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2012 USACE Post Hurricane Sandy Topographic LiDAR: Rhode Island and Massachusetts Coast
 (MI_Metadata)
    fileIdentifier:  gov.noaa.csc.maps:2012_USACE_PostSandy_MA_RI_m1435
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  (CI_ResponsibleParty)
        individualName:  Mike Sutherland
        organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
        contactInfo:  (CI_Contact)
            phone:  (CI_Telephone)
                voice:  303-497-6120
                facsimile:  303-497-6513
            address:  (CI_Address)
                deliveryPoint:  NOAA/NESDIS/NGDC E/GC1 325 Broadway
                city:  Boulder
                administrativeArea:  CO
                postalCode:  80305-3328
                country:  USA
                electronicMailAddress:  mike.sutherland@noaa.gov
            hoursOfService:  7:30am-5:00pm Mountain
        role:  (CI_RoleCode) author
    dateStamp:  2013-02-20
    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:  (MD_VectorSpatialRepresentation)
        geometricObjects:  (MD_GeometricObjects)
            geometricObjectType:  (MD_GeometricObjectTypeCode) point
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    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            authority:  (CI_Citation)
                title:  North American Datum 1983
                alternateTitle:  NAD83
                date:  (CI_Date)
                    date:  2007-01-19
                    dateType:  (CI_DateTypeCode) revision
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
                            name:  NAD83
                            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: http://www.epsg-registry.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
            code:  urn:ogc:def:crs:EPSG::4269
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    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            code:  Ellipsoid in Meters
            codeSpace:  Local Vertical Reference
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  2012 USACE Post Hurricane Sandy Topographic LiDAR: Rhode Island and Massachusetts Coast
            date:  (CI_Date)
                date:  2013-01-01
                dateType:  (CI_DateTypeCode) publication
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  843-740-1200
                    address:  (CI_Address)
                        deliveryPoint:  2234 South Hobson Ave.
                        city:  Charleston
                        administrativeArea:  SC
                        postalCode:  29405-2413
                        electronicMailAddress:  coastal.info@noaa.gov
                    onlineResource:  (CI_OnlineResource)
                        linkage: http://coast.noaa.gov
                role:  (CI_RoleCode) originator
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  US Army Corps of Engineers (USACE) Engineer Research and DEvelopment Center (ERDC) Cold Regions Research and Engineering Laboratory (CRREL)
                role:  (CI_RoleCode) originator
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  843-740-1200
                    address:  (CI_Address)
                        deliveryPoint:  2234 South Hobson Ave.
                        city:  Charleston
                        administrativeArea:  SC
                        postalCode:  29405-2413
                        electronicMailAddress:  coastal.info@noaa.gov
                    onlineResource:  (CI_OnlineResource)
                        linkage: http://coast.noaa.gov
                role:  (CI_RoleCode) publisher
            presentationForm:  (CI_PresentationFormCode) imageDigital
        abstract:  This topographic elevation point data derived from multiple return light detection and ranging (LiDAR) represents 354.272 square miles of coastline for Rhode Island and Massachusetts. The LiDAR point cloud is delivered in LAS 1.2 format with the following classifications: Class 1: Unclassified Class 2: Ground Class 9: Water Class 10: Ignored Points Class 12: Overlap
        purpose:  HQ, USACE required digital elevation data to generate digital elevation models and contours for use in: damage assessment to USACE projects, engineering design and design reviews, conservation planning, research, delivery, floodplain mapping and hydrologic modeling using LiDAR technology.
        status:  (MD_ProgressCode) completed
        pointOfContact:  (CI_ResponsibleParty)
            individualName:  Steve Newman
            organisationName:  ERDC-CRREL, RS/GIS and Water Branch
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  (603) 646-4372
                address:  (CI_Address)
                    deliveryPoint:  72 Lyme Road
                    city:  Hanover
                    administrativeArea:  NH
                    postalCode:  03755
                    electronicMailAddress:  Stephen.D.Newman@usace.army.mil
            role:  (CI_RoleCode) pointOfContact
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        graphicOverview:  (MD_BrowseGraphic)
            fileName:  ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/ny/usace/2012_USACE_PostSandy_MA_RI_footprint.KMZ
            fileDescription:  This kmz file shows the extent of coverage for the 2012 USACE Post-Hurricane Sandy Rhode Island and Massachusetts lidar data set.
