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Short Citation:
OCM Partners, 2022: 2010 Northwest Florida Water Management District (NWFWMD) Lidar: Mission 2010 (Portions of Liberty and Calhoun Counties), https://www.fisheries.noaa.gov/inport/item/49878.

Item Identification

Title: 2010 Northwest Florida Water Management District (NWFWMD) Lidar: Mission 2010 (Portions of Liberty and Calhoun Counties)
Short Name: nwfwmd2010_mission2010_m581_metadata
Status: Completed
Publication Date: 2011-05
Abstract:

LIDAR-derived binary (.las) files containing points classified as: Unclassified (1), Ground (2) and Water (9) were produced for the

2010 Northwest Florida Water Management District - 2 Counties (Calhoun and Liberty), Florida LIDAR mapping project. The data were

collected March 30 - April 1, 2010 and the total mapping area covers approximately 585 square miles in Liberty County and 2.65 square

miles in Calhoun County.

Original contact information:

Contact Name: Mr. John Crowe

Contact Org: Northwest Florida Water Management District (NWFWMD)

Title: Associate Hydrologist, Division of Resource Management

Phone: 850-539-5999

Email: John.Crowe@nwfwmd.state.fl.us

Purpose:

To produce accurate, high-resolution data for planning, analysis, and for use with other data sets.

Notes:

10522

Supplemental Information:

The Northwest Florida Water Management District (NWFWMD) Portions of Liberty and Calhoun Counties, Florida LiDAR Mapping Report

may be viewed at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/581/supplemental/NWFWMD_Liberty_County_LiDAR_Mapping_Report.pdf

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

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/581/supplemental/2010_NWFWMD_2010_Mission_Lidar.kmz

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None bare earth
None binary
None canopy

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2010

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:

Use ASPRS LAS 1.2 specifications / classification designations for filtering:

Class 1 = Unclassified (i.e., vegetation, buildings, cars, structures, and other miscellaneous features)

Class 2 = Ground (i.e., bare-earth)

Class 9 = Water

LIDAR intensity values range from 0-255.

LIDAR return values range from 1-3.

Flight line numbers range from 1-19.

Entity Attribute Detail Citation:

Use ASPRS LAS 1.2 specifications / classification designations for filtering:

Class 1 = Unclassified (i.e., vegetation, buildings, cars, structures, and other miscellaneous features)

Class 2 = Ground (i.e., bare-earth)

Class 9 = Water

Distribution Liability:

Any conclusions drawn from analysis of this information are not the responsibility of the Northwest Florida Water Management District (NWFWMD),

the NOAA Office for Coastal Management or its partners.

Data Set Credit: Northwest Florida Water Management District (NWFWMD)

Support Roles

Data Steward

CC ID: 681603
Date Effective From: 2011-05
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: 681605
Date Effective From: 2011-05
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: 681606
Date Effective From: 2011-05
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: 681604
Date Effective From: 2011-05
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: 1139337
W° Bound: -85.371138
E° Bound: -84.637447
N° Bound: 30.594233
S° Bound: 30.016385

Extent Group 1 / Time Frame 1

CC ID: 1139336
Time Frame Type: Range
Start: 2010-03-30
End: 2010-04-01

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Security Classification System:

unknown

Security Handling Description:

unknown

Data Access Procedure:

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

The data set is dynamically generated based on user-specified parameters.

;

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: 741850
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=581
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: 741851
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/581/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 741853
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 741854
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 681627
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 681626
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC Content Standard 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: 718458
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 741852
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); ArcGIS Desktop 9.1; ArcGIS Workstation 9.1; MARS 4.0

Data Quality

Accuracy:

Verification of attribute accuracy of LIDAR data involves the use of filtering techniques. Auto-filtering uses algorithms to reclassify

data in the point cloud. Hand-filtering involves the use of a technician working in a graphic environment to reclassify the erroneous

points that may remain in the LIDAR point cloud after auto filter.

Horizontal Positional Accuracy:

Horizontal accuracy is verified in three tests. During boresighting, adjoining flightlines are view in profile and hard edged features

are observed and if necessary the flightlines are adjusted for good relative horizontal and vertical fit. The second test for horizontal

accuracy is by comparing raw contours from each flightline against adjoining flightlines at specific points. The final test is the

vertical LIDAR control report.

Vertical Positional Accuracy:

Survey control points were used to validate the accuracy of the LIDAR surface model after automatic and hand filtering. This surface

exceeds the NDEP vertical accuracy specifications of 18.5cm RMSEz. The vertical accuracy for this data set is 0.60 ft (0.18 m) RMSEz.

Completeness Measure:

Cloud Cover: 0

Completeness Report:

This dataset contains classified returns of the LIDAR sensor. The sensor data was verified in MARS software to ensure complete coverage.

Conceptual Consistency:

Calibrations of the LIDAR flightline data are performed; this process is known as boresighting. The flightlines are compared to evaluate

both their relative and absolute accuracies.

Lineage

Sources

Ground Control

CC ID: 1139331
Publish Date: 2010-01-01
Extent Type: Discrete
Extent Start Date/Time: 2007-11-12
Source Contribution:

GPS control network for LIDAR acquisition and processing. | Source Geospatial Form: spreadsheet | Type of Source Media: spreadsheet

LIDAR

CC ID: 1139332
Publish Date: 2010-01-01
Extent Type: Range
Extent Start Date/Time: 2010-03-30
Extent End Date/Time: 2010-04-01
Source Contribution:

LIDAR points form the basis of the DTM surface. | Source Geospatial Form: LAS data | Type of Source Media: digital data

Process Steps

Process Step 1

CC ID: 1139333
Description:

LIDAR data was collected using Merrick's ALS60 sensor. The raw data was verified in MARS software for complete coverage of the project

area, and boresighted to align the flightlines. Raw data files were parsed into manageable client-specific tiles. These tiles were then

processed through automated filtering that separates the data into different classification groups: error points, ground points, and

canopy/building points. The data was next taken into a graphic environment to reclassify the erroneous points that may remain in the

LIDAR point cloud after auto filter.

Process Date/Time: 2007-06-11 00:00:00

Process Step 2

CC ID: 1139334
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 for data storage purposes and Digital Coast provisioning:

1. The data were converted from UTM, Zone 16 coordinates to geographic (NAD83) coordinates;

2. The data were filtered to remove elevation outliers;

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

4. The LAS header fields were sorted by latitude and updated;

Process Date/Time: 2011-05-10 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity LAS

Catalog Details

Catalog Item ID: 49878
GUID: gov.noaa.nmfs.inport:49878
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:22+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