2012 USACE Topobathy Lidar DEM: Post Sandy (NJ & NY)
OCM Partners
Data Set
(DS)
| ID: 64274
| Published / External
Created: 2021-02-09
|
Last Modified: 2024-01-10
Project (PRJ) | ID: 49404
ID: 64274
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | 2012 USACE Topobathy Lidar DEM: Post Sandy (NJ & NY) |
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Short Name | 2012_postsandy_usace_dem_m9012 |
* Status | Completed |
Creation Date | |
Revision Date | |
• Publication Date | 2013-05 |
* » Abstract |
These files contain a digital elevation model derived from lidar data. The lidar data were collected on November 16, 2012 and cover portions of the following counties: New Jersey - Bergen, Essex, Hudson, Middlesex, Monmouth, Ocean, Union New York - Bronx, Kings, Nassau, New York, Queens, Richmond, Suffolk, Westchester These data were collected by the Coastal Zone Mapping and Imaging Lidar (CZMIL) system. CZMIL integrates a lidar sensor with 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. Native lidar data is not generally in a format accessible to most Geographic Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 (NAD83). Vertical positions are referenced to the NAD83 ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID12A model is used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). Original contact information: Contact Org: JALBTCX Title: Data Production Manager Phone: 228-252-1121 Email: JALBTCX@usace.army.mil |
* Purpose |
These data were collected as a part of the Post Sandy effort to depict the elevations above and below the water in the NY coastal zone. |
Notes | |
Other Citation Details | |
• Supplemental Information |
In areas of dense vegetation the points classified as ground might be incorrectly classified due to the inability of the laser to penetrate the canopy and reach the bare ground. |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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ISO 19115 Topic Category | elevation |
None | IWG-OCM |
None | Light Detection and Ranging |
None | National Coastal Mapping Program (NCMP) |
None | U.S. Army Corps of Engineers (USACE) |
Temporal Keywords
Thesaurus | Keyword |
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None | 2012 |
None | November |
* Spatial Keywords
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Stratum Keywords
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Platform Keywords
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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 |
Any conclusions drawn from the analysis of this information are not the responsibility of USACE, JALBTCX, the Office for Coastal Management or its partners. |
Data Set Credit | Acknowledgement of US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) would be appreciated in products derived from these data. |
Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2013-05 |
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 | 2013-05 |
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 | 2013-05 |
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 | 2013-05 |
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 | |
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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 | -74.506526 |
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* » E° Bound | -73.172868 |
* » N° Bound | 41.009632 |
* » S° Bound | 40.022907 |
* » Description |
Extent Group 1 / Vertical Extent
EPSG Code | |
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Extent Group 1 / Time Frame 1
* » Time Frame Type | Discrete |
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* » Start | 2012-11-16 |
End | |
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Description |
Spatial Information
Spatial Resolution
Angular Distance | |
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Angular Distance Units | |
Horizontal Distance | 1.0 |
Horizontal Distance Units | Meter |
Vertical Distance | |
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Spatial Representation
Grid Representation Used? | |
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Vector Representation Used? | Yes |
Text / Table Representation Used? | |
TIN Representation Used? | |
Stereo Model Representation Used? | |
Video Representation Used? |
Grid Representation
Dimension Count | 2 | ||||||||||||
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Cell Geometry | Point | ||||||||||||
Transformation Parameters Available? | Yes | ||||||||||||
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Vector Representation
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Reference Systems
Reference System
EPSG Code | EPSG:6318 | ||||||||||||||||||||||||||||
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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=2478 ; |
• » Data Access Constraints |
None |
• Data 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. These data depict the heights at the time of the survey and are only accurate for that time. |
Metadata Access Constraints | |
Metadata Use Constraints |
Distribution Information
Start Date | 2021-02-09 |
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End Date | Present |
» Download URL | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9012 |
Distributor | NOAA Office for Coastal Management (NOAA/OCM) (2013-05 - Present) |
File Name | Customized Download |
Description |
Create custom data files by choosing data area, map projection, file format, datum, etc. |
File Date/Time | |
File Type (Deprecated) | GeoTIFF |