            fileType:  kmz
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Bathymetry/Topography
            keyword:  LiDAR
            keyword:  LAS
            keyword:  Elevation
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Keywords
                date:
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Massachusetts
            keyword:  Nantucket County
            keyword:  Dukes County
            keyword:  Barnstable County
            keyword:  Bristol County
            keyword:  Rhode Island
            keyword:  Newport County
            keyword:  Washington County
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  None
                date:
        resourceConstraints:  (MD_Constraints)
            useLimitation:  These data depict the elevations at the time of the survey and are only accurate for that time. 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. Any conclusions drawn from analysis of this information are not the responsibility of NOAA or any of its partners. These data are NOT to be used for navigational purposes.
        resourceConstraints:  (MD_LegalConstraints)
            useLimitation:  While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) vector
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) elevation
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -71.9092352
                eastBoundLongitude:  -69.9443770
                southBoundLatitude:  41.1295003
                northBoundLatitude:  41.6023329
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  2012-11-11
                    endPosition:  2012-11-22
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  LAZ
            version:
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  843-740-1200
                    address:  (CI_Address)
                        deliveryPoint:  2234 South Hobson Ave.
                        city:  Charleston
                        administrativeArea:  SC
                        postalCode:  29405-2413
                        electronicMailAddress:  coastal.info@noaa.gov
                    onlineResource:  (CI_OnlineResource)
                        linkage: http://coast.noaa.gov
                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                orderingInstructions:  The National Geophysical Data Center serves as the archive for this LIDAR data. NGDC should only be contacted for this data if it cannot be obtained from NOAA Coastal Services Center.
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                individualName:  Mike Sutherland
                organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  303-497-6120
                        facsimile:  303-497-6513
                    address:  (CI_Address)
                        deliveryPoint:  NOAA/NESDIS/NGDC E/GC1 325 Broadway
                        city:  Boulder
                        administrativeArea:  CO
                        postalCode:  80305-3328
                        country:  USA
                        electronicMailAddress:  mike.sutherland@noaa.gov
                    hoursOfService:  7:30am-5:00pm Mountain
                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                orderingInstructions:  The National Geophysical Data Center serves as the archive for this LIDAR dataset. NGDC should only be contacted for the data if it cannot be obtained from NOAA Coastal Services Center.
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Horizontal Positional Accuracy Report
            evaluationMethodDescription:  Expected horizontal accuracy of elevation products for the Optech ALTM 3100 sensor, as determined from system studies and other methods, is 1/2000th of the flight height, which, in the instance of this particular project was 1,250 meters AGL, giving a horizontal tolerance of less than 0.62 meter.
            result:
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy Report
            evaluationMethodDescription:  LiDAR Check Points were collected throughout the areas to assess the accuracy of the elevation data. The test points were collected in three land cover categories: - Open terrain (bare earth) - Marsh and low trees - High trees. Tested 0.214 Meter fundamental vertical accuracy at 95 percent confidence level in open terrain using RMSEz x 1.9600. Tested 0.350 Meter consolidated vertical accuracy at the 95th percentile in open terrain, marsh/low trees, and treed areas. Tested 0.265 Meter supplemental vertical accuracy at the 95th percentile in treed areas. Tested 0.397 Meter supplemental vertical accuracy at the 95th percentile in marsh and low tree areas.
            result:
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy
            measureDescription:  RMSE in meters
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:
                value:
                  Record:  0.109
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  The following methods are used to ensure LiDAR data accuracy: 1) Use of a ground control network utilizing GPS survey techniques 2) Use of airborne GPS and IMU in conjunction with the acquisition of LiDAR
            result:
        report:  (DQ_ConceptualConsistency)
            measureDescription:  Compliance with the accuracy standard was ensured by the collection of ground control and the establishment of a GPS base station at the operation airport. The following checks were performed: 1) The LiDAR data accuracy was validated by checking bare earth data against control and validation points spread throughout the project area. 2) LiDAR flightlines' overlap and edge matching were validated through visual inspection.
