2004 Southwest Florida Water Management District (SWFWMD) Lidar: Lake Hancock District
Dataset Identification:
Resource Abstract:
The Light Detection and Ranging (LiDAR) LAS dataset is a survey of select areas within Southwest Florida. These data were
produced for the Southwest Florida Water Management District (SWFWMD). This metadata record describes the ortho & LIDAR mapping
of Lake Hancock, in Polk County, FL. The mapping consists of LIDAR data collection, contour generation, and production of
natural color orthophotography with a 1ft pixel using imagery collected with a Wild RC-30 Aerial Camera.
Citation
Title 2004 Southwest Florida Water Management District (SWFWMD) Lidar: Lake Hancock District
publication Date
2005-05-20
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
other Citation Details
Cinergi keyword enhanced.File generated at Thu Aug 24 10:01:06 UTC 2017
purpose:
The Southwest Florida Water Management District uses topographic information to support regulatory, land management and acquisition,
planning, engineering, and habitat restoration projects. The purpose of this mapping project is to create and deliver digital
terrain models (DTM), capable of generating one-foot contours and to produce orthophotography at a 200'.
Resource language:
eng; USA
Resource progress code:
completed
Resource Maintenance Information
maintenance or update frequency:
unknown
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temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual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
-081.992800
eastBoundLongitude
-081.747900
northBoundLatitude
28.166600
southBoundLatitude
27.892000
Temporal Extent
2004-02-02
Credits:
Acknowledgement of the Southwest Florida Water Management District would be appreciated in products derived from these data.
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: Ground Control Data. Kevin Chappell, a Florida PSM, under contract to EarthData International established
27 aerial targets and photo identifiable ground control points prior to aerial imagery acquisition. The points were surveyed
using GPS for both vertical and horizontal coordinate values. Ground control references Florida West State Plane NAD83, NAVD88
both in Meters. Source Type: Electronic mail system
representative resolution scale:
Scale denominator: 1200
source citation
Title Report of Survey of Lake Hancock/Winter Haven Polk County, FL
publication Date
2004-07-23
presentationForm
documentDigital
cited responsible party
-
originator
organisation Name
Kevin J. Chappell, PSM
Resource extent
Temporal Extent
2004-04-26
2004-04-27
source
source description
Source Contribution: Aerial Photography. The aerial photographic mission was composed of a total of 613 exposures in 19 North-South
oriented flight lines. Photography was obtained at an altitude of 4,100 feet above mean terrain. Aerial photography was exposed
in conjunction with airborne GPS; the stationary GPS receiver was positioned over a control point located at the airport.
Aerial photography was exposed on natural color negative film using Wild RC-30 camera 5086, with 153.277 mm (6 inch) focal
length lens cone number 13112. Photography was exposed on Agfa X-100 film, emulsion number 67663036. Source Type: Filmstrip
source citation
Title Lake Hancock Aerial Photography
publication Date
2004-09-02
presentationForm
profileDigital
cited responsible party
-
originator
organisation Name
EarthData Aviation, LLC
Resource extent
Temporal Extent
2004-03-08
source
source description
Source Contribution: Aerial Lidar Acquisition. The LIDAR acquisition for Lake Hancock was acquired in two sorties using the
Leica ALS40 sensor. The data was acquired at a flying height of 6,000 feet AMT with a scan rate of 26 Hz and a 25 degree field
of view. Source Type: Fire wire
source citation
Title LIDAR Acquisition of Lake Hancock
publication Date
2004-05-01
presentationForm
profileDigital
cited responsible party
-
originator
organisation Name
EarthData Aviations
Resource extent
Temporal Extent
2004-02-02
2004-02-03
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description
The digital orthophotos fully comply with NMAS standards for production of orthophotos at a horizontal natural ratio of 1
to 2,400 with a ground pixel resolution of 1 foot. 110 cm (3.6 ft) horizontal accuracy at the 95% confidence level, not tested.
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy Report
evaluation Method Description
The digital elevation model is fully compliant with National Standard for Spatial Data Accuracy (NSSDA) published by the Federal
Geographic Data Committee (FGDC) in 1998. The NSSDA uses root-mean-square error (RMSE) to estimate positional accuracy. RMSE
is the square root of the average of the set of squared differences between dataset coordinate values and coordinate values
from an independent source of higher accuracy for identical points. Accuracy is reported in ground distances at the 95% confidence
level. Accuracy reported at the 95% confidence level means that 95% of the positions in the dataset will have an error with
respect to true ground position that is equal to or smaller than the reported accuracy value. The reported accuracy value
reflects all uncertainties, including those introduced by geodetic control coordinates, compilation, and final computation
of ground coordinate values in the product. The intended vertical accuracy of this project is 17.98 cm (0.59-feet) (95% confidence
level) vertical. RMSE=9.144 cm (0.3-feet) for unobscured ground points, not tested.
Completeness Commission
evaluation Method Description
The following software is used for validation of the 1. Aerotriangulation - Photo-T, ISAT 2. DTM data - Z/I Imaging SSK 3.
Digital Orthophotography - Z/I Imaging OrthoPro
ConceptualConsistency
measure Description
Compliance with the accuracy standard was ensured by the placement of GPS ground control prior to the acquisition of aerial
photography. The following checks were performed. 1. The ground control and airborne GPS data stream were validated through
a fully analytical bundle aerotriangulation adjustment. The residuals of the adjustment met the required standards for accuracy
which are 1 part in 10,000 of the flying height for the horizontal position (X and Y) and 1 part in 9,000 or better of the
flying height in elevation (Z). 2. The DTM (Digital Terrain Model) data were checked against the project control. The technician
visited and confirmed the accuracy of the project mass points during initial compilation. 3. Digital orthophotography was
validated through an inspection of edge matching and visual inspection for image quality.
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/NCEI > National Centers of Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Contact information
Telephone
Voice 303-497-6120
Fax 303-497-6513
Address
325 Broadway E/GC1, 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 2013-05-07T15:16:56.702-06:00
notes: Last Metadata Review Date: 2011-11-19
Metadata contact
-
author
individual Name Mike Sutherland
organisation Name
DOC/NOAA/NESDIS/NCEI > National Centers of Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Contact information
Telephone
Voice 303-497-6120
Fax 303-497-6513
Address
325 Broadway E/GC1, Boulder, CO, 80305-3328
Country USA