Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey)
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, cour...
Format: | Dataset |
---|---|
Language: | unknown |
Published: |
IEDA: Marine-Geo Digital Library
2018
|
Subjects: | |
Online Access: | http://get.iedadata.org/metadata/iso/324490 |
id |
dataone:http://get.iedadata.org/metadata/iso/324490 |
---|---|
record_format |
openpolar |
spelling |
dataone:http://get.iedadata.org/metadata/iso/324490 2024-06-03T18:46:57+00:00 Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey) ENVELOPE(-36.341667,-28.991667,59.00833,55.825) BEGINDATE: 2013-08-13T00:00:00Z ENDDATE: 2013-09-15T00:00:00Z 2018-05-14T00:00:00Z http://get.iedadata.org/metadata/iso/324490 unknown IEDA: Marine-Geo Digital Library R/V Marcus G. Langseth Oceans Marine Geoscience Solid Earth Potential Field Gravimeter Gravity:Anomaly:FreeAir Marine-Geo Digital Library (MGDL) MGL1309 Reykjanes Ridge Spreading Center Dataset 2018 dataone:urn:node:IEDA_MGDL 2024-06-03T18:11:58Z 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. Dataset Iceland North Atlantic IEDA: Marine-Geo Digital Library (via DataONE) Mid-Atlantic Ridge Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Langseth ENVELOPE(15.668,15.668,68.338,68.338) ENVELOPE(-36.341667,-28.991667,59.00833,55.825) |
institution |
Open Polar |
collection |
IEDA: Marine-Geo Digital Library (via DataONE) |
op_collection_id |
dataone:urn:node:IEDA_MGDL |
language |
unknown |
topic |
R/V Marcus G. Langseth Oceans Marine Geoscience Solid Earth Potential Field Gravimeter Gravity:Anomaly:FreeAir Marine-Geo Digital Library (MGDL) MGL1309 Reykjanes Ridge Spreading Center |
spellingShingle |
R/V Marcus G. Langseth Oceans Marine Geoscience Solid Earth Potential Field Gravimeter Gravity:Anomaly:FreeAir Marine-Geo Digital Library (MGDL) MGL1309 Reykjanes Ridge Spreading Center Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey) |
topic_facet |
R/V Marcus G. Langseth Oceans Marine Geoscience Solid Earth Potential Field Gravimeter Gravity:Anomaly:FreeAir Marine-Geo Digital Library (MGDL) MGL1309 Reykjanes Ridge Spreading Center |
description |
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. |
format |
Dataset |
title |
Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey) |
title_short |
Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey) |
title_full |
Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey) |
title_fullStr |
Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey) |
title_full_unstemmed |
Gravity Free-Air Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey) |
title_sort |
gravity free-air anomaly data, reykjanes ridge, langseth cruise mgl1309 (2013, investigators fernando martinez and richard hey) |
publisher |
IEDA: Marine-Geo Digital Library |
publishDate |
2018 |
url |
http://get.iedadata.org/metadata/iso/324490 |
op_coverage |
ENVELOPE(-36.341667,-28.991667,59.00833,55.825) BEGINDATE: 2013-08-13T00:00:00Z ENDDATE: 2013-09-15T00:00:00Z |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) ENVELOPE(15.668,15.668,68.338,68.338) ENVELOPE(-36.341667,-28.991667,59.00833,55.825) |
geographic |
Mid-Atlantic Ridge Reykjanes Langseth |
geographic_facet |
Mid-Atlantic Ridge Reykjanes Langseth |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
_version_ |
1800873673739993088 |