- Title:
-
Geophysical data of field activity L-12-82-WG in Western Gulf
of Alaska from 09/22/1982 to 10/05/1982
- Abstract:
-
Chief Scientists: Steve Lewis, Terry Bruns. Geophysical
data (3dot5khz, 12khz, gravity, uniboom, airgun,
airgunmonitor, courserecorder, integratednavigation, RhoRho,
transitsatellite, 24channel) of field activity L-12-82-WG in
Western Gulf of Alaska from 09/22/1982 to 10/05/1982,
<http://walrus.wr.usgs.gov/infobank/l/l1282wg/html/l-12-82-wg.meta.html>.
- Supplemental_Information:
-
Equipment Used -
3dot5khz 3.5 khz bathymetry
12khz 12 khz bathymetry
gravity
uniboom
airgun single-channel airgun
airgunmonitor single-channel airgun monitor
courserecorder
integratednavigation
RhoRho
transitsatellite
24channel
Notes -
<a href="<http://geology.about.com/library/weekly/aa081102a.htm>">Photos and reminiscences by Andy Alden</a>
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-12-82-WG in Western Gulf of Alaska from 09/22/1982 to 10/05/1982: 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: -166.52713
- East_Bounding_Coordinate: -158.30482
- North_Bounding_Coordinate: 55.33219
- South_Bounding_Coordinate: 52.53880
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 22-Sep-1982
- Ending_Date: 05-Oct-1982
- 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: Western Gulf of 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);
Andy Alden (Watchstander);
Chris Wilson (Navigator);
Dan Conley (Watchstander);
Dave Melendrez (Chief Mate);
Donna Blackman (Watchstander);
Greg Smith (Geophysicist);
Holly Ryan (Watchstander);
Jack Swenson (Mechanical Technician);
Jim Vaughan (Electronics Technician);
John Fife (Watchstander);
Kaye Kinoshita (Navigator);
Larry Kooker (Electronics Technician);
Paul Wenberg (Mechanical Technician);
Steve Lewis (Chief Scientist, Lamont-Doherty);
Sue Hunt (Navigator);
Terry Bruns (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: 19-Jan-1996 (process 1 of 4)
-
Navigation Data
Converted to time format with year at start.
07/02/85 KAYE DRS$DATA:[L1282WG.N]LC82WG.052;
DRB0:[DRS.REFMT]REFORMAT.EXE;4
Original file name is l1282wg.sinsc1._.
Person who carried out this activity:
- Date: 31-Oct-1998 (process 2 of 4)
-
Gravity Data
10/31/1998 /tiger/l/l1282wg/grav/l-12-82-wg.151_052
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
10/10/85 BARB DRS$DATA:[LC82WG.G]LC82WG.151;
DRB0:[DRS.REFMT]REFORMAT.EXE;4
Input was...
Converted to time format with year at start.
07/02/85 KAYE DRS$DATA:[L1282WG.N]LC82WG.052;
DRB0:[DRS.REFMT]REFORMAT.EXE;4
Original file name is l1282wg.sinsc1._.
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- Date: 20-Jun-2012 (process 3 of 4)
-
Magnetics Data
06/20/2012 carolyn l-12-82-wg.220_052
Reprocessed using subroutines from Susan Macmillan's
IGRF SYNTHESIS PROGRAM <http://www.ngdc.noaa.gov/IAGA/vmod/igrf11.f>
with IGRF-11 coeffiecients integrated into the source code.
/infobank/programs/mag/magred11/magred11.for
Using geodetic coordinate system (Earth shape approximated by spheriod)
with altitude 0.0 km (for sea level).
Input was...
10/31/1998 /tiger/l/l1282wg/mag/l-12-82-wg.200_052
/bear/programs/edit/automerge/automerge
Converted to time format with year at start.
10/03/85 CAROLYN DRS$DATA:[L1282BS.M]LC82WG.200;
DRB0:[DRS.REFMT]REFORMAT.EXE;4
was L1282WG._.MAGSB1 on TAM415
was LB82WG240.DAT on VAM415
Converted to time format with year at start.
07/02/85 KAYE DRS$DATA:[L1282WG.N]LC82WG.052;
DRB0:[DRS.REFMT]REFORMAT.EXE;4
Original file name is l1282wg.sinsc1._.
