gov.noaa.nmfs.inport:50046
eng
UTF8
dataset
OCM Partners
resourceProvider
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
2024-02-29T00:00:00
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
NAD83(2011)
2008-11-12
publication
European Petroleum Survey Group
https://apps.epsg.org/api/v1/CoordRefSystem/6318/export/?format=gml
urn:ogc:def:crs:EPSG:6318
6.18.3
North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
https://apps.epsg.org/api/v1/VerticalCoordRefSystem/5703/?api_key=gml
North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
Link to Geographic Markup Language (GML) description of reference system.
information
resourceProvider
European Petroleum Survey Group
https://www.epsg.org/
European Petroleum Survey Group Geodetic Parameter Registry
Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
search
publisher
vertical
OGP
2006-11-28
false
urn:ogc:def:cs:EPSG::6499
Vertical CS. Axis: height (H). Orientation: up. UoM: meter.
Used in vertical coordinate reference systems.
urn:ogc:def:axis:EPSG::114
H
up
urn:ogc:def:crs:EPSG::5703
2011 ARRA Lidar: Hidalgo County (TX)
tx2011_arra_hidalgo_m4986_metadata
2016-01-09
publication
NOAA/NMFS/EDM
50046
https://www.fisheries.noaa.gov/inport/item/50046
WWW:LINK-1.0-http--link
Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
https://coast.noaa.gov/dataviewer
WWW:LINK-1.0-http--link
Citation URL
Online Resource
download
https://coast.noaa.gov
WWW:LINK-1.0-http--link
Citation URL
Online Resource
download
This task order is for planning, acquisition, processing, and derivative products of LiDAR data to be collected for Hidalgo County, Texas. LiDAR data, and derivative products produced in compliance with this task order are part of the data to be obtained under the American Recovery and Reinvestment Act (ARRA) of 2009. Contract number G10PC00025. Specifications listed below are based on the U.S. Geological Survey National Geospatial Program Base LiDAR Specification, Version 13. Tile names were slightly altered to meet particular naming conventions on NOAA OCM ftp. Dataset was titled 2010 but due to acquisition dates falling in 2011, the title has been updated.
Original contact information:
Contact Name: Patrick Emmett
Contact Org: USGS
Title: USGS NGTOC
Phone: 573-308-3587
Email: pemmett@usgs.gov
This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
USGS has a requirement for LiDAR data of Hidalgo County in Texas. Approximately 305 square miles of Hidalgo County will be collected at a nominal pulse spacing (NPS) of 2.0 meters. After macro processing this portion, the data will be shipped with a status of completion to prevent duplication of work with the International Boundary Water Commission (IBWC). The remainder of Hidalgo County Texas LiDAR Acquisition project will also be collected at a NPS of 2.0 meters and is to provide high accuracy bare-earth processed LiDAR data suitable for the project area. The project consisted of acquisition, post-processing, classification of LiDAR data, and creation of final deliverable products. All areas shall be based on UTM14, related to the North American Datum of 1983 (NSRS2007). Vertical accuracy was to achieve a RMSE Z of 12.5 cm (95% confidence level of less than 24.5 cm) or better in the "Open Terrain" land cover category for all areas. Accuracy statement is based on areas of moderate to flat terrain. Diminished accuracies are to be expected in areas in dense vegetation. The accuracy of the LiDAR data as tested met or exceeded the vertical accuracy requirements, however, derived products may be less accurate in areas of dense vegetation due to a lesser number of points defining the bare-earth in such areas.
completed
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
custodian
asNeeded
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4986/supplemental/tx2010_arra_hidalgo_m4986.kmz
This graphic shows the lidar coverage of the Hidalgo County, Texas from 2011 to support ARRA of 2009.
kmz
Lidar - partner (no harvest)
project
InPort
otherRestrictions
Cite As: OCM Partners, [Date of Access]: 2011 ARRA Lidar: Hidalgo County (TX) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/50046.
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
otherRestrictions
Access Constraints: None
otherRestrictions
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.
otherRestrictions
Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of AeroMetric, USGS, NOAA, the Office for Coastal Management or its partners.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
50046
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/50046.pdf
WWW:LINK-1.0-http--link
NOAA Data Management Plan (DMP)
NOAA Data Management Plan for this record on InPort.
information
crossReference
vector
eng; US
elevation
-98.55881
-97.84662
26.23044
26.60401
| Currentness: Ground Condition
2011-02-01
2011-03-02
A footprint of this data set may be viewed in Google Earth at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4986/supplemental/tx2010_arra_hidalgo_m4986.kmz
Reports explaining collection and quality assurance is available at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4986/supplemental/tx2010_arra_hidalgo_m4986_lidarreport.pdf
false
eng
false
none
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
distributor
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=4986
WWW:LINK-1.0-http--link
Customized Download
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
download
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4986/index.html
WWW:LINK-1.0-http--link
Bulk Download
Simple download of data files.
download
dataset
Accuracy
The Fundamental Vertical Accuracy (FVA) of the Classified Bare Earth files for the project area achieved an RMSE of 0.086 meters. Twenty-three (23) 'open terrain' survey control points were used in this evaluation, with an additional 20 'open terrain' points held in reserve and supplied to the client. Additional survey control points were also supplied to the client with 20 points in the category of 'short grass' and 20 points in the category of 'tall grass'.
