| 2019 FEMA Lidar: 19 County MI | referenceSystemInfo|
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| (MI_Metadata) fileIdentifier: gov.noaa.nmfs.inport:63421 language: LanguageCode: eng characterSet: (MD_CharacterSetCode) UTF8 hierarchyLevel: (MD_ScopeCode) dataset hierarchyLevelName: Elevation contact: (CI_ResponsibleParty) organisationName: OCM Partners contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (missing) address: (CI_Address) role: (CI_RoleCode) resourceProvider contact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact dateStamp: DateTime: 2023-02-21T18:41:15 metadataStandardName: ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data metadataStandardVersion: ISO 19115-2:2009(E) return to top referenceSystemInfo: (MD_ReferenceSystem) referenceSystemIdentifier: (RS_Identifier) authority: (CI_Citation) title: NAD83(2011) date: (CI_Date) date: 2008-11-12 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: European Petroleum Survey Group contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://apps.epsg.org/api/v1/CoordRefSystem/6318/export/?format=gml role: (missing) code: urn:ogc:def:crs:EPSG:6318 version: 6.18.3 return to top referenceSystemInfo: (MD_ReferenceSystem) referenceSystemIdentifier: (RS_Identifier) authority: (CI_Citation) title: North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters alternateTitle: North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters citedResponsibleParty: (CI_ResponsibleParty) organisationName: (withheld) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://apps.epsg.org/api/v1/VerticalCoordRefSystem/5703/?api_key=gml name: North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters 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: https://www.epsg.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 VerticalCS: metaDataProperty: CommonMetaData: type: vertical informationSource: OGP revisionDate: 2006-11-28 isDeprecated: false identifier: urn:ogc:def:cs:EPSG::6499 name: Vertical CS. Axis: height (H). Orientation: up. UoM: meter. remarks: Used in vertical coordinate reference systems. axis: CoordinateSystemAxis: descriptionReference: urn:ogc:def:axis-name:EPSG::9904 identifier: urn:ogc:def:axis:EPSG::114 axisAbbrev: H axisDirection: up code: urn:ogc:def:crs:EPSG::5703 return to top spatialRepresentationInfo: return to top identificationInfo: (MD_DataIdentification) citation: (CI_Citation) title: 2019 FEMA Lidar: 19 County MI date: (CI_Date) date: 2019-10-23 dateType: (CI_DateTypeCode) publication identifier: (MD_Identifier) authority: (CI_Citation) title: NOAA/NMFS/EDM date: (inapplicable) code: Anchor: InPort Catalog ID 63421 citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.fisheries.noaa.gov/inport/item/63421 protocol: WWW:LINK-1.0-http--link name: Full Metadata Record description: View the complete metadata record on InPort for more information about this dataset. function: (CI_OnLineFunctionCode) information role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/metadata/MI_FEMA_2019_C19/ protocol: WWW:LINK-1.0-http--link name: Hydro Breaklines description: Hydro breaklines are available by county from the USGS rockyweb https site. function: (CI_OnLineFunctionCode) download role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/metadata/MI_FEMA_2019_C19/ protocol: WWW:LINK-1.0-http--link name: Lidar Reports description: Lidar reports are available by county from the USGS rockyweb https site. function: (CI_OnLineFunctionCode) download role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov/dataviewer/ protocol: WWW:LINK-1.0-http--link name: NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) description: The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. function: (CI_OnLineFunctionCode) download role: (inapplicable) presentationForm: (unknown) abstract: This metadata record describes the Classified Point Cloud for the 2019 19 County FEMA Michigan LiDAR project. The data collection was funded by NRCS and USGS and the State of Michigan was in charge of collection. Nineteen counties (some with only partial coverage) were collected in total. Product: These lidar data are processed Classified LAS 1.4 files, formatted to individual 2500 ft x 2500 ft tiles; used to create intensity images, 3D breaklines