| 2002/2003 IfSAR data for Southern California: Digital Elevation Model (NAVD88) | identificationInfo|
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| (MI_Metadata) fileIdentifier: gov.noaa.nmfs.inport:48381 language: LanguageCode: eng characterSet: (MD_CharacterSetCode) UTF8 hierarchyLevel: (MD_ScopeCode) dataset contact: (CI_ResponsibleParty) organisationName: Office for Coastal Management 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: 2024-02-29T00:00:00 metadataStandardName: ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data metadataStandardVersion: ISO 19115-2:2009(E) return to top identificationInfo: (MD_DataIdentification) citation: (CI_Citation) title: 2002/2003 IfSAR data for Southern California: Digital Elevation Model (NAVD88) alternateTitle: socal_ifsar_dem_navd88 date: (CI_Date) date: 2004 dateType: (CI_DateTypeCode) publication identifier: (MD_Identifier) authority: (CI_Citation) title: NOAA/NMFS/EDM date: (inapplicable) code: Anchor: InPort Catalog ID 48381 citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.fisheries.noaa.gov/inport/item/48381 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) abstract: This metadata document describes the collection and processing of topographic elevation point data derived from Interferometric Synthetic Aperture Radar (IfSAR) measurement for coastal Southern California. Collection consists of topographic elevations from the California counties of Santa Barbara, Ventura, Los Angeles, Orange, and San Diego, and the hydrologic units within those counties that drain to the Pacific Ocean along with offshore islands within the Channel Islands. The resulting data available for download, include the Digital Elevation Model (DEM), and the Raw magnitude radar reflectance data. Height Variance data is available upon request from NOAA OCM. The elevation data is first surface return (vegetation is in the dataset) X-band IfSAR with three meter point spacing and approximately one meter vertical accuracy in non-vegetated areas. The elevation data is available in NAVD88 vertical datum. Original contact information: Contact Org: NOAA Office for Coastal Management Phone: 843-740-1202 Email: coastal.info@noaa.gov purpose: The mission of the NOAA Office for Coastal Management is to provide coastal managers and partners with data and associated decision support tools to more effectively manage and preserve America's coastal zone. This project is a collaboration between the NOAA Office for Coastal Management and the Southern California Water Research Project which is charged with contributing to the scientific understanding of linkages among human activities, natural events, and the health of the Southern California coastal environment. This project uses Interferometric synthetic aperture radar to create accurate, detailed elevation models and associated imagery to support an array of studies and analyses that include hydrologic modeling, watershed delineation and water quality assessment. When this data is combined with other geographic data layers, NOAA OCM and SCCWRP will have the ability to communicate an understanding of the linkages between natural and human activities to decision makers and other stakeholders, and to develop strategies for protecting the ocean environment for this and future generations. credit: NOAA Office for Coastal Management 2234 S. Hobson Ave. Charleston, SC 29405-2413 Tel. 843-740-1210 FAX. 843-740-1290 EarthData International of Maryland, LLC 7320 Executive Way Frederick, MD 21704 Tel. 301-948-9550 FAX. 301-963-2064 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 > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > TOPOGRAPHICAL RELIEF MAPS 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: 17.0 descriptiveKeywords: (MD_Keywords) keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Location Keywords date: (missing) edition: 20.8 descriptiveKeywords: (MD_Keywords) keyword: CA keyword: California keyword: Channel Islands keyword: Coastal keyword: Los Angeles County keyword: Orange county keyword: San Diego County keyword: Santa Barbara County keyword: United States of America (USA) keyword: Ventura County type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: Geographic Names Information System date: (missing) descriptiveKeywords: (MD_Keywords) keyword: DSM keyword: GeoSAR keyword: Height variance data keyword: IfSAR keyword: Interferometric keyword: Interferometric Synthetic Aperture Radar (IfSAR) keyword: Mapping keyword: RADAR keyword: Raw magnitude radar imagery (MAG) type: (MD_KeywordTypeCode) theme descriptiveKeywords: (MD_Keywords) keyword: DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce type: (MD_KeywordTypeCode) dataCentre thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Data Center Keywords date: (CI_Date) date: 2017-04-24 dateType: (CI_DateTypeCode) publication edition: 8.5 citedResponsibleParty: GCMD Landing Page descriptiveKeywords: (MD_Keywords) keyword: DEMs type: (MD_KeywordTypeCode) project thesaurusName: (CI_Citation) title: InPort date: (inapplicable) resourceConstraints: (MD_LegalConstraints) useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Cite As: Office for Coastal Management, [Date of Access]: 2002/2003 IfSAR data for Southern California: Digital Elevation Model (NAVD88) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48381. 