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Short Citation:
OCM Partners, 2022: 2007 Florida Division of Emergency Management (FDEM) Lidar Project: Eastern Indian River County, https://www.fisheries.noaa.gov/inport/item/49673.

Item Identification

Title: 2007 Florida Division of Emergency Management (FDEM) Lidar Project: Eastern Indian River County
Short Name: fdem2007_indian_river_m539_metadata
Status: Completed
Publication Date: 2008
Abstract:

This Light Detection and Ranging (LiDAR) LAS dataset is a topographic survey conducted for a coalition of GIS practitioners,

including the Florida Division of Emergency Management (FDEM), Florida Water Management Districts, Florida Fish and Wildlife

Conservation Commission, Florida Department of Environmental Protection, Army Corps of Engineers Jacksonville District, and

other state and federal agencies. The goal for this project is to use the LiDAR data as new elevation inputs for updated SLOSH

data grids. The ultimate result is the update of the Regional Hurricane Evacuation Studies (RHES) for the state. The State of Florida

Division of Emergency Management LiDAR Survey was collected under the guidance of a Professional Mapper/Surveyor.

Data were collected for 255 square miles in the eastern portion of Indian River County, Florida from August 24 - 28, 2007.

This is a classified lidar data set. The data are classified: 1 = Unclassified, 2 = Ground (Bare Earth), 7 = Noise, 9 = Water

and 12 = Overlap. The data was collected at a maximum post spacing of 4 feet in unobscured areas for random point data.

Original contact information:

Contact Org: Florida DEM

Phone: 850-413-9907

Email: gis@dca.state.fl.us

Purpose:

The LiDAR topographic mapping survey is to support the Florida Division of Emergency Management (FDEM) development and maintenance

of Regional Hurricane Evacuations Studies (RHES), which include vulnerability assessments, and to assist disaster response

personnel in understanding the threats to Florida's citizens and visitors. Additional intended uses for this survey are growth

management, map modernization/floodplain mapping, natural lands stewardship, and homeland security planning.

Notes:

10317

Supplemental Information:

A complete description of this data set is available in the Minimum Technical Standard (MTS report) "Minimum Technical Standards,

Vol.2 Final Report of Lidar Mapping, Indian River County, Florida" and in "Minimum Technical Standards, Vol. 1 Final Report of

Lidar Control and QA/QC Checkpoint Survey, Indian River County, Florida."

These reports may be accessed at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/539/supplemental

A footprint of this data set may be viewed in Google Earth at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/539/supplementalFDEM_Lidar_Indian_River_County.kmz

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None Contours
None Hydrology
None Photogrammetry
None Terrain

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Entity Attribute Overview:

Entity and Attribute information designed in accordance to FDEM Baseline Specifications 1.2 (Attachment 3)

Entity Attribute Detail Citation:

Entity and Attribute information designed in accordance to FDEM Baseline Specifications 1.2 (Attachment 3)

Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management

or its partners.

Support Roles

Data Steward

CC ID: 672129
Date Effective From: 2008
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 672131
Date Effective From: 2008
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 672132
Date Effective From: 2008
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 672130
Date Effective From: 2008
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1138766
W° Bound: -80.61717
E° Bound: -80.30907
N° Bound: 27.867889
S° Bound: 27.550789

Extent Group 1 / Time Frame 1

CC ID: 1138765
Time Frame Type: Range
Start: 2007-08-24
End: 2007-08-28

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Data Access Procedure:

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

Data Access Constraints:

None

Data 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.

Distribution Information

Distribution 1

CC ID: 740675
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=539
Distributor:
File Name: Customized Download
Description:

Create custom data files by choosing data area, product type, map projection, file format, datum, etc.

Distribution 2

CC ID: 740676
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/539/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 740678
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 740679
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 672149
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 672148
Activity Date/Time: 2017-11-14
Description:

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.

Activity Log 3

CC ID: 718221
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 740677
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Technical Environment

Description:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.2.1350

Data Quality

Horizontal Positional Accuracy:

Per contract specification, the horizontal accuracy requirement is to meet or exceed a 3.8-foot (1.15 m) horizontal accuracy at the

95% confidence level using RMSE(r) x 1.7308 as defined by the FGDC Geospatial Positional Accuracy Standards, Part 3: NSSDA.

Please refer to the two reports that accompany this data set for more detailed information. These reports may be accessed at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/539/supplemental/index.html

Vertical Positional Accuracy:

0.3-feet (9.14 cm) tested RMSE for unobscured ground points. The accuracy assessment was performed using a standard method to

compute the root mean square error (RMSE) based on a comparison of ground control points and filtered LiDAR data points.

Filtered LiDAR data has had vegetation and cultural features removed and by analysis represents bare earth elevations. The RMSE

figure was used to compute the vertical National Standard for Spatial Data Accuracy (NSSDA).

