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Short Citation:
OCM Partners, 2022: 2010 ARRA Lidar: Bamberg County (SC), https://www.fisheries.noaa.gov/inport/item/49987.

Item Identification

Title: 2010 ARRA Lidar: Bamberg County (SC)
Short Name: sc2010_arra_bamberg_m4802_metadata
Status: Completed
Publication Date: 2011-05
Abstract:

Provide high density LiDAR elevation data map of Bamberg County, SC. Provide Bare Earth DEM (vegetation removal) of Bamberg County, SC.

Purpose:

This LIDAR operation was designed to provide a high density set of masspoints within the defined areas. The data sets are suitable for the development of contours for use in hydraulic/hydrologic model development, and for assessing environmental impacts.Typical uses for the data set include: FEMA Flood Plain Map Modernization. DFIRM map updates. Watersheds and other hydro studies per FEMA specifications. County Mapping projects which include several uses, in addition to Flood mitigation assessment. Mapping projects that include accuracy verification, reporting and meta data.

Notes:

10631

Supplemental Information:

The lidar report for this data set may be viewed at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4802/supplemental/sc2010_arra_bamberg_m4802_lidarreport.pdf

A footprint of this data set may be viewed in Google Earth at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4802/supplemental/sc2010_arra_bamberg_m4802.kmz

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None Surface
None Terrain

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Note:

None planned

Data Presentation Form: LAS
Entity Attribute Overview:

LAS 1.2

Entity Attribute Detail Citation:

See process steps within this metadata record for specific methodology

Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of Sanborn, SC DNR, USGS, NOAA, the Office for Coastal Management or its partners.

Support Roles

Data Steward

CC ID: 685925
Date Effective From: 2011-05
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: 685927
Date Effective From: 2011-05
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: 685928
Date Effective From: 2011-05
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: 685926
Date Effective From: 2011-05
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: 1136474
W° Bound: -81.22921876
E° Bound: -80.78753206
N° Bound: 33.4535381
S° Bound: 33.01389796

Extent Group 1 / Time Frame 1

CC ID: 1136473
Time Frame Type: Range
Start: 2010-03-15
End: 2010-03-20

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

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=4802

The data set is dynamically generated based on user-specified parameters;

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 Use Constraints:

This dataset is not valid without the signed and sealed copy of the Florida Minimum Technical Standards Report

of Specific Purpose Survey dated 4/31/2008. Please refer to this document for user constraints.

Distribution Information

Distribution 1

CC ID: 742458
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=4802
Distributor:
File Name: Customized Download
Description:

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

Distribution 2

CC ID: 742459
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4802/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 742461
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 742462
URL: https://coast.noaa.gov
URL Type:
Online Resource

URL 3

CC ID: 742463
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4802/supplemental/sc2010_arra_bamberg_m4802.kmz
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the lidar coverage for the 2010 ARRA lidar for Bamberg County, SC.

Activity Log

Activity Log 1

CC ID: 685944
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 685943
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: 718588
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 742460
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Data Quality

Accuracy:

The flight missions were typically four or five hours in duration including runway calibration flights flown at the beginning and the end of each mission. During the data collection, the operator recorded information on log sheets which includes weather conditions, LiDAR operation parameters, and flight line statistics. Near the end of the mission GPS ambiguities are again resolved by flying within ten kilometers of the base stations, to aid in post-processing.

Table 2 shows the planned LiDAR acquisition parameters with a flying height of 1600 meters above ground level (AGL) for the Optech system on a mission to mission basis.

Horizontal Positional Accuracy:

Federal Emergency Management Administration (FEMA) LiDAR Specifications; Quantitative Value: 1.00 meters, Test that produced the value: Processing accuracies and requirements

Vertical Positional Accuracy:

Federal Emergency Management Administration (FEMA) LiDAR Specifications; 15 cm RMSE. Tested 11.8 cm RMSEz.; Quantitative Value: 0.118 meters, Test that produced the value: Preliminary data processing was performed in the field immediately following the missions for quality control of GPS data and to ensure sufficient overlap between flight lines. Any problematic data could then be re-flown immediately as required. Final data processing was completed in the Colorado Springs office. The lidar data was evaluated using a collection of 10 NGS benchmarks. The lidar data was compared to each of these benchmarks yielding much better results than was required for the project.

