Decadal variations of the quasi-stationary wave amplitude and zonal
structure are analyzed using the TOMS data. Seasonal dependence of total
ozone content (TOC) is considered. The amplitudes of quasi-stationary
planetary waves in TOC zonal distribution at high latitudes of Southern
Hemisphere are calculated for 1979-2005. The highest values of the
quasi-stationary wave amplitude at latitude 65S in October are observed.
The asymmetry of total ozone distribution over Antarctic region during
Austral spring is discussed. The amplitude and longitudinal position of
zonal anomalies are calculated for total ozone content distribution
along seven individual latitude bands at 5-degree intervals between 50S
and 80S. The mid-latitude ozone-rich collar has a mid-latitude maximum
with mean position between 90E-180E longitudes and with up to 390 DU.
The significant planetary wave TOC minimum eastward shift about 40
degrees in longitude is observed over Weddell Sea during 1979-2005,
whereas the zonal maximum is relatively stable in position. This
displacement is discussed in connections to latest findings of the
strengthening circumpolar westerlies and regional climate warming in
Antarctic Peninsula. Tropopause height anomalies over Antarctic region
show seasonal change associated with total ozone losses during spring
months. The tropopause height anomaly in West Antarctica coupled with
its increasing decadal trend could be involved in climate change in this
region. The research was made in the framework of the SCAR ICESTAR
Program, and ORACLE-O3 IPY Project, and partly supported by project
06BF051-12, Grant Greece-Ukraine M/86-2006, and Australian Antarctic
Science project 737.
Title:
Implementing a Virtual Workshop for Interdiscplinary collaboration on Grand Challenge Issues: Lessons Learned
During October of 2006 a Virtual Workshop (eWorkshop), sponsored by
CAWSES, NASA/LWS, eGY, IHY, NSF, and ICESTAR was held to discuss the
state of the Sun-Earth system during super substorms. This virtual
workshop used the Internet to allow world-wide participants to discuss
and exchange data using various web based tools. Presented here are the
technical aspects of the implementation and the lessons learned from
this preliminary workshop.
Title:
Investigating the state of the Sun-Earth system during extreme events: First science results of a worldwide online conference series
AA(University of Michigan, Atmospheric, Oceanic and Space Sciences Dept., Ann Arbor, MI 48109-2143 United States ; ), AB(Kyoto University, Kwasan and Hida Observatories Yamashina, Kyoto, 607-8471 Japan ; ), AC(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; ), AD(Boston University, Center for Space Physics, Boston, MA 02215 United States ; ), AE(MIT, Haystack Observatory, Westford, MA 01886 United States ; ), AF(NASA, Goddard Space Flight Center, Greenbelt, MD 20771 United States ; ), AG(NASA, Goddard Space Flight Center, Greenbelt, MD 20771 United States ; ), AH(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; ), AI(NCAR, High Altitude Observatory, Boulder, CO 80301 United States ; ), AJ(University of Alberta, Department of Physics, Edmonton, ALB T6G 2J1 Canada ; ), AK(Boston University, Center for Space Physics, Boston, MA 02215 United States ; ), AL(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; ), AM(University of Colorado, LASP, Boulder, CO 80303 United States ; ), AN(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; ), AO(Siena College, 515 Loudon Road, Loudonville, NY 12211-1462 United States ; ), AP(NASA, Goddard Space Flight Center, Greenbelt, MD 20771 United States ; ), AQ(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; )
Publication:
American Geophysical Union, Fall Meeting 2006, abstract #SA43A-01
2101 Coronal mass ejections (7513), 2164 Solar wind plasma, 2427 Ionosphere/atmosphere interactions (0335), 2431 Ionosphere/magnetosphere interactions (2736), 2784 Solar wind/magnetosphere interactions
Abstract Copyright:
(c) 2006: American Geophysical Union
Bibliographic Code:
2006AGUFMSA43A..01K
Abstract
This presentation reports on new science results from an online
conference entitled "Return to the Auroral Oval for the Anniversary of
the IGY" designed to bring together researchers worldwide: (1) to
investigate newly reported features in the auroral oval during substorms
that occur in the main phase of superstorms and how these features map
throughout geospace, (2) to explore implications for the state of the
geospace system, (3) to identify signatures associated with this
geospace state from equatorial to polar latitudes, (4) to investigate
the unusual aspects of the solar sources, and (5) to understand how
propagation from Sun to Earth modified the observed solar drivers. The
main focus of the first conference is on worldwide data exchange, the
construction of global data products and assimilative global views, and
identifying coupled chains of events from sun-to-Earth. The
collaborative conference data products and enhanced understanding of the
observed features of the events will form the basis for a follow-on
conference in 2007 focused primarily on theoretical studies and
collaborative simulation efforts between modeling groups, observers and
data analysts. This conference is the first in a series of sun-Earth
connection online conferences, sponsored by CAWSES, IHY, eGY, ICESTAR,
NASA/LWS, and NSF Atmospheric Science Programs, and designed to bring
interdisciplinary researchers together with the vast developing
cyber-infrastructure of large international data sets, high performance
computing and advanced visualizations to address grand challenge science
issues in a way not previously possible.
