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Metadata Identifier: gov.noaa.csc.maps:ak2012_whitter_m2580

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 2012 Alaska Division of Geological and Geophysical Surveys (DGGS) Lidar: Whittier, Alaska In support of geologic mapping and hazards evaluation in and near Whittier, Alaska, the Division of Geological and Geophysical Surveys (DGGS) acquired, and is making publicly available, lidar (light detection and ranging) data for an area along Passage Canal, Portage Lake, and Portage Glacier Highway. The lidar data, acquired between 21 - Oct 25 2013, was processed by Watershed Sciences, Inc. (WSI) and consists of continuous coverage encompassing an area extending from Portage Lake eastward to Logging Company Bay in Passage Canal in the Seward D-4, D-5, and D-6 1:63,360-scale quadrangles. Lidar data collected below 1,600 ft (488 m) elevation have a minimum average pulse density of 8 pulses/square meter; above 1,600 ft (488 m) data were collected with an average pulse density of at least 4 pulses/square meter. Following lidar data collection and processing by WSI and their survey subcontractor, McClintock Land Associates, WSI submitted the data to the State of Oregon Department of Geology and Mineral Industries (DOGAMI) for independent quality control analysis. After addressing any concerns from DOGAMI, WSI submitted the revised dataset to DGGS along with a technical report describing details about the lidar acquisition, accuracy, and quality. DOGAMI also provided a separate report summarizing their methodologies and the results of quality control checks. The following data classifications are available for download from the NOAA Digital Coast: 1 (Unclassified) 2 (Ground) 3 (Low Vegetation) 4 (Medium Vegetation) 6 (Buildings) 7 (Low Point/Noise) 9 (Water Surface) 10 (Ignored Ground - Ground points within 1 m of breaklines) 14 (Withheld - Points that have intensity values of 0 or 255) 15 (Mobile - Temporary Placed Structures (cars, boats, docks, buoys)) 16 (Utilities - Man made non-habitable structures (fences, power lines))
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 2012 Alaska Division of Geological and Geophysical Surveys (DGGS) Lidar: Whittier, Alaska
    2013-01-01
1 Engineering Geology FY13 project descriptions
    2013-01-01
1 Lidar Delivery Report
    1 Lidar QC Report
      2 None
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        CI_Series

        Count Component Name Issue Identification Page
        1 Annual Report AR 2012-C
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        CI_ResponsibleParty

        Count Component Individual Organization Position Email Role Linkage
        1 Mike Sutherland(author) author
        1 NOAA CSC (publisher) publisher
        2 Citation URL ftp://csc.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/2580/supplemental/rdf2013_003_qc_report.pdf
        1 NOAA CSC(distributor) distributor
        2 NOAA CSC (processor) processor
        1 Alaska Division of Geological and Geophysical Surveys publisher
        1 Alaska Division of Geological and Geophysical Surveys (DGGS) originator
        1 DGGS Staff originator
        1 James Weakland Alaska Division of Geological and Geophysical Surveys GIS Analyst dggsgis@alaska.gov pointOfContact
        Unresolved Xlinks
        Mike Sutherland(author) at: /gmi:MI_Metadata/gmd:contact[1]
        NOAA CSC (originator) at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:citation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[1]
        NOAA CSC (publisher) at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:citation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[3]
        NOAA CSC(distributor) at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:distributor[1]/gmd:MD_Distributor[1]/gmd:distributorContact[1]
        Mike Sutherland at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:distributor[2]/gmd:MD_Distributor[1]/gmd:distributorContact[1]
        NOAA CSC (processor) at: /gmi:MI_Metadata/gmd:dataQualityInfo[1]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:processStep[6]/gmi:LE_ProcessStep[1]/gmd:processor[1]
        Mike Sutherland (processor) at: /gmi:MI_Metadata/gmd:dataQualityInfo[1]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:processStep[7]/gmi:LE_ProcessStep[1]/gmd:processor[1]
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        CI_OnlineResource

        Count Component Linkage Name Description Function
        1 ftp://csc.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/2580/supplemental/rdf2013_003_delivery_report.pdf Lidar Delivery Report information
        1 ftp://csc.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/2580/supplemental/rdf2013_003_qc_report.pdf Lidar QC Report information
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        MD_Identifier or RS_Identifier

        Count Component Code
        1 Leica ALS50
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        EX_Extent

        Bounding Box Temporal Extent
        Count Component Description West East North South Start End
        1 -148.883498 -148.407257 60.879156 60.757840 2012-10-21 2012-10-25
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        EX_GeographicBoundingBox

