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Geophysical data of field activity L-2-75-NP in Gulf of Alaska from 08/25/1975 to 09/04/1975

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Identification_Information:

Citation:
Citation_Information:
Originator:
U.S. Geological Survey (USGS) <http://www.usgs.gov/>, Coastal and Marine Geology Program (CMGP) <http://marine.usgs.gov/>
Publication_Date: 20131029
Title:
Geophysical data of field activity L-2-75-NP in Gulf of Alaska from 08/25/1975 to 09/04/1975
Publication_Information:
Publisher:
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Publication_Place: Menlo Park, CA
Online_Linkage: <http://walrus.wr.usgs.gov/infobank/gos/l-2-75-np.fmeta.xml>
Online_Linkage:
<http://walrus.wr.usgs.gov/infobank/l/l275np/html/l-2-75-np.meta.html>

Description:
Abstract:
Chief Scientist: Dave Scholl. Geophysical data (gravity, 3dot5khz, airgun, Burgairgun, gradiometer, dopplersonar, integratednavigation, transitsatellite, Burgsparker) of field activity L-2-75-NP in Gulf of Alaska from 08/25/1975 to 09/04/1975, <http://walrus.wr.usgs.gov/infobank/l/l275np/html/l-2-75-np.meta.html>.
Purpose:
These data and information are intended for science researchers, students from elementary through college, policy makers, and general public.
Supplemental_Information:

Equipment Used -
gravity
3dot5khz 3.5 khz bathymetry
airgun single-channel airgun
Burgairgun
gradiometer
dopplersonar
integratednavigation
transitsatellite
Burgsparker

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.).
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19750825
Ending_Date: 19750904

Currentness_Reference: ground condition

Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -166.49365
East_Bounding_Coordinate: -122.66299
North_Bounding_Coordinate: 54.63333
South_Bounding_Coordinate: 37.77899

Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificinformation
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
Theme_Keyword: EARTH SCIENCE > OCEANS
Theme:
Theme_Keyword_Thesaurus: USGS CMG InfoBank
Theme_Keyword: Marine Geology
Theme_Keyword: Marine Geophysics
Theme_Keyword: Marine Gravity Field
Theme_Keyword: Marine Magnetic Field
Theme_Keyword: Magnetic Anomalies
Theme_Keyword: Bathymetry
Theme_Keyword: Water Depth
Theme_Keyword: Seafloor Topography
Theme_Keyword: Marine Seismic

Place:
Place_Keyword_Thesaurus: USGS CMG InfoBank
Place_Keyword: Gulf of Alaska
Place_Keyword: North Pacific Ocean
Place_Keyword: Northern Pacific Ocean


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.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Contact_Person: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Position:
InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA

Contact_Voice_Telephone: (650) 329-5055
Contact_Facsimile_Telephone: (650) 329-5190

Contact_Electronic_Mail_Address:
infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>


Data_Set_Credit:
Byron Ruppel (Geophysicist); Dave Scholl (Chief Scientist); Don Tompkins (Geophysicist); Graig McHendrie (Geophysicist); John Howell (Geophysicist); Keith Wilson (Geophysicist); Pamela Smith (Dafe Curator); Tom Atkins (Watchstander)
Native_Data_Set_Environment: Digital, ASCII
Cross_Reference:
Citation_Information:
Originator:
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Publication_Date: Unknown
Title: USGS/CMG Information Bank <http://walrus.wr.usgs.gov/infobank/>
Publication_Information:
Publisher:
U.S. Geological Survey (USGS) <http://www.usgs.gov> Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Publication_Place: Menlo Park, CA
Online_Linkage: <http://walrus.wr.usgs.gov/infobank/>




Data_Quality_Information:

Attribute_Accuracy:
Attribute_Accuracy_Report: Identified as best available version.

