- Title:
-
Geophysical data of field activity G-21-71-SP in Southern
Pacific from 11/15/1971 to 01/07/1972
- Abstract:
-
Chief Scientists: James Andrews, Robert Burns. Geophysical
data (transitsatellite, 12khz, magnetics, airgun, bathymetry)
of field activity G-21-71-SP in Southern Pacific from
11/15/1971 to 01/07/1972,
<http://walrus.wr.usgs.gov/infobank/g/g2171sp/html/g-21-71-sp.meta.html>.
- Supplemental_Information:
-
Equipment Used -
transitsatellite
12khz 12 khz bathymetry
magnetics Varian MFD Proton Precession magnetometer
airgun 20 to 300 cu. in. airgun
bathymetry 10 to 300 hz EDO
Notes -
Scripps Institution of Oceanography. Dates are based on the start and
end of airgun data.
Publications -
Core Data from the Deep Sea Drilling Project, Leg 21:
<A HREF="<http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/21/leg21.htm>"><http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/21/leg21.htm>
Similar information is available for thousands
of other USGS/CMG-related Activities.
If known, available are Activity-specific
navigation, gravity, magnetics, bathymetry,
seismic, and sampling data; track maps; and
equipment information; as well as summary
overviews, crew lists, and information
about analog materials.
If available, access to physical samples is
described in the "WR CMG Sample Distribution
Policy" at:
<http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
Primary access to the USGS/CMG Information
Bank's digital data, analog data, and
metadata is provided through...
<http://walrus.wr.usgs.gov/infobank/>
This page accomodates a variety of search
approaches (e.g., by platform, by region,
by scientist, by equipment type, etc.).
- How should this data set be cited?
U.S. Geological Survey (USGS) <http://www.usgs.gov/>, Coastal and Marine Geology Program (CMGP) <http://marine.usgs.gov/>, 20130331, Geophysical data of field activity G-21-71-SP in Southern Pacific from 11/15/1971 to 01/07/1972: U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.
Online Links:
- What geographic area does the data set cover?
- West_Bounding_Coordinate: 145.36560
- East_Bounding_Coordinate: 147.32269
- North_Bounding_Coordinate: -9.32470
- South_Bounding_Coordinate: -9.99030
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 15-Nov-1971
- Ending_Date: 07-Jan-1972
- Currentness_Reference: ground condition
- What is the general form of this data set?
- How does the data set represent geographic features?
- How are geographic features stored in the data set?
- Indirect_Spatial_Reference: Southern Pacific
This is a Point data set.
It contains the following vector data types (SDTS terminology):
- What coordinate system is used to represent geographic features?
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude.
Latitudes are given to the nearest 0.00001.
Longitudes are given to the nearest 0.00001.
Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378206.4.
The flattening of the ellipsoid used is 1/294.98.
- Vertical_Coordinate_System_Definition:
-
- Depth_System_Definition:
-
- Depth_Datum_Name: Local surface
- Depth_Resolution: 0.1
- Depth_Distance_Units: meters
- Depth_Encoding_Method: Attribute values
- How does the data set describe geographic features?
- Entity_and_Attribute_Overview:
-
Bathymetry with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/bath.html>
- Entity_and_Attribute_Overview:
-
Magnetics with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/mag.html>
- Entity_and_Attribute_Overview:
-
Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>
- Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
- Who also contributed to the data set?
James Andrews (Chief Scientist, University Of Hawaii);
Robert Burns (Chief Scientist, NOAA)
- To whom should users address questions about the data?
These data and information are intended for science
researchers, students from elementary through
college, policy makers, and general public.
- From what previous works were the data drawn?
- How were the data generated, processed, and modified?
- Date: 14-Jan-2011 (process 1 of 3)
-
Navigation Data
/infobank/g/g2171sp/nav/g-21-71-sp.051
time/lat/long style, multi-record, in caps, without tabs
temporal-spatial data
extracted from GEODAS <http://www.ngdc.noaa.gov/mgg/geodas/geodas.html>
additional data are: SurveyID, YYYYMMDD, 2wayTravSec, CorrDepthM, MagNTes, MagResid
1 2 3
3456789012345678901234567890123456
Person who carried out this activity:
- Date: 20-Jun-2012 (process 2 of 3)
-
Magnetics Data
06/20/2012 carolyn g-21-71-sp.220_050
Reprocessed using subroutines from Susan Macmillan's
IGRF SYNTHESIS PROGRAM <http://www.ngdc.noaa.gov/IAGA/vmod/igrf11.f>
with IGRF-11 coeffiecients integrated into the source code.
/infobank/programs/mag/magred11/magred11.for
Using geodetic coordinate system (Earth shape approximated by spheriod)
with altitude 0.0 km (for sea level).
Input was...
10/31/1998 /tiger/g/g2171sp/mag/g-21-71-sp.200_050
/bear/programs/edit/automerge/automerge
Converted to time format with year at start.
03/03/86 CAROLYN DRS$DATA:[<cruise_id>.M]<cruise_id>.200;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
extracted by Clint from data acquired from NGDC
Converted to time format with year at start.
