Villefranche - towards a synthesis

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• Characteristics of a successful programme
• Must address key science question(s)
• Global relevance
• Degree of interdisciplinarity, if possible
• Why now?
• So what?
• Who cares?
• Why Antarctica?
• Why SCAR?
• Must make a difference

2
International context
Many activities already underway GEM, ILWS,
CAWSES, ICS-n, e-STAR, IPY Limited opportunity
for new measurements with satellites New starts
Themis, Aeronomy of ice TIMED another two
years Stereo, Solar-B launch 2005-06 Cluster
December 2005 Polar September 2005 IMAGE
?? MMS- delayed Ground-based networks never been
better Models now sufficiently mature for
assimilation GRID technology now maturing
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Mission Statement To create an integrated,
quantitative description of the upper atmosphere
over Antarctica, and its coupling to the global
atmosphere and the geospace environment. Rational
e We do this to resolve open topical questions
of earth system science in which Antarctica
occupies a privileged or key position
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Objectives

• Interhemispheric science - need to quantify and
  understand the similarities and differences
• Seasonal effects in electrodynamics, neutral
  heating, neutral dynamics, etc.
• Dipole offset effects and the role in
  electrodynamics and coupling to the atmosphere.
• The role of the ionospheric conductivity in
  conjugacy and electrodynamics.
• The relationship between micro-scale and
  global-scale phenomena
• Mesosphere and lower thermosphere as the upper
  boundary to the neutral atmosphere, and a lower
  boundary of geospace.
• Inner Magnetospheric Dynamics and its
  consequences on the atmosphere
• Global atmospheric electric circuit
• the high latitude effects - conjugacy issues
• atmospheric consequences
• Schumann Resonances (Antarctic is quietest place
  on Earth!)

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Rationale

• Emergence of new data sets (volume/growth of data
  sets over last few years)
• New Satellite data including IMAGE, POLAR, TIMED
• New Magnetometer chains
• New SuperDARN radar networks
• New Meteor Radars
• New Digisonde data
• Emergence of GRID technology
• Convergence of Data and Models
• Creation of tools to visualize and utilize global
  data sets
• Uniqueness of Antarctic
• Poles are not symmetric (magnetic offsets, etc)
• Land over South pole (I.e. can put instruments
  there and physics different)
• Must be an international cooperative effort - Why
  SCAR?
• Data products are created by international teams
  and in order to conduct global science need to
  merge global data sets.
• Extension of the Antarctic master data directory.
• Links to COMNAP - good forum for coordination.
• Why is should this science be funded?
• Comprehensive, interhemispheric studies of the
  atmosphere
• Important element of Earth System Science

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Methodology

• Create a data portal to facilitate the sharing
  and interpretation of global data sets.
• Linkage to Antarctic database
• Encouraging the collaboration of global data sets
• Unification of data sets
• Calibration of magnetometers, imagers, radars,
  etc.
• Identify gaps in observations and encourage new
  observations.
• Coordinate joint studies on the science topics
  outlined above.
• Working Groups
• 3 Working groups on science
• Interhemispheric wg have 2 co-chairs because of
  size
• Solar-terrestrial
• Aeronomical
• Inner magnetosphere
• Global atmospheric electric circuit
• Data working group
• Have a chair and 3 members from other 3 working
  groups to tie them together
• Leaders WG Chairs

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Deliverables

• Implement data portal - Aaron Ridley
• Polar mag - Mervyn Freeman, Alan Weatherwax
  Kirsti Kauristie
• SuperDARN - Mike Pinnock (BAS), Ermanno Amata
• Polar MLT radar/aeronom (LIDAR/optical) - Scott
  Palo
• Digisonde - Bodo Reinisch
• Optical - Eric Donovan, Nikolai Ostgaard
• VLF data -
• Riometer -
• TEC -
• Atmospheric electric magnetic fields - Martin
  Fullerkrug
• Quantification of the role of seasonal
  differences in polar ionospheric conductance and
  their effects - Aaron Ridley
• Constraints on models based on conjugate remote
  sensing of inner magnetospheric dynamics -
  Eftyhia Zesta
• Characterization of the basic state of the polar
  middle atmosphere - Scott Palo
• Quantification of the AC and DC global circuit
  and ionospheric modification - Martin Fullerkrug
• Characterization of the spatial and temporal
  properties of mesoscale convection in the
  ionosphere - Mervyn Freeman

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Public Awareness

• Participate in SCAR open science conference
• Coordination and collaboration with CAWSES during
  campaign periods
• Community awareness through scientific workshops
• Inform the space weather user community of
  scientific advances
• Link with the European Public Space Weather Week

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Milestones

1. Data portal (2005-2006)
2. Define architecture of portal
3. Identify all available data sets to address the
   scientific objectives (by each working group).
4. Evaluate existing software that could be used for
   a portal
5. Identify central location and implement data
   portal
6. Identify and implement the necessary tools (in
   the portal or by individual researchers) to
   analyze the data collected in the portal
7. Utilize the tools to conduct basic scientific
   research and complete the list of deliverables
8. Identify lack of instrumentation necessary to
   address scientific objectives and make
   recommendation to the community to fill the gaps
9. Apply numerical models based on the understanding
   gained by milestone 3 to provide an integrated,
   quantitative description of the upper atmosphere
   over Antarctica

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Leadership and Tasking

• Proposal Writer Allan Weatherwax and Aaron
  Ridley
• Chairman Allan Weatherwax (US)
• Co-Chairwoman Kirsti Kauristie (Fin)
• Working Group Leaders
• Data portal WG Aaron Ridley (US) and Mervyn
  Freeman (UK)
• Co-Chairs of Interhemispheric WG Scott Palo (US)
  and Eric Donovan (Can) and Nikoli Ostgaard (Nor)
  and Yang Huigen (China) and Masaki Tsutumi
  (Japan) and Jean-Paul Villain (France)
• Chair of Inner Magnetosphere WGEftyhia Zesta
  (US) and Yuri Yampolski (Ukr)
• Chair of Atmos. Electric WG Martin Fullekrug
  (UK) and Gary Burns (Aus) and Mitsuteru Sato
  (Japan)
• Ex-Officio Member of Steering Committee
• Maurizio Candidi

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• Unifying requirement
• Data provision through a portal
• Value added parameters
• Algorithms for reconstruction
• Assimilation into models
• Visualisation
• To address the key science areas
• Unique leadership, outward looking
• Community requirement

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Why Antarctica?

• Larger displacement of magnetic pole from
  geographic pole
• Conductivity
• Dipole tilt
• Weak B field larger precipitation fluxes
• Land on which to deploy experiments
• Different underlying atmosphere
• Land/ocean, ozone heating/ tides and planetary
  waves

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Science Objectives Agree number and scope of
science themes Identify a few (2-3) likely
deliverables/science targets per theme Identify
point of contact for theme