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From:
Ken Dean <ken.dean@xxxxxxxxxxxxx>
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Dear IUGG Members,
I would like to remind you to submit your abstracts to the volcano
remote sensing session at the IUGG General Assembly in Perugia Italy,
2-13 July 2007. The abstract deadline is 28 January 2007.
The session is VSO 15 and entitled,:
"New Techniques using Remote Sensing Data for Volcano Monitoring and
Analysis: Observations, Integration, Hazard Assessments and Modeling "
Convener:
Ken Dean, Alaska Volcano Observatory, University of Alaska, USA
email: ken.dean@xxxxxxxxxxxxx
Co-Conveners
David Rothery, The Open University, UK
<mailto:D.A.Rothery@xxxxxxxxxx>D.A.Rothery@xxxxxxxxxx
Valerio Lombardo, Remote Sensing Laboratory
email: lombardo@xxxxxxx
A description of the session is provided below.
The use of remote sensing data and modeling to monitor and analyze
volcanoes, and to assess hazards, has significantly improved over the
past few years. These data provide a better understanding of eruption
processes, distribution of eruption deposits and hazard assessments.
New sensors have been launched that provide various facets of resolution
not previously available. The number of satellites with hourly to daily
coverage has increased, and some of these have pixels as small as 250 m
pixels and as many as 36 spectral bands. Moderate spatial resolution
sensors provide multi-spectral bands in visible and IR wavelengths with
pointing capabilities that can provide coverage every few days. Data
with spatial resolution up to 60 cm are also available. Due to these
improvements, subtle increases in activity and volcanic processes can
now be detected, measured and analyzed, such as increases in thermal
flux and details in the structure and composition of volcanic clouds and
deposits. Modeling has also become an important tool for prediction of
activity using DEMs to analyze topographic change and wind-fields to
predict the movement of volcanic clouds. New field-instruments, such as
TIR cameras, radiometers, and webcams detect volcanic processes not seen
from satellites and provide calibration and validation of satellite
data. Parallel to sensor developments, improvements in connectivity,
infrastructure and web browsers have resulted in better and more timely
analysis capabilities and data distribution. Satellite data are now
received by local stations to provide real-time images to monitor and
assess volcanoes in Italy, Central America, Alaska, Hawaii, Kamchatka
and other regions. Contributions on the use of these new remote sensing
systems and techniques to analyze or model volcanoes, eruptions and
hazard assessments are encouraged for this session. Also, with the
aging of moderate resolution sensors (e.g. ASTER and Landsat), we
encourage presentations on replacement or development of new sensors to
fill this void.
For additional information on the IUGG general assembly 2007 visit
http://www.iugg2007perugia.it/
Best regards,
Ken Dean
Ken Dean
Geophysical Institute, Alaska Volcano Observatory
903 Koyukuk Dr., P.O. Box 757320
Fairbanks, Alaska 99775-7320
Tel. (907) 474-7364
Fax (907) 474-7290
email: ken.dean@xxxxxxxxxxxxx
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