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spatialRepresentationInfo
referenceSystemInfo
referenceSystemInfo
identificationInfo
distributionInfo
dataQualityInfo
metadataMaintenance

2002 Maryland Department of Natural Resources LiDAR: Worcester County
 (MI_Metadata)
    fileIdentifier:  gov.noaa.csc.maps:2002_MD_m15
    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:  2013-05-07
    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:  2002 Maryland Department of Natural Resources LiDAR: Worcester County
            date:  (CI_Date)
                date:  2006-10-18
                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:  Maryland Department of Natural Resources
                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
            otherCitationDetails:  1. Airborne 1 (flight firm)2. Computational Consulting Services, LLC (processing firm)3. Spatial Systems Associates, Inc. (post-processing firm)4. Dewberry & Davis (QA/QC firm)5. Maryland Department of Natural Resources
        abstract:  Light Detection and Ranging (LiDAR) is a method of locating objects on the ground using aerial-borne equipment. It is similar to RADAR or SONAR in that the two-way travel time of an energy beam reflected off an object is precisely measured, but this technology uses laser light instead of radio or sound waves. This technology has proven very useful in remote sensing of the earth. It can be used for determining elevations of both the earth's surface and items (natural and man-made) on the surface. Analysis of LiDAR data is used in detailed modeling of the earth's surface for drainage and floodplain studies, determining how a new structure will affect views from various locations, shoreline erosion studies, and other reasons. The bare earth mass points data show the calculated elevation of the earth's surface (the ground, without objects such as trees or buildings). Mass points may appear to have "holes" with no elevation values in areas where the surface could not be determined, such as very dense forests or urban areas.
        purpose:  The LiDAR-derived data were collected by the Maryland Department of Natural Resources in support of shore erosion studies along the shorelines of the Chesapeake Bay. It also supports the Federal Emergency Management Agency's specifications for mapping floodplains. These efforts required detailed elevation data and models, such as those available from LiDAR sensing. The data have also been made available to aid in other projects that require detailed surface, vegetation and/or structure elevations.
        credit:  The 2003 Maryland LIDAR data were collected for the Maryland Department of Natural Resources. Spatial Systems Associates, Inc. was the prime contractor for this project. It partnered with Airborne 1 Corporation, Computational Consulting Services, Inc., NXL Construction Services, Inc and Dewberry LLC. The following organizations participated with DNR and its vendor in funding the collecting and processing of the LIDAR data. They are: City of Salisbury, Salisbury University, University of Maryland, Dorchester County, Talbot County and the National Ocean and Atmospheric Administration's (NOAA) Coastal Services Center (CSC).
        status:  (MD_ProgressCode) completed
        pointOfContact:  (CI_ResponsibleParty)
            individualName:  Ken Miller
            organisationName:  Maryland Department of Natural Resources
            positionName:  Chief. Watershed Information Services Division
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  410-260-8751
                    facsimile:  410-260-8759
                address:  (CI_Address)
                    deliveryPoint:  Tawes State Office Building E-2 580 Taylor Avenue
                    city:  Annapolis
                    administrativeArea:  Maryland
                    postalCode:  21401-2397
                    country:  USA
                    electronicMailAddress:  kenmiller@dnr.state.md.us
                hoursOfService:  0800 - 1700 Monday to Friday (Eastern Time)
            role:  (CI_RoleCode) pointOfContact
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) notPlanned
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Bathymetry/Topography
            keyword:  mass points
            keyword:  LiDAR
            keyword:  lidar
            keyword:  elevation
            keyword:  DEM
            keyword:  elevation model
            keyword:  digital elevation model
            keyword:  surface model
            keyword:  gridded DEM
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  None
                date:
        descriptiveKeywords:  (MD_Keywords)
            keyword:  United States
            keyword:  Maryland
            keyword:  Worcester 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.
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  Lidar QA/QC Report
                date:
                citedResponsibleParty:  (CI_ResponsibleParty)
                    positionName:  Citation URL
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage:  ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/md/Worcester_QA_Report_2002.pdf
                            name:  Lidar QA/QC Report
                            description:
                            function:  (CI_OnLineFunctionCode) information
                    role:
            associationType:  (DS_AssociationTypeCode) crossReference
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) vector
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) elevation
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -75.569660
                eastBoundLongitude:  -75.023956
                southBoundLatitude:  37.979873
                northBoundLatitude:  38.468258
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  2002-09-01
                    endPosition:  2003-01-01
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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:  The horizontal coordinate values were designed to meet NSSDA accuracy for data at 1:2400 scale.