Title:
Developing cyber-infrastructure for addressing grand challenge questions in Sun-Earth system science: First results of a testbed worldwide online conference series
AA(University of Michigan, Atmospheric, Oceanic and Space Sciences Department, Ann Arbor, MI 48109-2143 United States ; ), AB(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; ), AC(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; ), AD(NCAR, High Altitude Observatory, Boulder, CO 80307 United States ; ), AE(NASA, Goddard Space Flight Center, Greenbelt, MD 20771 United States ; ), AF(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; ), AG(Boston University, Center for Space Physics, Boston, MA 02215 United States ; ), AH(University of Michigan, Atmospheric, Oceanic and Space Sciences Department, Ann Arbor, MI 48109-2143 United States ; ), AI(University of Michigan, Atmospheric, Oceanic and Space Sciences Department, Ann Arbor, MI 48109-2143 United States ; ), AJ(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; ), AK(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; ), AL(NASA, Goddard Space Flight Center, Greenbelt, MD 20771 United States ; ), AM(Johns Hopkins University, Applied Physics Lab, Laurel, MD 20723 United States ; )
Publication:
American Geophysical Union, Fall Meeting 2006, abstract #IN13B-1167
9810 New fields (not classifiable under other headings)
Abstract Copyright:
(c) 2006: American Geophysical Union
Bibliographic Code:
2006AGUFMIN13B1167K
Abstract
Software supporting an online conference series was developed with the
purpose of catalyzing interdisciplinary investigations in Sun-Earth
system science among large groups of researchers worldwide in
celebration of the 50th anniversary of the International Geophysical
Year in 2007. Transformative science in this area lies at the edges and
intersections of individual elements (the Sun, heliosphere,
magnetosphere, ionosphere and atmosphere) whose collective behavior
determines the global system response. Continuing progress requires
access to a vast developing cyber-infrastructure of large international
data sets, high performance computing and advanced visualization.
However, it also requires the development of new tools that bring these
advances into contact with groups of interdisciplinary and international
researchers so they can be used to attack grand challenge science issues
in a manner not previously possible. This presentation describes the
results of an eGY showcase project to develop a testbed online
conference series for this purpose. The conference series is a
collaborative effort between the CAWSES, IHY, eGY, ICESTAR, NASA/LWS and
NSF Atmospheric Sciences Programs. Lessons learned in developing this
first interface, as well as a discussion of key elements and how they
worked will be presented.