            result:
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  LIDAR ACQUISITION: A LiDAR survey was conducted between Nov 11 and Nov 22, 2012. An Optech 3100 sensor aboard a Cessna 206/G was utilized for the survey. Flight altitude was planned at 1,250-meters. See "PROJEC REPORT" for details regarding the flight.
                dateTime:
                  DateTime:  2012-11-01T00:00:00
            processStep:  (LE_ProcessStep)
                description:  CHECK POINT SURVEY: A GPS survey was conducted to assess the accuracy of the LiDAR data. See "SURVEY REPORT" for details of the check point survey.
                dateTime:
                  DateTime:  2012-11-01T00:00:00
            processStep:  (LE_ProcessStep)
                description:  LiDAR CALIBRATION: Data collection of the survey area resulted in a total of one-hundred and five flightlines, including eight control lines, covering the project area. The range files, flight logs, raw air and ground GPS files were then taken to the office for data processing using DashMap v 5.2 (Optech, Inc.). DashMap uses the SBET to generate a set of data points for each laser return in the LAS file format. Each data point is assigned an echo value so it can be segregated based on the first and last pulse information. This project's data were processed in strip form, meaning each flight line was processed independently. Processing the lines individually provides the data analyst with the ability to QC the overlap between lines. Each strip was then imported into a project using TerraScan (Terrasolid, Ltd.) and the project management tool GeoCue (GeoCue Corp.). By creating a project the various flightlines are combined while breaking the dataset as a whole into manageable pieces. This process also converts the dataset from UTM (NAD83, 2011) to the Geographic Coordinate System (NAD 83, 2011). The ellipsoid height values were converted to NAVD88, Meters, orthometric values using Geoid 12A, provided by National Geodetic Survey (NGS). Individual lines were then checked against adjacent lines and intersecting control lines to ensure a cohesive dataset.
                dateTime:
                  DateTime:  2012-12-01T00:00:00
            processStep:  (LE_ProcessStep)
                description:  LiDAR CLASSIFICATION & BREAKLINE COLLECTION: A classification routine was applied to extract the initial surface model. This initial surface model was then reduced using Magnolia Rivers' proprietary methods to create the final bare-earth dataset. Upon reaching a satisfactory classification result, the bare-earth data were then checked against the control and validation points across the project area. The results of these checks showed the DEM meeting accuracy requirements. Hydro-Flattening breaklines were collected where necessary to support the final digital elevation models. A Triangular Irregular Network (TIN) was generated using the lidar ground points for each preliminary tiled deliverable and the breaklines were placed in 2D with each element's height being adjusted to the surface to create a 3D element in the MicroStation (Bentley Systems, Inc.) environment.
                dateTime:
                  DateTime:  2012-12-01T00:00:00
            processStep:  (LE_ProcessStep)
                description:  INTENSITY IMAGERY: The intensity images were created for this project using GeoCue (version 2012.1.27.5). The images were derived from the full LiDAR point cloud native radiometric intensity values. As per the project specifications the intensity orthos were produced at a 1-meter pixel size for the entire project. The initial GeoTIFF images were produced in UTM Zone 19N NAD83(2011) and were then transformed (reprojected) to the geographic coordinate system for delivery using Global Mapper software (version 13.2.2; Blue Marble Geographics) and clipped to the deliverable tile boundaries with an additional 2-meter buffer applied to each tile.
                dateTime:
                  DateTime:  2012-12-01T00:00:00
            processStep:  (LE_ProcessStep)
                description:  MODEL KEY POINTS: Model key-points were classified (ASPRS Class 8) using the TerraScan (Terrasolid Ltd.) Classify Model Keypoints routine to classify LiDAR points that fell within a specified tolerance of the full resolution ground model (i.e. all classified ground returns) resulting in a reduced resolution surface model that meets a given accuracy. An accuracy tolerance of 0.15 meters was used for this processing.