            result:
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy Report
            evaluationMethodDescription:  The RMSE value of 14.3 cm at the 95% confidence level was determined by an independent accuracy assessment conducted by Dewberry LLC according to the contract specifications. These specifications followed FEMA Appendix A guidelines regarding assessing vertical accuracy. For data accurate to within 18.5 cm RMSE, the guidelines recommended a minimum of 20 independent check points be located in each of 5 different land cover categories: Grass/Ground, High Grass/Crops, Brush/Low Trees, Forest, and Urban/Pavement. A total of 125 points were used for the assessments. These points were surveyed by a licensed land surveyor and provided a positional location and elevation with an accuracy that exceeded the predicted accuracy of the LIDAR data. The entire accuracy reports can be found at <http://dnrweb.dnr.state.md.us/gis/data/lidar>.
            result:
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy
            measureDescription:  The RMSE value is 14.3 cm. See the Vertical Positional Accuracy Report section for more information.
            result:  (DQ_QuantitativeResult)
                valueUnit:
                  BaseUnit:
                    identifier:  meters
                    unitsSystem:
                value:
                  Record:  14.3
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  Spatial Systems Associates performed various inspections of the data to ensure: that each file contained the points located within that tile; that tiles were completely filled; that the point density per tile was within expected ranges, and that the tiles were correctly named.
            result:
        report:  (DQ_ConceptualConsistency)
            measureDescription:  Computational Consulting Services, the LIDAR processing vendor used proprietary algorithms to remove features and artifacts in the First and Last Return data that did not reflect true ground elevation. Subsequent quality assurance testing by Dewberry determined that the data met FEMA and MD DNR specifications for both vertical accuracy and other consistencies with accepted standards. The QA report can be accessed at <http://dnrweb.dnr.state.md.us/gis/data/lidar>.
            result:
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  LIDAR Data Acquisition. Airborne 1, using an Optec 25 mHz system, flew the project area with the LIDAR sensor. A portion of the 2003 project area included data acquisition of portions of the LIDAR 2002 project area that had incomplete coverage. Where overlaps between the two series of data occurred, the newer data was used. No attempt at blending the two datasets was made to maintain the highest data integrity. In an effort to permit correlation of the point values with tidal gauge stations, the Airborne 1 was required to fly tidal shoreline areas during the low tide cycle (slack water - low tide - slack water) as predicted by local tide stations. The LIDAR sensor collected raw data that was referenced in UTM. The specifications called for data collection during leaf-off conditions, which generally run through early to mid April. However, due to late winter snow cover, windy flight conditions and other technical obstacles, data acquisitions continued into early June 2003. In addition, a small area in the north end of the project area was acquired in July. Anticipating the trouble with leaf density, Airborne 1 modified the flight parameters to increase the laser light penetration to the ground. The flight plan on this project included the following specifications to meet the project requirements: *Single pass density - 1.696 square meters per sample; *Average area sampling density -1.272 square meters per sample; *Swath width - 996.76 meters; *Flight altitude -1371 meters (4500 ft); *Flight line spacing - 498.38 meters w/50% overlap; *Scan frequency - 21 Hz; *Firing rate - 25 kHz; *Scan angle - 20 degrees; *Ground speed - 140 knots. When complete, the raw data was delivered to Spatial Systems.
                dateTime:
                  DateTime:  2004-01-20T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Ken Miller
                    organisationName:  Maryland Department of Natural Resources
                    positionName:  Director, Watershed Information Services
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  410-260-8751
                            facsimile:  410-260-8759
                        address:  (CI_Address)
                            deliveryPoint:  Tawes State Office Building E-2 580 Taylor Avenue
                            city:  Annapolis
                            administrativeArea:  Maryland
                            postalCode:  21401-2397
                            country:  USA
                            electronicMailAddress:  kenmiller@dnr.state.md.us
                        hoursOfService:  0800 - 1700 Monday to Friday (EST)
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  LIDAR Data Processing. Computational Consulting Systems. The First and Last Return data was delivered to CCS in large blocks of data. CCS processed the data using both the First and Last Returns, removed artifacts using automated and manual techniques, reprojected the data into the client-specified X,Y,Z text files using the 1200 meter x 1800 meter tiles, NAD 83 meters, NAVD 88 meters. CCS also generated the Intensity Imagery using the client-specified USGS 3.75' tiling scheme. The data products were delivered to SSA for quality assurance testing, formatting and final delivery.
