- Title:
-
Geophysical data of field activity 71006 (U-6-71-AT) in
Liberia to Puerto Rico, Atlantic Ocean from 11/24/1971 to
12/09/1971
- Abstract:
-
United States Geological Survey, Woods Hole, Massachusetts.
Chief Scientist: Marty Kane. Geophysical data (magnetics,
bathymetry) of field activity 71006 (U-6-71-AT) in Liberia to
Puerto Rico, Atlantic Ocean from 11/24/1971 to 12/09/1971,
<http://walrus.wr.usgs.gov/infobank/u/u671at/html/u-6-71-at.meta.html>.
- Supplemental_Information:
-
Equipment Used -
magnetics
bathymetry
Publications -
U671AT Cruise Report exists at Woods Hole
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 71006 (U-6-71-AT) in Liberia to Puerto Rico, Atlantic Ocean from 11/24/1971 to 12/09/1971: 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: -62.96440
- East_Bounding_Coordinate: -10.90170
- North_Bounding_Coordinate: 17.69430
- South_Bounding_Coordinate: 6.03600
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 24-Nov-1971
- Ending_Date: 09-Dec-1971
- 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: Liberia to Puerto Rico, Atlantic Ocean
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?
Marty Kane (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: 15-Dec-1995 (process 1 of 4)
-
Navigation Data
Converted to time format with year at start.
02/11/86 KAYE DUA0:[DATA.U671AT.N]U671AT.050;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
Person who carried out this activity:
- Date: 31-Oct-1998 (process 2 of 4)
-
Gravity Data
10/31/1998 /tiger/u/u671at/grav/u-6-71-at.161_050
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
04/22/86 CLINT DUA0:[DATA.U671AT]U671AT.161;
DRB0:[DRS.NGDC]UNREFNGDC.EXE;
I believe this file is correct for free-air
values. U671at.160 has free-air values that do
not correspond to the values given for the
observed and theoretical gravity. RLarsen.
Input was...
Converted to time format with year at start.
02/11/86 KAYE DUA0:[DATA.U671AT.N]U671AT.050;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
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 u-6-71-at.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/u/u671at/mag/u-6-71-at.200_050
/bear/programs/edit/automerge/automerge
Converted to time format with year at start.
03/10/86 CAROLYN DRS$DATA:[U671AT.M]U671AT.200;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
was U671AT.220 from 71BKUP
03/22/85 CAROLYN USR$DISK:[DRS.DATA.U6.M]U671AT.220;
USR$DISK:[DRS.REFMT]REFORMAT.EXE;3
Converted to time format with year at start.
02/11/86 KAYE DUA0:[DATA.U671AT.N]U671AT.050;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
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/u/u671at/bath/u-6-71-at.325_050
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
03/07/86 BECKIE DUA0:[DATA.U671AT]U671AT.325;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
Input was...
Converted to time format with year at start.
02/11/86 KAYE DUA0:[DATA.U671AT.N]U671AT.050;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
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: U671AT Cruise Report exists at Woods Hole
- 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 (u-6-71-at.050 [SINS])
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197111241740000 197112022111360
197112022121480 197112022130000
197112022141060 197112022141060
197112022151180 197112022201300
197112022211420 197112022211420
197112022230000 197112022231000
197112022241120 197112022241120
197112022251300 197112022301360
197112022311480 197112022331120
197112022351360 197112030000000
197112030011000 197112030011000
197112030021060 197112030031180
197112030041300 197112030041300
197112030051420 197112030100000
197112030111060 197112030111060
197112030121180 197112030131300
197112030141420 197112030141420
197112030151540 197112030201060
197112030211180 197112030211180
197112030221360 197112030241000
197112030251180 197112030301300
197112030311480 197112030331120
197112030341300 197112030341300
197112030351420 197112030400000
197112030411060 197112030411060
197112030421240 197112030431360
197112030441480 197112030501120
197112030511240 197112030511240
197112030521360 197112030541000
197112030551180 197112030601300
197112030611480 197112030631120
197112030641240 197112030641240
197112030651360 197112030711000
197112030721060 197112030731180
197112030741300 197112030741300
197112030751420 197112030800000
197112030811060 197112030811060
197112030821180 197112030831300
197112030841420 197112030841420
197112030851540 197112030901000
197112030911120 197112030911120
197112030921240 197112030931360
197112030941480 197112031001060
197112031011180 197112031011180
197112031021360 197112031041000
197112031051180 197112051730000
197112051800000 197112061000000
197112061010060 197112061010060
197112061020180 197112071210420
197112071220480 197112091950360
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Gravity Data (u-6-71-at.161_050)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197111241740000 197111252200000
197111252215000 197111260710000
197111260720000 197111262145000
197111262205000 197111272150000
197111272300000 197111282145000
197111282215000 197111290010000
197111290020000 197111300625000
197111300635000 197111301850000
197111301915000 197111301920000
197111301950000 197111302005000
197111302025000 197111302045000
197111302100000 197112010140000
197112010200000 197112021025000
197112021035000 197112021250000
197112021300000 197112021715000
197112031100000 197112040325000
197112040345000 197112040350000
197112040400000 197112041545000
197112041555000 197112050250000
197112050300000 197112051725000
197112051800000 197112060945000
197112061030000 197112061515000
197112061525000 197112070310000
197112070320000 197112070625000
197112070640000 197112071200000
197112071230000 197112082030000
197112082040000 197112091950000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Magnetics Data (u-6-71-at.220_050)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197111241801060 197111280411180
197111280431480 197111280711060
197111280731300 197111300720060
197111300740300 197111302350120
197112010010300 197112021801060
197112021821540 197112022331120
197112022351360 197112051630120
197112051910120 197112091950360
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Bathymetry Data (u-6-71-at.325_050)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197111241740000 197111250405000
197111250525000 197111280230000
197111280240000 197112021030000
197112021300000 197112021730000
197112031100000 197112032120000
197112032130000 197112040505000
197112040520000 197112040710000
197112040716000 197112041220000
197112041230000 197112041930000
197112041950000 197112070945000
197112071005000 197112080525000
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 71006 (U-6-71-AT) data set <http://walrus.wr.usgs.gov/infobank/u/u671at/html/u-6-71-at.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 08:02:26 2013
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