gov.noaa.csc.maps:usace_2005_nync DOC/NOAA/NOS/CSC/CRS > Coastal Remote Sensing Program, Coastal Services Center, National Ocean Service, NOAA, U.S. Department of Commerce 20061114 http://www.csc.noaa.gov/lidar These data were collected by the Joint Airborne Lidar Bathymetry Technical Center of Expertise using the CHARTS system. The data includes hydrographic and topographic data. These data were collected as a part of the National Coastal Mapping Program to depict the elevations above and below water along the east coastal zone. 20051001 20051126 Ground Condition Complete As needed -78.60 -71.75 41.07 33.75 None Lidar Bathymetry Topography None New York Long Island North Carolina None October 2005 November 2005 None These data depict the heights at the time of the survey and are only accurate for that time. Any conclusions drawn from analysis of this information are not the responsibility of NOAA, the Coastal Services Center, or JALBTCX. Coastal Remote Sensing Program TCM Project Scientist mailing and physical address

2234 South Hobson Avenue

Charleston South Carolina 29405 United States (843) 740-1200 csc@csc.noaa.gov Acknowledgement of the Joint Airborne Lidar Bathymetry Center of Expertise (JALBTCX) would be appreciated in any publications or derived products. Data are not attributed. N/A These data are not attributed. Lidar data between different flight lines matched within 0.20 meters These data covered the required survey area with minimal gaps in data coverage. The data postings are very consistent with postings at about 1.3m density. The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than +/- 3.0m. 3.0 2 Sigma The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better than +/- 0.30m. 0.30 2 Sigma JALBTCX(comp.) Unpublished material Unknown globe disc Unknown Unknown ground condition Lidar surface This is an xyz dataset collected and provided by CESAM-OP-J, JALBTCX. Acquisition Data were acquired using a SHOALS-1000T. Sensor orientation was measured using a POS AV 410, while images were acquired at 1Hz using a Duncantech DT4000 digital camera. Prior to survey PDOP was checked and missions planned to avoid PDOP greater than 3.5. During survey the plane was always within 30km of a GPS ground control point, to provide a good quality position solution. Final positions were determined using a post-processed inertially aided Kinematic GPS (KGPS) solution. GPS ground control data were acquired at 1Hz. Data received by the airborne system were continually monitored for data quality during acquisition operations. Display windows showed coverage and information about the system status. In addition, center waveforms at 5Hz were shown. All of this information allowed the airborne operator to assess the quality of data being collected. Data were processed in the field to very coverage and data quality. Unknown Processing Data were processed using the SHOALS Ground Control System (GCS). The GCS includes links to Applanix POSPac software for GPS and inertial processing, and IVS Fledermaus software for data visualization, 3D editing and tie-line analysis. Data were processed in NAD83 horizontal and vertical datum. Data were later converted to the NAVD88 vertical datum using the GEOID03 model. Fugro in-house utilities were used to extract XYZ data from the native LIDAR files and split the data in to pre-defined boxes, each covering approximately 5km of shoreline. ASCII files include Longitude Latitude Elevation Date Time Intensity (Topo) or Depth Confidence (Hydro). 20060422 The NOAA Coastal Services Center (CSC) received files in ascii format. The files contained lidar intensity and elevation measurements. CSC performed the following processing on the data to make it available within the Lidar Data Retrieval Tool (LDART): 1. Each hydro/topo last return ascii file was converted to las files. Default values for which there is no corresponding input were assigned as follows for each las elevation data record: intensity = 0, retn = 1, nret = 1, class = 0 2. The las files were sorted by latitude and the las header fields were updated. 20060801 Coastal Remote Sensing Program TCM Project Scientist mailing and physical address

2234 South Hobson Avenue

Charleston South Carolina 29405 United States (843) 740-1200 csc@csc.noaa.gov Unknown Point Point 9.40816787877027e-10 7.09328887560044e-10 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 North American Vertical Datum of 1988 0.01 meters Explicit elevation coordinate included with horizontal coordinates NOAA Coastal Services Center Coastal Remote Sensing Program Manager mailing and physical address

2234 South Hobson Avenue

Charleston SC 29405-2413 none csc@csc.noaa.gov Any conclusions drawn from analysis of this information are not the responsibility of NOAA or the Coastal Services Center. This data can be obtained on-line at the following URL: http://www.csc.noaa.gov/ldart. DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@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. 20070405 20061115 NOAA Coastal Services Center Keil Schmid Metadata Specialist mailing and physical address

2234 South Hobson Avenue

Charleston SC 29405-2413 none metadata@csc.noaa.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998