Dataset Identification:
- TASK NAME: Louisiana Region 1 LiDAR ARRA Task Order LiDAR Data Acquisition and Processing Production Task- Vermillion, Iberia, St. Mary, Terrebonne, and Lafourche Parishes USGS Contract No: G10PC00057 Task Order No: G10PD02781 Woolpert ORDER NUMBER: 70930 CONTRACTOR: Woolpert, Inc. LiDAR data is a remotely sensed high resolution elevation data collected by an airborne platform. The LiDAR sensor uses a combination of laser range finding, GPS positioning, and inertial measurement technologies. The LiDAR systems collect data point clouds that are used to produce highly detailed Digital Elevation Models (DEMs) of the earth's terrain, man-made structures, and vegetation. The task required the LiDAR data to be collected at a nominal pulse spacing (NPS) of 2.0 meters. The final products include first, last, and at least one intermediate return LAS, full classified LAS and a bare earth model in separate files.
- Title 2011 U.S. Geological Survey (USGS) Topographic LiDAR: Louisiana Region 1
- publication Date 2011-04-15
- organisation Name DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
- Contact information
-
- Telephone
-
- Voice 843-740-1200
- Address
-
- 2234 South Hobson Ave., Charleston, SC, 29405-2413
- electronic Mail Address coastal.info@noaa.gov
- organisation Name U.S. Geological Survey
- organisation Name DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
- Contact information
-
- Telephone
-
- Voice 843-740-1200
- Address
-
- 2234 South Hobson Ave., Charleston, SC, 29405-2413
- electronic Mail Address coastal.info@noaa.gov
Theme keywords (theme):
Topography/Bathymetry
Elevation
Lidar
LAS
- Title None
Location keywords:
US
Louisiana
Vermillion Parish
Iberia Parish
St. Mary Parish
Terrebonne Parish
Lafourche Parish
- Title None
Theme keywords (theme):
- Title Activity > Observation
- publication Date 2017-08-24
Theme keywords (theme):
- Title Resource Type > Document
- publication Date 2017-08-24
Theme keywords (theme):
- Title Organization > GOVERNMENT AGENCIES-U.S. FEDERAL AGENCIES
- publication Date 2017-08-24
Theme keywords (theme):
- Title Realm > Earth Surface
- publication Date 2017-08-24
Theme keywords (theme):
- Title Material > Environmental Material
- publication Date 2017-08-24
Theme keywords (theme):
- Title Equipment > Sensor
- publication Date 2017-08-24
Theme keywords (theme):
- Title Property > Measure
- publication Date 2017-08-24
Theme keywords (theme):
- Title Equipment > Instrument
- publication Date 2017-08-24
Theme keywords (theme):
- Title Equipment > platform
- publication Date 2017-08-24
Theme keywords (theme):
- Title Material > Biological Material
- publication Date 2017-08-24
Theme keywords (theme):
- Title Virtual International Authority File (VIAF) Corporate Names
- publication Date 2017-08-24
Theme keywords (theme):
- Title Feature > Physiographic Feature
- publication Date 2017-08-24
purpose:
Browse image (thumbnail):
- maintenance or update frequency: asNeeded
- Constraints
-
- Use limitation statement:
- These data depict the elevations at the time of the survey and are only accurate for that time. 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. Any conclusions drawn from analysis of this information are not the responsibility of NOAA or any of its partners. These data are NOT to be used for navigational purposes.
- Legal Constraints
-
- Use Limitation
- While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Resource extent
-
- westBoundLongitude -92.136664
- eastBoundLongitude -90.239927
- northBoundLatitude 29.804761
- southBoundLatitude 29.039005
Geographic Bounding Box - Temporal Extent
Geographic Extent
2011-01-22
2011-04-12
- The reflective surface data represents the DEM created by the laser energy reflected from the first surface encountered by the laser pulse. Some energy may continue beyond this initial surface, to be reflected by a subsequent surface as represented by the last return data. Intensity information is captured from the reflective surface pulse and indicates the relative energy returned to the sensor, as compared to the energy transmitted. The intensity image is not calibrated or normalized but indicates differences in energy absorption due to the interaction of the surface materials with laser energy, at the wavelength transmitted by the sensor. The bare earth model is created by identifying the returns that fall on the ground surface and by interpolating a surface between these points. In this manner, buildings and vegetation are removed from the bare earth model. This data set does not include bridges and overpasses in the bare earth model as the delineation point for these structures is not reliably discernible in the LiDAR data.
