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Short Citation:
Office for Coastal Management, 2023: 2014 Mobile County, AL DMC 4-Band 8 Bit Imagery, https://www.fisheries.noaa.gov/inport/item/48405.

Item Identification

Title: 2014 Mobile County, AL DMC 4-Band 8 Bit Imagery
Short Name: 2014_mobile_al
Status: Completed
Publication Date: 2015-09-18
Abstract:

This dataset was developed to support Mobile County. The project area is 1402 square miles of Mobile County land. The scope of work involved data acquisition and processing, and the development of digital color orthophotography at 0.5 foot pixel resolution, meeting ASPRS Class II Standards for 1"=100' scale mapping for the entire project area.

Original contact information:

Contact Name: Scott Kearney

Contact Org: City of Mobile

Title: GIS Manager

Phone: (251) 208-7942

Email: kearney@cityofmobile.org

Purpose:

Mobile County, Alabama requires efficient data to effectively plan and manage county infrastructure. This dataset was developed to support Mobile County. The project area is 1402 square miles of Mobile County land. The scope of work involved data acquisition and processing, and the development of digital color orthophotography at 0.5 foot pixel resolution, meeting ASPRS Class II Standards for 1"=100' scale mapping for the entire project area. The final data will be used for planimetric updates in Mobile County, AL.

Notes:

11360

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED IMAGERY
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE IMAGERY
UNCONTROLLED
Global Change Master Directory (GCMD) Instrument Keywords Earth Remote Sensing Instruments > Passive Remote Sensing > Photon/Optical Detectors > Cameras > CAMERAS
Global Change Master Directory (GCMD) Platform Keywords Aircraft > AIRCRAFT
ISO 19115 Topic Category imageryBaseMapsEarthCover
None 4-band
None Digital Color Orthophotography
None GeoTIFF
None Mosaic
None Ortho-rectified Imagery

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALABAMA
UNCONTROLLED
None Alabama
None Mobile County

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: Image (digital)
Entity Attribute Overview:

Mobile County Digital Color Orthophotography

Entity Attribute Detail Citation:

Mobile County

Distribution Liability:

The data represented is the result of data collection and processing per contract specifications and indicates the general existing conditions at the time of the data collection. As such, it is only valid for its intended use, content, time, and accuracy specifications. The user is responsible for the results of any application of the data for other than its intended purpose.

Data Set Credit: Chris Cannon, Production Manager (Atlantic), James L. Taylor, Project Manager (Atlantic), Jochen A. Floesser, PMP, PG GISP- Senior Vice President (Atlantic), Brian Mayfield, CP, GISP, SP,GIS-President & Chief Operations Officer (Atlantic), Scott Kearney, GIS Manager (City of Mobile)

Support Roles

Data Steward

CC ID: 633457
Date Effective From: 2015-09-18
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: 633459
Date Effective From: 2015-09-18
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: 633460
Date Effective From: 2015-09-18
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: 633458
Date Effective From: 2015-09-18
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: 633463
W° Bound: -88.441916
E° Bound: -87.919427
N° Bound: 31.203599
S° Bound: 30.194669

Extent Group 1 / Time Frame 1

CC ID: 633462
Time Frame Type: Discrete
Start: 2014-09-09 12:00+0000

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Grid Representation 1

CC ID: 633449
Dimension Count: 3
Cell Geometry: Point
Transformation Parameters Available?: No

Axis Dimension 1

Dimension Type: Row
Size: 11194

Axis Dimension 2

Dimension Type: Column
Size: 11387

Axis Dimension 3

Dimension Type: Vertical
Size: 1

Access Information

Security Class: Unclassified
Data Access Constraints:

Data are to be used by Mobile County personnel only unless a written request to the County POC has been approved.

Data Use Constraints:

Users must abide by the terms of the non-disclosure agreement or the data sharing agreement under which the geospatial data were obtained.

