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Short Citation:
OCM Partners, 2024: 2012 MDEQ-FEMA Madison-Yazoo Lidar Survey, https://www.fisheries.noaa.gov/inport/item/49821.

Item Identification

Title: 2012 MDEQ-FEMA Madison-Yazoo Lidar Survey
Short Name: ms2012_mdeq_fema_madison_yazoo_m2561_metadata
Status: Completed
Publication Date: 2013-09-16
Abstract:

The project entails the acquisition and processing of LiDAR for approximately 1,265 square miles covering areas of Madison and Eastern Yazoo Counties. Collect and deliver high-density elevation point data derived from multiple-return light detection and ranging (LiDAR) measurements for use in supporting topographic analysis, including applications such as flood plain mapping. Hydro enforced breaklines were collected within the identified Special Flood Hazard Area for Madison County, MS including an additional 221sq. miles in the heavily developed areas in Madison County, and 112 sq. miles in a buffered area along the Big Black River in Yazoo County, MS. The data will be delivered as LiDAR Bare Earth within the areas designated in areas of Madison and Eastern Yazoo Counties to aid in visual interpretation of Flood Basin elevations and for addition to the MDEM elevation dataset. Also included in the delivery was LiDAR Intensity data in Tiff format. The intensity values are a measure of the return signal strength. It measures the peak amplitude of return pulses as they are reflected back from the target to the detector of the LiDAR system. These intensity images are a very useful tool to clients and can be used as a substitute for orthophotos. All data will comply with mapping guidelines and specifications as stated in the FEMA Procedure Memorandum No.61.

Purpose:

Atlantic Group will provide LiDAR products to support MDEQ in supporting solutions for a variety of purposes including updating DFIRM maps, hydrologic modeling, transportation routing, floodplain mapping and assessment of natural hazards. Furthermore, the data sets can be utilized by the general public including engineers, surveyors, appraisers and others interested parties to evaluate transportation and land use planning.

Notes:

10465

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/geoid18/2561/supplemental/ms2012_mdeq_fema_madison_yazoo.KMZ

The MDEQ Tennessee-Tombigbee report may be accessed at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2561/supplemental/ms2012_mdeq_fema_madison_yazoo.pdf

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None Bare Earth
None Ground Control
None Land Surface
None Light Detection and Ranging
None Point Cloud

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None Winter

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
Data Presentation Form: las
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of the following: MDEQ, USGS, The Atlantic Group, NOAA, the Office for Coastal Management, or its partners.

Data Set Credit: Bryan Daniel (Atlantic Group), Josh Helton (Atlantic Group), Patrick Robinson (Atlantic Group), Paul Weyant (Atlantic Group), Barbara Yassin (MDEQ)

Support Roles

Data Steward

CC ID: 678746
Date Effective From: 2013-09-16
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: 678748
Date Effective From: 2013-09-16
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: 678749
Date Effective From: 2013-09-16
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: 678747
Date Effective From: 2013-09-16
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: 1134634
W° Bound: -90.666399
E° Bound: -89.726054
N° Bound: 32.992774
S° Bound: 32.392363

Extent Group 1 / Time Frame 1

CC ID: 1134628
Time Frame Type: Discrete
Start: 2012-02-19

Extent Group 1 / Time Frame 2

CC ID: 1134629
Time Frame Type: Discrete
Start: 2012-02-20

Extent Group 1 / Time Frame 3

CC ID: 1134630
Time Frame Type: Discrete
Start: 2012-02-21

Extent Group 1 / Time Frame 4

CC ID: 1134631
Time Frame Type: Discrete
Start: 2012-02-22

Extent Group 1 / Time Frame 5

CC ID: 1134632
Time Frame Type: Discrete
Start: 2012-02-23

Extent Group 1 / Time Frame 6

CC ID: 1134633
Time Frame Type: Discrete
Start: 2012-02-24

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/#/lidar/search/where:ID=2561

;

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. These data depict the heights at the time of the survey and are only accurate for that time.

Distribution Information

Distribution 1

CC ID: 741531
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2561
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: 741532
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2561/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 741534
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 741535
URL: https://coast.noaa.gov
URL Type:
Online Resource

URL 3

CC ID: 741536
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2561/supplemental/ms2012_mdeq_fema_madison_yazoo.KMZ
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the extents of the lidar survey of Madison and Yazoo counties.

Activity Log

Activity Log 1

CC ID: 678780
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 678779
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: 718392
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 741533
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Data Quality

Accuracy:

To ensure FEMA accuracy of the LiDAR data deliverables, the MGI team will provide MDEQ/Geology a survey plan that calls for the integration of 60 Fundamental Vertical Accuracy checkpoints. Fundamental Vertical Accuracy (FVA) testing will be assessed by using checkpoints in open terrain. FVA is calculated at the 95% confidence level using RMSEz x 1.9600.

