- Title:
-
Geophysical data of field activity L-7-76-BS in Bering Sea,
Alaska from 09/03/1976 to 09/10/1976
- Abstract:
-
Chief Scientist: Mike Marlow. Geophysical data (3dot5khz,
sparker, dopplersonar, gravity, gradiometer,
integratednavigation, transitsatellite, uniboom, 24channel,
airgun, airgunmonitor) of field activity L-7-76-BS in Bering
Sea, Alaska from 09/03/1976 to 09/10/1976,
<http://walrus.wr.usgs.gov/infobank/l/l776bs/html/l-7-76-bs.meta.html>.
- Supplemental_Information:
-
Equipment Used -
3dot5khz 3.5 khz bathymetry
sparker 160 kj sparker
dopplersonar
gravity shipboard gravity
gradiometer
integratednavigation
transitsatellite
uniboom
24channel 24-channel seismic
airgun single-channel airgun
airgunmonitor
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 L-7-76-BS in Bering Sea, Alaska from 09/03/1976 to 09/10/1976: 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: -176.63771
- East_Bounding_Coordinate: -165.40160
- North_Bounding_Coordinate: 64.48392
- South_Bounding_Coordinate: 51.85725
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 03-Sep-1976
- Ending_Date: 10-Sep-1976
- 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: Bering Sea, Alaska
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?
Andy Montez (Mechanical Technician, SEC);
Carrie Carpenter (Dafe Curator);
Chris Carlson (Watchstander);
Dave Aldridge (Watchstander);
Gordon Hess (Navigator);
Joe Edwards (Mechanical Technician);
Juan Richardson (Watchstander);
Karen Bachmann (Watchstander);
Kim Bailey (Watchstander);
Mike Marlow (Chief Scientist);
Paul Twitchel (Mechanical Technician);
Paula Shryock (Watchstander);
Terry Kelley (Electronics Technician);
Tom Thornton (Electronics Technician)
- 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: 19-Jan-1996 (process 1 of 4)
-
Navigation Data
Converted to time format with year at start.
01/31/86 KAYE DUA0:[DATA.L776BS.N]L776BS.011;
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/l/l776bs/grav/l-7-76-bs.165_011
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
05/02/86 CLINT DUA0:[DATA.L776BS]L776BS.165;
DRB0:[CLINT]REFMTJCGRV.EXE;
reformated from JChilds file l776.smgrv
Input was...
Converted to time format with year at start.
01/31/86 KAYE DUA0:[DATA.L776BS.N]L776BS.011;
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 l-7-76-bs.220_011
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/l/l776bs/mag/l-7-76-bs.200_011
/bear/programs/edit/automerge/automerge
Converted to time format with year at start.
01/03/86 CAROLYN DRS$DATA:[L776BS.M]L776BS.200;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
from Barb from grvsd1 from VAM087 - couldn't read second mag field
253/0332-253/0418 & 253/1932-253/2000 from L776BS.DRCPE1.MAGSD1 on TAM087
also was L776BS240.DAT on VAM087
Converted to time format with year at start.
01/31/86 KAYE DUA0:[DATA.L776BS.N]L776BS.011;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- Date: 31-Oct-1998 (process 4 of 4)
-
Bathymetry Data
10/31/1998 /tiger/l/l776bs/bath/l-7-76-bs.335_011
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
02/11/86 BECKIE DISK$USERDISK:[BECKIE.TEMP]L776BS.335;
DRB0:[DRS.BAT]BATRED.EXE;1
Velocity of sound assumed in reduction: 1500m/sec
for 2-way traveltime.
02/11/86 BECKIE DISK$USERDISK:[BECKIE.TEMP]L776BS.310;
DRB0:[DRS.NGDC]UNREFNGDC.EXE;
This file was hand-digetized in 2-way traveltime(secs).
Input was...
Converted to time format with year at start.
