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Short Citation:
OCM Partners, 2022: 2007 Northwest Florida Water Management District (NWFWMD) Lidar: Holmes County, https://www.fisheries.noaa.gov/inport/item/49873.

Item Identification

Title: 2007 Northwest Florida Water Management District (NWFWMD) Lidar: Holmes County
Short Name: nwfwmd2007_holmes_m576_metadata
Status: Completed
Publication Date: 2011-04
Abstract:

LIDAR-derived binary (.las) files containing points classified as bare-earth and canopy (first return) were produced for the 2007/2008 Northwest Florida Water Management District - 5 Counties (Calhoun, Holmes, Washington, Jackson and Liberty), Florida lidar mapping project. The files were provided in a scheme of FDEM-derived 5,000 x 5,000 foot (1500 x 1500 meter) tiles. When initially processed, horizontal mapping units were in UTM meters, vertical mapping units are in U.S. survey feet. The total mapping area covers approximately 2102 square miles.

Original contact information:

Contact Name: Mr John Crowe

Contact Org: Northwest Florida Water Management District

Title: Associate Hydrologist, Division of Resource Management

Phone: 850-539-5999

Email: ron.bartel@nwfwmd.state.fl.us

Purpose:

FEMA map modernization, digital elevation model, planning, topographic interpretation

Notes:

10517

Supplemental Information:

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

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/576/supplemental/2007_NWFWMD_Lidar_Holmes_County.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 2007
None 2008

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 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.

Support Roles

Data Steward

CC ID: 681427
Date Effective From: 2011-04
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: 681429
Date Effective From: 2011-04
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: 681430
Date Effective From: 2011-04
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: 681428
Date Effective From: 2011-04
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: 1139281
W° Bound: -86.053
E° Bound: -85.482
N° Bound: 31.006
S° Bound: 30.694

Extent Group 1 / Time Frame 1

CC ID: 1139280
Time Frame Type: Range
Start: 2007-11-12
End: 2008-01-20

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. 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 base critical applications on this data set without full

awareness of potential limitations.

Distribution Information

Distribution 1

CC ID: 741825
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=576
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: 741826
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/576/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 741828
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 741829
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 681455
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 681454
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: 718453
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 741827
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. | Quantitative Value: n/a | Quantitative Test Explanation: n/a

Horizontal Positional Accuracy:

Horizontal accuracy is verified in three tests. During bore sighting, adjoining flight lines are view in profile and hard edged features are observed and if necessary the flight lines are adjusted for good relative horizontal and vertical fit. The second test for horizontal accuracy is by comparing raw contours from each flight line against adjoining flight lines 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 NSSDA vertical accuracy specifications of 1.2 ft.; Quantitative Value: 0.149352 meters, Test that produced the value: This value is measured as RMSEz.; Quantitative Value: 0.15448 meters, Test that produced the value: This value is measured as vertical accuracy.

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 flight line data are performed; this process is known as bore sighting. The flight lines are compared to evaluate both their relative and absolute accuracies.

Lineage

Sources

Ground Control

CC ID: 1139275
Publish Date: 2007-03-17
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: 1139276
Publish Date: 2007-03-17
Extent Type: Range
Extent Start Date/Time: 2007-11-12
Extent End Date/Time: 2008-01-20
Source Contribution:

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

Process Steps

Process Step 1

CC ID: 1139277
Description:

LIDAR data was collected using Merrick's ALS50 Phase 2 sensor. The raw data was verified in MARS software for complete coverage of the project area, and bore sighted to align the flight lines. 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: 1139278
Description:

The NOAA Office for Coastal Management (OCM) received the lidar files in las format. The files contained lidar intensity

and elevation measurements. OCM performed the following processing for data storage and Digital Coast provisioning purposes:

1. Data converted from UTM coordinates to geographic coordinates.

2. Data converted from NAVD88 heights to ellipsoid heights using GEOID03.

3. The LAS data were sorted by latitude and the headers were updated.

Process Date/Time: 2011-04-01 00:00:00

Catalog Details

Catalog Item ID: 49873
GUID: gov.noaa.nmfs.inport:49873
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