Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey Coastal and Marine Geology Program
Other_Citation_Details:
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.
Project PROBE Leg II - Final Report and Archive of Swath Bathymetric Sonar, CTD/XBT and GPS Navigation Data Collected During USGS Cruise 03008 (NOAA Cruise RB0303) Puerto Rico Trench 18 February - 7 March, 2003
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2004-1400
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
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).
Purpose:
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.
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 200209
Single_Date/Time:
Calendar_Date: 200302
Single_Date/Time:
Calendar_Date: 200303
Single_Date/Time:
Calendar_Date: 200304
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -68.9
East_Bounding_Coordinate: -62.6
North_Bounding_Coordinate: 20.3
South_Bounding_Coordinate: 18.7
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: USGS
Theme_Keyword: National Oceanic and Atmospheric Administration
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.
Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 8.3.0.800
Data_Quality_Information:
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Vertical_Positional_Accuracy:
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Publication_Date: Unpublished Material
Title: SeaBeam MB41 raw data files
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20020924
Ending_Date: 20020930
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: SeaBeam
Source_Contribution:
The raw data files were processed to create a bathymetric mosaic
Process_Step:
Process_Description:
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.
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).
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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Format_Version_Number: 3.2
Format_Specification: GeoTIFF Image
Format_Information_Content:
The four files (gtsurfmod.tif, gtsurfmod.tfw, gtsurfmod.prj, and gtsurfmod_metadata.txt )
File_Decompression_Technique: zip
Transfer_Size: 10.856
Digital_Transfer_Option:
Offline_Option:
Offline_Media: DVD-ROM
Recording_Capacity:
Recording_Density: 4,700
Recording_Density_Units: Mbyte
Recording_Format: UDF
Compatibility_Information:
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.
Fees: none
Technical_Prerequisites:
The user may want a program capable of converting or processing "geotiff" images.
