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Short Citation:
OCM Partners, 2022: 2009 St. Johns River Water Management District (SJRWMD) Lidar: Portions of Orange and Seminole Counties, Florida, https://www.fisheries.noaa.gov/inport/item/49696.

Item Identification

Title: 2009 St. Johns River Water Management District (SJRWMD) Lidar: Portions of Orange and Seminole Counties, Florida
Short Name: fl2009_sjrwmd_m535_metadata
Status: Completed
Publication Date: 2009
Abstract:

The project area covers 318 square miles in the eastern half of Seminole County plus portions of north central and northeast Orange County

in the state of Florida. The LiDAR data was collected 8 - 11 February 2009. The data are classified: 1 = Unclassified, 2 = Ground,

7 = Noise, 9 = Water and 12 = Overlap.

Original contact information:

Contact Org: St. Johns River Water Management District

Title: GIS Data Manager, Information Resources Department

Phone: (386) 329-4500

Email: gis_support@sjrwmd.com

Purpose:

To develop a consistent and accurate surface elevation dataset for a portion of the Central Florida Coordination Area (CFCA) in

accordance with the Florida Department of Emergency Management (FDEM) Baseline Specifications. The CFCA defines an area that faces

particularly difficult water supply issues. Three of Florida's Water Management Districts have jurisdiction in the CFCA: the South

Florida Water Management District (SFWMD), the St. Johns River Water Management District (SJRWMD), and the Southwest Florida Water

Management District (SWFWMD). These three water management districts are cooperating to develop and implement mutually acceptable

strategies to provide adequate supplies of water to support projected growth without unacceptable impacts.

Notes:

10340

Supplemental Information:

The Specific Purpose Lidar Survey Report may be viewed at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/535/supplemental/Survey_Report_for_SJRWMD_Elevation_Dataset_FINAL.pdf

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

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/535/supplemental/SJRWMD_Lidar.kmz

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None Contour

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.

Support Roles

Data Steward

CC ID: 672902
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: 672904
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: 672905
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: 672903
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: 1138724
W° Bound: -81.362815
E° Bound: -80.925563
N° Bound: 28.831441
S° Bound: 28.528425

Extent Group 1 / Time Frame 1

CC ID: 1138723
Time Frame Type: Range
Start: 2009-02-08
End: 2009-02-11

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: 740800
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=535
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: 740801
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/535/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 740803
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 740804
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 672923
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 672922
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: 718245
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 740802
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 9.3.1.1850

Data Quality

Horizontal Positional Accuracy:

Lidar source compiled to meet 1 m horizontal accuracy.; Quantitative Value: 1 meters, Test that produced the value:

Dewberry 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.

Please refer to Appendix D: LiDAR Processing Report, of the Lidar report referenced above in the Supplemental_Information field for more

details.

Vertical Positional Accuracy:

The FDEM Baseline Specifications were used for the vertical accuracy assessment for this project.; Quantitative Value: 0.155 meters, Test that produced the value:

Based on the vertical accuracy testing conducted by Dewberry, 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 St. Johns River Water Management District satisfies

the criteria:

Lidar dataset tested 0.155 m (0.51 ft) fundamental vertical accuracy (FVA) at 95% confidence level in open terrain, based on open terrain

RMSEz 0.079 m (0.26 ft) x 1.9600.

Lidar dataset tested 0.31 m (1.004 ft) consolidated vertical accuracy (CVA) at 95% confidence level in all land cover categories combined,

based on consolidated RMSEz 0.137 m (0.45 ft) x 1.9600.

Based on the vertical accuracy testing conducted by Dewberry, using NDEP and ASPRS methodology, consolidated vertical accuracy at

the 95% confidence level is computed using the 95th percentile method. The dataset for St. Johns River Water Management District

satisfies the criteria:

Lidar dataset tested 0.305 m (1.00 ft) consolidated vertical accuracy at 95% confidence level in all land cover categories combined.

Please refer to Appendix A: LiDAR Vertical Accuracy Report, of the Lidar report referenced above in the Supplemental_Information field

for more details.

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: 1138717
Publish Date: 2009-02-01
Extent Type: Range
Extent Start Date/Time: 2009-02-08
Extent End Date/Time: 2009-02-11
Source Contribution:

The 3d Breakline collection was done utilizing MARS proprietary software. | Source Geospatial Form: vector digital data | Type of Source Media: online

Process Steps

Process Step 1

CC ID: 1138718
Description:

The ABGPS, IMU, and raw Leica ALS50 LiDAR data are integrated with Leica's Incorporated's 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: 2009-01-01 00:00:00

Process Step 2

CC ID: 1138719
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 defined by the LAS 1.1 specification. In addition the following fields are included: Flight Date Julian, Year, and Class.

The data was classified as follows:

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

Class 2 = Ground

Class 7 = Noise

Class 9 = Water

Class 12 = Overlap

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

Process Step 3

CC ID: 1138720
Description:

Ground points were extracted from the Lidar dataset, class 2, and converted to a multipoint feature class using ArcGIS.

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

Process Step 4

CC ID: 1138721
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 UTM Zone 17 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.

4. The data were filtered to remove outliers.

Process Date/Time: 2010-06-09 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity MASSPOINTS

Catalog Details

Catalog Item ID: 49696
GUID: gov.noaa.nmfs.inport:49696
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