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 otherConstraints: Access Constraints: None resourceConstraints: (MD_LegalConstraints) useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Use Constraints: These data depict the heights 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. Not intended for legal use. resourceConstraints: (MD_LegalConstraints) useLimitation: (MD_RestrictionCode) otherRestrictions otherConstraints: Distribution Liability: Any conclusions drawn from 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: 48381 citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/48381.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) grid language: eng; US topicCategory: (MD_TopicCategoryCode) elevation environmentDescription: The following describes the hardware and software environment for the acquisition, processing/mosaicking and product finishing phases of the project. A. Acquisition 1. Gulfstream-II Jet Aircraft 2. Ashtech Z-12 GPS Receiver 3. Honeywell GPS/IMU (EGI) 4. Sandi National Laboratories Metrology System 5. Sony Data Instrumentation Recorder (DIR) 6. Sony 19mm tapes 7. GeoSAR X-band/P-band Collection - JPL developed software/hardware B. Processing/Mosaicking 1. SGI2400 Processors (a) DMF Ver. 2.7.0.0 (b) TMF Ver. 1.3.5.0 (c) Openvault Ver 1.4 (d) IRIX Ver. 6.5.12M 2. Ampex Storage (64 TB) 3. SGI Workstations (a) OS/UNIX (b) Erdas Imagine Ver. 8.5 (c) JURASSICPROK Jurx_20031024_cal (JPL) (d) DGX (JPL) (e) Multi-Mosaick, Ver 28 Jan 04 (JPL) (f) Multi-Match, Ver 28 Jan 04 (JPL) (g) Multi-Cull, Ver 28 Jan 04 (JPL) (h) Multi-Affine, Ver 28 Jan 04 (JPL) (i) Motion Measurement Processing, Ver 27 May 03 (JPL) (j) Terrasurver (k) Projector, Ver. .3a (l) ESRI ArcView 3.2a (m). EarthData Proprietary Software C. Product Finishing 1. Bentley - Microstation 2. Terrasolid - Terrascan Ver. 3.003 3. Terrasolid - Terramodeler Ver. 3.003 4. ESRI - ArcInfo ARC GIS Ver. 8.2 5. Microsoft Windows 2000 Ver. 5.0 6. EarthData proprietary software extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -118.00415 eastBoundLongitude: -115.973179 southBoundLatitude: 32.489551 northBoundLatitude: 33.631677 temporalElement: (EX_TemporalExtent) extent: TimePeriod: description: | Currentness: Ground Condition beginPosition: 2002-01-01 endPosition: 2003-01-01 supplementalInformation: A footprint of this data set may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12a/584/supplemental/Southern_CA_IfSAR.kmz return to top contentInfo: (MD_FeatureCatalogueDescription) complianceCode: false language: LanguageCode: eng includedWithDataset: false featureCatalogueCitation: (CI_Citation) title: none date: (unavailable) return to top distributionInfo: (MD_Distribution) 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://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/California_IfSAR_DEM_2002_244/index.html protocol: WWW:LINK-1.0-http--link name: Bulk Download description: Simple download of data files. function: (CI_OnLineFunctionCode) download transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=244 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. function: (CI_OnLineFunctionCode) download return to top dataQualityInfo: (DQ_DataQuality) scope: (DQ_Scope) level: (MD_ScopeCode) dataset report: (DQ_AbsoluteExternalPositionalAccuracy) nameOfMeasure: Horizontal Positional Accuracy evaluationMethodDescription: The horizontal accuracy was tested by comparing GPS ground control points against the data set. Test consisted of visual checks and the use of EarthData proprietary software. Reporting according to the National Standard for Spatial Data Accuracy, the accuracy statement is "Compiled to meet 4.3 meter horizontal accuracy at 95% confidence level." result: (missing) report: (DQ_AbsoluteExternalPositionalAccuracy) nameOfMeasure: Vertical Positional Accuracy evaluationMethodDescription: The vertical accuracy value for the Southern California IfSAR survey is reported according to the vertical accuracy reporting standard published in the National Standard for Spatial Data Accuracy. The statement is "Tested 2.20 meter fundamental vertical accuracy at 95th percentile in mixed land covers." Thus, elevation values have been determined to be vertically accurate to within 2.20 meters. Compliance with the accuracy requirements was ensured by comparing National Geodetic Survey