Gravity survey in Arctic waters, 1991 (project ARCTIC'91)
Entry ID: AWI-EDMED_542_2

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Summary
Abstract: The gravity survey was carried out in order to:

a) investigate the crustal structure of the Lomonosov Ridge to elucidate its
subsidence history,
b) determine the nature of basement on the marginal plateaus Morris Jesup and
Yermak
c) obtain further data on the thickness of the oceanic crust to evaluate any
dependence of crustal thickness with very slow spreading rate.

Sample rate was 10 s, corresponding to 25 m to 150 m depending on ship's speed.

The following instruments were used:
KSS 31/25 sea gravity meter.

The geographical coverage is as follows:
Marine gravity data covering the Amundsen Basin, the Lomonosov Ridge, the
Gakkel Ridge, the Morris Jesup Rise, the Nansen Basin and Yermak Plateau .

Data are available on request, but with special arrangement.
Geographic Coverage
Spatial coordinates   
  N: 90.0   S: 80.0   E: 158.0   W: -18.0

Temporal Coverage
Start Date: 1991-08-01
Stop Date: 1991-10-10
Platform
SHIPS Ancillary Description
Instrument
GRAVIMETERS Ancillary Description
Originating Center
Data Center
Alfred Wegener Institute for Polar and Marine Research Supplemental Info
Data Center URL: http://www.awi.de/en

Data Center Personnel
Name: DR. WILFRIED JOKAT
Phone: +49 471 / 4831- 1211
Fax: +49 471 / 4831- 1149
Email: jokat at awi-bremerhaven.de
Contact Address:
Alfred Wegener Institute for Polar and Marine Research
Geophysics Department
Columbusstrasse
City: Bremerhaven
Postal Code: D - 27568
Country: Germany
Personnel
Role: TECHNICAL CONTACT
Phone: +49 471 / 4831- 1211
Fax: +49 471 / 4831- 1149
Email: jokat at awi-bremerhaven.de
Contact Address:
Alfred Wegener Institute for Polar and Marine Research
Geophysics Department
Columbusstrasse
City: Bremerhaven
Postal Code: D - 27568
Country: Germany
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Publications/References
Fuetterer, ARCTIC'91 Cruise Report, Berichte zur Polarforschung
Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 1996-04-02
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