Horizontal Positional Accuracy:

see accompanying report at https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2561/supplemental/ms2012_mdeq_fema_madison_yazoo.pdf; Quantitative Value: 0.49 meters, Test that produced the value: 0.49 m (1.64 ft). Horizontal Accuracy meets the NSSDA RMSE (r) of 2.20 ft and the NSSDA Accuracy (r) of 95% confidence level is 3.80 ft.

Vertical Positional Accuracy:

see accompanying report at https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2561/supplemental/ms2012_mdeq_fema_madison_yazoo.pdf; Quantitative Value: 0.11 meters, Test that produced the value: 0.11 m (0.37 ft). Vertical Accuracy meets the NSSDA RMSEz of 0.61 ft and the NSSDA Accuracy (z) of 95% confidence level is 1.19 ft.

Completeness Measure:

Cloud Cover: 0

Completeness Report:

All data is complete to contracted completeness

Conceptual Consistency:

Utilizing an Optech 3100 multi-return system, Light Detection and Ranging (LiDAR) data will be collected to support the generation of a high-resolution point-cloud. The system consists of geodetic GPS positioning (AGPS), orientation derived from high-end inertial sensors (IMU), and a high-accuracy laser. The sensor is attached to the aircrafts underside and emits rapid pulses of light that are used to determine distances between the plane and terrain below. LIDAR data will be processed to yield a ground surface (Bare Earth). LAS formatted data will be delivered to MDEQ/Geology classified as bare earth as well as above ground points.

Lineage

Process Steps

Process Step 1

CC ID: 1134622
Description:

The flight path will be planned as a series of parallel flight lines with cross flight lines for the purposes of quality control. In addition, the flight plan will include flight line distances of 45 kilometers or less and zigzag flight line collection as a result of the inherent IMU drift associated with IMU systems. A digital flight line layout using OPTECH ALTM NAV flight design software for direct integration into the aircraft flight navigation system was created and used.

Process Date/Time: 2012-01-01 00:00:00

Process Step 2

CC ID: 1134623
Description:

LiDAR Sensor Calibration and LiDAR Processing. LIDAR calibrations are performed to determine and eliminate systematic bias that may occur within the hardware of the ALTM system. The systematic bias that are corrected involve scale, roll, and pitch. In addition to the calibration process regarding sensor installation, for every mission, the runway is kinematically surveyed by making three passes. The LiDAR system is flown at right angles over the runway several times and residuals are generated from the processed data.

Process Step 3

CC ID: 1134624
Description:

Breaklines were captured within the identified SFHA for Madison County, MS, including a buffered 112 sq. mile area along the Big Black River in Yazoo County, MS. The breaklines are significant hydrological features that are appropriate to support the future development of 2-foot contours meeting a 1.19-foot absolute vertical accuracy at the 95% confidence level. Horizontal accuracy is computed using the formula RMSE (z) x 1.7308: 1-inch = 100 feet equivalent (Accuracy = 2.2 feet or 0.67 meters) as defined by the ASPRS Guidelines: Accuracy Reporting for topographic Data. This guideline implements the National Standard for Spatial Data Accuracy (NSSDA) for testing of topographic data.

Process Step 4

CC ID: 1134625
Description:

Digital Elevation Models (DEMs) are generated in spatial software and have a final cell size of 4 feet. Each DEM is a 32-bit floating point GeoTiff.

Process Step 5

CC ID: 1134626
Description:

The NOAA Office for Coastal Management (OCM) received topographic files in .laz format from the Mississippi Department of Environmental Quality (MDEQ). The files contained lidar elevation measurements. The data were received in Mississippi State Plane West 2300, NAD83 coordinates and were vertically referenced to NAVD88 using the Geoid09 model. The vertical units of the data were feet. OCM performed the following processing for data storage and Digital Coast provisioning purposes:

1. The topographic laz files were converted from a Projected Coordinate System (Mississippi State Plane West 2300) to a Geographic Coordinate system (NAD 83).

2. The topographic laz files' horizontal units were converted from feet to decimal degrees.

3. The topographic laz files were cleaned of error points above 492 ft and below 114 ft.

4. The topographic laz files' were converted from NAVD88 elevations to NAD83 ellipsoidal elevations using Geoid03

5. Classification 11 was moved to classification 12 due to OCM system requirements (class 11 is reserved for bathymetric points, though these points are overlap points, Class 12).

Process Date/Time: 2013-09-16 00:00:00

Catalog Details

Catalog Item ID: 49821
GUID: gov.noaa.nmfs.inport:49821
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