Logical_Consistency_Report: Unspecified

Completeness_Report:
Start and end date/times of data
Navigation Data (l-2-75-np.051 [SINS])
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197508252252000    197508301518000
197508301606000    197508301708000
197508301754000    197508301918000
197508302002000    197508310031000
197508310134000    197508310500000
197508310546000    197508310546000
197508310730000    197508310730000
197508310814000    197508310918000
197508311108000    197508311601000
197508311720000    197508311812000
197508311938000    197508312318000
197509010001000    197509010001000
197509010102000    197509010102000
197509010301000    197509010424000
197509010532000    197509010738000
197509010828000    197509011028000
197509011112000    197509011535000
197509011618000    197509011702000
197509011744000    197509011814000
197509011856000    197509011918000
197509012008000    197509012048000
197509012130000    197509012300000
197509020003000    197509020526000
197509020612000    197509020632000
197509020716000    197509020716000
197509020808000    197509020828000
197509020910000    197509020936000
197509021020000    197509021631000
197509021716000    197509021816000
197509021900000    197509022000000
197509022112000    197509022132000
197509022214000    197509022214000
197509022300000    197509022300000
197509022342000    197509030030000
197509030129000    197509030400000
197509030446000    197509030502000
197509030556000    197509030804000
197509030852000    197509031016000
197509031100000    197509031206000
197509031252000    197509031500000
197509031607000    197509031607000
197509031700000    197509040200000
197509040302000    197509040401000
197509040500000    197509040531000
197509040618000    197509040746000
197509040832000    197509040938000
197509041020000    197509041334000
197509041431000    197509041500000
197509041600000    197509041600000
197509041702000    197509041958000
197509042050000    197509042150000
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Magnetics Data (l-2-75-np.220_051)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197508252255320    197508270253040
197508270258530    197508271629350
197508271635350    197508280200350
197508280234410    197508280626470
197508280632140    197508291855480
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Bathymetry Data (l-2-75-np.335_051)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197509022301060    197509022301060
197509022327360    197509022327360
197509022353000    197509022353000
197509030018300    197509030018300
197509030053240    197509030053240
197509030121480    197509030121480
197509030152420    197509030152420
197509030221240    197509030221240
197509030247300    197509030247300
197509030316180    197509030316180
197509030344060    197509030344060
197509030412300    197509030412300
197509030439420    197509030439420
197509030508420    197509030508420
197509030541480    197509030541480
197509030608420    197509030608420
197509030639300    197509030639300
197509030707000    197509030707000
197509030738240    197509030738240
197509030804480    197509030804480
197509030837360    197509030837360
197509030905480    197509030905480
197509030934300    197509030934300
197509031017000    197509031017000
197509031059120    197509031059120
197509031131300    197509031131300
197509031203180    197509031203180
197509031233120    197509031233120
197509031302060    197509031302060
197509031327540    197509031327540
197509031405480    197509031405480
197509031431540    197509031431540
197509031457540    197509031457540
197509031525480    197509031525480
197509031555060    197509031555060
197509031622120    197509031622120
197509031648180    197509031648180
197509031724060    197509031724060
197509031750120    197509031750120
197509031824300    197509031824300
197509031857240    197509031857240
197509031924240    197509031924240
197509032018480    197509032018480
197509032055240    197509032055240
197509032125000    197509032125000
197509032150360    197509032150360
197509032221000    197509032221000
197509032247060    197509032247060
197509032312240    197509032312240
197509032337420    197509032337420
197509040002420    197509040002420
197509040030000    197509040030000
197509040056540    197509040056540
197509040123540    197509040123540
197509040149540    197509040149540
197509040628540    197509040628540
197509040656180    197509040656180
197509040723060    197509040723060
197509040751420    197509040751420
197509040823060    197509040823060
197509040852060    197509040852060
197509040918300    197509040918300
197509041000060    197509041000060
197509041026360    197509041026360
197509041053420    197509041053420
197509041119120    197509041119120
197509041211180    197509041211180
197509041236240    197509041236240
197509041303240    197509041303240
197509041332480    197509041332480
197509041400060    197509041400060
197509041427420    197509041427420
197509041455300    197509041455300
197509041548540    197509041548540
197509041625180    197509041625180
197509041705060    197509041705060
197509041745000    197509041745000
197509041810000    197509041810000
197509041837240    197509041837240
197509041903180    197509041903180
197509041928300    197509041928300
197509041953360    197509041953360
197509042020120    197509042020120
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Unspecified

Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: Unspecified

Lineage:

Process_Step:
Process_Description:
Navigation Data
Converted to time format with year at start.

