2008 South Carolina Department of Natural Resources (SCDNR) South Carolina Lidar - Marion County
Dataset Identification:
Resource Abstract:
The project area is composed of 16 counties in the State of South Carolina - Cherokee, Union, Laurens, Greenwood, Newberry,
Chester, Fairfield, Lancaster, Chesterfield, Marlboro, Darlington, Dillon, Marion, Williamsburg, Clarendon, and Orangeburg.
The project area consists of approximately 10,194 square miles including a buffer of 50 feet along the edges of the project
area and an additional buffer in some areas. The project design of the lidar data acquisition was developed to support a nominal
post spacing of 1.4 meters. The Fugro EarthData, Inc. acquisition team of Fugro Horizons, Inc. and North West Group acquired
721 flight lines in 44 lifts from January 15, 2008 through February 10, 2008. The data was divided into 5000' by 5000' foot
cells that serve as the tiling scheme. Lidar data collection was performed with a Cessna 310 aircraft, utilizing a Leica ALS50-II
MPiA sensor, collecting multiple return x, y, and z data as well as intensity data. Lidar data was processed to achieve a
bare ground surface (Classes 2 and 8). Lidar data is remotely sensed high-resolution elevation data collected by an airborne
collection platform. Using a combination of laser range finding, GPS positioning and inertial measurement technologies, lidar
instruments are able to make highly detailed Digital Elevation Models (DEMs) of the earth's terrain, man-made structures,
and vegetation.
Citation
Title 2008 South Carolina Department of Natural Resources (SCDNR) South Carolina Lidar - Marion County
publication Date
2009-01-01
presentationForm
imageDigital
cited responsible party
-
originator
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
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
other Citation Details
Cinergi keyword enhanced.File generated at Thu Aug 24 09:57:59 UTC 2017
purpose:
The purpose of this project is to collect and deliver topographic elevation point data derived from multiple return light
detection and ranging (lidar) measurements for a 16-county area in South Carolina. The elevation data will be used as base
data for South Carolina's flood plain mapping program (as part of FEMA's Map Modernization Program) and for additional geospatial
map products in the future.
Resource language:
eng; USA
Resource progress code:
completed
Resource Maintenance Information
maintenance or update frequency:
unknown
Constraints on resource usage:
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.
Constraints on resource usage:
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.
Spatial representation type code:
vector
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-79.573248
eastBoundLongitude
-79.113158
northBoundLatitude
34.310774
southBoundLatitude
33.693461
Temporal Extent
2008-01-15
2008-02-10
Additional information on resource:
Lidar point cloud data delivered from vendor as tiles in LAS 1.1 format; ASPRS classification scheme, class 12 - flight line
overlap points, class 9 - points in water, class 8 - model-key points, class 2 - ground points, and class 1 - all other.-->
point of contact
-
pointOfContact
individual Name Dr. Jim Scurry
organisation Name
South Carolina Department of Natural Resources
position Name Technology Development Program Director
Contact information
Telephone
Voice (803) 734-9494
Address
1000 Assembly StreetSuite 134, Columbia, SC, 29201
Country USA
Description Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems
and Coordinate Transformations.
source description
Source Contribution: Aerial Lidar Acquisition. The Fugro EarthData, Inc. acquisition team of Fugro Horizons, Inc. and North
West Group collected ALS50-II derived lidar over 16 counties in the State of South Carolina with a 1.4m, nominal post spacing
using a Cessna 310 aircraft. The collection for the entire project area was accomplished from January 15, 2008 through February
10, 2008 (Flight dates were January 15, 16, 18, 20, 21, 25, 27, 28, 29, 30, 31 and February 2, 3, 4, 7, 8, 10). The collection
was performed using a Leica ALS50-II MPiA lidar system, serial numbers ALS039 and ALS064, including an inertial measuring
unit (IMU) and a dual frequency GPS receiver. This project required 44 lifts of flight lines to be collected. The lines were
flown at an average of 6,000 feet above mean terrain using a maximum pulse rate frequency of 112,000 pulses per second. The
planned maximum baseline length was 50 miles. Source Type: external hard drive
source citation
Title Aerial Acquisition of Lidar Data for 16 counties in the State of South Carolina
publication Date
2008-02-15
cited responsible party
-
originator
organisation Name
Fugro EarthData, Inc.
Resource extent
Temporal Extent
2008-01-15
2008-02-10
source
source description
Source Contribution: Ground Control. ESP under contract to Fugro EarthData, Inc. successfully established ground control for
Marion County, SC. A total of 14 ground control points in Marion County, SC were acquired. GPS was used to establish the control
network. The horizontal datum was the North American Datum of 1983, 2007 adjustment (NAD83/2007). The vertical datum was the
North American Vertical Datum of 1988 (NAVD88). Source Type: electronic mail system
source citation
Title South Carolina Lidar, Quality Control Surveys, 16 Counties
publication Date
2008-01-31
cited responsible party
-
originator
organisation Name
ESP Associates, P.A. (ESP)
Resource extent
Temporal Extent
2008-01-21
2008-01-22
source
source description
Source Contribution: Countywide Orthophotos. The State of South Carolina, Department of Natural Resources provided digital
orthophotography covering the project area in support of this project. Source Type: external hard drive
source citation
Title Marion County, SC - Digital Orthophotography
publication Date
cited responsible party
-
originator
organisation Name
South Carolina Department of Natural Resources
Resource extent
Temporal Extent
2004-08-02
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description
The minimum expected horizontal accuracy was tested during the boresight process to meet or exceed the National Standard for
Spatial Data Accuracy (NSSDA). Horizontal accuracy is 1 meter RMSE or better.
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy Report
evaluation Method Description
94 high accuracy checkpoints were surveyed following FEMA Guidelines and Specifications for Flood Hazard Mapping Partners
Appendix A: Guidance for Aerial mapping and Surveying which is based on the NSSDA. Compared with the 0.363m specification
for vertical accuracy at the 95% confidence level, equivalent to 2-foot contours, the dataset passes by all methods of accuracy
assessment (tested by Dewberry): Tested 0.141 meter Fundamental Vertical Accuracy at 95 percent confidence level in open terrain
using RMSEz x 1.9600 (FEMA/NSSDA and NDEP/ASPRS methodologies); Tested .156 meter Consolidated Vertical Accuracy at 95th percentile
in all land cover categories combined (NDEP/ASPRS methodology); Tested 0.180 meter Supplemental Vertical Accuracy at 95th
percentile in Vegetated terrain (NDEP/ASPRS methodology); Tested 0.139 meter Supplemental Vertical Accuracy at 95th percentile
in Urban terrain (NDEP/ASPRS methodology).
Completeness Commission
evaluation Method Description
The bare earth surface will contain voids where insufficient energy was reflected from the surface to generate a valid return
from the terrain. Voids in the bare earth surface tend to occur in heavily vegetated areas, water bodies, and beneath buildings,
motor vehicles, bridges etc. Fresh or wet asphalt, wet sand and certain types of vegetation can also cause voids or anomalous
elevations.
ConceptualConsistency
measure Description
Compliance with the accuracy standard was ensured by the collection of GPS ground control during the acquisition of aerial
lidar and the establishment of a GPS base station operation airport. The following checks were performed. 1. The ground control
and airborne GPS data stream were validated through a fully analytical boresight adjustment. 2. The Lidar elevation data were
checked against the project control. 3. Lidar elevation data was validated through an inspection of edge matching and visual
inspection for quality (artifact removal).
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
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
distributor contact
-
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
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.
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 2013-06-05T15:38:14.271-06:00
notes: Last Metadata Review Date: 2011-11-19
Metadata contact
-
author
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