01/31/86 KAYE DUA0:[DATA.L776BS.N]L776BS.011;
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:
- 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 (l-7-76-bs.011 [DRS])
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197609032243400 197609061839000
197609061848400 197609061939000
197609062013500 197609062132000
197609062203100 197609080945400
197609080955100 197609081955500
197609082205100 197609090330400
197609090420000 197609091931100
197609092001400 197609101518500
197609101530400 197609101535300
197609101633200 197609101633200
197609101725300 197609101903300
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Gravity Data (l-7-76-bs.165_011)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197609032243420 197609040247420
197609040630180 197609061455120
197609061500300 197609061835000
197609061844420 197609061850420
197609062216120 197609080940420
197609080950120 197609081156000
197609081201180 197609081929480
197609090001120 197609090325420
197609090416000 197609091926120
197609091957420 197609101513480
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Magnetics Data (l-7-76-bs.220_011)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197609032243400 197609040612100
197609050047400 197609061840200
197609061848400 197609061940400
197609062013500 197609062133200
197609062203100 197609080947200
197609080955100 197609081956500
197609082205100 197609101519500
197609101725300 197609101903300
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Bathymetry Data (l-7-76-bs.335_011)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197609032335000 197609032335000
197609032359000 197609032359000
197609040030000 197609040030000
197609040116000 197609040116000
197609040156000 197609040156000
197609040240000 197609040240000
197609040334000 197609040334000
197609040425000 197609040425000
197609040527000 197609040527000
197609040600000 197609040958000
197609041012000 197609041012000
197609041030000 197609041104000
197609041127000 197609041300000
197609041313000 197609041451000
197609041504000 197609042159000
197609042220000 197609051630000
197609051702000 197609061800000
197609062102000 197609062102000
197609062113000 197609062231000
197609062310000 197609072230000
197609072241000 197609080432000
197609080636000 197609081046000
197609081747000 197609081805000
197609081821000 197609081849000
197609081904000 197609081904000
197609081917000 197609081917000
197609081933000 197609081941000
197609081953000 197609082002000
197609082013000 197609082133000
197609082144000 197609082144000
197609082156000 197609082156000
197609082211000 197609082211000
197609082224000 197609082224000
197609082237000 197609082237000
197609082249000 197609082306000
197609082319000 197609082339000
197609082355000 197609082355000
197609090012000 197609090012000
197609090027000 197609090027000
197609090040000 197609090040000
197609090054000 197609090054000
197609090107000 197609090107000
197609090119000 197609090139000
197609090151000 197609090151000
197609090202000 197609090202000
197609090218000 197609090223000
197609090239000 197609090239000
197609090254000 197609090254000
197609090309000 197609090309000
197609090326000 197609090326000
197609090403000 197609090403000
197609090419000 197609090419000
197609090431000 197609090431000
197609090445000 197609090445000
197609090503000 197609090503000
197609090521000 197609090610000
197609090621000 197609090621000
197609090632000 197609090632000
197609090643000 197609090656000
197609090707000 197609090707000
197609090719000 197609090719000
197609090731000 197609090806000
197609090817000 197609090843000
197609090854000 197609090854000
197609090905000 197609090905000
197609090918000 197609090937000
197609090950000 197609090950000
197609091004000 197609091004000
197609091015000 197609091026000
197609091038000 197609091038000
197609091051000 197609091051000
197609091102000 197609091102000
197609091118000 197609091118000
197609091132000 197609091132000
197609091149000 197609091149000
197609091200000 197609091208000
197609091219000 197609091229000
197609091240000 197609091240000
197609091252000 197609091335000
197609091352000 197609091409000
197609091420000 197609091420000
197609091434000 197609091458000
197609091514000 197609091522000
197609091534000 197609091544000
197609091555000 197609091555000
197609091607000 197609091607000
197609091621000 197609091621000
197609091633000 197609091633000
197609091645000 197609091645000
197609091659000 197609091659000
197609091713000 197609091713000
197609091728000 197609091738000
197609091753000 197609091809000
197609091824000 197609091824000
197609091835000 197609091844000
197609091856000 197609091916000
197609092048000 197609092116000
197609092129000 197609092129000
197609092141000 197609092141000
197609092158000 197609092158000
197609092216000 197609092216000
197609092234000 197609092234000
197609092250000 197609092250000
197609092305000 197609092308000
197609092320000 197609092336000
197609092349000 197609092349000
197609100005000 197609100005000
197609100020000 197609100020000
197609100038000 197609100038000
197609100057000 197609100057000
197609100114000 197609100114000
197609100137000 197609100137000
197609100157000 197609100157000
197609100221000 197609100221000
197609100234000 197609100250000
197609100304000 197609100338000
197609100352000 197609100519000
197609100546000 197609100615000
197609100651000 197609100851000
197609100917000 197609100929000
197609100946000 197609101020000
197609101035000 197609101039000
197609101051000 197609101053000
197609101105000 197609101107000
197609101118000 197609101120000
197609101132000 197609101149000
197609101200000 197609101223000
197609101235000 197609101236000
197609101247000 197609101304000
197609101318000 197609101320000
197609101336000 197609101540000
197609101553000 197609101654000
197609101707000 197609101721000
197609101733000 197609101740000
197609101751000 197609101818000
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 L-7-76-BS data set <http://walrus.wr.usgs.gov/infobank/l/l776bs/html/l-7-76-bs.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 07:20:27 2013
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