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2005 St. Johns River Water Management District (SJRWMD) Lidar: Western Seminole County, Florida

spatialRepresentationInfo
referenceSystemInfo
referenceSystemInfo
identificationInfo
distributionInfo
dataQualityInfo
metadataMaintenance

 (MI_Metadata)
    fileIdentifier:  gov.noaa.csc.maps:2005_FL_Seminole_m101
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  Mike Sutherland(author) (CI_ResponsibleParty)
        organisationName:
        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:  2005 St. Johns River Water Management District (SJRWMD) Lidar: Western Seminole County, Florida
            date:  (CI_Date)
                date:  2005-08-01
                dateType:  (CI_DateTypeCode) publication
            citedResponsibleParty:  NOAA CSC (originator)
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  St. Johns River Water Management District (SJRWMD)
                role:  (CI_RoleCode) originator
            citedResponsibleParty:  NOAA CSC (publisher) (CI_ResponsibleParty)
                organisationName:
                role:  (CI_RoleCode) publisher
            presentationForm:  (CI_PresentationFormCode) imageDigital
        abstract:  This data set consists of a bare earth data set of 498 files covering a geographic area of 175 square miles in western Seminole County, Florida and includes small portions of adjacent Orange and Lake Counties. The lidar data was collected June 5-7, 2005. This data set seems to contain only model keypoints (points that are a thinned data set that is intended to remove extraneous data such as trees and points that are deemed redundant to the final bare earth product) that are classified as ground points. As a result, there are a lower number of points than in a full mass point lidar data set; and it is recommended that the data be downloaded as points and used with a TIN (Triangulated Irregular Network) or similar algorithm to produce a bare earth surface.
        purpose:  This data set depicts information about geographic features within the project area and is to be used for purposes defined by the SJRWMD.
        credit:  St. Johns River Water Management District (SJRWMD)
        status:  (MD_ProgressCode) completed
        pointOfContact:  (CI_ResponsibleParty)
            individualName:  Paul Finer
            organisationName:  St. Johns River Water Management District (SJRWMD)
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  386-329-4542
                address:  (CI_Address)
                    deliveryPoint:  4049 Reid Street
                    city:  Palatka
                    administrativeArea:  FL
                    postalCode:  32177
                    country:  USA
                    electronicMailAddress:  gis_support@sjrwmd.com
            role:  (CI_RoleCode) pointOfContact
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) unknown
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Bathymetry/Topography
            keyword:  Lidar Mapping
            keyword:  Topographic
            keyword:  Bare earth
            keyword:  Intensity image
            keyword:  LAS
            keyword:  ASCII
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  None
                date:
        descriptiveKeywords:  (MD_Keywords)
            keyword:  United States
            keyword:  Florida
            keyword:  Western Seminole County
            keyword:  Portions of Orange County
            keyword:  Portions of Lake County
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  None
                date:
        resourceConstraints:  Lidar Use Limitation
        resourceConstraints:  NOAA Legal Statement
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  Lidar Final Reports
                date:
                citedResponsibleParty:  (CI_ResponsibleParty)
                    positionName:  Citation URL
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage:  ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/seminole
                            name:  Lidar Final Reports
                            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:  -81.486743
                eastBoundLongitude:  -81.240467
                southBoundLatitude:  28.639242
                northBoundLatitude:  28.875263
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  2005-06-05
                    endPosition:  2005-06-07
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  LAZ
            version:
        distributor:  (MD_Distributor)
            distributorContact:  NOAA CSC(distributor) (CI_ResponsibleParty)
                organisationName:
                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 LiDAR data was compiled to meet a 7.6-foot horizontal accuracy at 95-percent confidence level. Due to the coarse nature of the LiDAR data no comparisons could be made between the intensity returns and the horizontal positions of field surveyed points. Project planning for high resolution LiDAR data and proven system performance were used to determine the expected horizontal accuracy. Final map data are referenced to the Florida High Accuracy Reference Network (HARN) adjustment for the North American Datum of 1983. Projection was Universal Transverse Mercator (UTM), Zone 17, units were meters.
            result:
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy Report
            evaluationMethodDescription:  The LiDAR data was tested for a fundamental vertical accuracy and a supplemental vertical accuracy. The fundamental accuracy was tested for points that fall in open areas, not obscured by vegetation, having a normalized distribution. The supplemental accuracy was tested for points that fall in areas of vegetation, where data does not follow a normalized distribution. The fundamental vertical accuracy was tested 0.56-foot vertical accuracy at 95 percent confidence level using RMSE procedures with no outliers. The vertical root mean square error (RMSEz) was tested at 0.29-foot. The fundamental vertical accuracy meets the National Standards for Spatial Data Accuracy (NSSDA) for one-foot contours. These results were determined by comparing thirty-nine (39) field surveyed points obtained on hard surface and open areas with the Bald Earth Last Return LiDAR data. Refer to file 05680_fundamental_vert_acc.xls to view the results including summary statistics, normalized distribution, and a histogram. The supplemental vertical accuracy was tested 1.29-feet vertical accuracy at 95 percent confidence level, determined by the 95th percentile method. Point M3 having a -1.94 feet difference was determined to be an outlier. These results were determined by comparing forty (40) field-surveyed points obtained in brush and forested areas with the Bald Earth Last Return LiDAR data. Refer to file 05680_supplemental_vert_acc.xls to view the results including summary statistics, normalized distribution, and a histogram. Another analysis of the data will be made after the manual edit of the LiDAR data that may change these results. Ground control surveys were conducted under the supervision of a licensed Florida Surveyor and Mapper in accordance with Florida State Statutes. Horizontal values were referenced to the Florida High Accuracy Reference Network (HARN) adjustment for the North American Datum of 1983. Projection was Universal Transverse Mercator (UTM), Zone 17, units were meters.