base stations within the study area to the processed elevation data set. The test consisted of subtracting interpolated (TIN) IfSAR elevation values from National Geodetic Survey (NGS) benchmark elevations. Differences between the two datasets were ranked and analyzed. The overall RMSE value was +/-1.04 meters based on a sample of 151 benchmarks. A Shapiro-Wilk statistical test indicated that the elevation differences were not normally distributed, so the vertical positional accuracy value was determined by calculating the elevation difference value at the 95th percentile of the total sample population following NSSDA guidelines. result: (missing) report: (DQ_CompletenessCommission) nameOfMeasure: Completeness Report evaluationMethodDescription: The data set comprehensively includes all anticipated topographic elevation data for the region covered. result: (missing) report: (DQ_ConceptualConsistency) nameOfMeasure: Conceptual Consistency evaluationMethodDescription: EarthData International complied with the accuracy requirements through the placement of radar reflective corner reflectors, GPS ground control points, GPS base station locations and ABGPS/IMU. This data was integrated into the acquisition, processing/mosaicking and product finishing process to ensure that the accuracy requirements were met. result: (missing) lineage: (LI_Lineage) statement: (missing) processStep: (LI_ProcessStep) description: EarthData has developed an in depth production process for processing GeoSAR data to meet NOAA's specifications. The following outlines the GeoSAR acquisition and processing workflow that was designed to produce the final product deliverables. 1. PROJECT PLANNING. The success of this project depended on effective management of all components of the project. To support this effort EarthData identified an experienced management team to oversee all aspects of the project. This team was responsible for ensuring that all project requirements outlined in the SOW and any subsequent amendments were met and that an open communication/reporting line was maintained with all participants. 2. GeoSAR ACQUISITION AND PROCESSING WORKFLOW. This section describes the general workflow for the GeoSAR system for the planning, collection, processing, and mosaicking of GeoSAR dual band IFSAR products. 2.1 Collection & Processing Requirements Production Steps Six major activities take place in this production step. A. Ground Control requirements are derived from the Project accuracy and QC specification in combination with the data take flight lines. The need for in situ corner reflectors, kinematic GPS profiles, and mosaicking control drive this task. B. Kinematic GPS is routinely specified for collection (where cost effective) to provide an independent means of quickly verifying the end mosaic product. This is an important part of the overall QA process, since this data is sequestered from the mosaicking staff until after the mosaic is completed. Kinematic GPS data is frequently collected prior to deployment in conjunction with the site survey (see item-D, below). C. GPS Base Station Location candidate sites are selected from the existing High Accuracy Regional Networks (HARN) in the project area, and the High Precision Geodetic Net (HPGN) in California. One or more such locations are usually occupied as the base stations during the flight mission. If such a station is not available within or close to the project site, then either an existing HPGN densification station is used or a new station is established through static GPS survey connected to HPGN stations and meeting the FGCS Order-C, Class-I relative positioning standard. D. Site Surveys are usually conducted several weeks to several months prior to deployment to identify reflector ground control locations, identify and resolve deployment issues (obtain permission or permits), and to verify that the GPS base station receives a high quality signal at the selected primary and backup locations. Kinematic dGPS traces are frequently obtained at this time using one of the base station locations. E. Detailed Acquisition Planning generates a complete acquisition plan including final notched frequency waveforms based upon coordination with the Army Spectrum Office. Flight lines are fully specified and the associated run-time data packets finalized and checked by the Project Manager and the Radar Operators for accuracy and completeness. F. Sortie Packing is the final planning step prior to initiating the Deployment & Acquisition of the raw radar data. In this step the various data take lines are bundled into a flight (sortie) and the corresponding logistical support requirements are determined (e.g., ground control, media, contingency supplies, etc.). The sortie schedule is specified, crews hired, personnel reserved, suppliers hired, and support material inventoried. 