2016 USACE NCMP Topobathy Lidar DEM: Puerto Rico
OCM Partners
Data Set
(DS)
| ID: 49462
| Published / External
Created: 2017-11-15
|
Last Modified: 2024-01-10
Project (PRJ) | ID: 49404
ID: 49462
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | 2016 USACE NCMP Topobathy Lidar DEM: Puerto Rico |
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Short Name | pr2016_usace_ncmp_pr_dem_m5154_metadata |
* Status | Completed |
Creation Date | |
Revision Date | |
• Publication Date | 2016-09-15 |
* » Abstract |
These files contain rasterized topobathy lidar elevations generated from data collected by the Coastal Zone Mapping and Imaging Lidar (CZMIL) system. CZMIL integrates a lidar sensor with simultaneous topographic and bathymetric capabilities, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 National Adjustment of 2011 (NAD83 NA11). Vertical positions were referenced to the (NAD83 NA11) ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID12B model was used to transform the vertical positions from ellipsoid to orthometric heights referenced to the Puerto Rico Datum of 2002 (PRVD02). The 3-D position data are used to generate a series of gridded file products, which are tiled into quarter-quads or 5km boxes. The data file naming convention is based on the year, effort, area name, "Box" number and product type. An example file name is "2016_NCMP_PuertoRico_01_BareEarth_1mGrid_PRVD02", where 2016 is the year of data collection, NCMP is the project under which data were collected, Puerto Rico is the area of data collection, 01 is the "Box" number, and BareEarth_1mGrid_PRVD02 is the product type. In addition to the bare earth Digital Elevation Models (DEMs), lidar point data are also available. These data are available from the NOAA Digital Coast at: https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=5037 Original contact information: Contact Org: JALBTCX Title: Data Production Manager Phone: 228-252-1131 Email: JALBTCX@usace.army.mil |
* Purpose |
This data was collected as part of the NCMP to depict the elevations above and below the water in the Puerto Rico coastal zone. |
Notes |
12128 |
Other Citation Details | |
• Supplemental Information | |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Data Center Keywords | DOD/USARMY/USACE/SAM/MOBILE/OPJ/JALBTCX > Joint Airborne Lidar Bathymetry Technical Center of Expertise, Mobile District, South Atlantic Division, U.S. Army Corps of Engineers, U.S. Army, U.S. Department of Defense |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT > LAND MANAGEMENT > LAND USE CLASSES |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > TOPOGRAPHICAL RELIEF MAPS |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION |
ISO 19115 Topic Category | elevation |
ISO 19115 Topic Category | imageryBaseMapsEarthCover |
ISO 19115 Topic Category | oceans |
CoRIS Discovery Thesaurus | Geographic Information > LiDAR |
CoRIS Theme Thesaurus | EARTH SCIENCE > Land Surface > Topography> Terrain Elevation |
CoRIS Theme Thesaurus | EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry |
GCMD Data Center Keywords v7 | Spatial Data Branch |
GCMD Data Center Keywords v7 | United States Army |
NOAA NOS Harvest Catalog Thesaurus | CoRIS |
None | Bare Earth |
None | DEM |
None | IWG-OCM |
None | National Coastal Mapping Program (NCMP) |
None | U.S. Army Corps of Engineers (USACE) |
Temporal Keywords
Thesaurus | Keyword |
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None | 2016 |
None | February |
None | January |
* Spatial Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Location Keywords | OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > PUERTO RICO |
Global Change Master Directory (GCMD) Location Keywords | VERTICAL LOCATION > LAND SURFACE |
Global Change Master Directory (GCMD) Location Keywords | VERTICAL LOCATION > SEA FLOOR |
CoRIS Place Thesaurus | COUNTRY/TERRITORY > United States of America > Puerto Rico > Puerto Rico (18N066W0000) |
CoRIS Place Thesaurus | OCEAN BASIN > Atlantic Ocean > Caribbean Sea > North Atlantic Ocean > Puerto Rico> Puerto Rico (18N066W0000) |
Geographic Names Information System | Puerto Rico |
Geographic Names Information System | United States |
Stratum Keywords
Thesaurus | Keyword |
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Instrument Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Instrument Keywords | LIDAR > Light Detection and Ranging |
Platform Keywords
Thesaurus | Keyword |
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Physical Location
• » Organization | Office for Coastal Management |
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• » City | Charleston |
• » State/Province | SC |
• Country | |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | |
• Maintenance Frequency | As Needed |
Maintenance Note | |
» Data Presentation Form | |
• Entity Attribute Overview | |
Entity Attribute Detail Citation | |
Entity Attribute Detail URL | |
Distribution Liability |
