2013 GA DNR Lidar DEM: Barrow, Clarke, Madison, and Oglethorpe Counties, GA
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:58128 | Updated: January 10, 2024 | Published / External
Summary
Short Citation
OCM Partners, 2024: 2013 GA DNR Lidar DEM: Barrow, Clarke, Madison, and Oglethorpe Counties, GA, https://www.fisheries.noaa.gov/inport/item/58128.
Full Citation Examples
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 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.
Distribution Information
-
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
-
GeoTIFF
Simple download of data files.
None
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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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.
Controlled Theme Keywords
DIGITAL ELEVATION/TERRAIN MODEL (DEM), elevation
Child Items
No Child Items for this record.
Contact Information
Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Extents
-83.880586° W,
-82.767975° E,
34.283061° N,
33.680598° S
2013-01-22 - 2013-02-15
Item Identification
Title: | 2013 GA DNR Lidar DEM: Barrow, Clarke, Madison, and Oglethorpe Counties, GA |
---|---|
Short Name: | 2013 GA Barrow, Clarke, Madison, Oglethorpe m8917 |
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 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 |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)
|
ISO 19115 Topic Category |
elevation
|
Spatial Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GEORGIA
|
Instrument Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Instrument Keywords |
LIDAR > Light Detection and Ranging
|
Physical Location
Organization: | Office for Coastal Management |
---|---|
City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
---|---|
Maintenance Frequency: | As Needed |
Data Presentation Form: | map digital |
Entity Attribute Overview: |
Lidar based DEM in floating point GeoTIFF 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. |
Support Roles
Data Steward
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
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
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
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 |
Extents
Currentness Reference: | Ground Condition |
---|
Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -83.880586 | |
---|---|---|
E° Bound: | -82.767975 | |
N° Bound: | 34.283061 | |
S° Bound: | 33.680598 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
---|---|
Start: | 2013-01-22 |
End: | 2013-02-15 |
Spatial Information
Spatial Resolution
Horizontal Distance: | 4.0 Foot |
---|
Spatial Representation
Representations Used
Grid: | Yes |
---|---|
Vector: | No |
Reference Systems
Reference System 1
Coordinate Reference System |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Reference System 2
Coordinate Reference System |
|||||||||||||||||||||||
|
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=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 Information
Distribution 1
Start Date: | 2019-11-01 |
---|---|
End Date: | Present |
Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8917 |
Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2014-02 - Present) |
File Name: | Customized Download |
Description: |
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. |
File Type (Deprecated): | Zip |
Compression: | Zip |
Distribution 2
Start Date: | 2019-11-01 |
---|---|
End Date: | Present |
Download URL: | https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/GA_Barrow_Clarke_Madison_Oglethorpe_2013_8917/index.html |
Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2014-02 - Present) |
File Name: | Bulk Download |
Description: |
Simple download of data files. |
File Date/Time: | 2019-11-01 00:00:00 |
File Type (Deprecated): | GeoTIFF |
Distribution Format: | GeoTIFF |
URLs
URL 1
URL: | https://coast.noaa.gov/dataviewer |
---|---|
Name: | Digital Coast Data Access Viewer |
URL Type: |
Online Resource
|
URL 2
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12a/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. |
URL 3
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12a/2617/supplemental/ |
---|---|
Name: | Supplemental information |
URL Type: |
Online Resource
|
File Resource Format: | zip |
Description: |
Directory with supplemental zip files for the breaklines, flightlines, and ground control. |
Activity Log
Activity Log 1
Activity Date/Time: | 2016-05-23 |
---|---|
Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
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
Activity Date/Time: | 2018-02-08 |
---|---|
Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
Activity Date/Time: | 2018-03-13 |
---|---|
Description: |
Partial upload to move data access links to Distribution Info. |
Technical Environment
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 |
---|
Data Quality
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. |
Lineage
Lineage Statement: |
Data were collected and processed by PhotoScience under contract from NOAA Office for Coastal Management. NOAA made the data available for distribution after validating the data. |
---|
Sources
LiDAR
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
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
Description: |
The NOAA Office for Coastal Management (OCM) received the topographic DEM files in ERDAS imagine format from Photo Science. 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 are feet. Files were converted to GeoTIFF format for ingest into the Digital Coast Data Access Viewer and to provide the data in an open format. |
---|---|
Process Date/Time: | 2019-11-01 00:00:00 |
Process Contact: | NOAA Office for Coastal Management (NOAA/OCM) |
Phone (Voice): | (843) 740-1202 |
Email Address: | coastal.info@noaa.gov |
Source: | LiDAR |
Catalog Details
Catalog Item ID: | 58128 |
---|---|
GUID: | gov.noaa.nmfs.inport:58128 |
Metadata Record Created By: | Kirk Waters |
Metadata Record Created: | 2019-11-01 08:32+0000 |
Metadata Record Last Modified By: | Kirk Waters |
Metadata Record Last Modified: | 2024-01-10 19:09+0000 |
Metadata Record Published: | 2024-01-10 |
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 |