                dateTime:
                  DateTime:  2004-01-20T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Ken Miller
                    organisationName:  Maryland Department of Natural Resources
                    positionName:  Director, Watershed Information Services
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  410-260-8751
                            facsimile:  410-260-8759
                        address:  (CI_Address)
                            deliveryPoint:  Tawes State Office Building E-2 580 Taylor Avenue
                            city:  Annapolis
                            administrativeArea:  Maryland
                            postalCode:  21401-2397
                            country:  USA
                            electronicMailAddress:  kenmiller@dnr.state.md.us
                        hoursOfService:  0800 - 1700 Monday to Friday (EST)
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  LIDAR Data Post Processing. Spatial Systems Associates. SSA digitized the shoreline from the Intensity Imagery for the purposes of delineating a shoreline. Any LIDAR points that fell seaward of this shoreline were assigned the value of zero (0). In addition to the shoreline, SSA delineated upland ponds using the same technique and assigned all LIDAR points that fell within the water area the value of the lowest observed point close to the shore. The observed elevation values were not lost - a fourth field in the data file was added for the assigned value. SSA also performed a variety of QA procedures to determine if the point density was within expected ranges; that each tile was completely filled; that all tiles were accounted for, and that the tiles were named in accordance with client specifications.
                dateTime:
                  DateTime:  2004-01-20T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Ken Miller
                    organisationName:  Maryland Department of Natural Resources
                    positionName:  Director, Watershed Information Services
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  410-260-8751
                            facsimile:  410-260-8759
                        address:  (CI_Address)
                            deliveryPoint:  Tawes State Office Building E-2 580 Taylor Avenue
                            city:  Annapolis
                            administrativeArea:  Maryland
                            postalCode:  21401-2397
                            country:  USA
                            electronicMailAddress:  kenmiller@dnr.state.md.us
                        hoursOfService:  0800 - 1700 Monday to Friday (EST)
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  LIDAR Data Check Point Surveys. NXL Construction Services. NXL was contracted to acquire the check-points in the 5 different land cover classes. SSA provided NXL with maps of each area where a check-point was to be located. The points were scattered throughout the project area. NXL was permitted the latitude to select the exact location based on field conditions, provided the points were generally within a 1 mile radius of the chosen location and that the land cover class was the same as the one specified. The land cover classes were: Grass/Ground, High Grass/Crops, Brush/Low Trees, Forest, and Urban/Pavement.
                dateTime:
                  DateTime:  2004-01-20T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Ken Miller
                    organisationName:  Maryland Department of Natural Resources
                    positionName:  Director, Watershed Information Services
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  410-260-8751
                            facsimile:  410-260-8759
                        address:  (CI_Address)
                            deliveryPoint:  Tawes State Office Building E-2 580 Taylor Avenue
                            city:  Annapolis
                            administrativeArea:  Maryland
                            postalCode:  21401-2397
                            country:  USA
                            electronicMailAddress:  kenmiller@dnr.state.md.us
                        hoursOfService:  0800 - 1700 Monday to Friday (EST)
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  LIDAR Data Quailty Assurance. Dewberry LLC was provided with the check-point and LIDAR Bare Earth Mass Points data to perform their independent quality assurance work. They performed detailed analyses to determine if the vertical accuracy with within specifications and examined the data for flight, data collection and processing inconsistencies. Neither the flight vendor (Airborne 1) nor the processing vendor (CCS) was given access to the check-point data. The entire accuracy report can be found at <http://dnrweb.dnr.state.md.us/gis/data/lidar>.
                dateTime:
                  DateTime:  2004-01-20T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Ken Miller
                    organisationName:  Maryland Department of Natural Resources
                    positionName:  Director, Watershed Information Services
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  410-260-8751
                            facsimile:  410-260-8759
                        address:  (CI_Address)
                            deliveryPoint:  Tawes State Office Building E-2 580 Taylor Avenue
                            city:  Annapolis
                            administrativeArea:  Maryland
                            postalCode:  21401-2397
                            country:  USA
                            electronicMailAddress:  kenmiller@dnr.state.md.us
                        hoursOfService:  0800 - 1700 Monday to Friday (EST)
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  The NOAA Coastal Services Center (CSC) received ASCII files containing the bared-earth elevation and intensity data from Maryland Department of Natural Resources. CSC performed the following processing on the data to make it available within the Lidar Data Retrieval Tool (LDART): 1. The data were projected from Maryland State Plane coordinates to geographic decimal degrees using the General Cartographic Transformation Package. 2. The lat, lon, MODZVAL and intensity values where extracted from the ascii files and converted to the LDART binary format. 3. The data were converted to xyz text files
                dateTime:
                  DateTime:  2004-05-28T00:00:00
                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:  2006-01-03T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Pamela Grothe
                    organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                    contactInfo:  (CI_Contact)
                        contactInstructions:  Contact Data Center
                    role:  (CI_RoleCode) processor
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        dateOfNextUpdate:  2014-05-07
        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 2013-05-07T15:16:33.973-06:00
        maintenanceNote:  Last Metadata Review Date: 2011-11-19