- Title:
-
Geophysical data of field activity K-4-81-NP in Northern
Pacific from 09/23/1981 to 10/25/1981
- Abstract:
-
Chief Scientists: F.K. Duennebier, T. Shipley. Geophysical
data (bathymetry, gravity, magnetics) of field activity
K-4-81-NP in Northern Pacific from 09/23/1981 to 10/25/1981,
<http://walrus.wr.usgs.gov/infobank/k/k481np/html/k-4-81-np.meta.html>.
- Supplemental_Information:
-
Equipment Used -
bathymetry
gravity
magnetics magnetometer
Notes -
Hawaii Institute of Geophysics
<http://www.pgd.hawaii.edu/>
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/>, 20130106, Geophysical data of field activity K-4-81-NP in Northern Pacific from 09/23/1981 to 10/25/1981: 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: 150.00093
- East_Bounding_Coordinate: 173.63782
- North_Bounding_Coordinate: 19.99977
- South_Bounding_Coordinate: 7.10584
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 23-Sep-1981
- Ending_Date: 25-Oct-1981
- 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: Northern 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:
-
Gravity with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/grav.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?
F.K. Duennebier (Chief Scientist);
T. Shipley (Chief Scientist)
- 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: 06-Dec-1995 (process 1 of 4)
-
Navigation Data
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.
Person who carried out this activity:
- Date: 31-Oct-1998 (process 2 of 4)
-
Gravity Data
10/31/1998 /tiger/k/k481np/grav/k-4-81-np.160_050
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
02/20/86 BARB DUA0:[DATA.<CRUISE_ID>.G]<CRUISE_ID>.160;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
extracted 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:
- Date: 20-Jun-2012 (process 3 of 4)
-
Magnetics Data
06/20/2012 carolyn k-4-81-np.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/k/k481np/mag/k-4-81-np.200_050
/bear/programs/edit/automerge/automerge
Converted to time format with year at start.
03/03/86 CAROLYN DRS$DATA:[<cruise_id>.M]<cruise_id>.200;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
extracted by Clint from data acquired from NGDC
Converted to time format with year at start.
03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
Extracted from data acquired from NGDC.
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- Date: 31-Oct-1998 (process 4 of 4)
-
Bathymetry Data
10/31/1998 /tiger/k/k481np/bath/k-4-81-np.325_050
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
03/03/86 BECKIE DRS$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:
- 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 (k-4-81-np.050 [SINS])
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198109231145000 198110151358000
198110181425000 198110252208000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Gravity Data (k-4-81-np.160_050)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198109231145000 198110151355000
198110181425000 198110252205000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Magnetics Data (k-4-81-np.220_050)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198109231145000 198109300305000
198109300426000 198110042047000
198110050314000 198110060945000
198110061520000 198110071500000
198110072148000 198110080148000
198110081854000 198110092347000
198110100005000 198110102053000
198110102059000 198110102100000
198110102106000 198110102113000
198110102121000 198110111127000
198110111516000 198110141713000
198110150902000 198110151358000
198110181425000 198110191619000
198110191920000 198110200445000
198110200700000 198110201429000
198110201750000 198110210433000
198110210721000 198110211441000
198110211645000 198110220535000
198110220715000 198110221555000
198110221700000 198110251600000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Bathymetry Data (k-4-81-np.325_050)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
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 K-4-81-NP data set <http://walrus.wr.usgs.gov/infobank/k/k481np/html/k-4-81-np.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: 06-Jan-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 Jan 6 07:10:00 2013
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