National Oceanic and Atmospheric Administration (NOAA) U.S. Geological Survey (USGS) 2004 remote-sensing image Open-File Report 2004-1400 Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey Coastal and Marine Geology Program Puerto Rico Trench Project Probes Legs I and III: 24 September - 30 September, 2002; and 28 August - 4 September, 2003, respectively relative to Leg II. http://pubs.usgs.gov/of/2004/ofr2004-1400/data/multibeam/gtsurfmod/gtsurfmod.tif.zip Uri ten Brink Castle Eugene Parker William Danforth Chris Polloni Toshi Uozumi Glynn Williams 2004 Open-File Report 2004-1400 Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program http://pubs.usgs.gov/of/2004/ofr2004-1400 gtsurfmod.tif The Puerto Rico Trench is a tectonic plate boundary where the North American Plate slides by and descends under the Caribbean Plate. Although much of the trench lies within the United States of America's Exclusive Economic Zone (EEZ), surprisingly few surveys have been conducted there during the past 25 years. This data set is a grey toned surface model mosaic derived from the 150 meter grid made from the multibeam bathymetric data collected during the U.S. Geological Survey (USGS) science cruise 03008 in collaboration with National Oceanic and Atmospheric Administration (NOAA) Research Cruise RB0303 from 18 February to 7 March 2003, Leg II of III. (Leg I and III: 20020924 to 20020930 and 20030828 to 20030904, respectively). This high-resolution multibeam bathymetry image mosaic can be used in Geographic Information Science (GIS) to provide better perspective viewing and advanced analysis of geologic conditions in the Puerto Rico Trench. Remotely sensed features in the trench are studied and the information learned can be used to discern cause and effect of natural hazards such as earthquakes and tsunamis. en 200209200302200303200304 ground condition Complete None planned -68.9 -62.6 20.3 18.7 -69.285566-61.49725218.07624920.926518 General Coastal and Marine Geology Program USGS National Oceanic and Atmospheric Administration U.S. Geological Survey CMGP NOAA Woods Hole Science Center WHSC NOAA Hydrographic Survey-Atlantic Branch NOAA Office of Ocean Exploration seafloor mapping field activity serial number 03008 field activity number RB03-02 NOAA Cruise RB0303 raster grey scale image Seabeam Multibeam bathymetry shaded relief image General North America Atlantic Ocean Caribbean Sea Archipelago Muertos Trough Anegada Trough Antilles Arc Virgin Island Trough Caribbean Plate oceanselevationimageryBaseMapsEarthCoverISO 19115 Topic CategorygeoscientificInformation None Public domain data from the U.S. government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) and National Oceanic and Atmospheric Administration (NOAA) as the source of this information. Spatial Data Technician mailing and physical address

384 Woods Hole Road

Woods Hole Road MA 02543-1598 USA (508) 548-8700 x2280 (508) 457-2310 cpolloni@usgs.gov 8:00AM to 5:00PM Chris PolloniU.S. Geological Survey Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 8.3.0.800 Raster Dataset Unpublished Material disc 20020924 20020930 ground condition SeaBeam The raw data files were processed to create a bathymetric mosaic The data pipeline included transferring the SeaBeam MB41 raw data files from the SGI computer to a processing laptop via file transfer protocol (FTP). The raw files were converted using Caris 5.3 Hips Sips software. The processing crew maintained the same processing procedures as employed by NOAA hydrographic field units. Once the data was converted, a Digital Terrain Model was generated for visual detection of artifacts and missed depths. The next step entailed reviewing and editing the data with Caris Swath Edit, followed with Caris Sub Set mode editing. Both editing processes allowed the hydrographer to eliminate data points that were considered artifacts or out of context with the immediate benthic area. After editing, the weighted mead grid was re-generated with a grid resolution of 150 meters. A grey scale by depth with sun illumination model at elevation 45 and azimuth 45 was exported as a tif image with an associated world file. Castle E. Parker NOAA/EASC Hydrographer mailing and physical address

439 West York Street

Norfolk Virginia 23510 USA 757-441-6746 757-441-6601 castle.e.parker@noaa.gov Renamed the image file from PRT03_150interp_gy4545.tif to gtsurfmod.tif with associated world file. 2004 Chris Polloni U.S. Geological Survey Information Specialist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1589 USA (508) 548-8700 x2280 (508) 457-2310 cpolloni@usgs.gov 9AM to 5PM; M- F PRT03_150interp_gy4545.tif gtsurfmod.tif This image's coordinate system was re-assigned from a UTM Zone 19, NAD83 to a Geographic, Geodetic Model: WGS84 using Blue Marble's Geographic Transformer (Version 5.1). Glynn Williams U.S. Geological Survey Spatial Analyst (508) 548-8700 (508) 457-2310 gwilliams@usgs.gov 8:00AM to 4:30PM; M-F mailing and physical address

384 Woods Hole Road

Woods HoleMA02543-1598USA Blue Marble Geographic Transformer; v 5.1 gtsurfmod.tif gtsurfmod.tif 2003021820030407ground condition Raster String 80 Pixel210254140.0014390.00135681Upper LeftTRUENone1pixel codesFALSETIFF Decimal degrees 0.0000100.000010 D_WGS_1984 WGS_1984 6378137.0 298.25722356300003 GCS_WGS_1984row and column0.0014390.001356 Band_1 grey scale image with sun illumination image stored in TIFF format ESRI Table 256 ObjectID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. ObjectID OID 4 0 0 Value Value Integer 0 0 0 DN value 02551 Red Red Double 0 0 0 Green Green Double 0 0 0 Blue Blue Double 0 0 0 Uri ten Brink U.S. Geological Survey Research Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1589 USA (508) 548-8700 x2396 (508) 457-2310 utenbrink@usgs.gov 8AM to 5 PM; M-F Downloadable Data: Open-File Report 2004-1400:grey scale Although this dataset has been used by the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by NOAA or the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA or the USGS in the use of these data or related materials. TIFF 3.2 GeoTIFF Image The four files (gtsurfmod.tif, gtsurfmod.tfw, gtsurfmod.prj, and gtsurfmod_metadata.txt ) zip 10.856 0.000 DVD-ROM 4,700 Mbyte UDF The user must have a computer system with a DVD-ROM available. To browse the information contained on this DVD-ROM, the user must have a current WWW browser available. The user must also have software installed on their computer to unzip the archived file. none The user may want a program capable of converting or processing "geotiff" images. 20041102 Spatial Data Technician mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2290 (508) 457-2310 gwilliams@usgs.gov 8:00AM to 5:00PM; M- F Glynn WilliamsU.S. Geological Survey FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time en None None http://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 8.3.0.800gtsurfmod.tif-69.285566-61.49725220.92651818.0762491-69.285566-61.49735920.92651818.0768181 ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset 002file://\\Thunder\ofr2004-1400\data\multibeam\gtsurfmod\gtsurfmod.tifLocal Area Network0.000Raster Dataset 2154140.001439Degree21020.001356Degree 20041217183138002004121718313800 20041217 GCS_WGS_1984