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Natural Environment Research Council
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Details of Award

NERC Reference : NE/B501820/1

Excitation of torsional oscillations in Earths core, Characteristics of geomag jerks & Millennial timescale variations in geomag field & length of day

Fellowship Award

Fellow:
Mr M Dumberry, University of Leeds, School of Earth and Environment
Science Area:
Earth
Overall Classification:
Earth
ENRIs:
None
Science Topics:
Mantle & Core Processes
Climate & Climate Change
Abstract:
I propose to build a simple numerical model to test a mechanism for the excitation of torsional oscillations in the Earth's core. It comprises a mean differential rotation acting on a non-axisymmetric magnetic field. I also plan to investigate the characteristics of geomagnetic jerks by determining the attributes of the magnetic field and flow that lead to them. I also plan to investigate a possible link between archaeomagentic field variations and the long term fluctuations in the length of day, which both have periods of about 1500 years. The results are likely to lead to useful constraints for the geodynamo at a thousand year timescale.
Period of Award:
19 Nov 2004 - 18 Nov 2007
Value:
£127,030
Authorised funds only
NERC Reference:
NE/B501820/1
Grant Stage:
Completed
Scheme:
Postdoctoral Fellow
Grant Status:
Closed

This fellowship award has a total value of £127,030  

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FDAB - Financial Details (Award breakdown by headings)

Total - StaffTotal - Other Costs
£98,530£28,500

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