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
Geologic features in the Puerto Rico trench are remotely sensed, monitored, collected, studied, and analyzed. This data set was colorized by depth and converted to sun illuminated raster imagery; it was collected and processed during the U.S. Geological Survey science cruise 03008 in collaboration with National Oceanic and Atmospheric Administration 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 sun illuminate image is used in Geographic Information Science, i.e. discipline, which uses Geographic Information Systems as a tool to understand features in the trench and make interpretations of the geologic/bathymetric aspects therein. The intentions of this data set are to provide qualitative and quantitative visual information about the trench so that natural hazards such as earthquakes and tsunamis can be better understood.
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 200302
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: U.S. Geological Survey
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: 2004
Title: SeaBeam MB41 raw data files
Geospatial_Data_Presentation_Form: raster digital data
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
Source_Information:
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20030218
Ending_Date: 20030407
Source_Currentness_Reference: ground condition
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 color scale by depth with sun illumination model at elevation 30 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).
Resource_Description: Downloadable Data: Open-File Report 2004-1400: sun illuminated
Distribution_Liability:
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 (sunillum.tif, sunillum.tfw, sunillum.prj, and sunillum_metadata.txt)
File_Decompression_Technique: zip
Transfer_Size: 0.000
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 must have a program capable of reading and processing "geotiff" images.