These data have been developed from the best available sources. Although efforts have been made to ensure that the data are accurate and reliable, errors and variable conditions originating from physical sources used to develop the data may be reflected in the data supplied. Users must be aware of these conditions and bear responsibility for the appropriate use of the information with respect to possible errors, scale, resolution, rectification, positional accuracy, development methodology, time period, environmental and climatic conditions and other circumstances specific to these data. The user is responsible for understanding the accuracy limitations of the data provided herein. The burden for determining fitness for use lies entirely with the user. The user should refer to the accompanying metadata notes for a description of the data and data development procedures. Any conclusions drawn from the analysis of this information are not the responsibility of JALBTCX, the Office for Coastal Management or its partners. |
Data Set Credit | Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) would be appreciated in any publications or derived products. |
Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2016-09-15 |
Date Effective To | |
Organization | NOAA Office for Coastal Management (NOAA/OCM) |
Address |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address | coastal.info@noaa.gov |
Phone | (843) 740-1202 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2016-09-15 |
Date Effective To | |
Organization | NOAA Office for Coastal Management (NOAA/OCM) |
Address |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address | coastal.info@noaa.gov |
Phone | (843) 740-1202 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2016-09-15 |
Date Effective To | |
Organization | NOAA Office for Coastal Management (NOAA/OCM) |
Address |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address | coastal.info@noaa.gov |
Phone | (843) 740-1202 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2016-09-15 |
Date Effective To | |
Organization | NOAA Office for Coastal Management (NOAA/OCM) |
Address |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address | coastal.info@noaa.gov |
Phone | (843) 740-1202 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
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* Contact Instructions |
Extents
Currentness Reference | Ground Condition |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -67.293234 |
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* » E° Bound | -65.588244 |
* » N° Bound | 18.54085 |
* » S° Bound | 18.27236 |
* » Description |
Extent Group 1 / Vertical Extent
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Vertical Maximum |
Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2016-01-28 |
End | 2016-02-07 |
Alternate Start As Of Info | |
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Description |
Spatial Information
Spatial Resolution
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Vertical Distance | |
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Spatial Representation
Grid Representation Used? | Yes |
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Video Representation Used? |
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Access Information
Data License | |
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Data License URL | |
Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» Data Access Procedure |
This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5154; |
• » Data Access Constraints |
None. These data have been developed from the best available sources. Although efforts have been made to ensure that the data are accurate and reliable, errors and variable conditions originating from physical sources used to develop the data may be reflected in the data supplied. Users must be aware of these conditions and bear responsibility for the appropriate use of the information with respect to possible errors, scale, resolution, rectification, positional accuracy, development methodology, time period, environmental and climatic conditions and other circumstances specific to these data. The user is responsible for understanding the accuracy limitations of the data provided herein. The burden for determining fitness for use lies entirely with the user. The user should refer to the accompanying metadata notes for a description of the data and data development procedures. |
• Data Use Constraints |
These data depict the heights at the time of the survey and are only accurate for that time. Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) would be appreciated in any publications or derived products. The data herein, including but not limited to geographic data, tabular data, analytical data, electronic data structures or files, are provided "as is" without warranty of any kind, either expressed or implied, or statutory, including, but not limited to, the implied warranties or merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the data is assumed by the user. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the U.S. Army Corps of Engineers, Mobile District Office, Spatial Data Branch be liable for direct, indirect, incidental, consequential or special damages of any kind, including, but not limited to, loss of anticipated profits or benefits arising out of use of or reliance on the data. The Spatial Data Branch does not accept liability for any damages or misrepresentation caused by inaccuracies in the data or as a result of changes to the data caused by system transfers or other transformations or conversions, nor is there responsibility assumed to maintain the data in any manner or form. 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. |
