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identificationInfo
distributionInfo
dataQualityInfo
metadataMaintenance
acquisitionInformation

2011 U.S. Army Corps of Engineers (USACE) Topographic LiDAR: Massachusetts and New Hampshire
 (MI_Metadata)
    fileIdentifier:  gov.noaa.csc.maps:ne2011_ncmp_manh_m2611
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  Mike Sutherland(author) (CI_ResponsibleParty)
        organisationName: (template)
        role:  (CI_RoleCode) author
    dateStamp:  2014-01-27
    metadataStandardName:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
    metadataStandardVersion:  ISO 19115-2:2009(E)
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    spatialRepresentationInfo:  (MD_VectorSpatialRepresentation)
        geometricObjects:  (MD_GeometricObjects)
            geometricObjectType:  (MD_GeometricObjectTypeCode) point
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    referenceSystemInfo:  NAD83
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    referenceSystemInfo:  Ellipsoid
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  2011 U.S. Army Corps of Engineers (USACE) Topographic LiDAR: Massachusetts and New Hampshire
            date:  (CI_Date)
                date:  2013-12-01
                dateType:  (CI_DateTypeCode) publication
            citedResponsibleParty:  NOAA CSC (originator)
            citedResponsibleParty:  JALBTCX (originator)
            citedResponsibleParty:  NOAA CSC (publisher) (CI_ResponsibleParty)
                organisationName: (template)
                role:  (CI_RoleCode) publisher
            presentationForm:  (CI_PresentationFormCode) imageDigital
        abstract:  These files contain classified topographic and bathymetric lidar data as unclassified valid topographic data (1), valid topographic data classified as ground (2), noise (7), and valid bathymetric data (11). Classes 1, 2 and 7 aredefined in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards, while class 11 is specific to NOAA CSC. These data were collected by the Compact Hydrographic Airborne RapidTotal Survey (CHARTS) system along the coast of Massachusetts and New Hampshire. CHARTS integrates topographic and bathymetric lidar sensors, a digital camera and a hyperspectral imager on a single remote sensing platform for usein coastal mapping and charting activities. Data coverage generally extends along the coastline from the waterline inland 500 meters (topography) and offshore 1,000 meters or to laser extinction (bathymetry). Native lidar data isnot generally in a format accessible to most Geographic Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be importedinto GIS software for visualization and further analysis. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 (NAD83). Vertical positions are referencedto the NAD83 ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID03 model is used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datumof 1988 (NAVD88). The 3-D position data are sub-divided into a series of LAS files, each covering approximately 5 kilometers of shoreline. The format of the file is LAS version 1.2.
        purpose:  These data were collected as a part of the NCMP to depict the elevations above and below the water in the Massachusetts and New Hampshire coastal zone.
        status:  (MD_ProgressCode) completed
        pointOfContact:  JALBTCX (pointOfContact) (CI_ResponsibleParty)
            organisationName: (template)
            role:  (CI_RoleCode) pointOfContact
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        graphicOverview:  (MD_BrowseGraphic)
            fileName:  ftp://csc.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/2611/supplemental/ne2011_ncmp_manh.kmz
            fileDescription:  This kmz file shows the extent of coverage for the 2011 USACE Topographic Lidar: MA and NH lidar data set.
            fileType:  kmz
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Topography/Bathymetry
            keyword:  Remote Sensing
            keyword:  LiDAR
            keyword:  U.S. Army Corps of Engineers (USACE)
            keyword:  Mobile District
            keyword:  National Coastal Mapping Program (NCMP)
            keyword:  Classified LAS
            keyword:  Classified LAZ
            keyword:  Scanning Hydrographic Operational Airborne Lidar System (SHOALS)
            keyword:  IWG-OCM
            keyword:  Compact Hydrographic Airborne Rapid Total Survey (CHARTS)
            keyword:  Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX)
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  None
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  USA
            keyword:  Massachusetts
            keyword:  Essex County
            keyword:  New Hampshire
            keyword:  Rockingham County
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  None
                date: (unknown)
        resourceConstraints:  Lidar Use Limitation
        resourceConstraints:  NOAA Legal Statement
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) vector
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) elevation
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -70.866429
                eastBoundLongitude:  -70.659773
                southBoundLatitude:  42.647594
                northBoundLatitude:  42.927010
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  2011-09-25
                    endPosition:  2011-09-30
        supplementalInformation:  These data covered the required survey area with minimal gaps in data coverage except where poor water quality prohibited bathymetric data acquisition. In areas of dense vegetation the points classified as ground might be incorrectly classified due to the inability of the laser to penetrate the canopy and reach the bare ground.