and hydro-flattened DEMs as necessary. Dataset Description: The FEMA 19 County, Michigan 2019 Lidar project called for the Planning, Acquisition, processing and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.7 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.3. The data was developed based on a horizontal projection/datum of NAD83 (2011), State Plane Coordinate System, international feet and vertical datum of NAVD88 (GEOID12B), international feet. Lidar data was delivered as processed Classified LAS 1.4 files, formatted to individual 2500 ft x 2500 ft tiles, as tiled Intensity Imagery, and as tiled bare earth DEMs; all tiled to the same 2500 ft x 2500 ft schema. Ground Conditions: Lidar was collected in spring 2019, while no snow was on the ground and rivers were at or below normal levels. In order to post process the lidar data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Sanborn Map Company, Inc. established ground control points that were used to calibrate the lidar to known ground locations established throughout the project area. Additional independent accuracy check points in Open Terrain/Bare-Earth and Urban landcovers, in Grass, Brush and Trees categories were used to assess the vertical accuracy of the data. These check points were not used to calibrate or post process the data. The NOAA Office for Coastal Management (OCM) downloaded laz files from this USGS site and processed the data to the Data Access Viewer (DAV) and to https: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/MI_FEMA_2019_C19/ Counties included: Alcona, Alpena, Antrim, Cheboygan, Chippewa, Crawford, Dickinson, Gogebic, Houghton, Iron, Kalkaska, Keweenaw, Luce, Menominee, Montmorency, Ontonagon, Oscoda, Ostego, and Schoolcraft. This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data. purpose: To acquire detailed surface elevation data for use in conservation planning, design, research, floodplain mapping, dam safety assessments and elevation modeling, etc. Classified LAS files are used to show the manually reviewed bare earth surface. This allows the user to create Intensity Images, Breaklines and Raster DEM. The purpose of these lidar data was to produce high accuracy 3D hydro-flattened Digital Elevation Model (DEM) with a 2 ft cell size. These lidar point cloud data were used to create intensity images, 3D breaklines, and hydro-flattened DEMs as necessary. credit: FEMA, USGS, Sanborn Map Company, Inc. The custom download may be cited as National Oceanic and Atmospheric Administration (NOAA) Digital Coast Data Access Viewer. Charleston, SC: NOAA Office for Coastal Management. Accessed Aug 01, 2023 at https://coast.noaa.gov/dataviewer. status: (MD_ProgressCode) completed pointOfContact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) pointOfContact pointOfContact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian resourceMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) notPlanned descriptiveKeywords: (MD_Keywords) keyword: EARTH SCIENCE keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION keyword: EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Science Keywords date: (missing) edition: 12.3 descriptiveKeywords: (MD_Keywords) keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MICHIGAN keyword: VERTICAL LOCATION > LAND SURFACE type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Location Keywords date: (missing) edition: 12.3 descriptiveKeywords: (MD_Keywords) keyword: LIDAR > Light Detection and Ranging type: (MD_KeywordTypeCode) instrument thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Instrument Keywords date: (missing) edition: 14.9 descriptiveKeywords: (MD_Keywords) keyword: Airplane > Airplane type: (MD_KeywordTypeCode) platform thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Platform Keywords date: (missing) edition: 14.9 descriptiveKeywords: (MD_Keywords) keyword: Continent > North America > United States Of America > Michigan > Alcona County keyword: Continent > North America > United States Of America > Michigan > Alpena County keyword: Continent > North America > United States Of America > Michigan > Antrim County keyword: Continent > North America > United States Of America > Michigan > Cheboygan County keyword: Continent > North America > United States Of America > Michigan > Chippewa County keyword: Continent > North America > United States Of America > Michigan > Crawford County keyword: Continent > North America > United States Of America > Michigan > Dickinson County keyword: Continent > North America > United States Of America > Michigan > Houghton County keyword: Continent > North America > United States Of America > Michigan > Iron County keyword: Continent > North America > United States Of America > Michigan > Kalkaska County keyword: Continent > North America > United States Of America > Michigan > Keweenaw County keyword: Continent > North America > United States Of America > Michigan > Luce County keyword: Continent > North America > United States Of America > Michigan > Menominee County keyword: Continent > North America > United States Of America > Michigan > Montmorency County keyword: Continent > North America > United States Of America > Michigan > Ontonagon County keyword: Continent > North America > United States Of America > Michigan > Oscoda County keyword: Continent > North America > United States Of America > Michigan > Ostego County keyword: Continent > North America > United States Of America > Michigan > Schoolcraft County keyword: Continent > North America > United States Of America > Michigan >Gogebic County type: (MD_KeywordTypeCode) place descriptiveKeywords: (MD_Keywords) keyword: Lidar - partner (no harvest) type: (MD_KeywordTypeCode) project thesaurusName: (CI_Citation) title: InPort date: (inapplicable) resourceConstraints: (MD_LegalConstraints) useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Cite As: OCM Partners, [Date of Access]: 2019 FEMA Lidar: 19 County MI [Data Date Range], https://www.fisheries.noaa.gov/inport/item/63421. resourceConstraints: (MD_Constraints) useLimitation: NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. resourceConstraints: (MD_LegalConstraints) accessConstraints: (MD_RestrictionCode) otherRestrictions useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Access Constraints: None | Use Constraints: 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. | Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners. resourceConstraints: (MD_SecurityConstraints) classification: (MD_ClassificationCode) unclassified classificationSystem: (missing) handlingDescription: (missing) aggregationInfo: (MD_AggregateInformation) aggregateDataSetName: (CI_Citation) title: NOAA Data Management Plan (DMP) date: (unknown) identifier: (MD_Identifier) authority: (CI_Citation) title: NOAA/NMFS/EDM date: (inapplicable) code: 63421 citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/63421.pdf protocol: WWW:LINK-1.0-http--link name: NOAA Data Management Plan (DMP) description: NOAA Data Management Plan for this record on InPort. function: (CI_OnLineFunctionCode) information role: (inapplicable) associationType: (DS_AssociationTypeCode) crossReference spatialRepresentationType: (MD_SpatialRepresentationTypeCode) vector spatialResolution: (MD_Resolution) distance: Distance: .7 language: eng; US topicCategory: (MD_TopicCategoryCode) elevation extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -90.427196 eastBoundLongitude: -83.190516 southBoundLatitude: 44.502672 northBoundLatitude: 47.480399 temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: | Currentness: Ground Condition beginPosition: 2019-05-17 endPosition: 2019-10-23 temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: Dates of collection for Luce and Schoolcraft counties. | Currentness: Ground Condition beginPosition: 2020-05-13 endPosition: 2020-05-21 temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: Dates of collection for Alpena and Montmorency counties. | Currentness: Ground Condition beginPosition: 2020-04-24 endPosition: 2020-04-28 temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: Dates of collection for Antrim and Ostego counties. | Currentness: Ground Condition beginPosition: 2019-05-07 endPosition: 2020-04-27 temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: Dates of collection for Dickinson, Iron, and Menominee counties. | Currentness: Ground Condition beginPosition: 2020-05-02 endPosition: 2020-06-28 temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: Dates of collection for Houghton, Keweenaw, and Ontonagon Counties | Currentness: Ground Condition beginPosition: 2019-05-26 endPosition: 2019-06-08 temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: Additional dates of collection for Houghton, Keweenaw, and Ontonagon Counties | Currentness: Ground Condition beginPosition: 2020-05-20 endPosition: 2020-05-21 supplementalInformation: CONTRACTOR: Sanborn Map Company The following are the USGS lidar fields in JSON: { "ldrinfo" : { "ldrspec" : "USGS Lidar Base Specification v1.3", "ldrsens" : "Leica ALS80-HP", "ldrmaxnr" : "4", "ldrnps" : "0.7", "ldrdens" : "2.0", "ldranps" : "0.70", "ldradens" : "2.0", "ldrfltht" : "2099", "ldrfltsp" : "130", "ldrscana" : "45", "ldrscanr" : "42.1", "ldrpulsr" : "255", "ldrpulsd" : "4", "ldrpulsw" : "0.48", "ldrwavel" : "1064", "ldrmpia" : "1", "ldrbmdiv" : "0.25", "ldrswatw" : "1739", "ldrswato" : "20", "ldrgeoid" : "National Geodetic Survey (NGS) Geoid12B" }, "ldraccur" : { "ldrchacc" : "0", "rawnva" : "0", "rawnvan" : "0", "clsnva" : "0", "clsnvan" : "0", "clsvva" : "0", "clsvvan" : "0" }, "lasinfo" : { "lasver" : "1.4", "lasprf" : "6", "laswheld" : "Withheld (ignore) points were identified in these files using the standard LAS Withheld bit.", "lasolap" : "Swath "overage" points were identified in these files using the standard LAS overlap bit.", "lasintr" : "16", "lasclass" : { "clascode" : "1", "clasitem" : "Processed, but Unclassified" }, "lasclass" : { "clascode" : "2", "clasitem" : "Bare Earth Ground" }, "lasclass" : { "clascode" : "7", "clasitem" : "Low Noise" }, "lasclass" : { "clascode" : "9", "clasitem" : "Water" }, "lasclass" : { "clascode" : "20", "clasitem" : "Ignored Ground" }, "lasclass" : { "clascode" : "17", "clasitem" : "Bridge Decks" }, "lasclass" : { "clascode" : "18", "clasitem" : "High Noise" } }} return to top distributionInfo: (MD_Distribution) distributionFormat: (MD_Format) name: Zip version: (missing) fileDecompressionTechnique: Zip distributionFormat: (MD_Format) name: LAZ version: (missing) distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) organisationName: U.S. Geological Survey contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (missing) address: (CI_Address) deliveryPoint: 12201 Sunrise Valley Drive city: Reston administrativeArea: VA postalCode: 20191 country: (missing) electronicMailAddress: (missing) onlineResource: (CI_OnlineResource) linkage: https://usgs.gov protocol: WWW:LINK-1.0-http--link name: USGS Home description: Home page for USGS function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) distributor distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) organisationName: NOAA Office for Coastal Management contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (843) 740-1202 address: (CI_Address) deliveryPoint: 2234 South Hobson Ave city: Charleston administrativeArea: SC postalCode: 29405-2413 country: (missing) electronicMailAddress: coastal.info@noaa.gov onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov protocol: WWW:LINK-1.0-http--link name: NOAA Office for Coastal Management Website description: NOAA Office for Coastal Management Home Page function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) distributor transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9231/details/9231 protocol: WWW:LINK-1.0-http--link name: Customized Download description: Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. Change to an orthometric vertical datum is one of the many options. function: (CI_OnLineFunctionCode) download transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/MI_FEMA_2019_C19/ protocol: WWW:LINK-1.0-http--link name: Bulk Download description: Bulk download of data files in LAZ format, based on a horizontal datum/projection of NAD83 (2011) State Plane Michigan Central (FIPS 2112) and North (FIPS 2111) International Feet, and a vertical datum of NAVD88 (GEOID12B) in International feet. This url links to the USGS copy of the files, from which the Entwine Point Tile files originated. These have not been reviewed by OCM and the link is provided here for convenience. function: (CI_OnLineFunctionCode) download return to top dataQualityInfo: (DQ_DataQuality) scope: (DQ_Scope) level: (MD_ScopeCode) dataset report: (DQ_AbsoluteExternalPositionalAccuracy) nameOfMeasure: Vertical Positional Accuracy evaluationMethodDescription: