49877
2009 Northwest Florida Water Management District (NWFWMD) Lidar: Leon County
nwfwmd2010_leon_m573_metadata
Data Set
Published / External
49401
Lidar - partner (no harvest)
Project
Completed
2011-04
This dataset is part of a regularly scheduled update of planimetric, hydrographic, and topographic features. The dataset was created from source imagery acquired by a Leica ADS40 multispectral scanner and LAS data acquired by a Leica ALS50 Phase I Lidar sensor from January 31, 2009 through February 6, 2009.
Original contact information:
Contact Name: Mr. Greg Mauldin
Contact Org: TLCGIS
Title: GIS Project Manager
Phone: (850) 606-5587
Email: gregm@mail.co.leon.fl.us
TLCGIS regularly uses digital orthophotos and planimetric/hydrographic/topographic data to support regulatory functions, land management and acquisition, planning, engineering and habitat restoration projects.
10521
LAS classifications:
1 = Unclassified
2 = Ground
7 = Noise
9 = Water
10 = Swamp
A footprint of this data set may be viewed in Google Earth at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/573/supplemental/2009_NWFWMD_Lidar_Leon_County.kmz
Theme
ISO 19115 Topic Category
elevation
Office for Coastal Management
Charleston
SC
Data Set
As Needed
LAS classifications:
1 = Unclassified
2 = Ground
7 = Noise
9 = Water
10 = Swamp
N/A
Any conclusions drawn from analysis of this information are not the responsibility of the Northwest Florida Water Management District (NWFWMD), the NOAA Office for Coastal Management or its partners.
Data Steward
2011-04
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Distributor
2011-04
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Metadata Contact
2011-04
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Point of Contact
2011-04
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Ground Condition
-84.717
-83.974
30.69
30.27
Discrete
2009-02-01
Yes
Unclassified
This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer
The data set is dynamically generated based on user-specified parameters.
;
N/A
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 base critical applications on this data set without full
awareness of potential limitations.
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=573
Customized Download
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/573/index.html
Bulk Download
Simple download of data files.
https://coast.noaa.gov
Online Resource
https://coast.noaa.gov/dataviewer
Online Resource
2016-05-23
Date that the source FGDC record was last modified.
2017-11-14
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.
2018-02-08
Partial upload of Positional Accuracy fields only.
2018-03-13
Partial upload to move data access links to Distribution Info.
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3500
Verification of attribute accuracy for Lidar data involves the use of filtering techniques. Auto-filtering uses algorithms to reclassify data in the point cloud. Hand-filtering involves the analysis of a technician working in a graphic environment to reclassify the erroneous points that may remain in the Lidar point cloud after auto-filter.
N/A
NSSDA accuracy of 0.5292 feet exceeds Fundamental Vertical Accuracy (FVA) requirement of 0.6 feet; Quantitative Value: 0.082296 meters, Test that produced the value: RMSE(z)
Cloud Cover: 0
The dataset was reviewed to ensure completeness and accuracy.
Calibrations of the Lidar flight line data are performed; this process is known as bore sighting. The flight lines are compared to evaluate both their relative and absolute accuracies.
Digital Aerial Photography
2009-01-01
Discrete
2009-02-01
Color imagery | Source Geospatial Form: raster digital data | Type of Source Media: disc
Ground Control
2009-01-01
Discrete
2009-02-01
Horizontal and vertical control was used to establish positions and elevations for reference and correlation purposes and as input to the aerotriangulation process. Control consists of Airborne GPS/IMU and ground control points for ground reference. | Source Geospatial Form: tabular digital data | Type of Source Media: disc
1
Lidar data was collected using Leica's ALS50 Phase I sensor. The raw data was verified in MARS software for complete coverage of the project area, and bore sighted to align the flight lines. Raw data files were parsed into manageable client-specific tiles. These tiles were then processed through automated filtering that separates the data into different classification groups: unclassified points, ground points, "noise" points and water. The data was next taken into MARS to reclassify the erroneous points that may remain in the Lidar point cloud after auto-filter.
2009-01-01T00:00:00
2
The NOAA Office for Coastal Management (OCM) received the lidar files in las format. The files contained lidar intensity
and elevation measurements. OCM performed the following processing for data storage and Digital Coast provisioning purposes:
1. Data converted from State Plane coordinates to geographic coordinates.
2. Data converted from NAVD88 heights to ellipsoid heights using GEOID03.
3. The LAS data were sorted by latitude and the headers were updated.
2011-04-01T00:00:00
gov.noaa.nmfs.inport:49877
Anne Ball
2017-11-15T15:22:55
SysAdmin InPortAdmin
2022-08-09T17:11:37
2022-03-16
OCM Partners
OCMP
1002
Public
No
2022-03-16
1 Year
2023-03-16