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A new, ground based data-assimilative modeling of the Earth's plasmasphere - a critical contribution to Radiation Belt modeling for Space Weather purposes

Objective

The security of space assets are affected by the high-energy charged particle environment in the radiation belts. The controlling principal source and loss mechanisms in the radiation belts are not yet completely understood. During a geomagnetic storm the length of time during which space assets are in danger is determined by the loss mechanisms, particularly by relativistic electron precipitation. The primary mechanism for this precipitation is the interaction of several wave modes with resonant electrons which leads to scattering into the atmospheric loss cone.
The nature of the wave activity and the interactions between the waves and radiation belt particles are strongly governed by the properties of the plasmasphere. At this point there are few existing and regular measurements of plasmaspheric properties, with existing plasmaspheric models lacking the structures known to exist in the real plasmasphere. There is evidence that enhanced wave activity and enhanced radiation belt losses occur due to such structures. In addition, there are large uncertainties concerning the fundamental nature of relativistic electron precipitation (REP), due to the difficulties of undertaking quality in-situ measurements.
To address these uncertainties in this proposed project we will provide regular longitudinally-resolved measurements plasmaspheric electron and mass densities and hence monitor the changing composition of the plasmasphere, one of the properties which determines wave growth. This will allow us to develop a data assimilative model of the plasmasphere. At the same time, we will monitor the occurrence and properties of REP, tying the time-resolved loss of relativistic electrons to the dynamic plasmasphere observations.
Our approach will primarily use ground-based networks of observing stations, operating in the ULF and VLF ranges, deployed on a worldwide level. Our proposal is made up of 6 work packages to meet these science goals.

Field of science

  • /natural sciences/physical sciences/theoretical physics/particles

Call for proposal

FP7-SPACE-2010-1
See other projects for this call

Funding Scheme

CP - Collaborative project (generic)

Coordinator

EOTVOS LORAND TUDOMANYEGYETEM
Address
Egyetem Ter 1-3
1053 Budapest
Hungary
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 470 320
Administrative Contact
Katalin Juhászné Huszty (Dr.)

Participants (11)

NATURAL ENVIRONMENT RESEARCH COUNCIL
United Kingdom
EU contribution
€ 247 195,75
Address
Polaris House, North Star Avenue
SN2 1EU Swindon Wiltshire
Activity type
Research Organisations
Administrative Contact
Mark Andrew Clilverd (Dr.)
MAGYAR FOLDTANI ES GEOFIZIKAI INTEZET
Hungary
EU contribution
€ 243 230
Address
Stefania Ut 14
1143 Budapest
Activity type
Other
Administrative Contact
Balázs Heilig (Mr.)
UNIVERSITA DEGLI STUDI DELL'AQUILA
Italy
EU contribution
€ 214 240
Address
Piazza Santa Margherita 2
67100 L Aquila
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Rossella Rotesi (Dr.)
OULUN YLIOPISTO
Finland
Address
Pentti Kaiteran Katu 1
90014 Oulu
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Leila Risteli (Dr.)
UNIVERSITY OF OTAGO
New Zealand
EU contribution
€ 352 357
Address
Saint David Street
9054 Dunedin
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Craig J. Rodger (Dr.)
NATIONAL RESEARCH FOUNDATION
South Africa
Address
Meiring Naude Road Brummeria
0001 Pretoria
Activity type
Public bodies (excluding Research Organisations and Secondary or Higher Education Establishments)
Administrative Contact
Andrew Collier (Dr.)
NEW MEXICO INSTITUTE OF MINING AND TECHNOLOGY
United States
EU contribution
€ 112 720
Address
Leroy Place 801
87801 Socorro
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Anders Jorgensen (Dr.)
Instytut Geofizyki Polskiej Akademii Nauk
Poland
EU contribution
€ 137 230
Address
Ksiecia Janusza 64
01-452 Warsaw
Activity type
Research Organisations
Administrative Contact
Tadeusz Latala (Mr.)
UNIVERSITY OF WASHINGTON
United States
EU contribution
€ 40 200
Address
Brooklyn Avenue Ne 4333
98195 9472 Seattle Wa
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Robert Holzworth (Prof.)
Los Alamos National Security LLC
United States
Address
Ms 187
87545 Los Alamos Nm
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Reiner Friedel (Dr.)
SOUTH AFRICA NATIONAL SPACE AGENCY
South Africa
EU contribution
€ 154 557
Address
Mark Shuttleworth Street, Enterprise Building, Innovation Hub
0087 Pretoria
Activity type
Research Organisations
Administrative Contact
Sylnita Pijoos