gov.noaa.nmfs.inport:49821 eng UTF8 dataset OCM Partners resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 2012 MDEQ-FEMA Madison-Yazoo Lidar Survey ms2012_mdeq_fema_madison_yazoo_m2561_metadata 2013-09-16 publication NOAA/NMFS/EDM 49821 https://www.fisheries.noaa.gov/inport/item/49821 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://coast.noaa.gov/dataviewer WWW:LINK-1.0-http--link Citation URL Online Resource download https://coast.noaa.gov WWW:LINK-1.0-http--link Citation URL Online Resource download 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. 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. Bryan Daniel (Atlantic Group), Josh Helton (Atlantic Group), Patrick Robinson (Atlantic Group), Paul Weyant (Atlantic Group), Barbara Yassin (MDEQ) completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian asNeeded https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2561/supplemental/ms2012_mdeq_fema_madison_yazoo.KMZ This graphic shows the extents of the lidar survey of Madison and Yazoo counties. kmz Bare Earth Ground Control Land Surface Light Detection and Ranging Point Cloud theme Winter temporal Lidar - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2012 MDEQ-FEMA Madison-Yazoo Lidar Survey [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49821. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions 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. otherRestrictions 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. unclassified vector eng; US elevation -90.666399 -89.726054 32.392363 32.992774 | Currentness: Ground Condition 2012-02-19 | Currentness: Ground Condition 2012-02-20 | Currentness: Ground Condition 2012-02-21 | Currentness: Ground Condition 2012-02-22 | Currentness: Ground Condition 2012-02-23 | Currentness: Ground Condition 2012-02-24 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 NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information distributor https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2561 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2561/index.html WWW:LINK-1.0-http--link Bulk Download Simple download of data files. download dataset 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. 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. 2012-01-01T00:00:00 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. 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. 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. 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). 2013-09-16T00:00:00