Date

Multiple Session Announcements
2011 International Union of Geodesy and Geophysics
28 June - 7 July 2011
Melbourne, Australia

  1. J-CO2 - Snow and Avalanches in the Southern Hemisphere

  2. M12 - Mesoscale and Synoptic Scale Meteorology in the Arctic and
    Antarctic

  3. JM-05 - Manifestation of Anthropogenic Forcing and Natural
    Variability in the Arctic and Antarctic Climate Systems


  1. J-CO2 - Snow and Avalanches in the Southern Hemisphere

Organizers of Session J-C02, entitled "Snow and Avalanches in the
Southern Hemisphere," announce a call for abstracts. The session will be
convened at the 2011 International Union of Geodesy and Geophysics
(IUGG), scheduled for 28 June - 7 July 2011 in Melbourne, Australia.

Snow is both a hazard and a resource. Snow avalanches threaten mountain
communities as well as some industrial activities worldwide, but snow
also provides a valuable resource for snow tourism and is critical for
water availability in many alpine river catchments. This session is
devoted to the latest results on snow cover processes, snow melt, snow
storms, avalanche formation, and case studies of catastrophic snow
avalanche cycles and their corresponding meteorological and snowpack
conditions. A particular focus will be on studies from the Southern
Hemisphere. In regard to case studies emphasis is placed on both the
examination of recent catastrophic snow and avalanche events and the
examination of major avalanche path histories and their changing
avalanche regimes.

The session aims at improving our understanding of snow, snow storms,
and catastrophic snow avalanche cycles and their corresponding
meteorological and snowpack conditions in order to improve both
avalanche forecasting and risk management. Organizers particularly
encourage studies from the Southern Hemisphere, but welcome
contributions from around the world.

Abstract submission deadline: Monday, 17 January 2010.

For an overview of the IUGG meeting, please go to the conference
website: http://www.iugg2011.com. Full abstract details, including an
abstract template and the link for abstract submission, are available
at: http://www.iugg2011.com/program-abstracts.asp.

For details on session J-C02, please click on the 'Snow and Avalanches
in the Southern Hemisphere' link at:
http://www.iugg2011.com/program-iacs.asp.

If you have further questions, please contact the session conveners:
Alejandro Casteller
Email: casteller [at] mendoza-conicet.gov.ar

Jordy Hendrikx
Email: j.hendrikx [at] niwa.co.nz


  1. M12 - Mesoscale and Synoptic Scale Meteorology in the Arctic and
    Antarctic

Organizers of Session M12, entitled "Mesoscale and Synoptic Scale
Meteorology in the Arctic and Antarctic," announce a call for abstracts.
The session will be convened at the 2011 International Union of Geodesy
and Geophysics (IUGG), scheduled for 28 June - 7 July 2011 in Melbourne,
Australia.

Modern mesoscale and synoptic scale meteorology has arrived at the
Arctic and Antarctic. Developments in the last decade have been seen in
observing and numerical modeling in these remote portions of the Earth.
This combination has lead to better understanding of polar atmospheric
phenomena and improved weather forecasting capabilities. This symposium
aims to bring together studies of both synoptic scale and mesoscale
meteorological phenomena in the Arctic and Antarctic. Studies using in
situ or remote sensing observations as well as numerical studies or a
combination are encouraged in this session. Sample topics areas include
studies of polar low systems, high wind events, including katabatic
winds, significant weather events, storm-track studies and data
syntheses from reanalysis.

Organizers are particularly interested in soliciting papers from the
polar meteorological community, but welcome submissions from other
disciplines. Observational, modeling, and process studies are welcome.

Abstract submission deadline: Monday, 17 January 2010.

For an overview of the IUGG meeting, please go to the conference
website: http://www.iugg2011.com. Full abstract details, including an
abstract template and the link for abstract submission, are available
at: http://www.iugg2011.com/program-abstracts.asp.

For details on session M12, please click on the 'Mesoscale and Synoptic
Scale Meteorology in the Arctic and Antarctic' link at:
http://www.iugg2011.com/program-iamas.asp.

If you have further questions, please contact the session conveners:
Tom Lachlan-Cope
Email: tlc [at] bas.ac.uk

Matthew Lazzara
Email: mattl [at] ssec.wisc.edu


  1. JM-05 - Manifestation of Anthropogenic Forcing and Natural
    Variability in the Arctic and Antarctic Climate Systems

Organizers of Session JM-05, entitled "Manifestation of Anthropogenic
Forcing and Natural Variability in the Arctic and Antarctic Climate
Systems," announce a call for abstracts. The session will be convened at
the 2011 International Union of Geodesy and Geophysics (IUGG), scheduled
for 28 June - 7 July 2011 in Melbourne, Australia.

This last decade has seen record sea ice-extent minima in the Arctic
while the Antarctic has shown little change in sea ice variability. At
the same time, the Greenland ice sheet, Antarctic Peninsula ice shelves,
and West Antarctic outlet glaciers and surface temperatures are all
showing increasing evidence of a change in behavior. The combined
effects of anthropogenic forcing and natural variability modes are thus
yielding different levels of response in the atmosphere, ocean, and
cryospheric components of the two polar climate systems and a
combination of both atmospheric and oceanic drivers are controlling the
cryospheric climate response.

This session will look at the contrasting climate responses in
atmosphere, ocean and cryosphere, asking several key questions:

- Where can we detect the anthropogenic signal in the polar climate
system (e.g. temperature, sea level pressure, sea ice extent, ocean
water mass properties)?
- Identifying how the large-scale natural variability driving the
climate system affects these same climate variables, whether the
changes exceed natural variability "noise" levels in the system, and
does reality mirror model-projected change.
- Are the main modes of natural variability influencing the Polar
Regions (AO, PDO, SAM and ENSO) themselves experiencing changes in
frequency, strength, and patterns due to forcings from increasing
greenhouse gases and changes to ozone and aerosols?

Organizers are interested in soliciting papers from the atmospheric,
oceanic, and cryospheric communities, from observational, theoretical,
and modeling perspectives, addressing these questions and the role of
natural variability and/or anthropogenic signals in individual climate
components, or across the climate system.

Abstract submission deadline: Monday, 17 January 2010.

For an overview of the IUGG meeting, please go to the conference
website: http://www.iugg2011.com. Full abstract details, including an
abstract template and the link for abstract submission, are available
at: http://www.iugg2011.com/program-abstracts.asp.

For details on session JM-05, please click on the 'Manifestation of
Anthropogenic Forcing and Natural Variability in the Arctic and
Antarctic Climate Systems' link at:
http://www.iugg2011.com/program-iamas.asp.

If you have further questions, please contact the session conveners:
Siobhan O'Farrell
Email: siobhan.ofarrell [at] csiro.au

David B. Reusch
Email: dbr120 [at] psu.edu