03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
Extracted from data acquired from NGDC.
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- Date: 31-Oct-1998 (process 3 of 3)
-
Bathymetry Data
10/31/1998 /tiger/g/g2171sp/bath/g-21-71-sp.325_050
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
03/03/86 BECKIE DRS$DATA:[<cruise_id>.B]<cruise_id>.325;
DRB0:[DRS.NGDC]UNREFNGDC.EXE;5
NGDC files sometimes have only 2_way_travel_time in
which case the format is the same but without corr_depth.
This file was extracted by C. Steele from data acquired from NGDC.
Input was...
Converted to time format with year at start.
03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
Extracted from data acquired from NGDC.
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- What similar or related data should the user be aware of?
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Unknown, USGS/CMG Information Bank <http://walrus.wr.usgs.gov/infobank/>: U.S. Geological Survey (USGS) <http://www.usgs.gov> Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.
Online Links:
- Other_Citation_Details:
-
Core Data from the Deep Sea Drilling Project, Leg 21:
<A HREF="<http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/21/leg21.htm>"><http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/21/leg21.htm>
- How well have the observations been checked?
Identified as best available version.
- How accurate are the geographic locations?
Unspecified
- How accurate are the heights or depths?
Unspecified
- Where are the gaps in the data? What is missing?
Start and end date/times of data
Navigation Data (g-21-71-sp.051 [SINS])
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197111151530000 197111170150000
197111170205000 197111170330000
197111181215000 197111181230000
197111181240000 197111191605000
197111211902000 197111211902000
197111211913000 197111211917000
197111211925000 197111231659000
197111231705000 197111231714000
197111231720000 197111231735000
197111262156000 197111262156000
197111262214000 197111262214000
197111262235000 197111300613000
197111300619000 197111300619000
197112030423000 197112030423000
197112030431000 197112030431000
197112030440000 197112032055000
197112032330000 197112062230000
197112091059000 197112091104000
197112091110000 197112091113000
197112091119000 197112091124000
197112091130000 197112111320000
197112111327000 197112111327000
197112111334000 197112111334000
197112111341000 197112111341000
197112111348000 197112111348000
197112150359000 197112150431000
197112150440000 197112161605000
197112201635000 197112221245000
197112240708000 197112240708000
197112240715000 197112271840000
197112271857000 197112271857000
197112291154000 197112291154000
197112291208000 197112291208000
197112291225000 197112322359599
197201010000001 197201040120000
197201040134000 197201040134000
197201040147000 197201040147000
197201040201000 197201040201000
197201040214000 197201040214000
197201040228000 197201040228000
197201040241000 197201040241000
197201040255000 197201040255000
197201040310000 197201052300000
197201060200000 197201061235000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Magnetics Data (g-21-71-sp.220_050)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197101052035000 197101052300000
197101060200000 197101061235000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Bathymetry Data (g-21-71-sp.325_050)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197101052035000 197101052245000
197101060200000 197101060910000
197101060920000 197101061235000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
- How consistent are the relationships among the observations, including topology?
Unspecified
Are there legal restrictions on access or use of the data?
- Access_Constraints:
-
Physical materials are under controlled on-site access.
If available, access to physical samples is described
in the "WR CMG Sample Distribution Policy" at:
<http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
- Use_Constraints:
-
Please recognize the U.S. Geological Survey (USGS) as
the source of this information.
Physical materials are under controlled on-site access.
Some USGS information accessed through this means
may be preliminary in nature and presented without
the approval of the Director of the USGS. This
information is provided with the understanding
that it is not guaranteed to be correct or complete
and conclusions drawn from such information are
the responsibility of the user.
This information is not intended for navigational
purposes.
Any use of trade, firm, or product names is for
descriptive purposes only and does not imply
endorsement by the U.S. Government.
- Who distributes the data set? (Distributor 1 of 1)
- What's the catalog number I need to order this data set?
Downloadable Data G-21-71-SP data set <http://walrus.wr.usgs.gov/infobank/g/g2171sp/html/g-21-71-sp.meta.html>
- What legal disclaimers am I supposed to read?
Please recognize the U.S. Geological Survey (USGS) as
the source of this information.
Physical materials are under controlled on-site access.
Some USGS information accessed through this means
may be preliminary in nature and presented without
the approval of the Director of the USGS. This
information is provided with the understanding
that it is not guaranteed to be correct or complete
and conclusions drawn from such information are
the responsibility of the user.
This information is not intended for navigational
purposes.
Any use of trade, firm, or product names is for
descriptive purposes only and does not imply
endorsement by the U.S. Government.
- How can I download or order the data?
- Availability in digital form:
- Cost to order the data: None
- Dates:
- Last modified: 31-Mar-2013
- Metadata author:
-
- Metadata standard:
- FGDC Content Standards for Digital Geospatial Metadata <http://www.fgdc.gov/> (FGDC-STD-001-1998 <http://www.its.nbs.gov/nbs/meta/meta.html>)
Generated by mp version 2.9.13 on Sun Mar 31 07:13:31 2013
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