- Title:
-
Geophysical data of field activity L-5-77-EG in Eastern Gulf
of Alaska from 06/04/1977 to 06/09/1977
- Abstract:
-
Chief Scientist: Parke Snavely. Geophysical data
(transitsatellite, bathgravnav, bathnav, gravity,
gradiometer, uniboom, 24channel, airgunmonitor, sonobuoy) of
field activity L-5-77-EG in Eastern Gulf of Alaska from
06/04/1977 to 06/09/1977,
<http://walrus.wr.usgs.gov/infobank/l/l577eg/html/l-5-77-eg.meta.html>.
- Supplemental_Information:
-
Equipment Used -
transitsatellite
bathgravnav
bathnav
gravity
gradiometer
uniboom
24channel
airgunmonitor
sonobuoy
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-5-77-EG in Eastern Gulf of Alaska from 06/04/1977 to 06/09/1977: 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: -135.76193
- East_Bounding_Coordinate: -124.99455
- North_Bounding_Coordinate: 54.97239
- South_Bounding_Coordinate: 48.61677
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 04-Jun-1977
- Ending_Date: 09-Jun-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: Eastern 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:
-
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?
Parke Snavely (Chief Scientist, USGS Western Region)
- 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: 12-Jun-2000 (process 1 of 3)
-
Navigation Data
Converted to time format with year at start.
01/23/86 KAYE DUA0:[DATA.L577WO.N]L577WO.010;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
06/12/00 DAN MOSIER SPLIT THIS FROM L577WO
Person who carried out this activity:
- Date: 09-Jun-2000 (process 2 of 3)
-
Gravity Data
10/31/1998 /tiger/l/l577eg/grav/l-5-77-eg.110_010
/bear/programs/edit/automerge/automerge
DAN MOSIER SPLIT THIS PART FROM L-5-77-WO, 6/9/00
Input was...
Converted to time format with year at start.
12/17/85 BARB DUA0:[DATA.L577WO.G]L577WO.110;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
Input was...
Converted to time format with year at start.
01/23/86 KAYE DUA0:[DATA.L577WO.N]L577WO.010;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
time, lat, long, time(sec) to nearest nav fix, data values
Person who carried out this activity:
- Date: 21-Jun-2012 (process 3 of 3)
-
Magnetics Data
06/21/2012 carolyn l-5-77-eg.260_010
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/l577wo/mag/l-5-77-wo.240_010
/bear/programs/edit/automerge/automerge
Converted to time format with year at start.
01/23/86 CAROLYN DRS$DATA:[L577WO.M]L577WO.240;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
141/2125-157/0511
was L577WO._.MAGSA1 on TAM456
was L577WO200.DAT on VAM456
157/0511-160/1517
was L577WO._.MAGSA2 on TAM456
was L577WO201.DAT on VAM456
Converted to time format with year at start.
01/23/86 KAYE DUA0:[DATA.L577WO.N]L577WO.010;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
06/12/00 DAN MOSIER SPLIT THIS PART FROM L577WO
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-5-77-eg.010 [DRS])
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197706040434400 197706040917000
197706040923400 197706041658100
197706041706100 197706042240400
197706042247000 197706050032400
197706050042000 197706050426100
197706050432200 197706050725100
197706050753500 197706051531300
197706051541500 197706051742500
197706051756100 197706060604200
197706060614000 197706060626100
197706060640300 197706060640300
197706060655180 197706060655180
197706060710180 197706060710180
197706060725180 197706060725180
197706060740180 197706060740180
197706060756180 197706060756180
197706060811180 197706060811180
197706060826180 197706060826180
197706060841180 197706060841180
197706060856180 197706060856180
197706061040000 197706061649300
197706061657400 197706070314000
197706070324300 197706070612100
197706070628100 197706070705500
197706070721100 197706071059500
197706071116500 197706071116500
197706071122100 197706071139100
197706071158300 197706071739100
197706071749500 197706071916300
197706071933300 197706080712400
197706080720200 197706080837300
197706080845500 197706082011500
197706082021500 197706090549500
197706090601500 197706090706100
197706090718100 197706090718100
197706090736100 197706090736100
197706090750100 197706091107500
197706091114100 197706091735500
197706091745300 197706091952100
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Gravity Data (l-5-77-eg.110_010)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197706040000000 197706040917000
197706040923400 197706050033000
197706050042000 197706050426300
197706050432200 197706060604200
197706060611000 197706061649500
197706061657400 197706070314200
197706070320500 197706080712400
197706080720200 197706091952100
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Magnetics Data (l-5-77-eg.260_010)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197706060158140 197706081849320
197706081857370 197706091517190
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Seismic Shots Data (l-5-77-eg.420_010)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197706060139370 197706060608250
197706060614370 197706061451010
197706061456410 197706061653320
197706061740090 197706070123160
197706070129360 197706070148360
197706070154560 197706070301230
197706070307570 197706070510280
197706070516270 197706070533570
197706070539280 197706070641530
197706070648130 197706070820580
197706070907160 197706072257580
197706072310570 197706072333070
197706072339270 197706080223400
197706080253070 197706080419140
197706080452500 197706082335240
197706090007000 197706090106370
197706090148110 197706090533510
197706090539070 197706090551290
197706090556310 197706090556310
197706090601320 197706091255490
197706091342310 197706091456120
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-5-77-EG data set <http://walrus.wr.usgs.gov/infobank/l/l577eg/html/l-5-77-eg.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>)
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