Title:
Heliosphere Impact on Geospace - Solar-Terrestrial and Aeronomy Research During the IPY Years
AA(Siena College, Department of Physics, Loudonville, NY 12211 United States ; ), AB(Finnish Meteorological Institute, P.O.Box 503, Helsinki, FIN-00101 Finland ; ), AC(CCLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX United Kingdom ; ), AD(University of Michigan, Department of Atmospheric, Oceanic and Space Sciences, Ann Arbor, MI 48109 United States ; ), AE(The University of Newcastle, School of Mathematical and Physical Sciences, Callaghan, NSW 2308 Australia ; ), AF(University of Bergen, Dept. of Physics and Technology, Bergen, N-5007 Norway ; ), AG(Instituto Fisica dello Spazio Interplanetario, Consiglio Nazionale delle Ricerche Tor Vergata, Via Fosso del Cavaliere snc, Roma, 00133 Italy ; )
Publication:
American Geophysical Union, Fall Meeting 2006, abstract #U14C-01
2400 IONOSPHERE (6929), 2700 MAGNETOSPHERIC PHYSICS (6939), 3300 ATMOSPHERIC PROCESSES, 7500 SOLAR PHYSICS, ASTROPHYSICS, AND ASTRONOMY
Abstract Copyright:
(c) 2006: American Geophysical Union
Bibliographic Code:
2006AGUFM.U14C..01W
Abstract
ICESTAR and IHY initiatives together with 27 other multinational
research projects will form one of the core projects of the forthcoming
International Polar Year (IPY, March 2007 - March 2009): IPY ID 63
"Heliosphere Impact on Geospace". The project has three main themes in
its scientific work: (i) Coupling processes between the different
atmospheric layers and their connection with solar activity, (ii) Energy
and mass exchange between the ionosphere, the magnetosphere, and the
heliosphere, and (iii) Inter-hemispheric similarities and asymmetries in
geospace phenomena. Examples of topics to be addressed are remote
sensing of ionospheric and radiation belt dynamics and of global
geoelectric circuit, effects of solar energetic particles in
mid-atmospheric chemistry, and planetary waves in the coupled
mesosphere-thermosphere- ionosphere system. The final goal is to achieve
better understanding on the geospace response to solar activity as a
unified system and consequently to improve our cababilities to predict
space weather phenomena. In addition to high-quality science IPY
anticipates its core projects to conduct comprehensive education and
public outreach activities and to develop efficient data sharing
methods. This presentation will discuss main scientific challenges of
the ICESTAR/IHY project in the context of the IPY overall picture. Some
examples of planned observational campaigns and outreach activities will
be presented and the progress in the establishment of virtual
observatories will be described.
Title:
Geospace Climatology: A Window to the Heliosphere Through Polar Regions
2134 Interplanetary magnetic fields, 2475 Polar cap ionosphere, 2730 Magnetosphere: inner, 6929 Ionospheric physics (1240, 2400)
Abstract Copyright:
(c) 2005: American Geophysical Union
Bibliographic Code:
2005AGUFMSM33D..05P
Abstract
A multitude of ground-based instruments and satellite missions allow us
to study near-Earth's space (geospace) globally and even
instantaneously. We can determine the magnetosphere-ionosphere coupling
in both the sunlit and dark polar caps studying ionospheric responses on
varying solar wind input from the time scales of minutes to solar
activity cycles. However, geospace data are very sparse; therefore, we
can address the ``geospace climatology'' only through a series of
empirical ionospheric electrodynamics models (i.e., models for ground
geomagnetic variations, ionospheric currents/convection, field-aligned
currents, auroral emissions) constructed separately for the northern and
southern polar regions and constrained to quiet and/or moderately
disturbed conditions. Parameterization of these models by the SW/IMF
strength and `clock angle' direction and by the Earth's dipole tilt
would help filling gaps in actual synoptic observations collected
through geospace, producing data-driven ``ionospheric windows'' to the
Heliosphere for geospace climatology studies. As we expand our studies
from the Earth to other planets, the proposed approach may help in
constraining physics-based (e.g., MHD) models of the SW/IMF propagation
through the solar system. The current status and progress of empirical
modeling of the geospace (ionospheric and magnetospheric)
electrodynamics through a solar activity cycle will be reviewed in
conjunction with various international initiatives: IHY, CAWSES,
ICESTAR, IPY, and eGY.
