49828 ms2015_usgs-mdeq_ms_coastal_ql2_m5168_metadata Data Set Published / External 49401 Lidar - partner (no harvest) Project Completed 2017-04-15 This task is issued under USGS Contract No. G10PC00057, Task Order No. G15PD00091. This task order requires lidar data to be acquired over approximately 5981 square miles. The lidar was collected and processed to meet a maximum Nominal Post Spacing (NPS) of 0.7 meter. The NPS assessment is made against single swath, first return data located within the geometrically usable center portion (typically ~90%) of each swath. The data was collected using a Leica ALS70 500 kHz Multiple Pulses in Air (MPiA) lidar sensor and a Chiroptera II sensor. The ALS70 sensor collects up to four returns per pulse, as well as intensity data, for the first three returns. If a fourth return was captured, the system does not record an associated intensity value. The Chiroptera II sensor provides 35 kHz bathymetric data and up to 500 kHz topographic data. The system acquires bathymetric lidar, topographic lidar and 4-band 80 MP digital camera imagery simultaneously. For this project, the flight parameters were used to provide 100% coverage. Two multiple pulse in air zones were used. The Coastal delivery was processed and projected in Mississippi State Plane East Zone, NAD83(2011). The vertical datum used for the task order was referenced to NAVD88, GEOID12A/12B in units of US Survey Feet. These data were converted to geographic coordinates with elevation in meters above the ellipsoid for ingest into the NOAA Digital Coast. Further projection and datum processing may have occurred (see process descriptions). Provide current elevation data in Coastal Mississippi. 10472 A footprint of this data set may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5168/supplemental/ Lidar report for this data set is available here: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5168/supplemental/Mississippi_Coastal_QL2_Lidar_with_3DEP_Extension_Lidar_Report.pdf Theme ISO 19115 Topic Category elevation Office for Coastal Management Charleston SC Data Set As Needed las Lidar points in LAZ format (Classes 1,2,7,9,10,17,18) none Any conclusions drawn from the analysis of this information are not the responsibility of USGS, MDEQ, Woolpert, NOAA, or their partners. Data Steward 2017-04-15 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Distributor 2017-04-15 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Metadata Contact 2017-04-15 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Point of Contact 2017-04-15 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition -89.853305 -88.390953 31.016904 30.173904 Range 2015-01-28 2015-03-28 Yes Unclassified This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5168; None 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. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5168 Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5168/index.html Bulk Download Simple download of data files. https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5168/supplemental/ms2015_usgs_mdeq_coastal_m5168.kmz Browse Graphic Browse Graphic kmz This graphic shows the coverage of the 2015 lidar QL2 project Coastal Mississippi. https://coast.noaa.gov Online Resource https://coast.noaa.gov/dataviewer Online Resource 2017-08-23 Date that the source FGDC record was last modified. 2017-11-14 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. 2018-02-08 Partial upload of Positional Accuracy fields only. 2018-03-13 Partial upload to move data access links to Distribution Info. None reported; Quantitative Value: 1 meters, Test that produced the value: Explicit horizontal accuracy is not reported in the accuracy report provided. Assumptions of 1 meter. The vertical accuracy statistics were calculated by comparison of the lidar bare earth points to the ground surveyed QA/QC points. Mississippi Coastal QL2 Lidar was processed and delivered in NAD1983(2011) Mississippi State Plane East, NAVD88 Geoid12A meters.; Quantitative Value: 0.166 meters, Test that produced the value: LAS Swath Fundamental Vertical Accuracy (FVA) Tested 0.166 meters fundamental vertical accuracy at a 95 percent confidence level, derived according to NSSDA, in open terrain using (RMSEz) x 1.96000 Tested against the TIN using independent check points. The LiDAR data is visually inspected for completeness to ensure that are no gaps between flight lines. All formatted data are validated using commercial GIS software to ensure proper formatting and loading prior to delivery. 1 All airborne GNSS and IMU data was post-processed and quality controlled using Applanix MMS software. GNSS data was processed at a 1 and 2 Hz data capture rate and the IMU data was processed at 200 Hz. Position and orientation data were acquired in the aircraft using a NovAtel SPAN with LCI-100C IMU. All data were post-processed using NovAtel Inertial Explorer software to provide a tightly-coupled kinematic position and orientation solution. 2015-01-01T00:00:00 2 When the sensor calibration, data acquisition, and GPS processing phases were complete, the formal data reduction processes by Woolpert lidar specialists included: - Processed individual flight lines to derive a raw "Point Cloud" LAS file. Matched overlapping flight lines, generated statistics for evaluation comparisons, and made the necessary adjustments to remove any residual systematic error. - Calibrated LAS files were imported into the task order tiles and initially filtered to create a ground and non-ground class. Then additional classes were filtered as necessary to meet client specified classes. - Once all project data was imported and classified, survey ground control data was imported and calculated for an accuracy assessment. As a QC measure, Woolpert has developed a routine to generate accuracy statistical reports by comparisons against the TIN and the DEM using surveyed ground control of higher accuracy. The lidar is adjusted accordingly to meet or exceed the vertical accuracy requirements. - The lidar tiles were reviewed using a series of proprietary QA/QC procedures to ensure it fulfills the task order requirements. A portion of this requires a manual step to ensure anomalies have been removed from the ground class. - The lidar LAS files are classified into the Default (Class 1), Ground (Class 2), Low Noise (Class 7), Water (Class 9), Ignored Ground (Class 10), Bridge Decks (Class 17) and High Noise (Class 18) classifications. - FGDC Compliant metadata was developed for the task order in .xml format for the final data products. - The horizontal datum used for Coastal delivery was referenced to Mississippi State Plane East Zone, NAD83(2011). The vertical datum used for the task order was referenced to NAVD88, GEOID12A/12B in units of US Survey Feet. 2015-01-01T00:00:00 3 The NOAA Office for Coastal Management received the LAS files in from Mississippi DEQ. The data was received in Mississippi State Plane East (zone 2301) horizontal coordinates in US survey feet with vertical coordinates referenced to NAVD88 (Geoid12a) in feet. The Digital Coast performed the following processing for data storage and Digital Coast provisioning purposes: 1. Data were reprojected to geographic NAD83(2011) coordinates in decimal degrees. 2. The vertical coordinates were transformed to ellipsoidal heights in meters using Geoid12a. 2017-04-01T00:00:00 gov.noaa.nmfs.inport:49828 Anne Ball 2017-11-15T15:22:35 SysAdmin InPortAdmin 2022-08-09T17:11:36 2022-03-16 OCM Partners OCMP 1002 Public No No 2022-03-16 1 Year 2023-03-16