Short Citation
OCM Partners, 2024: 2013 Georgia Department of Natural Resources (GADNR) Topographic Lidar: Barrow, Clarke, Madison and Oglethorpe Counties, https://www.fisheries.noaa.gov/inport/item/49732.
Full Citation Examples

Abstract

NOAA Contract: EA133C11CQ0009

NOAA Task Order Number: T0013

The PS FY13 GA DNR Elevation Data Task Order involves collecting and delivering topographic elevation point data derived from multiple return light detection and ranging (LiDAR) measurements in 4 counties in Georgia. The Statement of Work (SOW) was developed by the National Oceanic and Atmospheric Administration's (NOAA) Office for Coastal Management (referred to as the Center) in partnership with the Georgia Department of Natural Resources (GADNR) Environmental Protection Division (EPD). The counties included are Barrow,Clarke, Madison and Oglethorpe. The data collected for these 4 counties will exhibit Hydro Flattened DEMs for inclusion into the National Elevation Dataset (NED). The purpose of the data is for use in coastal management decision making, including applications such as floodplain mapping and water rights management.

LiDAR was collected at 1.0 points per square meter (1.0m GSD) for Barrow, Clarke, Madison and Oglethorpe Counties.This area was flown during snow free and leaf-off conditions.

Customized Download

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

Simple download of data files.

Access Constraints:

None

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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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.

elevation

No Child Items for this record.

Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Geographic Area 1

-83.880586° W, -82.767975° E, 34.283061° N, 33.680598° S

Time Frame 1
2013-01-22 - 2013-02-15

Title:	2013 Georgia Department of Natural Resources (GADNR) Topographic Lidar: Barrow, Clarke, Madison and Oglethorpe Counties
Short Name:	ga2013_gadnr_barrowclarkemadisonoglethorpe_m2617_metadata
Status:	Completed
Publication Date:	2014-02
Abstract:	NOAA Contract: EA133C11CQ0009 NOAA Task Order Number: T0013 The PS FY13 GA DNR Elevation Data Task Order involves collecting and delivering topographic elevation point data derived from multiple return light detection and ranging (LiDAR) measurements in 4 counties in Georgia. The Statement of Work (SOW) was developed by the National Oceanic and Atmospheric Administration's (NOAA) Office for Coastal Management (referred to as the Center) in partnership with the Georgia Department of Natural Resources (GADNR) Environmental Protection Division (EPD). The counties included are Barrow,Clarke, Madison and Oglethorpe. The data collected for these 4 counties will exhibit Hydro Flattened DEMs for inclusion into the National Elevation Dataset (NED). The purpose of the data is for use in coastal management decision making, including applications such as floodplain mapping and water rights management. LiDAR was collected at 1.0 points per square meter (1.0m GSD) for Barrow, Clarke, Madison and Oglethorpe Counties.This area was flown during snow free and leaf-off conditions.
Purpose:	Lifts are planned to meet project specifications and are flown under cloud-free conditions in order to collect LIDAR points at an average of 1.0 meter point spacing.This allows the user to create Intensity Images, Break Lines, Hydro Flattened DEMs and fully Classified LiDAR LAS files.
Notes:	10377
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/geoid18/2617/supplemental/ga2013_gadnr_barrow_clarke_madison_oglethorpe_m2617.kmz

Theme Keywords

Thesaurus

Keyword

ISO 19115 Topic Category

elevation

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

Data Set Scope Code:	Data Set
Maintenance Frequency:	As Needed
Data Presentation Form:	las
Entity Attribute Overview:	LiDAR points in LAZ format
Entity Attribute Detail Citation:	none
Distribution Liability:	Any conclusions drawn from the analysis of this information are not the responsibility of Photo Science, GADNR, NOAA, the Office for Coastal Management or its partners.
Data Set Credit:	Photo Science, Inc. acquired and post-processed the LiDAR for Barrow, Clarke, Madison and Oglethorpe Counties.

Data Steward

CC ID: 674562

Date Effective From:	2014-02
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: 674564

Date Effective From:	2014-02
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: 674565

Date Effective From:	2014-02
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: 674563

Date Effective From:	2014-02
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

Currentness Reference:	Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1135119

W° Bound:	-83.880586
E° Bound:	-82.767975
N° Bound:	34.283061
S° Bound:	33.680598

Extent Group 1 / Time Frame 1

CC ID: 1135118

Time Frame Type:	Range
Start:	2013-01-22
End:	2013-02-15

Spatial Representation

Representations Used

Vector:	Yes

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=2617;
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.

Distribution 1

CC ID: 741019

Download URL:	https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2617
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: 741020

Download URL:	https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2617/index.html
Distributor:
File Name:	Bulk Download
Description:	Simple download of data files.

URL 1

CC ID: 741022

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

URL 2

CC ID: 741023

URL:	https://coast.noaa.gov
URL Type:	Online Resource

URL 3

CC ID: 741024

URL:	https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2617/supplemental/ga2013_gadnr_barrow_clarke_madison_oglethorpe_m2617.kmz
Name:	Browse Graphic
URL Type:	Browse Graphic
File Resource Format:	kmz
Description:	This graphic shows the lidar coverage for Barrow, Clarke, Madison and Oglethorpe Counties in Georgia.

Activity Log 1

CC ID: 674583

Activity Date/Time:	2016-05-23
Description:	Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 674582

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: 718289

Activity Date/Time:	2018-02-08
Description:	Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 741021

Activity Date/Time:	2018-03-13
Description:	Partial upload to move data access links to Distribution Info.

