2006 Southwest Florida Water Management District (SWFWMD) Lidar: Upper Myakka District
Dataset Identification:
Resource Abstract:
EarthData International collected ALS-50-derived LiDAR over Upper Myakka Florida with a one-meter post spacing. The period
of collection was between 3 October and 12 October 2006. This data set falls in Manatee County. The collection was performed
by EarthData Aviation, using a Leica ALS-50 LiDAR system, including an inertial measuring unit (IMU) and a dual frequency
GPS receiver. This project required six lifts of flight lines to be collected. The product generated consisted of LiDAR bare
earth elevation models in LAS format. This data set is one component of a digital terrain model (DTM) for the Southwest Florida
Water Management District's FY2005 Digital LiDAR Project (H048), encompassing approximately 291 square miles across Manatee
County. The 2005 LiDAR dataset is comprised of 3-D mass points delivered in the LAS file format based on the District's 5,000'
by 5,000' grid (325 cells). The other DTM component is 2-D and 3-D breakline features in the ESRI ArcGIS Personal Geodatabase
format. In accordance with the 2005 SWFWMD Topographic Database Design, the following breakline closed water bodies (lakes,
reservoirs, etc) as 3-D polygons; linear hydrographic features (streams, canals, swales, embankments, etc) as 3-D breaklines;
coastal shorelines as 3-D linear features; edge of pavement road features as 3-D breaklines; soft features (ridges, valleys,
etc.) as 3-D breaklines; obscured vegetation polygons as 2-D polygons; overpasses and bridges as 3-D breaklines; 1-foot contours
for visualization purposes; and island features as 3-D polygons. Breakline features were captured to develop a hydrologically
correct DTM. Contours (1-foot) were generated from the DTM that meet the National Map Accuracy Standards for 2-foot contours
(FEMA specifications). Bare earth LiDAR mass point data display a vertical accuracy of at least 0.3-feet root mean square
error (RMSE) in open unobscured areas.
Citation
Title 2006 Southwest Florida Water Management District (SWFWMD) Lidar: Upper Myakka District
publication Date
2006-12-04
presentationForm
imageDigital
cited responsible party
-
originator
organisation Name
DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration,
U.S. Department of Commerce
Contact information
Telephone
Voice 843-740-1200
Address
2234 South Hobson Ave., Charleston, SC, 29405-2413
organisation Name
Southwest Florida Water Management District (SWFWMD)
cited responsible party
-
publisher
organisation Name
DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration,
U.S. Department of Commerce
Contact information
Telephone
Voice 843-740-1200
Address
2234 South Hobson Ave., Charleston, SC, 29405-2413
This project was designed to provide topographic information to the Southwest Florida Water Management District to support
regulatory, land management and acquisition, planning, engineering and habitat restoration projects.
Resource language:
eng; USA
Resource progress code:
completed
Resource Maintenance Information
maintenance or update frequency:
asNeeded
Constraints on resource usage:
Constraints
Use limitation statement:
These data depict the elevations at the time of the survey and are only accurate for that time. 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.
Any conclusions drawn from analysis of this information are not the responsibility of NOAA or any of its partners. These data
are NOT to be used for navigational purposes.
Constraints on resource usage:
Legal Constraints
Use Limitation
While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state
of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of
the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact
of distribution constitute such a warranty.
Spatial representation type code:
vector
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-082.451361
eastBoundLongitude
-081.879906
northBoundLatitude
27.555841
southBoundLatitude
27.176931
Temporal Extent
2006-10-03
2006-10-12
Credits:
Southwest Florida Water Management District
point of contact
-
pointOfContact
individual Name Mapping and GIS Section
organisation Name
Southwest Florida Water Management District
Contact information
Telephone
Voice 352.796.7211
Fax 352.540.6018
Address
2379 Broad Street, Brooksville, Florida, 34604
Country USA
Description Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems
and Coordinate Transformations.
source description
Source Contribution: Aerial Acquisition. EarthData International collected ALS-50-derived LiDAR over Upper Myakka Florida
with a one-meter post spacing using aircraft number N62912. The period of collection was between 3 October and 12 October
2006. The collection was performed by EarthData Aviation, using a Leica ALS-50 LiDAR system, serial number ALS039, including
an inertial measuring unit (IMU) and a dual frequency GPS receiver. This project required six lifts of flight lines to be
collected. The lines were flown at an average of 3000 feet above mean terrain using a pulse rate of 75,000 pulses per second.
