Basalt Pillars on the High Rise Field

Available as - [Outline] - [SGML]

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Veronique Robigou
Originator: J.R. Delaney
Originator: D.S. Stakes
Publication_Date: 19930903
Publication_Time: Unknown
Title: Basalt Pillars on the High Rise Field
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Geophysical Research Letters
Issue_Identification: Vol. 20, No.17 pgs. 1887-1890
Publication_Information:
Publication_Place: Geophysical Research Letters
Publisher: American Geophysical Union
Other_Citation_Details:
The coverage was published as part of the article entitled: Large Massive Sulfide Deposits in a Newly Discovered Hydrothermal System, The High rise Field, Endeavour Segment, Juan de Fuca Ridge. All of the above citation information relates to that article.
Online_Linkage: <http://bromide.ocean.washington.edu/gis/>
Larger_Work_Citation:
Citation_Information:
Originator: National Science Foundation
Publication_Date: Unknown
Publication_Time: Unknown
Title: Ridge Observatory Experiment (ROBE)
Series_Information:
Publication_Information:
Other_Citation_Details:
NSF 95 132 Replaces NSF 93-134 The National Science Foundation continues to support the development of the RIDGE (Ridge Inter-Disciplinary Global Experiments) Initiative and invites proposals directed toward the program elements EXECUTIVE SUMMARY Over the coming years, RIDGE will initiate a comprehensive long-term program on the Juan de Fuca Ridge designed to conduct in-depth inquiries into the issues of how and why temporal change occurs along major sections of the global spreading center network. This document provides a framework for the first five years of a major, focused effort to examine change and covariation among the physical, chemical and biological components of a modern ridge crest environment. It also lays out the research motivation, site selection rationale, examples of potential experiments, infrastructure, and seagoing capabilities needed to conduct an ensemble of coordinated projects designed to explore the time domain in a well-studied, readily accessible portion of mid-ocean ridge crest. In broad terms, it lays out priorities in the form of phasing among key elements of the program.
Online_Linkage: <http://ridge.unh.edu/observatory/framework.html>
Description:
Abstract:
These data describe the location and extent of basaltic pillars found on the High Rise Field, Endeavour Segment, Juan de Fuca Ridge.
Purpose:
These data were created to aid in the description and discovery of the workings of the hydrothermal system found on the Endeavour Segment of the Juan de Fuca Ridge.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19910000
Range_of_Dates/Times:
Multiple_Dates/Times:
Currentness_Reference: Ground Condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -129.088800
East_Bounding_Coordinate: -129.0867
North_Bounding_Coordinate: 47.9705
South_Bounding_Coordinate: 47.9679
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Basalt Pillars
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Juan de Fuca Ridge
Place_Keyword: Endeavour Segment
Place_Keyword: High Rise Field
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: Sea Floor Spreading Ridge
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 1991 Alvin Dives
Access_Constraints: None
Use_Constraints:
Make reference to the source of the data on any hard copy products.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Organization_Primary:
Contact_Organization: University of Washington
Contact_Person: Russ McDuff
Contact_Position: Dept. of Oceanography
Contact_Address:
Address_Type: mailing address
Address:
University of Washington, School of Oceanography PO BOX 357940
City: Seattle
State_or_Province: WA
Postal_Code: 98195-7940
Contact_Voice_Telephone: (206) 543-3058
Contact_Facsimile_Telephone: (206) 543-3058
Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
Security_Information:
Cross_Reference:
Citation_Information:
Series_Information:
Publication_Information:

Data_Quality_Information:
Attribute_Accuracy:
Logical_Consistency_Report:
The locational information in this data set is related to the positional accuracy. The identification of the objects in the data set was interpreted from still, video and SONAR imagery and is subject to the interpretation of the investigators.
Completeness_Report:
The data for the dives made at this site and time are complete. More dives will be made in the future.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
These data were logged by the DSRV Alvin using an in-hull navigation system. The system uses the travel time of accoustic energy from the submersible to the transponders and back to the submersible (rather than submersible-transponder-ship). The accurracy was measured at +/- 1.5 meters.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 3
Horizontal_Positional_Accuracy_Explanation:
A full description of the tests used to compare the in-hull system with the conventional ACNAV ship navigation system.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Vertical control was provided by the pressure sensor and altimeter readings on the submersible. The vertical accuracy is +/- 2 meters.
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: 2
Vertical_Positional_Accuracy_Explanation:
A full description of the tests used to compare the in-hull system with the conventional ACNAV ship navigation system.
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Source_Time_Period_of_Content:
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Multiple_Dates/Times:
Process_Step:
Process_Description:
The data were collected and reviewed by the investigators for error and accuracy (see positional accuracy). Alvin's in-hull navigation system logged the data directly relative to the local tranducer grid. This coverage has since been coregistered to the Main Endeavour Field grid and the coverages then converted to UTM zone 9 coordinates.
Process_Date: Unknown
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Complete chain
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Local:
Local_Description:
Most data collected at the vent field scale in the Endeavour area have been referenced to the UW local ALVIN grid. As navigational precision (through use of "in-hull" data) and accuracy (by referencing to p-code GPS) has improved, there have been problems with registration of features within the vent field. All data collected here have been converted to UTM Zone 9 using the best location for the origin of the UW local ALVIN grid as 47 53.634N 129 09.871W.
Local_Georeference_Information:
The original data for the RIDGE Multibeam Synthesis Project Area 12 Grid was collected by NOAA/ORD/ERL/PMEL investigators from the NOAA ships Surveyor and Discoverer. These data can be obtained from their web //hp2.pmel.noaa.gov/gis/jdf/jdfbathy.html In 1996, Deborah Kelley, University of Washington, conducted a survey of the Endeavour Observatory area using the Krupp-Atlas Hydrosweep System on the RV //bromide.ocean.washington.edu/gis/active.html
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Standard_Order_Process:
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Metadata_Reference_Information:
Metadata_Date: 19980708
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Organization_Primary:
Contact_Organization: Russ McDuff
Contact_Person: Russ McDuff
Contact_Position: Prof. Dept. of Oceanography
Contact_Address:
Address_Type: mailing and physical address
Address:
University of Washignton School of Oceanography PO BOX 357940-7940
City: Seattle
State_or_Province: WA
Postal_Code: USA
Contact_Voice_Telephone: 206-543-3058
Contact_Facsimile_Telephone: 206-543-6073
Contact_Electronic_Mail_Address: mcduff@ocean.washignton.edu
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Security_Information:

Generated by mp version 2.4.10 on Thu Sep 30 08:40:18 1999