AA(University of Calgary, 2500 University Drive, Calgary, AB T2N 1B4 Canada ; ), AB(University of Calgary, 2500 University Drive, Calgary, AB T2N 1B4 Canada ; ), AC(University of Calgary, 2500 University Drive, Calgary, AB T2N 1B4 Canada ; ), AD(Lancaster University, Dept Communication Systems, Lancaster, LA1 4YR United Kingdom ; ), AE(University of Calgary, 2500 University Drive, Calgary, AB T2N 1B4 Canada ; ), AF(Finnish Meteorological Institute, Vuorikatu 24, Helsinki, FI-00101 ; ), AG(Lancaster University, Dept Communication Systems, Lancaster, LA1 4YR United Kingdom ; ), AH(University of California, Berkeley, Space Sciences Laboratory 7 Gauss Way, Berkeley, CA 94720 United States ; ), AI(Siena College, 515 Loudon Rd, Loudonville, NY 12211-1462 United States ; ), AJ(Physics Department, Siena College, 515 Loudon Road, Loudonville, NY 12211-1462 United States ; ), AK(Swedish Institute of Space Physics, Box 812, Kiruna, SE-981 Sweden ; )
Publication:
American Geophysical Union, Fall Meeting 2005, abstract #SM33D-04
2407 Auroral ionosphere (2704), 2748 Magnetotail boundary layers, 2794 Instruments and techniques, 6929 Ionospheric physics (1240, 2400), 7900 SPACE WEATHER
Abstract Copyright:
(c) 2005: American Geophysical Union
Bibliographic Code:
2005AGUFMSM33D..04D
Abstract
Advancements in computer, communications, and instrument technologies
have spawned an explosion of activity in ground-based geospace
observations. There is increasing interest in the development of virtual
observatories as we approach the International Polar and Heliosphysical
Years and the electronic Geophysical Year, and are faced with burgeoning
data sets from arrays of different instrument types the world over. We
are developing a virtual observatory for dealing with data from geospace
optical and riometer systems. While these two classes of instruments are
very different in their observational technique, they are close
relatives in what they observe, which is primarily auroral
precipitation. The GAIA (Global Auroral Imaging Access) Project is a
network-based set of tools for browsing summary data from All-Sky
Imagers (ASIs), Meridian Scanning Photometers (MSPs), and riometers
worldwide, and that provides indexes for direct access to data at PI
institutes. This program is the virtual observatory component of the IPY
Auroral Optical Network (AON) and GLORIA (Global Riometer Imaging Array)
projects, and falls under the ICESTAR IPY grouping. As well, GAIA is
being developed so as to be fully consistent with the data policies
described in the `Declaration of the eGY'. We demonstrate the GAIA
concept with ASI data from Canada and Finland, MSP data from Canada, and
riometer data from Canada and Scandinavia. We explore the requirements
that such a system must meet in order to be successful, which include
ease of use, credit to data providers, ability for data providers to
monitor usage, and reliance on software rather than hardware. The latter
is consistent with our concept of a summary data set consisting of
keograms, time series, and thumbnail images, a fully peer to peer data
access system, and a relational data base that allows for easy grouping
of and linkages between data. We describe how we are ensuring that GAIA
is compatible with larger efforts such as SPIDR and MADRIGAL so that
the tools we develop can be included in those systems if desired. We
finish with two points. First, GAIA will facilitate new and exciting
science. Second, `horizontal observatories' such as GAIA are the natural
building blocks for a `Super Virtual observatory' that would bring
together data from global networks of many different instrument types to
address new and interesting science questions.
