Horry County South Carolina Orthophotography
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:49490 | Updated: January 11, 2024 | Published / External
Summary
Short Citation
OCM Partners, 2025: Horry County South Carolina Orthophotography, https://www.fisheries.noaa.gov/inport/item/49490.
Full Citation Examples
Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophoto is a 15cm GSD resolution with tiles measuring 1500 x 1500 meters cast on the Universal Transverse Mercator Zone 17N on the North American Datum of 1983 (NAD83/2007). The aerial photography used to create the digital images was acquired between February 16th and March 8th, 2010.
Distribution Information
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Create custom data files by choosing area, map projection, file format, etc.
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GeoTIFF
Downloadable Data
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Simple download of data files.
All orthophotography is the property of the USGS and Horry County
Orthophotography is the property of the USGS, and Horry County, SC. Orthophotography is the intellectual property of the USGS, and Horry County, SC.
Controlled Theme Keywords
imageryBaseMapsEarthCover
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
-79.317294806° W,
-78.524434796° E,
34.30798878° N,
33.57605894° S
2010
Item Identification
Title: | Horry County South Carolina Orthophotography |
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Short Name: | 2010_usgs_horry |
Status: | Completed |
Publication Date: | 2011-05-26 |
Abstract: |
Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophoto is a 15cm GSD resolution with tiles measuring 1500 x 1500 meters cast on the Universal Transverse Mercator Zone 17N on the North American Datum of 1983 (NAD83/2007). The aerial photography used to create the digital images was acquired between February 16th and March 8th, 2010. |
Purpose: |
The orthophotography was created for use by the USGS, and Horry County South Carolina. |
Notes: |
11936 |
Keywords
Theme Keywords
Thesaurus | Keyword |
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ISO 19115 Topic Category |
imageryBaseMapsEarthCover
|
UNCONTROLLED | |
None | 3 band orthophoto |
None | image map |
None | orthoimage |
None | orthophoto |
None | rectified image |
None | rectified photograph |
None | Remotely Sensed Imagery/Photography |
Spatial Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard (FIPS) 5-2): Washington, D.C., National | SC |
U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-4): Washington, D.C., National Institute of Standards and Techno | US |
Physical Location
Organization: | Office for Coastal Management |
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City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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Maintenance Frequency: | Unknown |
Data Presentation Form: | remote sensing image |
Distribution Liability: |
Users must assume responsibility to determine the usability of these data. These photographs were obtained for use by NGS during the course of its development of potential final products to fulfill its statutory mission. Although NGS is making these photographs available to others who may find the photographs of value, NGS does not warrant, endorse, or recommend the use of these photographs for any given purpose. NGS is providing these photographs "as is," and NGS disclaims any and all warranties, whether expressed or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. In no event will NGS be liable to you or any third party for any direct, indirect, incidental, consequential, special, or exemplary damages or lost profits resulting from any use or misuse of these data. |
Data Set Credit: | Fugro Earthdata, Inc. |
Support Roles
Data Steward
Date Effective From: | 2011-05-26 |
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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: | 2011-05-26 |
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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: | 2011-05-26 |
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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: | 2011-05-26 |
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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 |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -79.317294806 | |
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E° Bound: | -78.524434796 | |
N° Bound: | 34.30798878 | |
S° Bound: | 33.57605894 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Discrete |
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Start: | 2010 |
Access Information
Security Class: | Unclassified |
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Data Access Constraints: |
All orthophotography is the property of the USGS and Horry County |
Data Use Constraints: |
Orthophotography is the property of the USGS, and Horry County, SC. Orthophotography is the intellectual property of the USGS, and Horry County, SC. |
Distribution Information
Distribution 1
Download URL: | https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=443 |
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Distributor: | |
File Name: | Customized Download |
Description: |
Create custom data files by choosing area, map projection, file format, etc. |
Distribution 2
Download URL: | https://coast.noaa.gov/digitalcoast |
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Distributor: | |
Description: |
Downloadable Data |
File Type (Deprecated): | GeoTIFF |
Distribution Format: | GeoTIFF |
Distribution 3
Download URL: | https://coastalimagery.blob.core.windows.net/digitalcoast/HorrySC_2010_443/index.html |
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Distributor: | |
File Name: | Bulk Download |
Description: |
Simple download of data files. |
URLs
URL 1
URL: | https://coast.noaa.gov/digitalcoast |
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URL Type: |
Online Resource
|
Activity Log
Activity Log 1
Activity Date/Time: | 2016-05-23 |
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Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-11-14 |
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Description: |
Converted from FGDC Content Standard 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 |
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Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
Activity Date/Time: | 2018-03-13 |
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Description: |
Partial upload to move data access links to Distribution Info. |
Technical Environment
Description: |
The following software is used for validation of the imagery and surface modeling 1. Aerotriangulation - Pendulum Software 2. Digital Orthophotography - Pendulum Software 3. Bentley - MicroStation 4. Pixel Factory 5. ZI - OrthoPro 6. ESRI - ArcInfo 7. ERDAS Imagine 8. TerraScan 9. Earthdata Proprietary software 10. Adobe - Photoshop |