            result:
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  Not provided
            result:
        report:  (DQ_ConceptualConsistency)
            measureDescription:  Not provided
            result:
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  LiDAR Data Acquisition -- The Lidar data was collected utilizing an Optech ALTM (Airborne Laser Terrain Mapper) 2025 in a Cessna 208 Grand Caravan aircraft on June 5, 2005 between 0930 and 1150 hours at an altitude of 3000' AGL. Data was also collected starting June 6, 2005 at 1830 hours and ending on June 7 at 0900 hours. The configuration used a scan half-angle of +/-17 degrees, a laser pulse repetition frequency of 25 kilohertz, and a flying speed of approximately 80 knots. Airborne GPS using a Novatel dual frequency GPS receiver was accomplished during the flight session to provide positional information for the Lidar platform. Simultaneous acquisition of ground base station data was performed using a Novatel and Leica SR9500 dual frequency receivers for the June 5, 2005 session. Two Leica SR9500 dual frequency GPS receivers were used for the second session on June 6-7, 2005. Each station remained in operation for the duration of the project flight. The ground base stations were set up over National Geodetic Survey (NGS) monuments AK0205 (Designation Number I4 71 A14) and AK7045 (Designation Number GIS 0472 CAS 1). Positional information on these monuments was obtained from Data Sheets retrieved from the NGS website (http://www.ngs.noaa.gov). The GPS data from the ground base stations and the airborne platform were processed together using Applanix POSPac 4.2 software module POSGPS. All adjustments were referenced to WGS84. The Inertial Measurement Unit (IMU) solution was accomplished to provide information regarding the attitude of the Lidar platform using the Applanix POSPac 4.2 software module POSProc. This solution was integrated with the Airborne GPS and adjusted using a Kalman filter in a forward/reverse solution to provide a Smoothed Best Estimate of Trajectory (SBET). Laser ranging from the airborne platform was accomplished using Realm 3.2 processing software to provide XYZ ground positions for each point. The final horizontal values were output in Universal Transverse Mercator (UTM), Zone 17, units are meters. The horizontal datum conforms to the current Florida High Accuracy Reference Network (HARN) adjustment for the North American Datum of 1983. The Vertical Datum is the North American Vertical Datum of 1988 (NAVD88), units are feet.
                dateTime:
                  DateTime:  2005-06-07T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Edward C. Beute, PSM, CP
                    organisationName:  Aerial Cartographics of America, Inc.
                    positionName:  LiDAR Operations
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  407-851-7880
                            facsimile:  407-855-8250
                        address:  (CI_Address)
                            deliveryPoint:  1722 W. Oak Ridge Road
                            city:  Orlando
                            administrativeArea:  FL
                            postalCode:  32809
                            country:  USA
                            electronicMailAddress:  e_beute@aca-net.com
                        contactInstructions:  x131
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  Classification of the laser data to extract above ground features such as buildings and vegetation leaving only bare earth ground points was performed using Terrasolid Ltd. Terrascan software (Version 003.003). The data was separated into five (5) separate sets 502 files representing Bald Earth First Pulse, Bald Earth Last Pulse, Extracted Features First Pulse, Extracted Features Last Pulse, and LAS format. The Bald Earth Last Pulse best represents the natural ground and is the file upon which all accuracy statements are based. The Extracted Features First Pulse best represents the canopy data that includes all features determined to be above the natural ground.
                dateTime:
                  DateTime:  2005-07-01T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Edward C. Beute, PSM, CP
                    organisationName:  Aerial Cartographics of America, Inc.
                    positionName:  LiDAR Operations
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  407-851-7880
                            facsimile:  407-855-8250
                        address:  (CI_Address)
                            deliveryPoint:  1722 W. Oak Ridge Road
                            city:  Orlando
                            administrativeArea:  FL
                            postalCode:  32809
                            country:  USA
                            electronicMailAddress:  e_beute@aca-net.com
                        contactInstructions:  x131
                    role:  (CI_RoleCode) processor
            processStep:  (LE_ProcessStep)
                description:  The NOAA Coastal Services Center (CSC) received the bare earth files in ASCII format. The data were Universal Transverse Mercator (UTM), Zone 17, units in meters, NAVD88 vertical datum and the vertical units of measure were feet. CSC performed the following processing to the ASCII data to make it available within Digital Coast: 1. The data were converted from UTM coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid 03. 3. The LAS data were sorted by latitude and the headers were updated.
                dateTime:
                  DateTime:  2008-11-14T00:00:00
                processor:  NOAA CSC (processor) (CI_ResponsibleParty)
                    organisationName:
                    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:  2009-07-20T00:00:00
                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 2013-05-07T15:17:07.951-06:00
        maintenanceNote:  Last Metadata Review Date: 2011-11-19