gov.noaa.nmfs.inport:49414
eng
UTF8
dataset
OCM Partners
resourceProvider
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
2024-02-29T00:00:00
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
3
row
3000
column
3000
point
0
EPSG::6360
EPSG::9749
2014 Mobile County, AL Bare Earth DEM
al2014_mobile_dem_m5169_metadata
2016-12-15
publication
NOAA/NMFS/EDM
49414
https://www.fisheries.noaa.gov/inport/item/49414
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Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
https://coast.noaa.gov/dataviewer
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Citation URL
Online Resource
download
https://coast.noaa.gov
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Citation URL
Online Resource
download
imageDigital
Atlantic was contracted to acquire high resolution topographic lidar (Light Detection and Ranging) data located in Mobile County, Alabama. The intent was to collect one (1) Area of Interest (AOI) that encompasses Mobile County. The total client defined AOI was 1,402 square miles or 3,361 square kilometers. Digital Elevation Models (DEMs) created from the lidar data
Original contact information:
Contact Name: Scott Kearney
Contact Org: City of Mobile
Phone: (251) 208-7942
Email: kearney@cityofmobile.org
Mobile County, Alabama requires efficient data to effectively plan and manage county infrastructure. This dataset was developed to support Mobile County. The scope involved the acquisition of USGS Quality Level 2 LiDAR data to be processed, classified to produce a new countywide DEM and one foot elevation contours for the entire 1402 square mile Mobile County Project Area.
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)
completed
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
custodian
asNeeded
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/4966/supplemental/al2014_mobile_county_m4966.kmz
This graphic shows the lidar coverage in Mobile County Alabama from the 2014 collection.
kmz
Mobile County, AL
place
Mobile
Alabama
Mobile County
theme
DEMs - partner (no harvest)
project
InPort
otherRestrictions
Cite As: OCM Partners, [Date of Access]: 2014 Mobile County, AL Bare Earth DEM [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49414.
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
otherRestrictions
Access Constraints: None
otherRestrictions
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.
otherRestrictions
Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of Atlantic, City and County of Mobile, NOAA, the Office for Coastal Management or its partners.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
49414
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/49414.pdf
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NOAA Data Management Plan (DMP)
NOAA Data Management Plan for this record on InPort.
information
crossReference
grid
2
eng; US
elevation
-88.441916
-87.919427
30.194669
31.203599
GeoTIFF
Zip
Zip
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
distributor
https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/Mobile_DEM_2014_5169/index.html
WWW:LINK-1.0-http--link
Bulk Download
Simple download of data files.
download
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5169
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Customized Download
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
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dataset
Accuracy
Collection of LAS file containing high resolution elevation data attributes | Quantitative Value: Projection Consistency | Quantitative Test Explanation: ArcMap 10.1 was used to validate that the correct projection information was applied to each image.
Horizontal Positional Accuracy
LiDAR Horizontal Accuracy of the bare-earth data was assessed and reported in accordance with the guidelines developed by the NDEP and subsequently adopted by the ASPRS;; Quantitative Value: 0.09 meters, Test that produced the value: LiDAR Horizontal Accuracy of the bare-earth data was assessed and reported in accordance with the guidelines developed by the NDEP and subsequently adopted by the ASPRS;
Vertical Positional Accuracy
LiDAR Vertical Accuracy of the bare-earth data was assessed and reported in accordance with the guidelines developed by the NDEP and subsequently adopted by the ASPRS;
- FVA<= 0.60 ft ACCZ, 95% (030 ft RMSEZ)
- CVA<= 0.80 ft ACCZ, 95% (0.41 ft RMSEZ)
- SVA<= 0.80 ft ACCZ, 95% (0.41 ft RMSEZ)
Ninety-Five (111) surveyed points were measured for the purpose of assessing the accuracy of the Mobile County data.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Tested 0.511 US Survey Foot Fundamental Vertical Accuracy (FVA) at ninety-five percent confidence level in open terrain using RMSE(z) x 1.9600.
Tested 0.457 US Survey Foot Consolidated Vertical Accuracy (CVA) at ninety-five percent confidence level, using RMSE(z) x 1.9600.
