- Title:
-
Geophysical data of field activity 71007 (U-7-71-PR) in
Puerto Rico from 12/11/1971 to 12/15/1971
- Abstract:
-
Chief Scientist: Louis Garrison. Geophysical data
(bathymetry, gravity) of field activity 71007 (U-7-71-PR) in
Puerto Rico from 12/11/1971 to 12/15/1971,
<http://walrus.wr.usgs.gov/infobank/u/u771pr/html/u-7-71-pr.meta.html>.
- Supplemental_Information:
-
Equipment Used -
bathymetry
gravity
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 71007 (U-7-71-PR) in Puerto Rico from 12/11/1971 to 12/15/1971: 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: -66.79420
- East_Bounding_Coordinate: -64.96250
- North_Bounding_Coordinate: 18.69420
- South_Bounding_Coordinate: 18.06090
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 11-Dec-1971
- Ending_Date: 15-Dec-1971
- 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: Puerto Rico
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:
-
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?
Louis Garrison (Chief Scientist, USGS Corpus Christi);
James Case (Geophysicist, USGS Corpus Christi);
Dennis Cox (Geologist, USGS Eastern Region Puerto Rico);
Harry Hill (Electronics Technician, USGS Western Region);
Jim Nicholson (Electronics Technician, 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: 15-Dec-1995 (process 1 of 3)
-
Navigation Data
Converted to time format with year at start.
04/29/86 BECKIE DUA0:[DATA.U771PR]U771PR.051;
Navigation added to .050 file from U771PR.FAA_BA_BATHY
Addition was to end of file and started at 348/1530.
02/11/86 KAYE DUA0:[DATA.U771PR.N]U771PR.050;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
Person who carried out this activity:
- Date: 31-Oct-1998 (process 2 of 3)
-
Gravity Data
10/31/1998 /tiger/u/u771pr/grav/u-7-71-pr.180_051
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
05/01/86 BECKIE DUA0:[DATA.U771PR]U771PR.180;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
This file came from U771PR.FAA_BA_BATHY. Obs_grv is in gals.
Input was...
Converted to time format with year at start.
04/29/86 BECKIE DUA0:[DATA.U771PR]U771PR.051;
Navigation added to .050 file from U771PR.FAA_BA_BATHY
Addition was to end of file and started at 348/1530.
02/11/86 KAYE DUA0:[DATA.U771PR.N]U771PR.050;
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 3 of 3)
-
Bathymetry Data
10/31/1998 /tiger/u/u771pr/bath/u-7-71-pr.326_051
/bear/programs/edit/automerge/automerge
Input was...
Converted to time format with year at start.
04/29/86 BECKIE DUA0:[DATA.U771PR]U771PR.326;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
This file differs from U771PR14.325 by having 300 additional
corrected depths added to the end, starting at 348/1530. The
data came from U771PR.FAA_BA_BATHY.
03/07/86 BECKIE DUA0:[DATA.U771PR]U771PR14.325;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
Input was...
Converted to time format with year at start.
04/29/86 BECKIE DUA0:[DATA.U771PR]U771PR.051;
Navigation added to .050 file from U771PR.FAA_BA_BATHY
Addition was to end of file and started at 348/1530.
02/11/86 KAYE DUA0:[DATA.U771PR.N]U771PR.050;
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 (u-7-71-pr.051 [SINS])
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197112112245000 197112120230000
197112120251000 197112140230000
197112140236000 197112140440000
197112140450000 197112141505000
197112141530000 197112151625000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Gravity Data (u-7-71-pr.180_051)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197112112245000 197112120230000
197112120255000 197112120335000
197112120345000 197112121040000
197112121050000 197112121730000
197112121740000 197112122330000
197112122352000 197112122352000
197112130000000 197112130315000
197112130325000 197112140230000
197112140240000 197112140440000
197112140450000 197112141505000
197112141530000 197112151625000
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Bathymetry Data (u-7-71-pr.326_051)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
197112112245000 197112120230000
197112120251000 197112140230000
197112140236000 197112140440000
197112140450000 197112141505000
197112141530000 197112151625000
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 71007 (U-7-71-PR) data set <http://walrus.wr.usgs.gov/infobank/u/u771pr/html/u-7-71-pr.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 08:02:27 2013
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