2010 USACE NCMP Topobathy Lidar: Northeast Atlantic Coast (CT, MA, ME, NH, RI)
OCM Partners
Data Set
(DS)
| ID: 50089
| Published / External
Created: 2017-11-15
|
Last Modified: 2023-10-17
Project (PRJ) | ID: 49401
ID: 50089
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | 2010 USACE NCMP Topobathy Lidar: Northeast Atlantic Coast (CT, MA, ME, NH, RI) |
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Short Name | usace2010_ne_m1174_metadata |
* Status | Completed |
Creation Date | 2010 |
Revision Date | |
• Publication Date | |
* » Abstract |
These files contain topographic lidar and bathymetric data classified as ground (2), unclassified (1), and NOAA OCM bathymetry (11) in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards. Rejected or invalid data is classified as noise (7). These data were collected by a HawkEye II (HEII) lidar sensor. The HEII integrates topographic and bathymetric lidar sensors, and a digital camera 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 Geographical Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3D 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). For the topographic data, vertical positions were acquired to the NAD83 ellipsoid. The National Geodetic Survey's (NGS) GEOID09 model was used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). The bathymetry files for this data set were received by NOAA OCM after the initial topographic files. The bathymetry files were added to the existing topographic data set. The bathymetry files were received in csv format and in geographic coordinates, referenced to the North American Datum of 1983 (NAD83). They were in ellipsoid heights, in meters. For data storage and Digital Coast provisioning, the NOAA OCM converted the topographic files to ellipsoid heights and the bathymetry files to las format. The bathymetry files were also classified as 11 (NOAA OCM bathymetry). The 3D position data are sub-divided into a series of files each covering approximately 5 kilometers of shoreline. In addition to these lidar point data, the bare earth Digital Elevation Models (DEM) created from the lidar point data are also available. These data are available for custom download at the link provided in the URL section of this metadata record. 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 NCMP to depict the elevations above and below the water in the coastal zone of Rhode Island, Massachusetts, New Hampshire, Connecticut, and Maine. |
Notes |
10733 |
Other Citation Details | |
• Supplemental Information |
A footprint of this data set may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1174/supplemental/2010_USACE_JALBTCX_Northeast_Lidar.kmz |
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 | CHARTS |
None | JALBTCX |
None | NCMP |
None | SHOALS |
None | Topobathy |
None | U.S. Army Corps of Engineers |
None | USACE |
Temporal Keywords
Thesaurus | Keyword |
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None | 2010 |
None | July |
None | May |
* Spatial Keywords
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Stratum Keywords
Thesaurus | Keyword |
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Instrument Keywords
Thesaurus | Keyword |
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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 |
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 | Acknowledgment 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 | 2016-05-23 |
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 | 2016-05-23 |
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 | 2016-05-23 |
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 | 2016-05-23 |
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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* » Date Effective From | |
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* » Contact | |
* Contact Instructions |
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* 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 | -71.966003 |
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* » E° Bound | -69.67242 |
* » N° Bound | 43.81846 |
* » S° Bound | 41.288632 |
* » Description |
Extent Group 1 / Vertical Extent
EPSG Code | |
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Vertical Minimum | |
Vertical Maximum |
Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2010-05-24 |
End | 2010-07-10 |
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Alternate End As Of Info | |
Description |
Spatial Information
Spatial Resolution
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Spatial Representation
Grid Representation Used? | |
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Vector Representation Used? | Yes |
Text / Table Representation Used? | |
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Reference Systems
Reference System
EPSG Code | EPSG:6319 | ||||||||||||||||||||||||||||
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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; |
• » 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 | |
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» Download URL | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1174 |
Distributor | NOAA Office for Coastal Management (NOAA/OCM) (2016-05-23 - Present) |
File Name | Customized Download |
Description |
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. |
File Date/Time | |
File Type (Deprecated) | Zip |
Distribution Format | |
File Size | |
Application Version | |
Compression | Zip |
Review Status |
Start Date | |
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» Download URL | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1174/index.html |
Distributor | NOAA Office for Coastal Management (NOAA/OCM) (2016-05-23 - Present) |
File Name | Bulk Download |
Description |
Simple download of data files. |
File Date/Time | |
File Type (Deprecated) | LAZ |
Distribution Format | LAS/LAZ - LASer |
File Size | |
Application Version | |
Compression | Zip |
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Review Status |
URLs
URL | https://coast.noaa.gov/dataviewer |
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Name | NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) |
URL Type | Online Resource |
File Resource Format | HTML |
Description |
The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. |
URL | https://coast.noaa.gov |