Tested 0.372 US Survey Foot Supplemental Vertical Accuracy (SVA) at ninety-five percent confidence level, using RMSE(z) x 1.9600.; Quantitative Value: 0.156 meters, Test that produced the value: Vertical_Positional_Accuracy_Explanation: 0.511 foot (0.156 meter) Vertical Accuracy (FVA): The data meets the expected vertical accuracy of 0.6ft, @ ninety-five percent confidence level, using RMSE(z) x 1.9600,. as stated in the project contract.
Completeness Measure
Cloud Cover: 0
Completeness Report
Mobile County, Alabama
Conceptual Consistency
Topological integrity of the data was validated using the validation tools in ESRI's ArcGIS 10.1.
Ground Control This Geodetic Control Survey was conducted to support Light Detection and Ranging (LiDAR) data in accordance with the National Digital Elevation Program (NDEP) and the American Society for Photogrammetry and Remote Sensing (ASPRS) guidelines. A GPS control network was performed for the purposes of establishing a three-dimensional coordinates on each of the base station locations. The control network included a combination of a National Geodetic Survey (NGS) Control Monument (MOB AP STA A1), National Geodetic Survey (NGS) CORS (AL84, AL90, AL92, ALDI, ALM) ,Mobile Control Monuments (MCC1062, MCC1067, MCC1070, MCC1072, MCC1073, MOB1000, MOB1008, MOB1009, MOB1011, MOB1023, MOB1031, MOB1034) and a capped iron found (CIPF). GPS observations at all ground control points in the network were made with Leica System 500 dual frequency GPS-receivers w/ Leica AT502 antenna and a NovAtel DL 4=L1L2 receiver w/ NovAtel NOV702 3.00 antenna between April 30, 2014 and May 2, 2014.
2014-05-10T00:00:00
Aerial LiDAR Acquisition: Aerial data collection was acquired, in one (9) mission, using the ALS70 SN# 7123 at an altitude of 5500 ft. MSL. This was to support a 2.0 ppm^2 LiDAR point cloud. Airborne GPS and IMU data was collected during the acquisition and supported by Topcon Viper GPS base station that occupied NGS monument MOBARP. Data acquisition was collected January 12th 2014 through January 22th 2014.
2014-01-22T00:00:00
LIDAR PROCESSING:
LiDAR Calibration: Initial processing of the GPS data was processed using Inertial Explorer. The solution file was generated and ALSPP software was used to generate georeferenced laser returns which were then processed in strip form allowing for the QC of the overlap between strips (lines). The data from each line were combined and automated classification routines run to determine the initial surface model. This initial surface model was then verified to the LiDAR test points.
LiDAR Classification: The calibrated LiDAR data was run through automated classification routines and then manually checked. The data was classified into the following classes: 1-unclassified, 2-ground, 3-low-points/noise, 9-water
2014-10-20T00:00:00
GIS Development Products:
-Hydro-line Collection: Hydro breaklines were compiled using LiDAR Intensity data and surface model of the project area. After the completion of breaklines, they were validated and encoded into the LiDAR surface and used to hydro-enforce/flatten all significant water bodies.
-Terrain Creation: Terrain surface was created using hydro breaklines and bare ground LiDAR.
-ESRI DEM Creation: ESRI DEMs were created from the breaklines and bare-earth (ground) LiDAR data. DEM were created at 2ft resolution and tiled to client Index. Mobile county bare-earth DEM dataset produced from algorithmically thinned bare-earth ground classified lidar point cloud.
2014-11-25T00:00:00
The NOAA Office for Coastal Management (OCM) received the files from the City of Mobile GIS office. The files were ingested into the Digital Coast Data Access Viewer (DAV) system and this metadata record was modified to correct errors and reflect distribution through the DAV system.
2016-12-14T00:00:00
NOAA Office for Coastal Management
(843) 740-1202
coastal.info@noaa.gov
processor
Data were converted to cloud optimized geotiff format to support streaming. Georeferencing for the vertical was added.
2023-08-15T00:00:00
NOAA Office for Coastal Management
(843) 740-1202
coastal.info@noaa.gov
processor
Source Contribution: LiDAR, DEM, Contour | Source Geospatial Form: LAS | Type of Source Media: Portable Hard Drive
Mobile County LiDAR & Bare Earth DEM
2014-11-25
publication