50072 usace2008_mi_m518_metadata Data Set Published / External 49401 Lidar - partner (no harvest) Project Completed 2009 These files contain topographic and bathymetric lidar data collected by the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system along the west coast of Michigan from Berrien County to Leelanau County, along the Lake Michigan coastline from 28 July - 16 Sept 2008. Lidar intensity data was also collected. CHARTS integrates topographic and bathymetric lidar sensors, a digital camera and a hyperspectral scanner on a single remote sensing platform for use in coastal mapping and charting activities. Data coverage generally extends along the coastline from the waterline inland 500 meters (topography) and offshore 1,000 meters or to laser extinction (bathymetry). The topographic lidar sensor has a pulse repetition rate of 9 kHz at 1064 nm (near-infrared wavelength). The bathymetric lidar sensor has a pulse repetition rate of 1 kHz at 532 nm (green wavelength). Native lidar data is not generally in a format accessible to most Geographical Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 (NAD83). Vertical positions are referenced to the NAD83 ellipsoid and provided in meters. Original contact information: Contact Org: JALBTCX Title: Data Production Manager Phone: 228-252-1111 Email: shoals-info@sam.usace.army.mil These data were collected as a part of the National Coastal Mapping Program to depict the elevations above the water for the First Return, Last Return, or Hydro in the Michigan coastal zone. 10716 Theme ISO 19115 Topic Category elevation Theme ASCII XYZ Theme CHARTS Theme Intensity Theme JALBTCX Theme SHOALS Theme U.S. Army Corps of Engineers Temporal 2008 Temporal August Temporal July Temporal September Office for Coastal Management Charleston SC Data Set As Needed Any conclusions drawn from the analysis of this information are not the responsibility of JALBTCX, the Office for Coastal Management or its partners. Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) would be appreciated in any publications or derived products. Data Steward 2009 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 2009 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 2009 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 2009 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 -86.838156 -85.915215 44.989667 41.748285 Range 2008-07-28 2008-09-16 Yes Unclassified This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer; 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. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=518 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/geoid18/518/index.html Bulk Download Simple download of data files. 2016-05-23 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. Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.6.1500 These data are not attributed. | Quantitative Value: N/A | Quantitative Test Explanation: These data are not attributed. The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than +/- 0.75m.; Quantitative Value: 0.75 meters, Test that produced the value: 1 Sigma The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better than +/- 0.20m.; Quantitative Value: 0.20 meters, Test that produced the value: 1 Sigma Cloud Cover: Unknown Not provided The data provided in this file were tested against ground truth data. At these locations the lidar data matched within 0.20 meters, and different flight line data agreed within 0.20 meters. 1 These data were collected using the CHARTS system. It is owned by the Naval Oceanographic Office and operated through contract. The system collects topographic lidar data at 9kHz, bathymetric lidar data at 1kHz and RGB imagery at 1Hz. A CASI-1500 hyperspectral line scanner is integrated with the system as well. Aircraft position, velocity and acceleration information are collected through a combination of Novatel and POS A/V 410 equipment. All raw data streams are transferred to the office for downloading and processing in SHOALS GCS software. Aircraft position data are processed using POSPac software and the results are combined with the lidar data to produce 3-D positions for each lidar shot. Upon inspection and QA/QC in the software packages Fledermaus and PFM_ABE, anomalous data are flagged as invalid. PFM_ABE's chartsLAS module then converts all valid data from ellipsoid to orthometric heights based on the NGS' GEOID03 model and exports data as a series of first return topography (TF), last return topography (TL) and bathymetry (H) ASCII files. The bathymetry files contain all of the returns from the bathymetric sensor which include returns both above and below the water. The National Geodetic Survey's (NGS) GEOID03 model was used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). The 3-D position data were sub-divided into a series of ASCII file products, with each covering approximately 5 kilometers of shoreline. The file index was provided by the shape file, "mi_michigan_boxes.shp", and the numbers used to identify files are in the "Box" field of the shape file. The data file naming convention is based on the year, project, area name, "Box" number and product type (topographic or bathymetric). An example file name is "2008_NCMP_MI_Michigan_07_ASCII", where 2008 is the year of data collection, NCMP is the project under which data were collected, MI_Michigan is the area of data collection, 07 is the "Box" number and ASCII is the product type. The ASCII columns are Longitude, Latitude, UTM Zone, Easting, Northing, Elevation (orthometric), Elevation (ellipsoid), Date, Time, and Intensity. 2009-01-01T00:00:00 2 The NOAA Office for Coastal Management (OCM) received topo and hydro files in ASCII format. The files contained LiDAR elevation and intensity measurements. The points were classed as 'never classified.' The data were provided in Geographic coordinates and ellipsoidal heights and in orthometric heights. OCM performed the following processing to the ellipsoidal height data to make it available within the Digital Coast: 1. LASEdit was used to convert the ASCII formatted files to las format. 2. The hydro points classification was changed from 'never classified' to class 11, 'bathymetry'. The topo points classification remains as class 0, 'never classified'. 3. The LAS data were sorted by latitude and the headers were updated. 2009-11-01T00:00:00 gov.noaa.nmfs.inport:50072 Anne Ball 2017-11-15T15:24:06 SysAdmin InPortAdmin 2022-08-09T17:11:37 2022-03-16 OCM Partners OCMP 1002 Public No No 2022-03-16 1 Year 2023-03-16