Title:
Polar Gateways to Exploration of Icy Worlds in the Solar System
AA(NASA Goddard Space Flight Center, Space Physics Data Facility, Code 612.4, Greenbelt, MD 20771 ; ), AB(NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771 ; ), AC(NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771 ; ), AD(NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771 ; ), AE(NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771 ; ), AF(NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771 ; ), AG(Raytheon ITSS, Space Physics Data Facility, Code 612.4, NASA Goddard Space Flight Center, Greenbelt, MD 20771 ; ), AH(Raytheon ITSS, Space Physics Data Facility, Code 612.4, NASA Goddard Space Flight Center, Greenbelt, MD 20771 ; ), AI(Arizona State University, Dept of Geology, Tempe, AZ 85287-1404 ; ), AJ(University of Massachusetts Lowell, Center for Atmospheric Research, 600 Suffolk St, Lowell, MA 01854 ; ), AK(University of Kansas, Radar Systems and Remote Sensing Lab., 2291 Irving Hill Rd, Lawrence, KS 66045 ; ), AL(Bartol Research Institute, 217 Sharp Laboratory, University of Delaware, Newark, DE 19716 ; ), AM(University of Virginia, Engineering Physics, Thornton Hall Room B103, Charlottesville, VA 22904 ; )
Publication:
American Geophysical Union, Fall Meeting 2005, abstract #SM21A-0354
0728 Ice shelves, 2431 Ionosphere/magnetosphere interactions (2736), 2475 Polar cap ionosphere, 2479 Solar radiation and cosmic ray effects, 6221 Europa
Abstract Copyright:
(c) 2005: American Geophysical Union
Bibliographic Code:
2005AGUFMSM21A0354C
Abstract
The polar cryosphere and ionosphere of Earth provide unique testbeds for
active radio sounding and are gateways to exploration of other icy
worlds in the solar system such as Europa and Titan. In the context of
the International Polar Year and the International Heliophysical Year we
are planning coordinated measurements of Antarctic ice sheet
stratigraphy, the bottomside polar ionosphere, the polar magnetosphere,
and high energy cosmic ray showers from ground level to about 40 km
altitude. The analogous environment at Europa is the extremely thin
neutral atmosphere but comparably dense ionosphere formed by
interaction of the extremely intense radiation environment of the Jovian
magnetosphere with surface ices of Europa. The effort proposed to NASA
centers around Antarctic circumpolar balloon flights at high altitude
during IPY-IHY, and thereafter, of a new radio sounder instrument
called the Balloon Adaptable Radio Ice-Ionosphere Sounder (BARIIS) as an
add-on package to available cosmic ray balloon payloads. This
instrument would simultaneously sound at MHz radio frequencies, above
and below ionospheric cutoff, the subsurface ice below the balloon
ground track and the bottomside ionosphere above the balloon. Carried
out in conjunction with direct cosmic ray shower measurements by the
primary balloon payload, ground digisonde measurements, and geospace
satellite monitoring of space weather, the ionospheric sounding is
expected to improve knowledge of polar D region response to short-term
cosmic ray variations during the few weeks of each flight. Correlative
measurements will be made by the balloon and ground stations in
conjunction with those of the comparable Radio Plasma Imager instrument
on the IMAGE satellite in the polar magnetosphere. For the Antarctic
cryosphere the subsurface ice sounding offers the prospect of new
discoveries and improved measurements for Europa-like features such as
isochronal layers, subglacial lakes and ice streams, while also
contributing to the cumulative knowledge of polar ice sheet thickness
and change with time in comparison to previous surveys. For polar
ionosphere-magnetosphere-heliosphere studies our Polar Gateways team is
part of the conditionally endorsed ICESTAR-IHY (Interhemispheric
Conjugacy in Geospace Phenomena and their Heliospheric Drivers) lead
science group for IPY. Our cryospheric measurements are included as part
of the GIIPSY (Global Inter-agency IPY Polar Snapshot Year) group.