02/11/86 KAYE DUA0:[DATA.L275NP.N]L275NP.051;
DRB0:[DRS.REFMT]REFORMAT.EXE;5

Process_Date: 19960119

Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Contact_Person: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Position:
InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA

Contact_Voice_Telephone: (650) 329-5055
Contact_Facsimile_Telephone: (650) 329-5190

Contact_Electronic_Mail_Address:
infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

Process_Step:
Process_Description:
Magnetics Data
06/20/2012 carolyn l-2-75-np.220_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/l275np/mag/l-2-75-np.200_051
/bear/programs/edit/automerge/automerge

Converted to time format with year at start.

02/14/86 CAROLYN DRS$DATA:[L275NP.M]L275NP.200;
DRB0:[DRS.REFMT]REFORMAT.EXE;5
was L275NP._.MAGSX1 on TAM157
was L275NP201.DAT   on VAM157

Converted to time format with year at start.

02/11/86 KAYE DUA0:[DATA.L275NP.N]L275NP.051;
DRB0:[DRS.REFMT]REFORMAT.EXE;5

time, lat, long, time(sec) to nearest nav fix, data values
Process_Date: 20120620

Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Contact_Person: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Position:
InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA

Contact_Voice_Telephone: (650) 329-5055
Contact_Facsimile_Telephone: (650) 329-5190

Contact_Electronic_Mail_Address:
infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

Process_Step:
Process_Description:
Bathymetry Data
10/31/1998  /tiger/l/l275np/bath/l-2-75-np.335_051
/bear/programs/edit/automerge/automerge

Input was...
Converted to time format with year at start.

02/14/86 BECKIE DISK$USERDISK:[CLINT.BECKIE]L275NP.335;
DRB0:[DRS.BAT]BATRED.EXE;1
This file was hand-digetized in 2-way traveltime(secs).
It was reduced with no Matthews correction and the
velocity of sound assumed was 1500m/sec.

02/14/86 BECKIE DISK$USERDISK:[CLINT.BECKIE]L275NP.310;
DRB0:[DRS.REFMT]REFORMAT.EXE;5

Input was...
Converted to time format with year at start.

02/11/86 KAYE DUA0:[DATA.L275NP.N]L275NP.051;
DRB0:[DRS.REFMT]REFORMAT.EXE;5

time, lat, long, time(sec) to nearest nav fix, data values
Process_Date: 19981031

Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Contact_Person: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Position:
InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA

Contact_Voice_Telephone: (650) 329-5055
Contact_Facsimile_Telephone: (650) 329-5190

Contact_Electronic_Mail_Address:
infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>



Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: Gulf of Alaska
Direct_Spatial_Reference_Method: Point

Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point



Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.00001
Longitude_Resolution: 0.00001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 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



Entity_and_Attribute_Information:

Overview_Description:
Entity_and_Attribute_Overview:
Bathymetry with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/bath.html>

Overview_Description:
Entity_and_Attribute_Overview:
Magnetics with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/mag.html>

Overview_Description:
Entity_and_Attribute_Overview:
Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>



Distribution_Information:

Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Contact_Person: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Position:
InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA

Contact_Voice_Telephone: (650) 329-5055
Contact_Facsimile_Telephone: (650) 329-5190

Contact_Electronic_Mail_Address:
infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

Resource_Description:
Downloadable Data L-2-75-NP data set <http://walrus.wr.usgs.gov/infobank/l/l275np/html/l-2-75-np.meta.html>

Distribution_Liability:
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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII
File_Decompression_Technique: No compression applied
Transfer_Size: 0.0

Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://walrus.wr.usgs.gov/infobank/l/l275np/html/l-2-75-np.nav.html>

Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII
File_Decompression_Technique: No compression applied
Transfer_Size: 0.1

Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://walrus.wr.usgs.gov/infobank/l/l275np/html/l-2-75-np.mag.html>

Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII
File_Decompression_Technique: No compression applied
Transfer_Size: 0.1

Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://walrus.wr.usgs.gov/infobank/l/l275np/html/l-2-75-np.bath.html>

Fees: None



Metadata_Reference_Information:

Metadata_Date: 20131029

Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Contact_Person: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Position:
InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>

Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA

Contact_Voice_Telephone: (650) 329-5055
Contact_Facsimile_Telephone: (650) 329-5190

Contact_Electronic_Mail_Address:
infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

Metadata_Standard_Name:
FGDC Content Standards for Digital Geospatial Metadata <http://www.fgdc.gov/>

Metadata_Standard_Version: FGDC-STD-001-1998 <http://www.its.nbs.gov/nbs/meta/meta.html>

Metadata_Time_Convention: universal time
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none


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