Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey)

Dataset Identification:

Resource Abstract: 
The free-air gravity anomaly grid was derived from raw gravity data acquired with a Bell BGM-3 gravimeter and converted to mGal values using the meter constant. A 10 minute cosine taper was then applied to the 1 second values and output at 10 second intervals. Eötvös corrections for ship speed, course and latitude were also applied. The values were adjusted to the gravity tie value at Reykjavik, Iceland, and the International Gravity Formula correction using WGS84 ellipsoid parameters was removed to yield the free-air anomaly. The gravity survey was conducted at the southern end of the Reykjanes Ridge, a segment of the Mid-Atlantic Ridge, in 2013 during Langseth cruise MGL1309 (investigators Fernando Martinez and Richard Hey). The data file is in netCDF:GMT grid format. It is cited in Martinez and Hey, 2017, and was generated as part of the project called Test Between Thermal and Tectonic Hypotheses for North Atlantic Seafloor Spreading Geometry Reorganization. Funding was provided by NSF award OCE11-54071.
Citation
Title  Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey)
publication date 2018-05-14
Topic Category:   oceans
Keywords:
Theme keywords (IEDA topic):
keyword term:  Oceans, Marine Geoscience, Solid Earth
Theme keywords (IEDA data type categories):
keyword term:  Potential Field
instrument Keywords
keyword term:  Gravimeter
thesaurus name >
Title  MGDL Device Type vocabulary
datatype Keywords
keyword term:  Gravity:Anomaly:FreeAir
thesaurus name >
Title  MGDL Data Type vocabulary
dataCentre Keywords
keyword term:  Marine-Geo Digital Library (MGDL)
project Keywords
keyword term:  MGL1309
Location keywords:
keyword term:  Reykjanes Ridge Spreading Center
Resource language:   eng
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -36.341667
eastBoundLongitude  -28.991667
northBoundLatitude  59.008333
southBoundLatitude  55.825000
Resource extent
Temporal Extent
2013-08-13 2013-09-15
point of contact - pointOfContact
organisation Name  Marine Geoscience Digital Library (MGDL) | Interdisciplinary Earth Data Alliance (IEDA) | Columbia University
position Name  MGDL Data Manager
Contact information
Postal Address:
electronic Mail Address:  info@marine-geo.org
point of contact - author
individual Name  Martinez, Fernando
organisation Name  University of Hawaii
point of contact - author
individual Name  Hey, Richard
organisation Name  University of Hawaii
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Reference system information

Reference System Identifier
Identifier string:  urn:ogc:def:crs:EPSG::4326
authority
Title  EPSG Geodetic Parameter Registry
publication date 2008-11-12
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Resource distribution information

Distributor
distributor contact - pointofContact
organisation Name  Marine Geoscience Digital Library (MGDL) | Interdisciplinary Earth Data Alliance (IEDA) | Columbia University
position Name  MGDL Data Manager
Contact information
Postal Address:
electronic Mail Address:  info@marine-geo.org
Format
Format name  NetCDF:GMT
Format version  1
Digital Transfer Options
Linkage for online resource
name  link to landing page for resource
URL:  http://www.marine-geo.org/tools/datasets/24490
protocol  http
link function  information
Description  Link to landing page for Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey)
Linkage for online resource
name  DOI Landing Page
URL:  http://dx.doi.org/10.1594/IEDA/324490
protocol  http
link function  information
Description  Link to DOI landing page.
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Metadata Information

Metadata data stamp:  2020-07-19
Metadata contact - pointofContact
organisation Name  Marine Geoscience Digital Library (MGDL) | Interdisciplinary Earth Data Alliance (IEDA) | Columbia University
position Name  MGDL Data Manager
Contact information
Postal Address:
electronic Mail Address:  info@marine-geo.org
Metadata scope code  series
Metadata language   eng
Metadata standard for this record:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
standard version:  ISO 19115-2:2009(E)
Metadata record identifier:  urn:org.marine-geo:metadata:24490
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Metadata record format is ISO19139-2 XML (MI_Metadata)