Title:
The Future of Systems Aeronomy in Addressing New Science Frontiers
AA(University of Michigan, Space Research Bldg, 2455 Hayward, Ann Arbor, MI 48109-2143 United States ; ), AB(The Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd., Laurel, MD 20723 United States ; ), AC(University of Michigan, Space Research Bldg, 2455 Hayward, Ann Arbor, MI 48109-2143 United States ; )
Publication:
American Geophysical Union, Fall Meeting 2005, abstract #SA42A-08
2427 Ionosphere/atmosphere interactions (0335), 2431 Ionosphere/magnetosphere interactions (2736), 2499 General or miscellaneous
Abstract Copyright:
(c) 2005: American Geophysical Union
Bibliographic Code:
2005AGUFMSA42A..08K
Abstract
The future will see a new era in our ability to characterize the state
of the sun-Earth system using the SEC Great Observatory, new electronic
data handling and data mining technologies, high-performance
sun-to-Earth models, new techniques for assimilation of sparse data, and
the development of innovative worldwide research tools through
integration of ground-based observing sites. The time has come to pull
these developing capabilities together into an investigation that seeks
to understand aeronomy at a higher level than has previously been
possible. Systems Aeronomy is a study of this global system behavior
but, more than that, it investigates the large-scale systems-level
features that result from elemental processes, like ion-neutral
coupling, plasma drifts or radiative cooling. Currently the TIMED
mission is making important contributions in identifying and
characterizing the "building block" processes that change, evolve and
combine to form the system response. Systems Aeronomy must have
observational, theoretical and computational components to succeed. One
of the key requirements is the ability to capture global data sets and
integrate them into a coherent picture of the ITM system and its
relationship to geospace. Success requires enhanced coordination between
operating satellites throughout the sun-Earth system, new techniques for
creating global maps from networks of ground-based and satellite-based
sensors, and a new level of international cooperation leveraging off
IPY2007, IHY2007, eGY2007, CAWSES, ICESTAR, and other planned worldwide
programs. Twenty years down the road, Systems Aeronomy will provide the
foundation for understanding planetary atmospheres, significantly extend
the range of useful space weather prediction, and provide an important
approach for investigating the impacts of anthropogenic and
climatological changes in the ITM and on the geospace system as a whole.
Title:
Deploying a Low Cost Virtual Observatory and Data Portal at a Small Liberal Arts College
AA(Instrumental Software Technologies, Inc., 77 Van Dam Street, Suite 10, Saratoga Springs, NY 12866 United States ; ), AB(Siena College, Department of Physics, Loudonville, NY 12866 United States ; )
Publication:
American Geophysical Union, Fall Meeting 2005, abstract #IN31B-1147
2407 Auroral ionosphere (2704), 9810 New fields (not classifiable under other headings), 9820 Techniques applicable in three or more fields
Abstract Copyright:
(c) 2005: American Geophysical Union
Bibliographic Code:
2005AGUFMIN31B1147S
Abstract
Studies of the polar upper atmosphere fundamentally require
international collaboration, and the Virtual Observatory (VO) paradigm
is ideally suited to enable such coordinated efforts. However, even
though VOs and distributed data systems (DDS) are critical in
facilitating the sharing and interpretation of global geospace datasets,
the design and implementation of a VO/DDS is often expensive and
requires technical expertise beyond that of many smaller institutions.
Currently, the Interhemispheric Conjugacy Effects in Solar-Terrestrial
and Aeronomy Research (ICESTAR) community is assessing various VO/DDS
models, and we describe one such ongoing initiative that addresses the
obstacles stated above by employing legacy code, open source software,
and the ability to incorporate a variety of commonly used software
packages (e.g., IDL, Matlab). This VO/DDS has visualization and data
translation modules that allow users to examine and download data in a
variety of formats. The requirements and protocols necessary to ensure
successful data exchange, distribution and visualization between other
VOs are further explored.
