- Title:
-
Geophysical data of field activity L-4-83-BS in Bering Sea,
Alaska from 09/16/1983 to 10/02/1983
- Abstract:
-
Chief Scientist: Mike Fisher. Geophysical data
(courserecorder, dopplersonar, integratednavigation,
transitsatellite, uniboom, airgun, 24channel, magnetics,
gravity, 12khz, 3dot5khz, RhoRho) of field activity L-4-83-BS
in Bering Sea, Alaska from 09/16/1983 to 10/02/1983,
<http://walrus.wr.usgs.gov/infobank/l/l483bs/html/l-4-83-bs.meta.html>.
- Supplemental_Information:
-
Equipment Used -
courserecorder
dopplersonar
integratednavigation
transitsatellite
uniboom
airgun single-channel airgun
24channel 24-channel seismic
magnetics shipboard magnetics
gravity shipboard gravity
12khz
3dot5khz
RhoRho
Publications -
Carlson, P.R., Karl, H.A., Edwards, B.D., Gardner, J.V., and Hall, R., 1993, Mass
movement related to large submarine canyons along the Beringian margin, Alaska, in
Schwab, W.C., Lee, H.J., Twichell, D.C., eds., Submarine landslides; selected
studies in the U.S. Exclusive Economic Zone: U.S. Geological Survey Bulletin 2002,
p. 104-116.<BR>
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-4-83-BS in Bering Sea, Alaska from 09/16/1983 to 10/02/1983: 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: -177.03690
- East_Bounding_Coordinate: -160.91098
- North_Bounding_Coordinate: 64.56765
- South_Bounding_Coordinate: 53.89226
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 16-Sep-1983
- Ending_Date: 02-Oct-1983
- 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>
- Entity_and_Attribute_Overview:
-
Seismic Shots with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/seis.html>
- Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
- Who also contributed to the data set?
Aaron Dunwald (Chief Engineer);
Al McClenaghan (Ship Captain);
Beckie Larsen (Watchstander);
Dennis Mann (Chief Seismic Watchstander);
Don Jessup (Watchstander);
Eric Dasch (Watchstander);
Holly Ryan (Watchstander);
Jim Vaughan (Electronics Technician);
Jon Erickson (Mechanical Technician);
Kaye Kinoshita (Navigator);
Larry Kooker (Electronics Technician);
Mike Fisher (Chief Scientist);
Pat Moore (Chief Mate);
Paul Wenberg (Mechanical Technician);
Ralph Tolson (Watchstander);
Robin Bouse (Navigator);
Sue Hunt (Navigator)
- 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.
05/02/85 KAYE USR$DISK:[DRS.DATA.L483BS.N]NEW.070;
USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
Person who carried out this activity:
- Date: 31-Oct-1998 (process 2 of 4)
-
Gravity Data
10/31/1998 /tiger/l/l483bs/grav/l-4-83-bs.161_070
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
05/13/85 BARB USR$DISK:[DRS.DATA.L483BS.G]L483BS.161;
USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
Meter 53
Input was...
Converted to time format with year at start.
05/02/85 KAYE USR$DISK:[DRS.DATA.L483BS.N]NEW.070;
USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
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-4-83-bs.220_070
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/l483bs/mag/l-4-83-bs.200_070
/bear/programs/edit/automerge/automerge
Converted to time format with year at start.
01/02/86 CAROLYN DRS$DATA:[L483BS.M]L483BS.200;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
reformatted from L483BS.220 originally on tape DRS032
Converted to time format with year at start.
05/02/85 KAYE USR$DISK:[DRS.DATA.L483BS.N]NEW.070;
USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- Date: 31-Oct-1998 (process 4 of 4)
-
Bathymetry Data
10/31/1998 /tiger/l/l483bs/bath/l-4-83-bs.330_070
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
05/14/85 BECKIE USR$DISK:[DRS.DATA.L483BS.B]L483BS.330;
DRA1:[DRS.BAT]BATRED.EXE;1
This is one-minute edited digitrack bathy.
Input was...
Converted to time format with year at start.
05/02/85 KAYE USR$DISK:[DRS.DATA.L483BS.N]NEW.070;
USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
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:
-
Carlson, P.R., Karl, H.A., Edwards, B.D., Gardner, J.V., and Hall, R., 1993, Mass
movement related to large submarine canyons along the Beringian margin, Alaska, in
Schwab, W.C., Lee, H.J., Twichell, D.C., eds., Submarine landslides; selected
studies in the U.S. Exclusive Economic Zone: U.S. Geological Survey Bulletin 2002,
p. 104-116.
- 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-4-83-bs.070)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198309162123000 198309261240520
198309261300000 198310021447000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Gravity Data (l-4-83-bs.161_070)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198309162124200 198309200234190
198309200239430 198309211938350
198309212050430 198309232134030
198309232141470 198309251333550
198309251339310 198309302216050
198309302222050 198310021447000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Magnetics Data (l-4-83-bs.220_070)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198309170403000 198309200354120
198309200408560 198309221455350
198309230105000 198309261126190
198309270341440 198309272113050
198309291852000 198309301813000
198309302104000 198310020816000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Bathymetry Data (l-4-83-bs.330_070)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198309162206000 198309181429570
198309181440390 198309221901000
198309221909000 198309251429590
198309251441550 198309261240520
198309261300000 198309261733000
198309261757000 198309261927000
198309270310000 198309271855460
198309271904130 198309271908020
198309271920290 198309271920290
198309271936430 198309271937130
198309272011320 198309272012020
198309272032330 198309272032330
198309272055000 198309272055000
198309272113350 198309280506000
198309280526000 198309280812000
198309280819000 198309280844000
198309280850000 198309291900000
198309292011000 198310021437000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Seismic Shots Data (l-4-83-bs.400_070)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198309230223170 198309232120090
198309232134230 198309240311230
198309240522510 198309240720110
198309240727030 198309242046570
198309242053470 198309250909100
198309251233120 198309252127110
198309252357090 198309260718070
198309260956130 198309261114370
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-4-83-BS data set <http://walrus.wr.usgs.gov/infobank/l/l483bs/html/l-4-83-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 07:20:13 2013
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