                dateTime:
                  DateTime:  2012-12-01T00:00:00
            processStep:  (LE_ProcessStep)
                description:  DIGITAL ELEVATION MODELS: Digital Elevation Models (DEMs) of the bare earth ground surface were generated using the TerraModeler (Terrasolid Ltd.) software. The DEMs were produced by sampling elevations at a 1-meter posting from a triangulated irregular network (TIN) model based on all classified ground returns and 3-D breakline features and output as an ESRI ASCII GRID formatted file. These ASCII GRID files were then converted to ESRI Binary GRID format. Initially, these GRIDs were generated from points and breaklines in the UTM projection (Zone 19N, NAD83(2011)). These UTM GRIDs were then transformed to geographic coordinates, using Global Mapper software, for delivery. Geographic GRIDs were clipped to the deliverable tile extents with an additional 2-meter buffer applied to each tile.
                dateTime:
                  DateTime:  2012-12-01T00:00:00
            processStep:  (LE_ProcessStep)
                description:  LIDAR FLIGHT LINE POLYGONS: Boundary polygons were created from the collected LiDAR swaths as ESRI shapefiles using a triangulation algorithm that produces an tight fitting outer boundary with concavities that accurately represent the swaths as flown. The planned flight line number, swath file name and date of acquisition were then added as shapefile attributes.
                dateTime:
                  DateTime:  2012-12-01T00:00:00
            processStep:  (LE_ProcessStep)
                description:  The NOAA Coastal Services Center (CSC) received topographic files in LAS format. The files contained lidar elevation and intensity measurements. The data were received in geographic coordinates (NAD83) and were vertically referenced to NAVD88 using the Geoid12a model. The vertical units of the data were meters. CSC performed the following processing for data storage and Digital Coast provisioning purposes: 1. The topographic las files were converted from orthometric (NAVD88) heights to ellipsoidal heights using Geoid12a. 2. The data were converted to LAZ format.
                dateTime:
                  DateTime:  2013-01-01T00:00:00
                processor:  (CI_ResponsibleParty)
                    organisationName:  DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  843-740-1200
                        address:  (CI_Address)
                            deliveryPoint:  2234 South Hobson Ave.
                            city:  Charleston
                            administrativeArea:  SC
                            postalCode:  29405-2413
                            electronicMailAddress:  coastal.info@noaa.gov
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://coast.noaa.gov
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  The NOAA National Geophysical Data Center (NGDC) received lidar data files via ftp transfer from the NOAA Coastal Services Center. The data are currently being served via NOAA CSC Digital Coast at http://www.csc.noaa.gov/digitalcoast/. The data can be used to re-populate the system. The data are archived in LAS or LAZ format. The LAS format is an industry standard for LiDAR data developed by the American Society of Photogrammetry and Remote Sensing (ASPRS); LAZ is a loseless compressed version of LAS developed by Martin Isenburg (http://www.laszip.org/). The data are exclusively in geographic coordinates (either NAD83 or ITRF94). The data are referenced vertically to the ellipsoid (either GRS80 or ITRF94), allowing for the ability to apply the most up to date geoid model when transforming to orthometric heights.
                dateTime:
                  DateTime:  2013-02-20T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Mike Sutherland
                    organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  303-497-6120
                            facsimile:  303-497-6513
                        address:  (CI_Address)
                            deliveryPoint:  NOAA/NESDIS/NGDC E/GC1 325 Broadway
                            city:  Boulder
                            administrativeArea:  CO
                            postalCode:  80305-3328
                            country:  USA
                            electronicMailAddress:  mike.sutherland@noaa.gov
                        hoursOfService:  7:30am-5:00pm Mountain
                    role:  (CI_RoleCode) processor
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        dateOfNextUpdate:  2014-02-20
        maintenanceNote:  This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2013-01-04 version of the FGDC RSE to ISO 19115-2 for LiDAR transform.
        maintenanceNote:  Translated from FGDC 2013-02-20T11:26:30.545-07:00