Title:
The Scientific Committee on Antarctic Research (SCAR) in the IPY 2007-2009
AA(Texas A&M University, 318C Admin Bldg 1112 TAMU, College Station, TX 77843-1112 United States ; ), AB(Ohio State University, 130 Orton Hall 155 S. Oval Mall, Columbus, OH 43210-1522 United States ; ), AC(Scientific Committee on AntarcticResearch, Scott Polar Research Institute Lensfield Road, Cambridge, CB2 1ER United Kingdom ; )
Publication:
American Geophysical Union, Spring Meeting 2005, abstract #C42A-01
The Scientific Committee on Antarctic Research (SCAR) initiates,
develops, and coordinates international scientific research in the
Antarctic region. SCAR is assuming a leadership position in the IPY
primarily through its five major Scientific Research Programs; ACE,
SALE, EBA, AGCS, and ICESTAR; which will be briefly described.Antarctic
Climate Evolution (ACE) promotes the exchange of data and ideas between
research groups focusing on the evolution of Antarctica's climate system
and ice sheet. The program will: (1) quantitatively assess the climate
and glacial history of Antarctica; (2) identify the processes which
govern Antarctic change and feed back around the globe; (3) improve our
ability to model past changes in Antarctica; and (4)document past change
to predict future change in Antarctica. Subglacial Antarctic Lake
Environments (SALE) promotes, facilitates, and champions cooperation and
collaboration in the exploration and study of subglacial environments in
Antarctica. SALE intends to understand the complex interplay of
biological, geological, chemical, glaciological, and physical processes
within subglacial lake environments through coordinated international
research teams. Evolution and Biodiversity in the Antarctic (EBA) will
use a suite of modern techniques and interdisciplinary approaches, to
explore the evolutionary history of selected modern Antarctic biota,
examine how modern biological diversity in the Antarctic influences the
way present-day ecosystems function, and thereby predict how the biota
may respond to future environmental change. Antarctica and the Global
Climate System (AGCS) will investigate the nature of the atmospheric and
oceanic linkages between the climate of the Antarctic and the rest of
the Earth system, and the mechanisms involved therein. A combination of
modern instrumented records of atmospheric and oceanic conditions, and
the climate signals held within ice cores will be used to understand
past and future climate variability and change in the Antarctic as a
result of natural and anthropogenic forcings over the last 100,000
years. Interhemispheric Conjugacy Effects in Solar-Terrestrial and
Aeronomy Research (ICESTAR) will study the interactions between and
collective behavior of the many component parts of the Earth system,
including the interaction between the natural environment and human
society. Objectives include specification and prediction of the state of
the system and assimilation and integration of data from disparate
sources to understand the complex geospace environment.
Title:
Autonomous Antarctic Magnetometer Arrays to Support ICESTAR (Interhemispheric Conjugacy Effects in Solar - Terrestrial and Aeronomy Research)
AA(University of Michigan, Space Research Building 2455 Hayward, Ann Arbor, MI 48109-2143 United States ; ), AB(University of Michigan, Space Research Building 2455 Hayward, Ann Arbor, MI 48109-2143 United States ; ), AC(Siena College Siena College, Department of Physics 515 Loudon Road, Loudonville, NY 12211 United States ; )
Publication:
American Geophysical Union, Fall Meeting 2004, abstract #SH31B-02
2494 Instruments and techniques, 2784 Solar wind/magnetosphere interactions, 2794 Instruments and techniques, 0694 Instrumentation and techniques
Bibliographic Code:
2004AGUFMSH31B..02C
Abstract
ICESTAR is a new SCAR (Scientific Committee for Antarctic Research)
initiative striving for international coordination of interhemispheric
research in the areas of solar-terrestrial physics and polar aeronomy,
promoting exchange of research ideas, and sharing experimental data
from various arrays of geophysical instruments deployed over the polar
regions. A specific need for the ICESTAR program is additional high
resolution autonomous magnetometer stations on the Antarctic Plateau to
provide a dense two-dimensional array of stations conjugate to the
station arrays in Greenland. The new stations would extend the existing
British Antarctic Survey low power magnetometer array poleward and
eastward. The new stations will utilize a low-noise, high resolution
magnetometer to obtain 1-second data thus enabling magnetic pulsation
investigations. An additional important design criteria is the need
for near real time data access and this will be achieved using IRIDIUM
satellite data acquisition. We present our design for the next
generation Antarctic autonomous magnetometer station, deployment
considerations, and a brief overview of ICESTAR scientific plans.
