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Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Activity Log
Tech Environment
Data Quality
Lineage
Related Items
Catalog Details

Summary

Browse Graphic

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

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

Distribution Information

  • GeoTIFF

    Create custom data files by choosing data area, map projection, file format, datum, etc.

  • GeoTIFF

    Simple download of data files.

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this data may no longer represent actual surface conditions.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. 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

Geographic Area 1

-74.506526° W, -73.172868° E, 41.009632° N, 40.022907° S

Time Frame 1
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
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
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

CC ID: 1038694
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

CC ID: 1038696
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

CC ID: 1038697
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

CC ID: 1038695
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

CC ID: 1293429
W° Bound: -74.506526
E° Bound: -73.172868
N° Bound: 41.009632
S° Bound: 40.022907

Extent Group 1 / Time Frame 1

CC ID: 1293428
Time Frame Type: Discrete
Start: 2012-11-16

Spatial Information

Spatial Resolution

Horizontal Distance: 1.0 Meter

Spatial Representation

Representations Used

Vector: Yes

Grid Representation 1

CC ID: 1038714
Dimension Count: 2
Cell Geometry: Point
Transformation Parameters Available?: Yes

Axis Dimension 1

Dimension Type: Row
Size: 6945
Resolution Type: Length
Resolution: 1.0 Meter

Reference Systems

Reference System 1

CC ID: 1293426

Coordinate Reference System

CRS Type: Geographic 2D
EPSG Code: EPSG:6318
EPSG Name: NAD83(2011)
See Full Coordinate Reference System Information

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

CC ID: 1038698
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

CC ID: 1038699
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

CC ID: 1038700
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
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

CC ID: 1038702
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 1038701
Activity Date/Time: 2017-11-14
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

CC ID: 1038703
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 1038704
Activity Date/Time: 2018-03-13
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

Data Quality

Accuracy:

These data are not attributed. | Quantitative Value: N/A | Quantitative Test Explanation: These data are not attributed.

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

CC ID: 1293423
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 Step 2

CC ID: 1293424
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

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
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