The Brush Lands and Low Trees and the Forested Areas Fully Covered by Trees landcover types exceed the recommended maximum values

for RMSEz and 95% CI. Brush Lands and Low Trees exceed the recommended accuracies by 0.07 feet and 0.14 feet, respectively.

Forested Areas Fully Covered by Trees type exceeds the recommended accuracies by 0.31 feet and 0.61 feet, respectively. This indicates

that there is a greater degree of misclassification of lidar points within these landcover types than within the Bare Earth and

Low Grass and Urban Areas landcover types. It is important that users of the data be aware of the potential accuracy limitations

within the Forested Areas Fully Covered by Trees and to a lesser degree for the Brush Lands and Low Trees.

Please refer to the two reports that accompany this data set for more detailed information. These reports may be accessed at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/539/supplemental/index.html

Completeness Report:

This feature class represents the complete set of data for 284 tiles within Indian River County.

Conceptual Consistency:

The LiDAR DTM was developed in accordance with the Baseline Specifications 1.2. The DTM is intended to

support 2-foot contours, and the vertical accuracy of ground points in unobscured areas is not to exceed 0.6-feet RMSE.

Lineage

Sources

State of Florida Division of Emergency Management LiDAR Project Survey

CC ID: 1138761
Publish Date: 2008-03-27
Extent Type: Discrete
Extent Start Date/Time: 2008-03-27
Source Contribution:

The LiDAR Project Survey was acquired for the Florida Division of Emergency Management and processed by Woolpert Inc.

To collect the breaklines the LiDAR data was used as the main source data set in addition to orthophotography. Orthophoto imagery

was from new imagery collected and developed by the Woolpert Team. All imagery for Indian River County is dated 2007 with a 0.5 foot

pixel resolution.

| Source Geospatial Form: vector digital data | Type of Source Media: disc

Process Steps

Process Step 1

CC ID: 1138762
Description:

LiDAR was collected within portions of Indian River County.

System Parameters/Flight Plan:

The LiDAR system acquisition parameters were developed based on a maximum average ground sample distance of 4 feet. Two Leica

ALS50 sensors were used for acquisition. Acquisition specifications for the two sensors were as follows:

Sensor 19 Field of View (full angle) - 29 degrees Nominal flight altitude (AMSL) - 3999.30 feet Airspeed - 54.02 meters/sec

Laser pulse rate - 75,000 Hz Nominal swath width (on ground) - 2068.58 feet Maximum cross track point spacing - 3.91 feet Maximum

along track point spacing - 3.94 feet Average point spacing - 2.21 feet Flight line spacing - 1544.95 feet Side overlap - 25.31%.

Sensor 59 Field of View (full angle) - 29 degrees Nominal flight altitude (AMSL) - 3999.30 feet Airspeed - 60.70 meters/sec Laser

pulse rate - 84,400 Hz Nominal swath width (on ground) - 2068.58 feet Maximum cross track point spacing - 3.94 feet Maximum along

track point spacing - 3.91 feet Average point spacing - 2.21 feet Flight line spacing - 1413.72 feet Side overlap - 31.66%.

LiDAR System Calibration:

Prior to the LiDAR acquisition, the system underwent a calibration to verify the operational accuracy and misalignment angles.

Boresight calibrations were performed for each LiDAR system at the beginning and end of each flight mission.

LiDAR Data Acquisition:

LiDAR data acquisition only occurred when the sky was sufficiently clear of clouds, smoke, and atmospheric haze. The LiDAR data

was processed immediately after the acquisition to verify the coverage had no voids.

GPS/Inertial Measurement Unit (IMU) Post Processing:

The GPS and IMU data was post processed using differential and Kalman filter algorithms to derive a best estimate of trajectory.

The quality of the solution was verified to be consistent with the accuracy requirements of the project.

LiDAR Processing and Classification:

The LiDAR data was post processed and verified to be consistent with the project requirements in terms of post spacing and absence

of artifacts. The point cloud underwent classification to determine bare-earth points (class 2), noise points (class 7),

water returns (class 9), and unclassified data (class 1). Class 12 contains LiDAR points removed from the overlap region between

adjacent flight lines.

Process Date/Time: 2009-01-05 00:00:00

Process Step 2

CC ID: 1138763
Description:

The NOAA Office for Coastal Management (OCM) received files in LAS format. The files contained LiDAR intensity and elevation measurements.

OCM performed the following processing on the data to make it available within Digital Coast:

1. The data were converted from State Plane Florida East coordinates to geographic coordinates.

2. The data were converted from NAVD88 heights to ellipsoid heights using Geoid03.

3. The LAS header fields were sorted by latitude and updated.

Process Date/Time: 2010-06-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity MASSPOINT

Catalog Details

Catalog Item ID: 49673
GUID: gov.noaa.nmfs.inport:49673
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:21+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2022-03-16
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2022-03-16
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2023-03-16