2012 USACE Topobathy Lidar DEM: Post Sandy (NJ & NY)
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:64274 | Updated: January 10, 2024 | Published / External
Summary
Short Citation
OCM Partners, 2024: 2012 USACE Topobathy Lidar DEM: Post Sandy (NJ & NY), https://www.fisheries.noaa.gov/inport/item/64274.
Full Citation Examples
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
Distribution Information
-
GeoTIFF
Create custom data files by choosing data area, map projection, file format, datum, etc.
-
GeoTIFF
Simple download of data files.
None
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this data may no longer represent actual surface conditions.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.
Controlled Theme Keywords
elevation
Child Items
No Child Items for this record.
Contact Information
Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Extents
-74.506526° W,
-73.172868° E,
41.009632° N,
40.022907° S
2012-11-16
Item Identification
Title: | 2012 USACE Topobathy Lidar DEM: Post Sandy (NJ & NY) |
---|---|
Short Name: | 2012_postsandy_usace_dem_m9012 |
Status: | Completed |
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. |
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. |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
ISO 19115 Topic Category |
elevation
|
UNCONTROLLED | |
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 |
---|---|
UNCONTROLLED | |
None | 2012 |
None | November |
Physical Location
Organization: | Office for Coastal Management |
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City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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Maintenance Frequency: | As Needed |
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
Data Steward
Date Effective From: | 2013-05 |
---|---|
Date Effective To: | |
Contact (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 |
URL: | https://coast.noaa.gov |
Distributor
Date Effective From: | 2013-05 |
---|---|
Date Effective To: | |
Contact (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 |
URL: | https://coast.noaa.gov |
Metadata Contact
Date Effective From: | 2013-05 |
---|---|
Date Effective To: | |
Contact (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 |
URL: | https://coast.noaa.gov |
Point of Contact
Date Effective From: | 2013-05 |
---|---|
Date Effective To: | |
Contact (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 |
URL: | https://coast.noaa.gov |
Extents
Currentness Reference: | Ground Condition |
---|
Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -74.506526 | |
---|---|---|
E° Bound: | -73.172868 | |
N° Bound: | 41.009632 | |
S° Bound: | 40.022907 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Discrete |
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Start: | 2012-11-16 |
Spatial Information
Spatial Resolution
Horizontal Distance: | 1.0 Meter |
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Spatial Representation
Representations Used
Vector: | Yes |
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Grid Representation 1
Dimension Count: | 2 | ||||||||
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Cell Geometry: | Point | ||||||||
Transformation Parameters Available?: | Yes | ||||||||
Axis Dimension 1 |
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Reference Systems
Reference System 1
Coordinate Reference System |
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Access Information
Security Class: | Unclassified |
---|---|
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. |
Distribution Information
Distribution 1
Start Date: | 2021-02-09 |
---|---|
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 Type (Deprecated): | GeoTIFF |
Distribution Format: | GeoTIFF |
Distribution 2
Start Date: | 2021-02-09 |
---|---|
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 Type (Deprecated): | GeoTIFF |
Distribution Format: | GeoTIFF |
URLs
URL 1
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. |
Activity Log
Activity Log 1
Activity Date/Time: | 2016-05-23 |
---|---|
Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-11-14 |
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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 Log 3
Activity Date/Time: | 2018-02-08 |
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Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
Activity Date/Time: | 2018-03-13 |
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Description: |
Partial upload to move data access links to Distribution Info. |
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
Accuracy: |
These data are not attributed. | Quantitative Value: N/A | Quantitative Test Explanation: These data are not attributed. |
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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. |
Completeness Measure: |
Cloud Cover: Unknown |
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. |
Lineage
Process Steps
Process Step 1
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. |
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Process Date/Time: | 2012-12-23 00:00:00 |
Process Step 2
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). |
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Process Date/Time: | 2012-01-01 00:00:00 |
Related Items
Item Type | Relationship Type | Title |
---|---|---|
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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GUID: | gov.noaa.nmfs.inport:64274 |
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 Last Review Date: | 2022-03-16 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2023-03-16 |