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  LAZ
            version: (unknown)
        distributor:  (MD_Distributor)
            distributorContact:  NOAA CSC(distributor) (CI_ResponsibleParty)
                organisationName: (template)
                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:  Mike Sutherland
            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:  The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than +/- 0.75 m.
            result: (missing)
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Horizontal Positional Accuracy
            measureDescription:  RMSE @ 95% Confidence. Units in meters.
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:
                value:
                  Record:  0.75
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy Report
            evaluationMethodDescription:  The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better than +/- 0.20 m.
            result: (missing)
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy
            measureDescription:  RMSE @ 95% Confidence. Units in meters.
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:
                value:
                  Record:  0.20
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  This data set covers the spatial extent of bathymetric and topographic lidar data obtained during this survey.
            result: (unknown)
        report:  (DQ_ConceptualConsistency)
            measureDescription:  Differences between a DEM created from the lidar data representing bare ground and the ground truth data is unbiased and within +/- 20 cm (RMSE) in flat terrain and within +/-30 cm (RMSE) in hilly terrain.
            result: (unknown)
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  These data were collected using the CHARTS system. It is owned by the Naval Oceanographic Office and operated through contract. The system collects topographic lidar data at 10 kHz, bathymetric lidar data at 1 kHz and RGBimagery at 1Hz. A CASI-1500 hyperspectral line scanner is integrated with the system as well. Aircraft position, velocity and acceleration information are collected through a combination of Novatel and POS A/V 410 equipment.All raw data streams are transferred to the office for downloading and processing in SHOALS GCS software. Aircraft position data are processed using POSPac software and the results are combined with the lidar data to produce3-D positions for each lidar shot. Upon inspection and QA/QC in the software packages Fledermaus and PFM_ABE, anomalous data are flagged as invalid. PFM_ABE's charts2las module then converts all valid data from ellipsoid toorthometric heights based on the NGS' GEOID03 model and exports topographic and bathymetric data as a series of LAS files, one file per flight line. The format of the file is LAS version 1.2. Data are classified as 0 (validtopographic data), 21 (valid topographic data acquired with the bathymetric sensor), 27 (invalid topographic and bathymetric data), 29 (valid bathymetric data).
                dateTime: (unknown)
                processor:  JALBTCX (processor) (CI_ResponsibleParty)
                    organisationName: (template)
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  The flightline LAS files are imported into GeoCue V7.0.3.5, which is a geospatial workflow production and management software tool employed by JALBTCX to perform and monitor production of data products. Upon import into GeoCue,the flightline LAS files are divided into a series of boxes, each of which are 1500 meters in length and width. A customized classification macro, built upon the TerraScan V11 module within Microstation V8i, classifies validtopographic data as ground points (2) and unclassified points (1). Upon completion the macro, the classification results undergo quality control and any misclassified points are manually edited. In areas of dense vegetation thebare earth ground points might be incorrectly classified due to the inability of the laser to penetrate the canopy and reach the bare ground. In these areas, JALBTCX defaults to the algorithms ground surface instead of manuallyreclassifying those points. The final classification results are comprised of individual lidar points with classifications of ground (2) or unclassified (1). They are partitioned into a series of 5km delivery boxes, oneClassified LAS file per box. The format of the file is LAS version 1.2. Data are classified as 1 (valid non-ground topographic data), 2 (valid ground topographic data), 21 (valid topographic data acquired with the bathymetricsensor), 27 (invalid topographic and bathymetric data), 29 (valid bathymetric data).
                dateTime: (unknown)
                processor:  JALBTCX (processor) (CI_ResponsibleParty)
                    organisationName: (template)
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  The NOAA Coastal Services Center (CSC) received the las files from JALBTCX on hard drive. The files contained lidar elevation and intensity measurements. The data were received in Geographic, NAD83 coordinates and were vertically referenced to NAVD88 using the Geoid03 model. The vertical units of the data were meters. CSC performed the following processing for data storage and Digital Coast provisioning purposes:1. All points in Class 29 (valid bathymetry) were converted to Class 11. 2. The topographic las files were compressed to laz v1.2 using LASTools' laszip software. 3. GPS Week Time Information was converted to Adjusted Standard GPS Time using LASTools' las2las software. 4. The topographic laz files were converted from orthometric (NAVD88) heights to ellipsoidal heights using Geoid03.
                dateTime:
                  DateTime:  2013-12-01T00:00:00
                processor:  NOAA CSC (processor) (CI_ResponsibleParty)
                    organisationName: (template)
                    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:  2014-01-27T00:00:00
                processor:  Mike Sutherland (processor) (CI_ResponsibleParty)
                    organisationName: (template)
                    role:  (CI_RoleCode) processor
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        dateOfNextUpdate:  2015-01-27
        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 2014-01-27T12:33:51.347-05:00
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  Optech SHOALS-3000 (CHARTS)
            type:  Light Detection and Ranging