Distribution Format | GeoTIFF |
File Size | |
Application Version | |
Compression | |
Review Status |
Start Date | 2021-02-09 |
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End Date | Present |
» Download URL | https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/USACE_post-sandy_NY-NJ_2012_9012/index.html |
Distributor | NOAA Office for Coastal Management (NOAA/OCM) (2013-05 - Present) |
File Name | Bulk Download |
Description |
Simple download of data files. |
File Date/Time | |
File Type (Deprecated) | GeoTIFF |
Distribution Format | GeoTIFF |
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Archive Information
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URLs
URL | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2478/supplemental/2012_USACE_Post_Sandy_TopoBathy_Lidar_New_Jersey_and_New_York.kmz |
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Name | Browse Graphic |
URL Type | Browse Graphic |
File Resource Format | kmz |
Description |
This file shows the coverage of this data in New Jersey and New York. |
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Activity Log
Activity Time | 2016-05-23 |
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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 | 2018-03-13 |
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Description |
Partial upload to move data access links to Distribution Info. |
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Issues
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Technical Environment
Description |
Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.0.1770 |
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Data Quality
Representativeness | |
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Accuracy |
These data are not attributed. | Quantitative Value: N/A | Quantitative Test Explanation: These data are not attributed. |
Analytical Accuracy | |
Horizontal Positional Accuracy |
The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than plus or minus 0.75 m. ; Quantitative Value: 0.75 meters, Test that produced the value: RMSE 95% Conf. |
Vertical Positional Accuracy |
The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is 0.125 m RMSE. ; Quantitative Value: 0.125 meters, Test that produced the value: RMSE 95% Conf. |
Quantitation Limits | |
Bias | |
Comparability | |
Completeness Measure |
Cloud Cover: Unknown |
Precision | |
Analytical Precision | |
Field Precision | |
Sensitivity | |
Detection Limit | |
Completeness Report |
This data set covers the spatial extent of bathymetric and topographic lidar data obtained during this survey. |
Conceptual Consistency |
Differences between a DEM created from the lidar data representing bare ground and the ground truth data is unbiased and measures 0.0396 m RMSE. |
» Quality Control Procedures Employed |
Data Management
» Have Resources for Management of these Data Been Identified? | |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | |
» 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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Lineage
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Sources
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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 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 CZMILs 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. NOAAs VDatum software then converts all valid data from ellipsoid to orthometric heights based on the NGS' GEOID12A model and exports valid lidar data as a series of unclassified ascii xyz files. |
Process Date/Time | 2012-12-23 00:00:00 |
Process Contact | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 2 |
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» Description |
The flightline LAS files are imported into GeoCue [V2012], 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, the flightline LAS files are divided into a series of boxes, each of which are 1500 meters in length and width. A customized classification macro, built upon the TerraScan [V12] module within Microstation V8i, classifies valid topographic data as ground points (2) and unclassified points (1). 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 algorithms ground surface instead of manually reclassifying those points. The final classification results are comprised of individual lidar points with classifications of ground (2) or unclassified (1). They are partitioned into a series of USGS 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). |
Process Date/Time | 2012-01-01 00:00:00 |
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Acquisition Information
Instruments
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FAQs
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Child Items
Rubric scores updated every 15m
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Related Items
Item Type | Relationship Type | Title |
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Data Set (DS) | Cross Reference |
2012 USACE Topobathy Lidar: Post Sandy (NJ & NY) point cloud used to derived this DEM |
Catalog Details
Catalog Item ID | 64274 |
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Metadata Record Created By | Kirk Waters |
Metadata Record Created | 2021-02-09 16:14+0000 |
Metadata Record Last Modified By | Kirk Waters |
» Metadata Record Last Modified | 2024-01-10 19:11+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 | 2022-03-16 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2023-03-16 |
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