gov.noaa.csc.maps:2007_USACE_CNMI_m561 Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) 20071211 Charleston, SC NOAA's Ocean Service, Coastal Services Center (CSC) http://csc-s-maps-q.csc.noaa.gov/dataviewer/viewer.html?keyword=lidar http://www.csc.noaa.gov/lidar http://www.csc.noaa.gov These files contain topographic lidar data collected by the CHARTS system in Saipan, CNMI. This file contains both first and last returns. The data points representing bare earth have been classified as such using TerraScan. Classification values are: Class 1: Unclassified Class 2: Ground The purpose of this survey is to collect topographic lidar across the island of Saipan to support the production of 2-foot contours. This data set was collected for the CNMI Coastal Resources Management Office, CNMI Department of Public Works, and the CNMI Emergency Management Office. The U.S. Army Corps of Engineers, Honolulu District project manager was Milton Yoshimoto (contact number: 808-438-2250). A footprint of this data set may be viewed in Google Earth at: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/cnmi/2007_JALBTCX_Topo_Saipan_Lidar.kmz 20070506 20070509 Ground Condition Complete As Needed 145.689546 145.830793 15.290357 15.091355 ISO 19115 Topic Category elevation None Bathymetry/Topography Lidar Elevation None United States Territory Commonwealth of the Northern Marianas Islands (CNMI) Saipan None May 2007 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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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. Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) would be appreciated in any publications or derived products. These data are not attributed. N/A These data are not attributed. The data provided in this file were tested against ground truthed data. At these locations the lidar data matched within 0.20 meters, and different flight line data agreed within 0.20 meters. These data covered the required survey area with minimal gaps in data coverage except near tops of mountains. These gaps are caused when the ground elevation rises so steeply that the lidar swath (based on maximum scan angles and altitude) from adjacent flight lines no longer overlap. These gaps are at elevations above the maximum required for this project. The data postings are very consistent with nominal posting density of 1.3 meters. The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than +/- 0.75m. 0.75 1 Sigma The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better than +/- 0.20m. 0.20 1 Sigma JALBTCX (comp.) 2007 Unknown 1 globe These data were collected by JALBTCX as project number 07006. hard drive 20070506 20070509 ground condition Lidar Lidar These data were collected using the CHARTS system. It is owned by the Naval Oceanographic Office (NAVO) and operated through contract. The system collects topographic lidar data at 20kHz and hydrographic data at 3kHz. The system also collects 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 equipment. Raw data are collected and transferred to the office for downloading and processing in SHOALS GCS software. GPS data are processed using POSPac software and the results are combined with the lidar data to produce 3-D positions for each lidar shot. These data are edited using Fledermaus software where anomalous data are removed from the dataset. The edited data are written to the national grid system 1 km tiles using chartsLAS, a program written by NAVO. This program reads data from the original binary format files and produces separate ASCII files for first and last return data. Using a model calculated by NAVO, data were converted from ellipsoid to Mean Sea Level heights using the program datum_shift, written by NAVO. The model file Saipan_Adjustment.fin was used for the corrections. The LAS files output form chartsLAS were read into TerraScan and filters were applied to classify ground points. Points designated as ground are assigned a classification value "2" and all other points are assigned the classification value "1" which represents an unclassified state. 20071114 JALBTCX Data Production Manager mailing and physical address

7225 Stennis Airport Road, STE 100

Kiln MS 39556 USA 228-252-1103 228-252-1111 228-252-1133 shoals-info@sam.usace.army.mil 8 am to 5 pm Monday through Friday The NOAA Coastal Services Center (CSC) received files in LAS format. The files contained Lidar intensity and elevation measurements. CSC performed the following processing on the data for storage and provisioning purposes within Digital Coast: 1. The data were converted from UTM coordinates to geographic coordinates (WGS84). 2. The LAS georeferencing information was updated to reflect the tidal vertical datum Mean Sea Level (MSL). 3. The LAS headers were updated and sorted by latitude. 201012 NOAA Coastal Services Center Clearinghouse Manager mailing and physical

2234 South Hobson Ave.

Charleston SC 29405 US 843-740-1210 clearinghouse@noaa.gov The NOAA National Geophysical Data Center (NGDC) received Lidar data files by ftp. The data received compressed containing LiDAR data from the NOAA Coastal Services Center. The data are currently being served via Digital Coastl at http://www.csc.noaa.gov/digitalcoast/. The data can be used to re-populate the system. The data are provided in LAS format. LAS format is an industry standard for serving LiDAR data. The data are exclusively in geographic coordinates, however, the datums used vary. Most are NAD 83, however some are in ITRF. Vertical systems include both ellipsoid (ITRF and NAD 83) and NAVD 88. For NAVD 88 values, Geiod 03 is primarily used; however, data received in NAVD 88 prior to 2003 was processed using Geoid 99. 20110503 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Pamela Grothe Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6120 (303) 497-6958 (303) 497-6513 pamela.grothe@noaa.gov 7:30-5:00 Mountain Contact Data Center 0.00000001 0.00000001 Decimal degrees WGS 1984 Geodetic Reference System 80 6378137.0000 298.257222 Mean Sea Level 0.01 Meters Explicit elevation coordinate included with horizontal coordinates NOAA Coastal Services Center Clearinghouse Manager mailing and physical

2234 South Hobson Ave.

Charleston SC 29405-2413 843-740-1210 clearinghouse@noaa.gov Downloadable Data Any conclusions drawn from the analysis of this information are not the responsibility of JALBTCX, the Coastal Services Center, or its partners. This data can be obtained on-line at the following URL: http://www.csc.noaa.gov/lidar DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Pamela Grothe Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6120 (303) 497-6958 (303) 497-6513 pamela.grothe@noaa.gov 7:30-5:00 Mountain Contact Data Center Disclaimer While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. The National Geophysical Data Center serves as the archive for this LIDAR data. NGDC should only be contacted for this data if it cannot be obtained from NOAA Coastal Services Center. 20111119 20111119 20121119 NOAA Coastal Services Center Clearinghouse Manager mailing and physical Charleston SC 29405-2413 843-740-1210 clearinghouse@noaa.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 http://www.ncddc.noaa.gov/ Content Specification for Metadata in the National Coastal Data Development Center's Data Catalog Version 2.0