2006 Volusia County Florida LiDAR

This dataset is the lidar data for Volusia County, Florida, approximately 1,432 square miles, acquired in early March of 2006.

A total of 143 flight lines of Lidar data were acquired in eleven sessions between 2-8 March 2006. This dataset is comprised of

1,591 LiDAR files, based on the Volusia County 5,000' by 5,000' sheet index system, in the LAS file format. The raw data was

collected at an average ground sample distance of 1-meter (3.3 ft), and the bare earth was classified and used as a basis for

the 2006 Volusia Countywide Digital Orthophoto Project. Lidar was collected to support DTM development suitable to generate

1 foot contours that meet 2 foot contour accuracy specifications. This data is not intended for engineering, design, water modeling,

or any other purposes other than as stated within this document. This data is intended for orthophoto rectification purposes only.

The lidar data classifications in this data set are: unclassified, ground and high vegetation.

NOTE: Please be aware that there are returns from the water surface that are classified as ground, as well as unclassified.

Original contact information:

Contact Name: Arden Fontaine

Contact Org: Volusia County Public Works Department

Title: Special Projects Manager

Phone: 386-736-5965

Email: afontaine@co.volusia.fl.us

The DEM was developed to support the 2006 Volusia Countywide Digital Orthophoto Imagery Project.

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The Minimum Technical Standard Report for Volusia County, FL may be viewed at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/35/supplemental/index.html

Refer to LAS Specification version 1.1

See process steps within this metadata record for specific methodology

Any conclusions drawn for the analysis of this information are not the responsibility of the Volusia

County Public Works Department, the Office for Coastal Management, or its partners.

This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer;

None

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data may no longer represent actual surface conditions.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. This data is not intended for engineering, design, water modeling, or any other purposes other than

as stated within this document. This data is intended for orthophoto rectification purposes only.

This data is intended for orthophoto rectification purposes only. This data is data is not intended for

engineering, design, or water modeling purposes.

The intended horizontal accuracy is consistent with features on digital orthophotographs

that meet National Map Accuracy Standards at a scale of 1:1200. The accuracy of the DEM has not been tested. The horizontal

accuracy of the DTM/TIN is estimated to be at least 1.3 ft (39.62 cm) RMSE for unobscured points.

The vertical accuracy of the TIN is 0.6 feet (18.28 cm) at the 95% confidence level for

unobscured points.

The user should exercise caution when working with mass points and breaklines within obscured/vegetation

polygons as this data may not meet the accuracy requirements as set forth for well-defined points. The estimated vertical

accuracy of obscured points is 0.7 feet (21.34 cm) at the 95% confidence level.

Cloud Cover: 0

All elevation measurements within the bounding coordinates were used to derive this dataset.

The LiDAR DEM was developed in accordance with the contract LiDAR specifications.