Distribution Information

Distribution 1

CC ID: 633464
Download URL: https://coast.noaa.gov/dataregistry/
Distributor:
Description:

This dataset is a Digital Color Orthophotography, developed for Mobile County, Alabama.

File Type: Erdas Imagine (.img) and TIFF / BigTIFF / GeoTIFF (.tif)

Distribution 2

CC ID: 744423
Download URL: https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=4959
Distributor:
File Name: Customized Download
Description:

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

Distribution 3

CC ID: 744424
Download URL: https://coast.noaa.gov/htdata/raster2/imagery/MobileAL_2014_4959
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

Activity Log

Activity Log 1

CC ID: 633479
Activity Date/Time: 2017-01-05
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 633478
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC CSDGM (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 717176
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 744425
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Technical Environment

Description:

Microsoft Windows Office 2003 Service Pack 3; ESRI ArcCatalog 10.1

Data Quality

Accuracy:

Image Station Raster Utility - Display Header application was used to validate file format parameters such as:

4-band, 8-bits per band (RGBI), and pixel readout starts in northwest corner as (0,0).

Horizontal Positional Accuracy:

Horizontal Accuracy Report: Thirty-three (33) control point positions were compared in the ortho-imagery to their surveyed positions. The RMS for the control points were 0.274-foot and 0.259-foot for X and Y respectively. Tested 0.652-feet horizontal accuracy at 95% confidence level using the formula Accuracy(r) = ~2.4477 * 0.5 * (RMSE(x) + RMSE(x)).

Completeness Measure:

Cloud Cover: 0

Completeness Report:

Mobile County Project Area

Conceptual Consistency:

Topological integrity of the data was validated using the validation tools in ESRI's ArcGIS 10.1.

Lineage

Sources

Mobile County Digital Color Orthophotography

CC ID: 633443
Contact Name: Atlantic
Publish Date: 2014-09-09
Extent Type: Discrete
Extent Start Date/Time: 2014-09-09
Source Contribution:

Unknown | Source Geospatial Form: remote-sensing image | Type of Source Media: Unknown

Process Steps

Process Step 1

CC ID: 633444
Description:

Ground Control Survey: A survey was performed to support the acquisition of digital Orthophotography at 0.5 foot pixel resolution meeting ASPRS Class II Standards for 1"=100' scale mapping, for Mobile County, Alabama. The ortho control network involved a total of 33 control points.. The points were a combination of either "chevron style" vinyl material, 2'x10' dimension or existing photo identification points (PID). All field survey observations were conducted between March 20, 2014 and May 26, 2014 using Leica SR530 Dual Frequency GPS equipment.

Process Date/Time: 2014-05-02 00:00:00

Process Step 2

CC ID: 633445
Description:

Aerial Photography Acquisition: Aerial photography was acquired, in six (6) missions, using an Intergraph DMC at an altitude of 4154.034' AGL to support 0.5-foot pixel resolution color digital orthophotography. Airborne GPS and IMU data was collected during the photography acquisition and supported by CORS GPS- stations. Data acquisition was completed between 13th March through 25th March, 2014.

Process Date/Time: 2014-03-25 00:00:00

Process Step 3

CC ID: 633446
Description:

Aerial Triangulation: The imagery was triangulated using Intergraph's ISAT. The EOs were processed and verified in stereo. Final adjustments were verified and checked against the surveyed aerial controls and were within minimum accuracy requirements for this project (see AT Report).

Process Date/Time: 2014-06-11 00:00:00

Process Step 4

CC ID: 633447
Description:

Digital Color Orthophotography: Image Station Ortho-Pro (Version6.1) & SimActive's Correlator3D software were used to rectify and mosaic the data. Following the initial generation of the orthophoto tiles, they were visually inspected and corrected where necessary before being saved out as the final orthophoto deliverable tiles.

Process Date/Time: 2014-08-30 00:00:00

Catalog Details

Catalog Item ID: 48405
GUID: gov.noaa.nmfs.inport:48405
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 14:46+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2018-03-13
Owner Org: OCM
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