Completeness Report:

Complete

Conceptual Consistency:

A minimum of two GPS base stations were set for the Bamberg County project, which is within the project area or within the required baseline specifications of the project.

Pre-flight checks such as cleaning the sensor head glass are performed. A four minute INS initialization is conducted on the ground, with the engines running, prior to flight, to establish fine-alignment of the INS. GPS ambiguities are resolved by flying within ten kilometers of the base stations.

Lineage

Process Steps

Process Step 1

CC ID: 1136467
Description:

Data Collection:

Using an Optech Light Detection And Ranging (LiDAR) system, 103 flight lines of standard density (1.4 meter ground sample distance) data were collected over areas in Bamberg, SC (approximately 395 square miles). Multiple returns were recorded for each laser pulse along with an intensity value for each return. The data acquisition occurred in 6 missions between March 14, 2010 , and March 20, 2010. During the LIDAR campaign, the LMSI field crew conducted a GPS field survey to establish final coordinates of the ground base stations for final processing of the base-remote GPS solutions

Process Date/Time: 2010-03-15 00:00:00

Process Step 2

CC ID: 1136468
Description:

Airborne GPS Processing:

Airborne GPS data was differentially processed and integrated with the post processed IMU data to derive a Smoothed Best Estimate of Trajectory (SBET). The SBET was used to reduce the LiDAR slant range measurements to a raw reflective surface for each flight line. The overlap between flight lines was removed to provide a homogeneous coverage, and the coverage was classified to extract a bare earth digital elevation model (DEM). Airborne GPS is differentially processed using the GrafNAV V7.50 software by Waypoint Consulting of Calgary, Alberta, Canada. The PDOP and distance separation is as follows: The classification and quality control (QC) of LiDAR data is carried out using TerraScan software by Terrasolid Limited of Helsinki, Finland.

Process Date/Time: 2010-04-01 00:00:00

Process Step 3

CC ID: 1136469
Description:

IMU data Processing:

IMU data provides information concerning roll, pitch and yaw of collection platform during collection event. IMU information allows the pulse vector to be properly placed in 3D space allowing the distance from the aircraft reference point to be properly positioned on the elevation model surface. The IMU data is processed using the PosPac V4.2 software by Applanix Corporation of Richmond Hill, Ontario, Canada. The reflective surface is derived using the ALS Post Processor software by Leica Geosystems GIS & Mapping Division of Atlanta, Georgia.

Process Date/Time: 2010-04-01 00:00:00

Process Step 4

CC ID: 1136470
Description:

LIDAR Point Classification:

The classification and quality control (QC) of LiDAR data is carried out using TerraScan software by Terrasolid Limited of Helsinki, Finland.

Process Date/Time: 2010-05-01 00:00:00

Process Step 5

CC ID: 1136471
Description:

The NOAA Office for Coastal Management (OCM) received the files in laz format from USGS via an FTP online repository. The files contained lidar elevation and intensity measurements. The data were in State Plane Zone 3900 (South Carolina, NAD83) in feet, NAVD88 (orthometric) heights in feet. OCM performed the following processing for data storage and Digital Coast provisioning purposes:

1. The LAS files were converted from SPCS coordinates to geographic coordinates.

2. Erroneous elevations were removed.

3. The LAS files were converted from NAVD88 (orthometric) heights in meters to GRS80 (ellipsoid) heights in meters using Geoid 03.

4. The LAS data were sorted by latitude and the headers were updated.

Process Date/Time: 2015-04-17 00:00:00

Catalog Details

Catalog Item ID: 49987
GUID: gov.noaa.nmfs.inport:49987
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:23+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2022-03-16
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