Horizontal Positional Accuracy
All Area data products were acquired at or below 2500 meters above mean terrain (AMT) and have a horizontal accuracy of 0.45 meters (per manufacturers system specifications), with a nominal point spacing of 1.5 meters.
Vertical Positional Accuracy
The Fundamental Vertical Accuracy (FVA) of the Classified Bare Earth for all Areas achieved is 0.169 meters at a 95% confidence level in the "Open Terrain" land cover category. Twenty-three (23) survey control points were used in this evaluation.; Quantitative Value: 0.169 meters, Test that produced the value: FVA of 16.9 cm. 0.086 m RMSEz (1.96xRMSEz)
Completeness Report
Complete
Conceptual Consistency
None
The LiDAR data was captured using AeroMetric's twin-engine Cessna 310, fixed wing aircraft equipped with a LiDAR system. The LiDAR system includes a differential GPS unit and inertial measurement system to provide superior positional accuracy.
Acquisition parameters:
1. Flight Height - 2500 meters above mean terrain
2. Swath Width - 34 degrees
3. Sidelap - 30%
4. Nominal Post Spacing - 1.5 meters
GPS and IMU processing parameters:
1. Maximum baseline length - Not greater than 40 kilometers.
2. Number of base stations during LiDAR collection - A minimum of 1.
3. Maximum positional RMS of trajectory during LiDAR collection - 0.05 meters
4. IMU processing monitored for consistency and smoothness - Yes.
Point Cloud Processing:
1. Horizontal Datum - NAD83(NSRS2007)
2. Horizontal Coordinates - Universal Transverse Mercator, Zone 14, in meters.
3. Vertical Datum - NAVD88
4. Geoid Model used to reduce satellite derived elevations to orthometric heights - NGS Geoid09.
LiDAR Processing:
1. Point Cloud data is imported via TerraScan in a Microstation V8 (V) CAD environment on a specified 1500 meter by 1500 meter tiling scheme.
2. Analyze the data for overall completeness and consistency. This is to ensure that there are no voids or anomalies in the data collection.
3. Inspect for calibration errors in the dataset using the TerraMatch software. This is accomplished by sampling the data collected across all flight lines and classify the individual lines to ground. The software will use the ground-classified points by flightline to compute corrections (Heading, Pitch, Roll, and Scale).
4. Orientation corrections (i.e. Calibration corrections) are applied (if needed) to the entire dataset.
5. Automatic ground classification is performed using algorithms with customized parameters to best fit the project area. Several areas of varying relief and planimetric features were inspected to verify the final ground surface.
6. AeroMetric, Inc. provided Quality Assurance and Quality Control (QA/QC) data for this project. AeroMetric captured QA/QC points in 'open terrain' land cover category that were used to test the accuracy of the LiDAR ground surface. TerraScan's Output Control Report (OCR) was used to compare the QA/QC data to the LiDAR data. This routine searches the LiDAR dataset by X and Y coordinate, finds the closest LiDAR point and compares the vertical (Z) values to the known data collected in the field. Based on the QA/QC data, a bias adjustment was determined, and the results were applied (if necessary) to the LiDAR data. A final OCR was performed with a resulting RMSE of 0.086 meters for the project.
7. Each tile is reviewed for accuracy and consistency of the macro ground classification.
8. Once the automatic processing and the testing of LiDAR is complete, AeroMetric meticulously reviews the generated bare-earth surface data to ensure that proper classification was achieved as part of a Quality Control process.
9. Final deliverables are generated and output to a client specified 1500 meters by 1500 meters tiling scheme.
2011-09-15T00:00:00
The NOAA Office for Coastal Management (OCM) downloaded topographic files (point clouds) in LAZ format from an USGS ftp site. The data was received in UTM Zone 14 North (in meters) and vertical coordinates were referenced to NAVD88 in meters using the Geoid09 model. OCM performed the following processing for data storage and Digital Coast provisioning purposes:
1. The All-Return LAZ files were checked for erroneous outliers removed.
2. The LAZ files were converted from a UTM coordinates to Geographic Coordinates (decimal degrees), then converted to ellipsoidal vertical units in meters with respect to the Geoid09.
3. Overlapping tiles (42) exist on the county boundary between Hidalgo and Willacy counties. These were decidedly left as is in order to extend past county boundaries for individual county requests. These are duplicate points between projects as they are the same acquired lidar points.
2015-12-20T00:00:00
The vertical values in this data set have been converted to reference North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters, using the GEOID18 grids provided by the National Geodetic Survey.
Any datum and projection transformations were then done with the Office for Coastal Management 'datum_shift' program. Compression to an LAZ file was done with the LAStools 'laszip' program and can be unzipped with the same free program (laszip.org)
Processing notes:
2024-03-01T07:25:15
NOAA Office for Coastal Management
coastal.info@noaa.gov
processor