Description:	MicroStation Version 8; TerraScan Version 13; TerraModeler Version 13; GeoCue Version 2012.1.27.5; ESRI ArcGIS 10.1;Global Mapper Version 14.1; ALS Post Processor 2.75 Build #25; DashMap Version 5.2000; Windows 7 Operating System

Accuracy:	The project area requires LiDAR to be collected on average of 1.0 meter point spacing or better and vertical accuracy of 15.0 centimeters RMSE or better to support 2' contour generation when combined with breaklines.
Horizontal Positional Accuracy:	The LiDAR data was compiled to meet a 1 meter horizontal accuracy. The calibration of the LiDAR sensor itself and the calibration process of the data produced by this sensor ensure that this accuracy is met.; Quantitative Value: 1.0 meters, Test that produced the value: Value stated in meters
Vertical Positional Accuracy:	The classified LiDAR data was tested by Photo Science, Inc. for vertical accuracy. Photo Science collected a total of 51 ground control points for use in verifying the vertical accuracy of the classified LiDAR data in Barrow, Clarke, Madison and Oglethorpe Counties. These points were tested against the classified LiDAR data and a vertical adjustment was made to the classified LiDAR for each county in order to obtain a higher level of accuracy. All data are seamless from one tile to the next, no gaps or no data areas. The vertical unit of the data file is in meters.; Quantitative Value: 0.06 meters, Test that produced the value: RMSE in meters of classified LiDAR
Completeness Report:	Datasets contain complete coverage of tiles.
Conceptual Consistency:	Deliverables were tested by Photo Science, Inc. for vertical accuracy. All data are seamless from one tile to the next, no gaps or no data areas.

Sources

LiDAR

CC ID: 1135114

Publish Date:	2013-01-01
Extent Type:	Range
Extent Start Date/Time:	2013-01-22
Extent End Date/Time:	2013-02-15
Source Contribution:	LiDAR points were used to produce the deliverables. \| Source Geospatial Form: digital data \| Type of Source Media: Hard Drive

Process Steps

Process Step 1

CC ID: 1135115

Description:

Applanix software was used in the post processing of the airborne GPS and inertial data that is critical to the positioning and the orientation of the sensor during all flights. POSPac MMS provides the smoothed best estimate of trajectory (SBET) that is necessary for Optech's post processor to develop the point cloud from the LiDAR missions. The point cloud is the mathematical three dimensional collection of all returns from all laser pulses as determined from the aerial mission. At this point this data is ready for analysis, classification, and filtering to generate a bare earth surface model in which the above ground features are removed from the data set.The point cloud was manipulated within the Optech or Leica software; GeoCue,TerraScan, and TerraModeler software was used for the automated data classification, manual cleanup, and bare earth generation from this data. Project specific macros were used to classify the ground and to remove the side overlap between parallel flight lines.

All data was manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler.

Class 2 LIDAR was used to create a bare earth surface model. The surface model was then used to heads-up digitize 2D breaklines of inland streams and rivers. Inland Ponds and Lakes of 2 acres or greater were also collected.

Elevation values were assigned to all Inland Ponds and Lakes using TerraModeler functionality.

Elevation values were assigned to all Inland Streams and Rivers using Photo Science proprietary software.

All Class 2 LIDAR data falling inside of the collected breaklines were then classified to Class 9 and Class 2 LIDAR data falling within a proximity of three feet will be classified to Class 10 using TerraScan macro functionality.

The breakline files were translated to ESRI Shapefile format using ESRI conversion tools.

Data was then run through additional macros to ensure deliverable classification levels matching LAS ASPRS Classification structure. GeoCue functionality was used to ensure correct LAS Version. In house software was used as a final QA/QC check to provide LAS Analysis of the delivered tiles.

Tiles were run through automated scripting within ArcMap and were combined with the Hydro Flattened Breaklines to create the 4' DEM. Final DEM tiles were clipped to the tile boundary in order to provide a seamless dataset.

A manual QA review of the tiles was completed in ArcMap and Global Mapper to ensure full coverage with no gaps or slivers within the project area.

Process Date/Time:

2013-01-01 00:00:00

Process Step 2

CC ID: 1135116

Description:

The NOAA Office for Coastal Management (OCM) received the topographic lidar files in LAS format from Photo Science. The files contained lidar elevation measurements and additional information. The data for Barrow and Clarke Counties were received in Georgia State Plane West Zone 1002, NAD83 coordinates. The data for Madison and Oglethorpe were received in Georgia State Plane East Zone 1001, NAD83 coordinates. Both sets of data were vertically referenced to NAVD88 using the Geoid09 model. The vertical units of the data were feet. OCM performed the following processing for data storage and Digital Coast provisioning purposes:1. The topographic las files were converted from orthometric (NAVD88) heights to ellipsoidal heights using Geoid09.2. The topographic las files were converted from a Projected Coordinate System (State Plane) to a Geographic Coordinate System (NAD83).3. The topographic las files' vertical units were converted from feet to meters.4. The topographic las files' horizontal units were converted from feet to decimal degrees.

Process Date/Time:

2014-01-01 00:00:00

Catalog Item ID:	49732
GUID:	gov.noaa.nmfs.inport:49732
Metadata Record Created By:	Anne Ball
Metadata Record Created:	2017-11-15 15:21+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

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