        Count Component West East North South
        1 -148.883498 -148.407257 60.879156 60.757840
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        EX_TemporalExtent

        Count Component Start End
        1 2012-10-21 2012-10-25
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        MD_Format

        Count Component Name Version specification
        1 LAZ
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        MD_Medium

        none found
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        MD_Constraints

        Unresolved Xlinks
        Lidar Use Limitation at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:resourceConstraints[1]
        NOAA Legal Statement at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:resourceConstraints[2]
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        MD_ReferenceSystem

        Unresolved Xlinks
        NAD83 at: /gmi:MI_Metadata/gmd:referenceSystemInfo[1]
        Ellipsoid at: /gmi:MI_Metadata/gmd:referenceSystemInfo[2]
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        MD_GridSpatialRepresentation

        none found
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        MD_Georeferenceable or MI_Georeferenceable

        none found
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        MD_Georectified or MI_Georectified

        none found
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        MD_Dimension

        none found
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        MD_CoverageDescription or MI_CoverageDescription

        none found
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        MD_Band or MI_Band

        none found
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        MI_RangeElementDescription

        none found
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        MD_AggregateInformation

        Count Component Title Code Association Type Code
        1 Engineering Geology FY13 project descriptions crossReference
        1 Lidar Delivery Report crossReference
        1 Lidar QC Report crossReference
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        LE_Source or LI_Source

        none found
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        LE_ProcessStep or LI_ProcessStep

        Count Component DateTime Description
        1 2012-01-01T00:00:00 Data acquisition and processing - This lidar dataset was collected and processed by WSI and their survey subcontractor, McClintock Land Associates (October 21-25, 2012). WSI has provided a delivery report which outlines in detail their data acquisition procedures, processing methods, and results of all accuracy assessments. The delivery report is available on the citation page for this publication.
        1 2012-01-01T00:00:00 Quality control - WSI submitted the data to the State of Oregon Department of Geology and Mineral Industries (DOGAMI) for independent quality control analysis. After addressing any concerns from DOGAMI, WSI submitted the revised data set to DGGS along with a technical report describing details about the lidar acquisition, accuracy, and quality. DOGAMI also provided a separate report summarizing their methodologies and the results of quality control checks.
        1 2012-01-01T00:00:00 Point-cloud data - all returns - classified - Lidar data points were classified (ASPRS standard) through automated point processing algorithms and manual inspection.
        1 2012-01-01T00:00:00 Point-cloud data - ground returns - classified - Lidar data points that were classified as "ground" were extracted to create the ground point data file.
        1 2012-01-01T00:00:00 Lidar intensity images - The lidar intensity values of ground points were symbolized (0-255 grayscale) according to their relative intensity values. The resultant image was exported to a raster format.
        1 2013-10-01T00:00:00 The NOAA Coastal Services Center (CSC) received the files in las format. The files contained lidar elevation and intensity measurements. The data were in UTM Zone 6 (NAD83) coordinates and elevations were in meters, referenced to the NAVD88 (Geoid09) vertical datum. CSC performed the following processing for data storage and Digital Coast provisioning purposes: 1. The data were filtered for elevation outliers. 2. The data that were classified as 11, 12, and 13 were reclassified to classes 14, 15, and 16, respectively. The following data classifications are available for download: 1 (Unclassified), 2 (Ground), 3 (Low Vegetation), 4 (Medium Vegetation), 6 (Buildings), 7 (Low Point/Noise), 9 (Water Surface), 10 (Ignored Ground - Ground points within 1 m of breaklines), 14 (Withheld - Points that have intensity values of 0 or 255), 15 (Mobile - Temporary Places Structures (cars, boats, docks, buoys)), 16 (Utilities - Man made non-habitable structures (fences, power lines)) 3. The data were converted from GPS week time to Adjusted GPS time. 4. The data were converted from UTM Zone 6 (NAD83) coordinates to geographic coordinates. 5. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid09. 6. The data were converted to LAZ format.
        NOAA CSC (processor) at Xpath: /gmi:MI_Metadata/gmd:dataQualityInfo[1]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:processStep[6]/gmi:LE_ProcessStep[1]/gmd:processor[1]
        1 2013-11-19T00:00:00 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.
        Mike Sutherland (processor) at Xpath: /gmi:MI_Metadata/gmd:dataQualityInfo[1]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:processStep[7]/gmi:LE_ProcessStep[1]/gmd:processor[1]
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        MI_Operation

        none found
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        MI_Platform

        none found
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        MI_Instrument

        Count Component Code Type Description
        1 Leica ALS50 Light Detection and Ranging
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