- Title:
-
Geophysical data of field activity L-4-77-NC in Northern
California from 05/10/1977 to 05/21/1977
- Abstract:
-
Chief Scientist: Dave McCulloch. Geophysical data (LoranC,
dopplersonar, 12khz, magnetics, Burgairgun, gradiometer,
gravity, airgun, 24channel, 3dot5khz, integratednavigation,
uniboom, airgunmonitor) of field activity L-4-77-NC in
Northern California from 05/10/1977 to 05/21/1977,
<http://walrus.wr.usgs.gov/infobank/l/l477nc/html/l-4-77-nc.meta.html>.
- Supplemental_Information:
-
Equipment Used -
LoranC
dopplersonar
12khz bathymetry Raytheon
magnetics Servoriter II
Burgairgun Burg processor
gradiometer
gravity shipboard gravity Servoriter II
airgun single-channel airgun
24channel 24-channel airgun
3dot5khz Raytheon
integratednavigation
uniboom Raytheon
airgunmonitor
Publications -
McCulloch, David S., Mann, Dennis M., Ryan, Holly F., and Sliter, Ray W., 1986, Multichannel
seismic-reflection profiles collected in 1977 off the Northern California and Oregon coast:
U.S. Geological Survey Open-File Report 86-0406, 4 p., 1 sheet.<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-4-77-NC in Northern California from 05/10/1977 to 05/21/1977: 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: -125.91021
- East_Bounding_Coordinate: -122.97494
- North_Bounding_Coordinate: 42.73476
- South_Bounding_Coordinate: 37.70722
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 10-May-1977
- Ending_Date: 21-May-1977
- 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 California
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?
Al Goodman (Watchstander);
Alan Long (Watchstander);
Art Conradi (Watchstander);
Cheryl Price (Watchstander);
Chris Gutmacher (Dafe Curator);
Curtis Thompson (Chief Mate);
Dave McCulloch (Chief Scientist);
Dave Rubin (Watchstander);
Dave Wilson (Watchstander);
Dennis Mann (Watchstander);
Gary Younse (Watchstander);
George Asuncion (Electronics Technician);
Glen Barker (Mechanical Technician);
Henry Cullins (Watchstander);
John Simpson (Chief Engineer);
Jon Erickson (Mechanical Technician);
Karen Bachmann (Watchstander);
Mary Spilker (Watchstander);
Steve Davenport (Watchstander);
Terry Kelley (Electronics Technician);
W.T. Ruff (Ship Captain)
- 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.
Person who carried out this activity:
- Date: 31-Oct-1998 (process 2 of 4)
-
Gravity Data
10/31/1998 /tiger/l/l477nc/grav/l-4-77-nc.111_051
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
11/27/85 BARB DUA0:[DATA.L477NC.G]L477NC.111
DRB0:[DRS.REFMT]REFORMAT.EXE;5
Data for 1371700000 to 1432100000 is not includes in this file. That
data is lost.
Input was...
Converted to time format with year at start.
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- Date: 21-Jun-2012 (process 3 of 4)
-
Magnetics Data
06/21/2012 carolyn l-4-77-nc.260_051
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/l477nc/mag/l-4-77-nc.240_051
/bear/programs/edit/automerge/automerge
Converted to time format with year at start.
02/26/86 CAROLYN DRS$DATA:[L477NC.M]L477NC.240;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
131/0137-137/1430 was F4.OUT on 77BKUP
137/1430-138/0327 was F.1 from Clint
138/0336-139/1630 was F2.OUT on 77BKUP
139/1635-141/2120 was F3.;1 on 77BKUP
Converted to time format with year at start.
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- Date: 31-Oct-1998 (process 4 of 4)
-
Bathymetry Data
10/31/1998 /tiger/l/l477nc/bath/l-4-77-nc.305_051
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
01/30/86 BECKIE DISK$USERDISK:[BECKIE.TEMP]L477NC.305;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
I think this file was hand-digetized in meters.
Input was...
Converted to time format with year at start.
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:
-
McCulloch, David S., Mann, Dennis M., Ryan, Holly F., and Sliter, Ray W., 1986, Multichannel
seismic-reflection profiles collected in 1977 off the Northern California and Oregon coast:
U.S. Geological Survey Open-File Report 86-0406, 4 p., 1 sheet.
- 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-4-77-nc.051 [SINS])
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197705100958000 197705160503000
197705160510000 197705170455000
197705170626000 197705212138000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Gravity Data (l-4-77-nc.111_051)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197705100958100 197705101144300
197705101151300 197705101152500
197705101201100 197705101202100
197705101338000 197705131750400
197705131808200 197705140831300
197705140902500 197705171656400
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Magnetics Data (l-4-77-nc.260_051)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197705110137200 197705110827540
197705111136410 197705112117080
197705112335120 197705120631470
197705121333410 197705130119180
197705130128580 197705142348340
197705150223440 197705160520010
197705160527210 197705160642110
197705160648260 197705180327550
197705180336220 197705180626270
197705181153560 197705190805390
197705191134380 197705200857470
197705201122560 197705210416060
197705210444280 197705210611460
197705210827180 197705212120570
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Bathymetry Data (l-4-77-nc.305_051)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197705101200000 197705110530000
197705111506000 197705120500000
197705121400000 197705121430000
197705130935000 197705131000000
197705131230000 197705131250000
197705141540000 197705142300000
197705150850000 197705160430000
197705160530000 197705160600000
197705160750000 197705161838000
197705161900000 197705161945000
197705162006000 197705190700000
197705191330000 197705210315000
197705211330000 197705212032000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Seismic Shots Data (l-4-77-nc.421_051)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197705100958110 197705101144370
197705101151350 197705101357410
197705101841110 197705101905390
197705101911000 197705102211260
197705102312540 197705102345450
197705110030030 197705110032080
197705110040280 197705110443580
197705110503470 197705110931370
197705111003310 197705111027200
197705111102300 197705112103550
197705112227260 197705112259490
197705112325020 197705120118250
197705120135180 197705120750540
197705120934480 197705121124100
197705121156010 197705122025010
197705122052230 197705122231140
197705130147120 197705131007520
197705131052270 197705131156510
197705131232020 197705131933590
197705132033420 197705132219380
197705132253160 197705140017550
197705140107260 197705140331000
197705140426060 197705140542120
197705140621220 197705140734180
197705140831070 197705141637140
197705141644180 197705141712050
197705142200210 197705142338340
197705150243500 197705151324010
197705151421190 197705151950150
197705152203150 197705160443120
197705160532520 197705160919570
197705161007100 197705161240360
197705161302360 197705161354160
197705161450260 197705161756100
197705161807160 197705161852330
197705162019000 197705162019000
197705162024400 197705162024400
197705162047410 197705162320300
197705162327310 197705162334520
197705162344320 197705170240240
197705170248230 197705170321570
197705170330370 197705170421300
197705170439370 197705170530510
197705170616480 197705171610040
197705171659470 197705172018580
197705172051140 197705172306370
197705172322350 197705181023430
197705181111040 197705181915180
197705182018520 197705182102420
197705182128500 197705190900440
197705190929450 197705191024160
197705191100050 197705192112580
197705192209490 197705200247430
197705201015030 197705201950490
197705202041530 197705202143570
197705202200390 197705210525200
197705210546380 197705210614100
197705210634440 197705210813390
197705210839240 197705211117080
197705211152090 197705211753520
197705211815480 197705212137460
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-4-77-NC data set <http://walrus.wr.usgs.gov/infobank/l/l477nc/html/l-4-77-nc.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 07:20:12 2013
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