Metadata Access Constraints | |
Metadata Use Constraints |
Distribution Information
Start Date | |
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» Download URL | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5154 |
Distributor | |
File Name | Customized Download |
Description |
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. |
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» Download URL | https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/USACE_PuertoRico_Topobathy_prvd02_DEM_2016_5154/index.html |
Distributor | |
File Name | Bulk Download |
Description |
Simple download of data files. |
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Archive Information
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URLs
URL | https://coast.noaa.gov/dataviewer |
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Name | |
URL Type | Online Resource |
File Resource Format | |
Description |
URL | https://coast.noaa.gov |
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URL Type | Online Resource |
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Activity Log
Activity Time | 2017-05-25 |
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Activity Type | |
Responsible Party | |
Description |
Date that the source FGDC record was last modified. |
Activity Time | 2017-11-14 |
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Activity Type | |
Responsible Party | |
Description |
Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. |
Activity Time | 2018-02-08 |
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Activity Type | |
Responsible Party | |
Description |
Partial upload of Positional Accuracy fields only. |
Activity Time | 2018-02-13 |
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Partial upload to move data access links to Distribution Info. |
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Technical Environment
Description |
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.0.3035 |
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Data Quality
Representativeness | |
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Accuracy |
These data are not attributed. | Quantitative Value: None | Quantitative Test Explanation: These data are not attributed. |
Analytical Accuracy | |
Horizontal Positional Accuracy |
CZMIL topographic data - Compiled to meet 1 m horizontal accuracy at 95% confidence level. CZMIL bathymetric data - Compiled to meet 3.5 + 0.05d m horizontal accuracy at 95% confidence level, d is depth. |
Vertical Positional Accuracy |
CZMIL topographic data - Compiled to meet 19.6 cm vertical accuracy at 95% confidence level. CZMIL bathymetric shallow FOV data - Compiled to meet SQRT((0.20^2) +((0.0075d)^2)) m vertical accuracy at 95% confidence level, d is depth. CZMIL bathymetric deep FOV data - Compiled to meet SQRT((0.30^2) +((0.013d)^2)) m vertical accuracy at 95% confidence level, d is depth. |
Quantitation Limits | |
Bias | |
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Analytical Precision | |
Field Precision | |
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Detection Limit | |
Completeness Report |
This data set covers the spatial extent of topographic lidar data obtained during this survey. |
Conceptual Consistency |
During inspection and QC of the lidar point cloud, flightline to flightline elevation differences met the CZMIL sensor specifications. |
» Quality Control Procedures Employed |
Data Management
» Have Resources for Management of these Data Been Identified? | |
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» Do these Data Comply with the Data Access Directive? | |
» Is Access to the Data Limited Based on an Approved Waiver? | |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | |
» Approximate Delay Between Data Collection and Dissemination | |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
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» Actual or Planned Long-Term Data Archive Location | |
» If World Data Center or Other, Specify | |
» If To Be Determined, Unable to Archive, or No Archiving Intended, Explain |
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» Approximate Delay Between Data Collection and Archiving | |
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
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Process Steps
Process Step Number | 1 |
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» Description |
