Multiple Session Announcements and Calls for Abstracts
American Geophysical Union Fall Meeting
14-18 December 2015
San Francisco, California
Abstract submission deadline: 11:59 p.m. Eastern Daylight Time
Wednesday, 5 August 2015
For further information or to submit an abstract, please go to:
http://fallmeeting.agu.org/2015/abstract-submissions
The American Geophysical Union (AGU) is currently accepting abstract
submissions for the 2015 Fall Meeting. The meeting will be held 14-18
December 2015 in San Francisco, California.
PLEASE NOTE: Abstract submission deadline for all sessions is
11:59 p.m. Eastern Daylight Time on Wednesday, 5 August 2015.
Specific criteria and instructions for submitting abstracts are
available online, at:
http://fallmeeting.agu.org/2015/abstract-submissions.
Conveners of the following three sessions invite presentations from the
Arctic community:
- Session 8005: Utility and quality of reanalyses in the polar regions
Conveners: David Bromwich and James A Renwick
Invited speakers: Richard Cullather, Tom Wagner, and Julien Nicolas
Session Description: Retrospective analyses (or reanalyses) are key
tools for investigating climate variability and change in the data
sparse polar regions. They combine observations with analysis estimates
from a short-term model forecast (background) and take into account
uncertainties of the observations and the background. Originally focused
on the atmosphere only, some reanalyses now focus solely on the ocean or
the land surface, while coupled atmosphere-ocean reanayses are starting
to be produced.
There are many challenges to producing reliable reanalyses in the polar
regions. Contributions to assessing the current state of reanalyses in
the polar regions are solicited on the following: intercomparison of
reanalyses, both global and regional; polar-specific challenges
regarding observations, data assimilation, model physics, oceanic
boundary conditions, especially sea ice; reanalysis for the Southern
Ocean and Antarctica before the start of the satellite era; ensemble
approaches for background error, reanalysis uncertainty, and compositing
reanalyses; and reliability of trends and climatologies.
https://agu.confex.com/agu/fm15/preliminaryview.cgi/Session8005
- Session 8362: Applications of Near Surface Geophysics in Periglacial
Regions
Conveners: Martin Briggs, Seth Campbell, and Reginald Muskett
Invited speakers: Kiya Riverman, Jeffrey McKenzie, Scott Tyler,
and Andrew Parsekian
Session description: Throughout the world, permafrost, sea ice, and
glaciers are changing, with significant impacts on the surrounding
ecosystem, environment, and society. Surface and airborne geophysical
methods are increasingly used to monitor these changes because of the
strong contrasts in geophysical properties that exist between frozen and
thawed ground, or between solid-ice features and liquid water.
Geophysical methods also offer insight into groundwater flow and
surface-water/groundwater exchange dynamics. This session is open to
ground or airborne-platform geophysical studies, focused on scientific
objectives such as detecting and monitoring glacier change; detection
and delineation of ground ice or permafrost; and monitoring the
thickness and extent of sea ice. The session will consider seismic,
resistivity, ground-penetrating radar, gravity, magnetics, and other
electromagnetic studies over a variety of spatial scales. We also
encourage the submission of multidisciplinary projects that incorporate
the impacts of frozen material change on cold-regions ecology and/or
biochemistry.
https://agu.confex.com/agu/fm15/preliminaryview.cgi/Session8362
3.Session 8954: Astronomical Forcing of Past Climate
Conveners: Rajarshi Roychowdhury, Edward Gasson, Qiuzhen Yin,
and Molly O'Rourke Patterson
Invited speakers: Ayako Abe-Ouchi, Clay Tabor, Jeremy Shakun,
and Timothy Herbert
Session description: It has long been known that the glacial,
interglacial cycles archived in geological records vary at orbital
frequencies. The most accepted theory connecting glacial-interglacial
cycles to the variations of the Earth's Orbital Parameters was first
presented by Milankovitch, which has since then been elaborated upon
several times and has developed into the astronomical or Milankovitch
theory of climate change. However, the astronomical theory of climate
change fails to explain certain features of Earth's climate history,
such as the 41-kyr dominance of obliquity in the late Pliocene-early
Pleistocene, the onset of the Mid Pleistocene Transition, the
100,000-year problem, etc. We encourage contributions focused on
answering these pertinent questions based on paleoclimate proxy studies,
theoretical and/or modeling studies. This session also aims to bring
together recent studies of global and regional climate responses to
astronomical forcing at different time scales (e.g. Miocene, Pliocene,
Quaternary) when the climactic regimes were different.
https://agu.confex.com/agu/fm15/preliminaryview.cgi/Session8954
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