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- Date: 31-Oct-1998 (process 4 of 4)
-
Bathymetry Data
10/31/1998 /tiger/l/l1282wg/bath/l-12-82-wg.320_052
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
07/16/85 BECKIE DUA0:[DATA.L1282WG.B]LC82WG.320;
DRB0:[DRS.REFMT]REFORMAT.EXE;4
I BELIEVE THIS FILE TO BE HAND-DIGETIZED BATHY IN 2-WAY
TRAVEL-TIME. I DO NOT KNOW WHAT MATHEWS AREA WAS USED
TO CALCULATE THE CORRECTED DEPTHS. R.LARSEN
Input was...
Converted to time format with year at start.
07/02/85 KAYE DRS$DATA:[L1282WG.N]LC82WG.052;
DRB0:[DRS.REFMT]REFORMAT.EXE;4
Original file name is l1282wg.sinsc1._.
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-12-82-wg.052 [SINS])
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198209222208000 198209251241200
198209251250390 198209280116290
198209280148000 198210052144000
198210052247000 198210052247000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Gravity Data (l-12-82-wg.151_052)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198209230336000 198209240016480
198209240026000 198209240047000
198209240058000 198209240142000
198209250000120 198209250000120
198209260000000 198209260549480
198209260839000 198209261517000
198209261538000 198209261653000
198209261737240 198209261915240
198209261936240 198209262016240
198209262031240 198209262123240
198209262223240 198209262324240
198209262351240 198209270236240
198209270253240 198209271115000
198209271142000 198209271951000
198209272023480 198209272138000
198209272253540 198209272253540
198209281312180 198209281312180
198209282040180 198209282040180
198209282227240 198209282351240
198209290009240 198209290840000
198209291108000 198209292105120
198209292134120 198209292325120
198209292330540 198209300109540
198209300208540 198209300732540
198209300819480 198209301600000
198209301611480 198209301752480
198209301804480 198209302136480
198209302152480 198210010222000
198210010258240 198210011655000
198210011703120 198210012018420
198210012037420 198210020157420
198210020251420 198210020929120
198210020950120 198210021119120
198210021151120 198210022046540
198210022144000 198210030648480
198210030741480 198210031942480
198210032040480 198210040024480
198210040051480 198210040310420
198210040325360 198210042202240
198210042213240 198210050134360
198210050155360 198210050433000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Magnetics Data (l-12-82-wg.220_052)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198209230916570 198209240022210
198209240030570 198209240915250
198209240921490 198209241808050
198209241818130 198209251154100
198209251159260 198209260554580
198209260844020 198209261658220
198209261742260 198209271956140
198209272028460 198209280131300
198209282100190 198209300738170
198209300824450 198210022051530
198210022149010 198210040030450
198210040056490 198210050331290
198210050631300 198210052030500
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Bathymetry Data (l-12-82-wg.320_052)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Seismic Shots Data (l-12-82-wg.422_052)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198209230950150 198209231801360
198209231811240 198209231817090
198209231833290 198209231910080
198209231944280 198209232022110
198209232059590 198209232136270
198209232214290 198209232253390
198209232334500 198209240013140
198209240056480 198209240142090
198209240230370 198209240546310
198209240645060 198209241433310
198209241525280 198209242059370
198209242110000 198209242153490
198209242218500 198209251237530
198209251330450 198209251648000
198209251715510 198209251755190
198209251823490 198209251838230
198209251904470 198209260937180
198209261003080 198209261048030
198209261120070 198209261207290
198209261255430 198209261348500
198209261440060 198209261520060
198209261654300 198209261741250
198209261824540 198209262115170
198209262220110 198209271118080
198209271205160 198209280054120
198209282027120 198209290134460
198209290225140 198209290733510
198209290757190 198209292100030
198209292140240 198209300114470
198209300220180 198209301059540
198209301200290 198209301345470
198209301420120 198209302241590
198209302320070 198210010154590
198210010255090 198210012019330
198210012105350 198210020200050
198210020300430 198210020935590
198210021003170 198210021119540
198210021215190 198210030644410
198210030745240 198210031950200
198210032039570 198210040307030
198210040337240 198210041915190
198210041940000 198210050110030
198210050205200 198210050329540
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-12-82-WG data set <http://walrus.wr.usgs.gov/infobank/l/l1282wg/html/l-12-82-wg.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 07:19:41 2013
|