Source Type: External hard drive
representative resolution scale:
Scale denominator: 1200
source citation
Title Upper Myakka Aerial Acquisition
publication Date
2006-10-12
cited responsible party
-
originator
organisation Name
EarthData Aviation
Resource extent
Temporal Extent
2006-10-03
2006-10-12
source
source description
Source Contribution: Ground Control. EarthData International was contracted to provide mapping services in the Upper Myakka
area of Florida. Aerial imagery and LiDAR data was collected for the project area. EarthData subcontracted the ground survey
tasks to Kevin J. Chappell, Florida PSM License No. LS5818. The Global Positioning System (GPS) was used to establish the
control network. There were a total of 41 stations occupied for this project. There were 19 new photo control stations, 11
new LIDAR control stations, 4 temporary GPS base stations, 5 existing NSRS control stations, 1 CORS station, and 1 airborne
GPS base station used by the flight crew. The final network was adjusted using least squares. A free adjustment and constrained
adjustment were performed. The results of the free adjustment indicate an external network accuracy of better than 3 cm in
relation to NAD 1983 1999 and NAVD 1988. The results of the constrained adjustment indicate an internal network accuracy of
better than 3 cm in relation to NAD 1983 1999 and NAVD 1988. Source Type: Paper
representative resolution scale:
Scale denominator: 1200
source citation
Title Report of GPS Survey Upper Myakka Area, FL
publication Date
2006-05-30
presentationForm
modelDigital
cited responsible party
-
originator
organisation Name
Kevin J. Chappell
Resource extent
Temporal Extent
2006-03-07
2006-04-13
source
source description
Source Contribution: LiDAR Land Cover QC Survey. EarthData International was contracted to provide mapping services in the
Upper Myakka area of Florida. LiDAR data was collected for the project area. EarthData subcontracted the quality control survey
tasks to WilsonMiller, Inc. The Global Positioning System (GPS) was used to establish the control network. There were a total
of 93 stations occupied for this project. 64 new LiDAR land cover control stations, 4 NGS base control stations, 8 FDEP 2005
base control stations, and 9 NGS control check stations. Source Type: Paper
representative resolution scale:
Scale denominator: 1200
source citation
Title LiDAR Land Cover Control, Report of GPS Survey
publication Date
2007-03-30
presentationForm
mapDigital
cited responsible party
-
originator
organisation Name
WilsonMiller, Inc.
Resource extent
Temporal Extent
2007-01-15
2007-02-12
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description
The minimum expected horizontal accuracy was tested to meet or exceed a 4.5-foot horizontal accuracy at 95 percent confidence
level using RMSE(r) x 1.7308 as defined by the National Standards for Spatial Data Accuracy (NSSDA). Compiled to meet 1.0
meter horizontal accuracy at the 95% confidence level.
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy Report
evaluation Method Description
The vertical accuracy for LiDAR data over well-defined surfaces meets the Federal Geographic Data Committee's (FGDC) published
National Standard for Spatial Data Accuracy (NSSDA). Vertical accuracies at the 95 percent confidence level for flat terrain
were required, and all systematic errors were eliminated to the greatest extent possible and the errors were normally distributed.
Accuracy was tested to meet an 18.28 cm (0.6 foot) fundamental vertical accuracy at 95 percent confidence level using RMSE
(z) x 1.9600 as defined by the National Standards for Spatial Data Accuracy (NSSDA).
Completeness Commission
evaluation Method Description
The following methods are used to assure LiDAR accuracy: 1. Use of IMU and ground control network utilizing GPS techniques.
2. Use of airborne GPS in conjunction with the acquisition of LiDAR. 3. Measurement of quality control ground survey points
within the finished product. The following software is used for the validation: 1. Terrascan 2. EarthData Proprietary Software
ConceptualConsistency
measure Description
Compliance with the accuracy standard was ensured by the collection of GPS ground control after the acquisition of aerial
LiDAR and the establishment of a GPS base station at the Sarasota-Bradenton International Airport. The following checks were
performed. 1. The ground control and airborne GPS data stream were validated through a fully analytical boresight adjustment.
2. The DTM (Digital Terrain Model) data were checked against the project control. 3. LiDAR elevation data was validated through
an inspection of edge matching and visual inspection for quality (artifact removal).
organisation Name
DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration,
U.S. Department of Commerce
Contact information
Telephone
Voice 843-740-1200
Address
2234 South Hobson Ave., Charleston, SC, 29405-2413
Ordering Instructions
The National Geophysical Data Center serves as the archive for this LIDAR data. NGDC should only be contacted for this data
if it cannot be obtained from NOAA Coastal Services Center.
Distributor
distributor contact
-
distributor
individual Name Mike Sutherland
organisation Name
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact information
Telephone
Voice 303-497-6120
Fax 303-497-6513
Address
NOAA/NESDIS/NGDC E/GC1 325 Broadway, Boulder, CO, 80305-3328
Country USA
Ordering Instructions
The National Geophysical Data Center serves as the archive for this LIDAR dataset. NGDC should only be contacted for the data
if it cannot be obtained from NOAA Coastal Services Center.
notes: This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version
FGDC-STD-001-1998) using the 2013-01-04 version of the FGDC RSE to ISO 19115-2 for LiDAR transform.
notes: Translated from FGDC 2013-06-11T09:44:06.264-06:00
notes: Last Metadata Review Date: 2011-11-19
Metadata contact
-
author
individual Name Mike Sutherland
organisation Name
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact information
Telephone
Voice 303-497-6120
Fax 303-497-6513
Address
NOAA/NESDIS/NGDC E/GC1 325 Broadway, Boulder, CO, 80305-3328
Country USA