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Name | NOAA's Office for Coastal Management (OCM) website |
URL Type | Online Resource |
File Resource Format | HTML |
Description |
Information about the NOAA Office for Coastal Management (OCM). |
URL | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9447/details/9447 |
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Name | Custom DEM Download |
URL Type | Online Resource |
File Resource Format | Zip |
Description |
Link to custom download, from the Data Access Viewer (DAV), the raster Digital Elevation Model (DEM) data that were created from this lidar data set. |
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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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Activity Type | |
Responsible Party | |
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 | |
Analytical Accuracy | |
Horizontal Positional Accuracy |
The data positions were obtained using post processed inertially aided KGPS methods. The horizontal accuracy of the data is better than 0.50m RMSE.; Quantitative Value: 0.98 meters, Test that produced the value: Accuracy based on 1.96 X RMSE. |
Vertical Positional Accuracy |
The data positions were obtained using post processed inertially aided KGPS methods. Tested 0.172m fundamental vertical accuracy at 95 percent confidence level in open terrain using RMSEz x 1.9600. Tested 0.270m supplemental vertical accuracy at 95th percentile in short grass. Tested 0.553m supplemental vertical accuracy at 95th percentile in tall grass. Tested 0.640m supplemental vertical accuracy at 95th percentile in brush/canopy. ; Quantitative Value: 0.172 meters, Test that produced the value: Tested fundamental vertical accuracy at 95 percent confidence level in open terrain. |
Quantitation Limits | |
Bias | |
Comparability | |
Completeness Measure | |
Precision | |
Analytical Precision | |
Field Precision | |
Sensitivity | |
Detection Limit | |
Completeness Report |
None provided |
Conceptual Consistency |
The data provided in this file were tested against ground truth data. Tested 0.172m fundamental vertical accuracy at 95 percent confidence level in open terrain using RMSEz x 1.9600. |
» 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
» Lineage Statement |
The USACE collected, processed, and provided the data to the NOAA Office for Coastal Management (OCM). OCM received the data and processed it to be available for custom download from the Data Access Viewer (DAV) and for bulk download from https. |
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Sources
Citation Title | USACE JALBTCX |
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Contact Role Type | Originator |
Contact Type | Organization |
Contact Name | USACE JALBCTX |
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Process Steps
Process Step Number | 1 |
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» Description |
These data were collected using a HEII system. The system collects topographic lidar data at 64kHz, bathymetric lidar data at 4kHz and RGB imagery at 1Hz. Aircraft position, velocity and acceleration information are collected using an Applanix POS A/V 410. All raw data are processed using AHAB's Coastal Survey Studio (CSS) 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. Fledermaus and GreenC Solutions software is used to inspect and QA/QC data, and anomalous data are flagged as invalid. Data are exported to LAS format using GreenC Solutions and imported to Terrascan for classification. A customized classification macro is used to distinguish ground points (2) and unclassified points (1). The classification results are reviewed and any misclassified points are manually edited. In areas of dense vegetation the bare ground points might be incorrectly classified due to the inability of the laser to penetrate the canopy and reach the bare ground. Classified data are exported from Terrascan and Blue Marble Desktop converts all classified LAS data from UTM to NAD83 geographic coordinates and NAVD88 heights using the Geoid 09 model. |
Process Date/Time | 2010-11-30 00:00:00 |
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Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 2 |
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» Description |
The NOAA Office for Coastal Management (OCM) received topographic data in LAS v1.2 format. The files contained LiDAR elevation measurements. The data were received in geographic coordinates (NAD83) and vertically referenced to NAVD88 using the Geoid09 model. The vertical units of data were meters. The data were classified according to ASPRS LAS classification scheme (1 = unclassified, 2 = ground). OCM performed the following processing for data storage and Digital Coast provisioning purposes: 1. The LAS files were converted from orthometric heights to ellipsoidal heights (GRS80) using Geoid 09. 2. The LAS data were sorted by latitude and the headers were updated. |
Process Date/Time | 2012-02-01 00:00:00 |
Process Contact | Office for Coastal Management (OCM) |
Phone (Voice) | |
Email Address | |
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Process Step Number | 3 |
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» Description |
The NOAA Office for Coastal Management (OCM) received the bathymetric data for this data set at a later date than the topographic data. The bathymetric data was processed to be included with the existing topographic data. The data were received in csv format, in geographic coordinates (NAD83) and were in ellipsoidal heights. The vertical units of data were meters. OCM performed the following processing for data storage and Digital Coast provisioning purposes: 1. The csv files were converted to las files. 2. The las points were classified as 11 (NOAA OCM bathymetry). |
Process Date/Time | 2015-01-12 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 |
2010 USACE NCMP Topobathy Lidar DEM: Northeast Atlantic Coast (CT, MA, ME, NH, RI) |
Catalog Details
Catalog Item ID | 50089 |
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Metadata Record Created By | Anne Ball |
Metadata Record Created | 2017-11-15 15:24+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2023-10-17 16:12+0000 |
Metadata Record Published | 2022-03-16 |
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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