- organisation Name USGS (United States Geological Survey)
- position Name USGS NGTOC
- Contact information
-
- Telephone
-
- Voice (573) 308-3654
- Fax (573) 308-3810
- Address
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- 1400 Independence Rd., Rolla, MO, 65401 Country USA
Vector spatial representation information
-
- Geometric Objects
-
- geometric Object Type point
reference system 1
- Reference System Identifier
- Identifier string: urn:ogc:def:crs:EPSG::4269
- authority
-
- Title North American Datum 1983
- alternateTitle NAD83
- revision Date 2007-01-19
- cited responsible party - resourceProvider
-
- organisation Name
- Contact information
-
- Linkage for online resource
-
- name NAD83
- URL: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
- link function information
- Description Link to Geographic Markup Language (GML) description of reference system.
- cited responsible party - publisher
-
- organisation Name European Petroleum Survey Group
- Contact information
-
- Linkage for online resource
-
- name European Petroleum Survey Group Geodetic Parameter Registry
- URL: http://www.epsg-registry.org/
- link function search
- Description Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
reference system 2
- Reference System Identifier
- Identifier string: Ellipsoid in Meters
- Identifier code space: Local Vertical Reference
Data quality information
Scope of quality information
- name Of Measure Horizontal Positional Accuracy Report
- evaluation Method Description Horizontal accuracy is +/- 3.8-foot at the 95% confidence level using RMSE(r) x 1.9600 as defined by the FGDC Geospatial Positional Accuracy Standards, Part 3: NSSDA.
- name Of Measure Horizontal Positional Accuracy
- measure Description LiDAR system calibration is available in the project report.
- Quantitative Result
-
- result value 1.16
- value Units
-
- name Of Measure Vertical Positional Accuracy Report
- evaluation Method Description The LiDAR data vertical accuracy RMSE is 7.0 cm (0.229 ft). The data collected under this Task Order meets the National Standard for Spatial Database Accuracy (NSSDA) accuracy standards. The NSSDA standards specify that vertical accuracy be reported at the 95 percent confidence level for data tested by an independent source of higher accuracy. (http://www.fgdc.gov/standards/projects/FGDC-standards-projects/accuracy/part3/index_html). The Fundamental Vertical Accuracy (FVA) of the TIN: 13.72 cm (0.45 ft) at a 95% confidence level, derived according to NSSDA, i.e., based on RMSE of 12.5 cm in the "open terrain" land cover category.
- name Of Measure Vertical Positional Accuracy
- measure Description Tested 13.72 cm (0.45 ft) vertical accuracy at 95 percent confidence level.
- Quantitative Result
-
- result value 0.07
- value Units
-
- evaluation Method Description The LIDAR data is visually inspected for completeness to ensure that are no gaps between flight lines.
- measure Description All formatted data are validated using commercial GIS software to ensure proper formatting and loading prior to delivery.
- name Of Measure Quantitative Attribute Accuracy Assessment
- measure Description Points measured will produce an error less than 12.5 cm (0.41 ft) RMSE.
- evaluation Method Description The LiDAR collected for this task order was collected at a vertical accuracy of 12.5 cm (0.41 ft) Root Mean Squared (RMSE), or better.
- Quantitative Result
-
- result value 12.5 cm (0.41 ft) RMSE
- value Units
-
Resource distribution information
Distributor
- organisation Name DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
- Contact information
-
- Telephone
-
- Voice 843-740-1200
- Address
-
- 2234 South Hobson Ave., Charleston, SC, 29405-2413
- electronic Mail Address coastal.info@noaa.gov
- Ordering Instructions The National Geophysical Data Center serves as the archive for this LIDAR data. NGDC should only be contacted for this data if it cannot be obtained from NOAA Coastal Services Center.
Distributor
- individual Name Mike Sutherland
- organisation Name DOC/NOAA/NESDIS/NCEI > National Centers of Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- Contact information
-
- Telephone
-
- Voice 303-497-6120
- Fax 303-497-6513
- Address
-
- 325 Broadway E/GC1, Boulder, CO, 80305-3328 Country USA
- electronic Mail Address mike.sutherland@noaa.gov
- Ordering Instructions The National Geophysical Data Center serves as the archive for this LIDAR dataset. NGDC should only be contacted for the data if it cannot be obtained from NOAA Coastal Services Center.
- Format name LAZ
- Format version
- date of next update: 2014-01-22
- maintenance or update frequency: annually
- notes: This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2013-01-04 version of the FGDC RSE to ISO 19115-2 for LiDAR transform.
- notes: Translated from FGDC 2013-01-22T13:16:23.199-07:00
- individual Name Mike Sutherland
- organisation Name DOC/NOAA/NESDIS/NCEI > National Centers of Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- Contact information
-
- Telephone
-
- Voice 303-497-6120
- Fax 303-497-6513
- Address
-
- 325 Broadway E/GC1, Boulder, CO, 80305-3328 Country USA
- electronic Mail Address mike.sutherland@noaa.gov