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Data Quality
Accuracy: |
The orthophotos were created to be fully compliant with a horizontal positional accuracy shall not exceed 1 meter tested to NSSDA Standards (95% confidence). |
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Horizontal Positional Accuracy: |
The orthophotos were created to be fully compliant with a horizontal positional accuracy shall not exceed 1 meter tested to NSSDA Standards (95% confidence). |
Completeness Report: |
The following methods are used to assure imagery accuracy. 1. Use of ground control network utilizing GPS techniques. 2. Use of airborne GPS (global positioning system) inconjunction with the acquisition of imagery. The following software is used for validation of the imagery and surface modeling. 3. Aerotriangulation - Pendulum Software 4. Digital Orthophotography - Pendulum Software, Pixel Factory and Photoshop. 5. Bentley - MicroStation 6. Pixel Factory 7. ESRI - ArcGIS 8. Earthdata proprietary software 9. Adobe - Photoshop |
Conceptual Consistency: |
Compliance with the accuracy standard was ensured by the collection of photo identifiable GPS ground control after the acquisition of aerial imagery. The following checks were performed. 1. The ground control and airborne GPS data stream were validated through a fully analytical bundle aerotriangulation adjustment. The RMSE is less than 1, 10,000th of the flying height. 2. The lidar data were checked against the project control. The technician visited and confirmed the accuracy of the points during initial processing. 3. Digital orthophotography was validated through an inspection of edge matching and visual inspection for image quality. |
Lineage
Sources
Ground Control
Publish Date: | 2010-01-01 |
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Extent Type: | Range |
Extent Start Date/Time: | 2010-02-01 |
Extent End Date/Time: | 2010-02-15 |
Source Contribution: |
TerraSurv was contracted by the Fugro EarthData to acquire 16 ground control points during the acquisition of aerial imagery. The ground control points were established using GPS for vertical and horizontal coordinate values. NAD83(NSRS2007)South Carolina Stateplane NAVD 88 International Feet. | Type of Source Media: external hard drive |
Lidar Surface
Publish Date: | 2006-01-01 |
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Extent Type: | Discrete |
Extent Start Date/Time: | 2006 |
Source Contribution: |
In 2006 Sanborn flew lidar data over Horry County South Carolina. The data produced from that project was utilized as the surface for orthorectification. | Type of Source Media: external hard drive |
South Carolina raw PanoramiX data
Publish Date: | 2010-01-01 |
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Extent Type: | Discrete |
Extent Start Date/Time: | 2010 |
Scale Denominator: | 1200 |
Source Contribution: |
The aerial imagery acquisition for Horry County was flown to support the creation of digital orthophotography with a 15cm pixel. The imagery was acquired on February 16th, 17th, 18th, 19th, 20th, 21st, 26th, March 5th, 6th, and 8th, 2010. There were fourteen sorties and 104 flight lines. All imagery was collected using the PanoramiX digital sensor. | Type of Source Media: not made available |
Process Steps
Process Step 1
Description: |
The Digital Orthoimagery is comprised of 8 bit color imagery captured by the PanoramiX camera. Using the Preprocessor software, data was unpacked and indexed. A QA/QC process was performed to ensure integrity of the raw data. An automated radiometric calibration was performed as an initial adjustment to aid in creating consistent imagery. GPS data captured during flight was processed and integrated into the project, after which a block solution was calculated in the Dataviewer software. A QA/QC process was performed on this solution to identify any anomalies. This was done by reconstructing various points in the solution. Ground Control was imported into the Dataviewer software and measured in order to refine the solution. The surface model from the 2009 Horry County project, with some updated areas, was imported into the Dataviewer software. The imagery was then rectified for each flight line using the refined block solution and the imported surface model. A QA/QC process was performed to check for any rectification errors. The rectified imagery was exported from the Dataviewer software along with a reduced resolution mosaic, or Quicklook, of each of these imagery strips. The quicklooks were radiometrically adjusted using Earthdata Proprietry software and then imported into the Pixel Factory software along with the full resolution mosaic flight lines. The histogram from the quicklook was applied to the full resolution imagery. Mosaic lines were placed, joining the imagery strips. In initial QA/QC was performed by the technician to ensure that the mosaic lines were appropriately placed and that there was appropriate imagery coverage. The final imagery data set was removed from the Pixel Factory environment in a process called "packaging" where the individual tiles are created. The created tiles are reviewed again for anomalies and interactive radiometric adjustment applied where needed. QA/QC was performed looking for anomalies, smears and other indications of problems within the digital orthophoto creation process, interactive radiometric adjustment applied where needed. Two additional radiometric adjustments are applied to the completed orthos in Adobe Photoshop. The first is a sharpening mask filter; this filter is used to help increase sharpness of a digital image. The basis for this filter is to locate pixels that differ in value from surrounding pixels by the threshold specified. It then increases the pixels contrast by the value identified. For neighboring pixels specified by the threshold, the lighter pixels get even lighter and the darker pixels get even darker based on the specified amount. The changes made maintained the integrity of the original histogram curve. The imagery is then Projected to the appropriate co-ordinate system and recut to the tiling scheme required for delivery. The final digital ortho product was GEOTIFF files. All data was delivered on external hard drives. |
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Process Date/Time: | 2010-10-01 00:00:00 |
Catalog Details
Catalog Item ID: | 49490 |
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GUID: | gov.noaa.nmfs.inport:49490 |
Metadata Record Created By: | Anne Ball |
Metadata Record Created: | 2017-11-15 15:15+0000 |
Metadata Record Last Modified By: | Kirk Waters |
Metadata Record Last Modified: | 2024-01-11 11:54+0000 |
Metadata Record Published: | 2024-01-11 |
Owner Org: | OCMP |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2018-03-13 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2019-03-13 |