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OCM Partners, 2022: 2004 Florida Division of Emergency Management (FDEM) Lidar: Portion of Flagler County, https://www.fisheries.noaa.gov/inport/item/49663.

Item Identification

Title: 2004 Florida Division of Emergency Management (FDEM) Lidar: Portion of Flagler County
Short Name: fdem2004_flagler_m526_metadata
Status: Completed
Publication Date: 2009
Abstract:

This metadata record describes the LiDAR data that was collected for 147 square miles within part of Flagler County, Florida

during 28 February - 5 May 2004.

In 2008, because the final lidar dataset satisfied the accuracy requirements in the FDEM Baseline Specifications, the lidar

data was processed into .LAS files, and breaklines and contours were generated for the Florida Division of Emergency

Management (FDEM) using the existing lidar data from 2004.

Original contact information:

Contact Org: Florida DEM

Phone: 850-413-9907

Email: gis@dca.state.fl.us

Purpose:

Used in conjunction with breaklines to determine a DTM surface. The DTM was developed to support the Florida Division of

Emergency Management (FDEM) development and maintenance of Regional Evacuation Studies (Study), which include vulnerability

assessments and assist disaster response personnel in understanding threats to Florida's citizens and visitors.

Notes:

10307

Supplemental Information:

For additional information, the Minimum Technical Standard (MTS report) "Final Report of Specific Purpose LiDAR Survey - LiDAR

Generated Breaklines and Contours" may be viewed at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/526/supplemental/index.html

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation

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
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.

The data represent the results of data collection and processing for a specific Florida Division of Emergency Management activity

and indicates the general existing conditions at the time of the data collection. As such, it is only valid for its intended use,

content, time, and accuracy specifications. The user is responsible for the results of any application of the data for other than

its intended purpose.

Support Roles

Data Steward

CC ID: 671805
Date Effective From: 2009
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: 671807
Date Effective From: 2009
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: 671808
Date Effective From: 2009
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: 671806
Date Effective From: 2009
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: 1138620
W° Bound: -81.506793
E° Bound: -81.101503
N° Bound: 29.671515
S° Bound: 29.325883

Extent Group 1 / Time Frame 1

CC ID: 1138619
Time Frame Type: Range
Start: 2004-02-28
End: 2004-05-05

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: 740624
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=526
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: 740625
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/526/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 740627
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 740628
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 671821
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 671820
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: 718211
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 740626
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 2; ESRI ArcCatalog 9.2.4.1420

Data Quality

Horizontal Positional Accuracy:

The 3D breaklines inherit the accuracy of the Lidar it was acquired from. Lidar source was compiled to meet 1 m horizontal accuracy.; Quantitative Value: 1 meters, Test that produced the value:

The PDS team does not perform independent horizontal accuracy testing on the LiDAR. LiDAR vendors perform calibrations on

the LiDAR sensor and compare data to adjoining flight lines to ensure LiDAR meets the 1 meter horizontal accuracy standard

at the 95% confidence level.

Vertical Positional Accuracy:

The 3D breaklines inherit the accuracy of the Lidar it was acquired from.; Quantitative Value: 0.18 meters, Test that produced the value:

Based on the vertical accuracy testing conducted by PDS, using NSSDA and FEMA methodology, vertical accuracy at the 95% confidence

level (called Accuracyz) is computed by the formula RMSEz x 1.9600.

The dataset for Flagler County, Florida satisfies the criteria:

Countywide lidar dataset tested 0.18 m(0.60 ft) vertical accuracy at 95% confidence level in open terrain,

based on open terrain RMSEz 0.31 ft) x 1.9600.

Countywide lidar dataset tested 0.27 m (0.88 ft) vertical accuracy at 95% confidence level in all land cover categories combined,

based on consolidated RMSEz (0.45 ft) x 1.9600.

Completeness Report:

A visual qualitative assessment was performed in the source Lidar dataset.

Conceptual Consistency:

Data covers the tile scheme provided for the county.

Lineage

Sources

Lidar

CC ID: 1138613
Publish Date: 2008-05-01
Extent Type: Range
Extent Start Date/Time: 2004-02-28
Extent End Date/Time: 2004-05-05
Source Contribution:

LiDAR dataset was used to create the multipoint file consisting of ground only points. | Source Geospatial Form: vector digital data | Type of Source Media: online

Process Steps

Process Step 1

CC ID: 1138614
Description:

The ABGPS, IMU, and raw Leica ALS40 LiDAR data are integrated with Leica's Incorporated ALS Post Processor software.

The resultant file is in a LAS binary file format. The LAS file version 1.1 format can be easily transferred from one file

format to another. It is a binary file format that maintains information specific to the LiDAR data (return #, intensity value,

xyz, etc). The resultant points are produced in the geodetic coordinates referenced to the NAD83 HARN horizontal datum and

NAVD88 vertical datum. The date and time for each flight line can be determined using the Julian date and time. The Julian

date is a continuous count of days and fractions since noon Universal Time on January 1, 4713 BCE on the Julian calendar.

Process Date/Time: 2004-01-01 00:00:00

Process Step 2

CC ID: 1138615
Description:

The unedited data are classified to facilitate the application of the appropriate feature extraction filters. A combination

of proprietary filters are applied as appropriate for the production of bare earth digital terrain models (dtms).

Interactive editing methods are applied to those areas where it is inappropriate or impossible to use the feature extraction filters,

based upon the design criteria and/or limitations of the relevant filters. These same feature extraction filters are used to

produce elevation height surfaces. The LiDAR mass points were delivered in American Society for Photogrammetry and Remote

Sensing LAS 1.1 format. The header file for each dataset is complete as define by the LAS 1.1 specification. In addition the

following fields are included: Flight Date Julian, Year, and Class. The LAS files do not include overlap.

The data was classified as follows:

Class 1 = Unclassified. This class includes vegetation, buildings, noise etc.

Class 2 = Ground

Class 9 = Water

Process Date/Time: 2008-01-01 00:00:00

Process Step 3

CC ID: 1138616
Description:

Ground points were extracted from the LiDAR dataset and converted to a multipoint feature class using ArcGIS.

Process Date/Time: 2008-01-01 00:00:00

Process Step 4

CC ID: 1138617
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: 2010-01-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity MASSPOINT

Catalog Details

Catalog Item ID: 49663
GUID: gov.noaa.nmfs.inport:49663
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