This data set was produced to meet ASPRS Positional Accuracy Standard for Digital Geospatial Data (2014) for a 10-cm RMSEz Vertical Accuracy Class. result: (missing) report: (DQ_CompletenessCommission) nameOfMeasure: Completeness Report evaluationMethodDescription: These LAS data files include all data points collected. No points have been removed or excluded. A visual qualitative assessment was performed to ensure data completeness. No void areas or missing data exist. The raw point cloud is of good quality and data passes Non-Vegetated Vertical Accuracy specifications. result: (missing) report: (DQ_ConceptualConsistency) nameOfMeasure: Conceptual Consistency evaluationMethodDescription: Data covers the BPA specified for this project. result: (missing) lineage: (LI_Lineage) statement: Data were collected for the State of Michigan and the Michigan Statewide Authoritative Imagery & Lidar Program (MISAIL) by Sanborn Map Company, Inc. USGS made the data available for download from the USGS rockyweb https site (https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/MI_FEMA_2019_C19/). The NOAA Office for Coastal Management (OCM) downloaded the data and processed it to be available for custom download from the Data Access Viewer (DAV). processStep: (LI_ProcessStep) description: The following steps describe the Raw Data Processing and Calibration process: 1) Technicians processed the raw data to LAS format flight lines using the ABGNSS/IMU solution. 2) Technicians use TerraSolid TerraMatch to calculate initial calibration adjustment angles by mission and/or block. This is accomplished by identifying ground and above ground feature observations between flight-lines and calculating the offsets. The technician then analyzed the results and made any necessary additional adjustment until it is acceptable. 3) Once the angle calculation was completed the adjusted settings were applied to all of the flight-lines of the mission and/or block and checked for consistency. The technicians utilized commercial and proprietary software packages to analyze how well flight-line overlaps match and adjusted as necessary until the results met the project specifications. 4) The technicians checked and corrected the vertical misalignment of all flight-lines and also the matching between data and ground truth. The relative accuracy was less than or equal to 6 cm RMSEz within individual swaths and less than or equal to 8 cm RMSDz or within swath overlap (between adjacent swaths). 5) The technicians ran a final vertical accuracy check of the calibrated point cloud against the surveyed check points after the z correction to ensure the requirement of NVA = 19.6 cm 95% Confidence Level (Required Accuracy) was met. Point classification was performed according to USGS Lidar Base Specification 1.3, and breaklines were collected for water features. Bare earth DEMs were exported from the classified point cloud using collected breaklines for hydroflattening. dateTime: DateTime: 2019-01-01T00:00:00 processStep: (LI_ProcessStep) description: LAS Point Classification: The point classification is performed as described below. The bare-earth surface is manually reviewed to ensure correct classification on the Class 2 (Ground) points. After the bare-earth surface is edited and QC'd, it is then used to generate all hydro-breaklines through heads-up digitization. All ground (ASPRS Class 2) lidar data inside of the Lake Pond and River Pond hydro flattening breaklines were then classified to water (ASPRS Class 9) using LP360 functionality. A buffer of 2 feet was also used around each hydro-flattened feature to classify these ground (ASPRS Class 2) points to Ignored ground (ASPRS Class 20). All Lake Pond Island and River Stream Island features were checked to ensure that the ground (ASPRS Class 2) points were reclassified to the correct classification after the automated classification was completed. All overlap data was processed through automated functionality provided by TerraScan to classify the overlapping flight-line data to approved classes by USGS. The overlap data was classified using standard LAS overlap bit. These classes were created through automated processes only and were not verified for classification accuracy. All data was manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler. Global Mapper is used as a final check of the bare-earth dataset. GeoCue was then used to create the deliverable industry-standard LAS files for the Classified Point Cloud Data. LAStools, LP360 and TerraScan software was used to perform statistical analysis of the classes in the LAS files, on a per tile level to verify classification metrics and full LAS header information. dateTime: DateTime: 2019-06-29T00:00:00 processStep: (LI_ProcessStep) description: Data for Alcona, Oscoda, Cheboygan, Chippewa, Gogebic, Crawford & Kalkaska counties was downloaded from the USGS Rocky ftp site in NAD83(2011) Michigan North & Central State Plane (Int ft) coordinates with vertical feet NAVD88 (Geoid12b) elevations. Data were converted to geographic coordinates, from vertical feet to meters, and to ellipsoid heights (using Geoid 12b) for ingest in the NOAA Digital Coast Data Access Viewer. The observed classes process to the Data Access Viewer are: 1 = unclassified, 2 = ground, 7 = low noise, 9 = water, 17 = bridge deck, 18 = high noise, 20 = ignored ground near breakline processor: (CI_ResponsibleParty) organisationName: Office for Coastal Management role: (CI_RoleCode) processor processStep: (LI_ProcessStep) description: Data for Alpena, Antrim, Dickinson, Iron, Luce, Menominee, Montmorency, Ostego, and Schoolcraft counties were downloaded from the USGS Rocky ftp site in NAD83(2011) Michigan North & Central State Plane (Int ft) coordinates with vertical feet NAVD88 (Geoid12b) elevations. Data were converted to geographic coordinates, from vertical feet to meters, and to ellipsoid heights (using Geoid 12b) for ingest in the NOAA Digital Coast Data Access Viewer. The observed classes processed to the Data Access Viewer are: 1 = unclassified, 2 = ground, 7 = low noise, 9 = water, 17 = bridge deck, 18 = high noise, 20 = ignored ground near breakline dateTime: DateTime: 2022-03-30T00:00:00 processor: (CI_ResponsibleParty) organisationName: Office for Coastal Management role: (CI_RoleCode) processor processStep: (LI_ProcessStep) description: Data for Houghton, Keweenaw, and Ontonagon counties were downloaded from the USGS Rocky ftp site in NAD83(2011) Michigan North State Plane (Int ft) coordinates with vertical feet NAVD88 (Geoid12b) elevations. Data were converted to geographic coordinates, from vertical feet to meters, and to ellipsoid heights (using Geoid 12b) for ingest in the NOAA Digital Coast Data Access Viewer. The observed classes processed to the Data Access Viewer are: 1 = unclassified, 2 = ground, 7 = low noise, 9 = water, 17 = bridge deck, 18 = high noise, 20 = ignored ground near breakline dateTime: DateTime: 2023-01-05T00:00:00 processor: (CI_ResponsibleParty) organisationName: Office for Coastal Management role: (CI_RoleCode) processor source: (LI_Source) description: Source Contribution: This data source was used (along with airborne GNSS/IMU data) to georeference the lidar point cloud data. scaleDenominator: (MD_RepresentativeFraction) denominator: 50 sourceCitation: (CI_Citation) title: 8235_Survey_Lower_Peninsula date: (CI_Date) date: 2019-07-23 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: Steven A. Wood Professional Surveyor role: (CI_RoleCode) originator sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimeInstant: timePosition: 2019-07-23 source: (LI_Source) sourceCitation: (CI_Citation) title: USGS Rockyweb Site date: (missing) citedResponsibleParty: (CI_ResponsibleParty) organisationName: USGS role: (CI_RoleCode) publisher processStep: (LI_ProcessStep) description: The vertical values in this data set have been converted to reference North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters, using the GEOID18 grids provided by the National Geodetic Survey. Any datum and projection transformations were then done with the Office for Coastal Management 'datum_shift' program. Compression to an LAZ file was done with the LAStools 'laszip' program and can be unzipped with the same free program (laszip.org) Processing notes: dateTime: DateTime: 2023-08-01T07:27:02 processor: (CI_ResponsibleParty) individualName: NOAA Office for Coastal Management contactInfo: (CI_Contact) address: (CI_Address) electronicMailAddress: coastal.info@noaa.gov role: (CI_RoleCode) processor | |