCitation:  (CI_Citation)
                    title:  Lidar
                    date: (missing)
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  TetraTech
                        role:  (CI_RoleCode) originator
            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:  2020-10-20T05:13:23
                processor:  (CI_ResponsibleParty)
                    individualName:  NOAA Office for Coastal Management
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            electronicMailAddress:  coastal.info@noaa.gov
                    role:  (CI_RoleCode) processor