These data were collected using the CZMIL system. It is owned and operated by the U.S. Army Corps of Engineers (USACE). The system collects topobathy lidar data at 10 kHz and RGB imagery at 2 Hz. A CASI-1500 hyperspectral line scanner is integrated with the system as well. Aircraft position, velocity and acceleration information are collected through a combination of Novatel and POS A/V 510 equipment. All raw data streams are transferred to the office for downloading and processing in CZMIL's Hydro Fusion software. Aircraft position data are processed using POSPac software and the results are combined with the lidar data to produce 3-D positions for each lidar shot. Upon inspection and QA/QC in the software packages Fledermaus and PFM_ABE, anomalous data are flagged as invalid and have the withheld bit set. PFM_ABE software then converts all valid data from ellipsoid to orthometric heights based on the NGS' GEOID12B model and exports valid lidar data as a series of unclassified LAS files. |
Process Date/Time | 2016-01-28 00:00:00 |
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Email Address | |
Source |
Process Step Number | 2 |
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» Description |
LAS files are imported into GeoCue V2016.1.21.4, which is a geospatial workflow production and management software tool employed by JALBTCX to perform and monitor production of data products. Upon import into GeoCue, a customized classification macro, built upon the TerraScan V13 module within Microstation V8i, classifies valid topobathy data as ground points (2) and unclassified points (1), and valid bathymetric points (29). Upon completion the macro, the classification results undergo quality control and any misclassified points are manually edited. In areas of dense vegetation the bare earth ground points might be incorrectly classified due to the inability of the laser to penetrate the canopy and reach the bare ground. In these areas, JALBTCX defaults to the algorithm's "ground" surface instead of manually reclassifying those points. They are partitioned into a series of 5km or quarter quad delivery boxes, one Classified LAS file per box. The format of the file is LAS version 1.2. Data are classified as 1 (valid non-ground topographic data), 2 (valid ground topographic data), and 29 (valid bathymetric data). |
Process Date/Time | 2016-06-03 00:00:00 |
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Process Step Number | 3 |
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» Description |
Data classified as ground points (2) and bathymetric points (29) in the las files are converted to a grid by generating a triangulated irregular network (TIN) and then extracting the grid node elevations from the TIN surface. The origin point of the grid is located at a horizontal position whose value is evenly divisible by the 1m grid resolution such that rasters from subsequent surveys have common cell boundaries. JALBTCX uses Quick Terrain Modeler V8 to perform this operation utilizing the following parameters; "Legacy Triangulation", "Max Sample Excursion - 30000", "Max Triangle Side - 30000", "Radius - none", "Tolerance - 1", and "Tiling Settings Snap to Grid (Expand)." The grid is exported from Quick Terrain Modeler as an ESRI ASCII Z grid file. Utilizing an in-house python script within ESRI ArcMap V10.1, the ASCII Z grid file is converted to a tiff-format raster file whose projection is defined as "The Puerto Rico Datum of 2002 (PRVD02)." The raster is then multiplied against a corresponding 1m Grid mask raster, a mask image produced from JALBTCX's 1m Grid, in ESRI's Raster Calculator to remove interpolated areas where data does not exist. |
Process Date/Time | 2016-08-10 00:00:00 |
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Process Step Number | 4 |
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» Description |
The NOAA Office for Coastal Management (OCM) received 968 1 meter resolution, bare earth topobathy DEM files from JALBTCX in tif format. Horizontal positions were in decimal degrees of latitude and longitude, referenced to the North American Datum of 1983 National Adjustment of 2011 (NAD83 NA11). Vertical positions were referenced to the Puerto Rico Vertical Datum of 2002 (PRVD02) and provided in meters. OCM made no changes to the data and added it to the Digital Coast for provisioning. |
Process Date/Time | 2016-09-20 00:00:00 |
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Acquisition Information
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Catalog Details
Catalog Item ID | 49462 |
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Metadata Record Created By | Anne Ball |
Metadata Record Created | 2017-11-15 15:13+0000 |
Metadata Record Last Modified By | Kirk Waters |
» Metadata Record Last Modified | 2024-01-10 18:53+0000 |
Metadata Record Published | 2024-01-10 |
Owner Org | OCMP |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2018-02-13 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2019-02-13 |
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