2.2 Deployment & Acquisition of Raw Data Production Steps Three major activities take place in this production step. A. Mobilization initiates the acquisition process. If the aircraft requires alternate basing, then it is moved to this base. The aircrew, the Radar operators, and the In-field Acquisition Manager secure local lodging and prepare for the initial sortie. dateTime: DateTime: 2004-01-01T00:00:00 processStep: (LI_ProcessStep) description: Data was received in ellipsoid, and two other data sets (NAVD88 and NGVD29) were also created. NOAA Coastal Service Center converted the binary raster grid file to xyz points. The xyz points were projected from UTM zone 11 meters to geographic coordinates using the General Cartographic Transformation Package (GCTP) software. The NGS geoid03 model was used to convert elevations referencing the GRS80 ellipsoid to NAVD88. The coordinates were projected back to UTM zone 11 meters and the xyz points were converted to a binary raster file. In-house routines that used the GDAL open source library converted the floating point raster data sets into Environmental Research System Institute (ESRI) Arc Grids. These grids were then loaded into a single raster data set within ArcSDE using a utility developed with ESRI ArcObjects. dateTime: DateTime: 2004-01-01T00:00:00 source: (LI_Source) description: Source Contribution: NOAA Coastal Service Center obtained the final product deliverable from EarthData International, processed it, and loaded it into ArcSDE for distribution purposes. | Type of Source Media: Digital sourceCitation: (CI_Citation) title: 2002 Southern California IfSAR date: (CI_Date) date: 2004-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: (inapplicable) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://coast.noaa.gov/dataviewer/viewer.html?keyword=ifsar protocol: WWW:LINK-1.0-http--link name: Source Citation URL description: Source Citation URL function: (CI_OnLineFunctionCode) information role: (inapplicable) sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimeInstant: timePosition: 2004 source: (LI_Source) description: Source Contribution: The project was flown using EarthData's modified Gulfstream-II jet aircraft. The IfSAR data was captured using a dual-frequency, dual-polarimetric, Interferometric airborne radar mapping system (GeoSAR) that generates digital elevation models (DEMs) and orthorectified radar reflectance maps near the tops of trees as well as beneath foliage. Data was captured simultaneously in both X-band (first surface, near the tops of trees) and P-band (beneath the foliage). X-band antenna are mounted under the wings close to the fuselage and have a 160 MHz bandwidth at a center frequency of 9.7 GHz. P-band antennas are mounted on the wingtips and have a center frequency of 350 MHz. Each X-band and P-band antenna provides two looks at each point on the ground for a total of four looks on each side. Flight lines are overlapped to provide coverage of the space directly beneath the aircraft. As a result, some points on the ground are covered eight times. Left-right look angles on each side of the aircraft combined with mosaicking process mitigates radar shadow and layover. X-band data has been processed for the entire project area and P-band has been processed for an area of approximately 300 square kilometers within the project area. Due to flight clearance requirements all data was normally collected between the hours of 10 PM and 7 AM. | Source Geospatial Form: model | Type of Source Media: Digital data tape sourceCitation: (CI_Citation) title: GeoSAR Mapping of Southern California date: (CI_Date) date: 2004-03-16 dateType: (CI_DateTypeCode) publication sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimeInstant: timePosition: 2004-03-16 source: (LI_Source) description: Source Contribution: Ground control and GPS base station locations were established to provide the necessary control to meet the accuracy requirements of the project. Radar reflective corner reflectors were deployed across the project area to be used in the mosaicking stage to ensue that the data met the accuracy requirements. A total of fourteen reflectors were deployed across the total project area with six reflectors deployed within the Phase I project area. A total of ten additional ground control points were established using GPS for vertical and horizontal coordinate values. These points were used during the quality control process to evaluate the accuracy of the final mosaicked data. Ground control references UTM Zone 11, NAD83, GRS80. | Source Geospatial Form: model | Type of Source Media: Paper/digital sourceCitation: (CI_Citation) title: Ground Control Survey date: (CI_Date) date: 2004-01-01 dateType: (CI_DateTypeCode) publication sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimeInstant: timePosition: 2004 | |