Date

Extended Call For Papers
Session JHW002: Climate-Permafrost-Hydrology Interactions: The Impact of
Changing Climate on Cold Regions Hydrology
International Association of Hydrological Sciences
International Union of Geodesy and Geophysics General Assembly
9-13 July 2007
Perugia, Italy

Extended Abstract Submission Deadline: Wednesday, 28 February 2007

For further information and to submit an abstract, please go to:
http://www.iugg2007perugia.it

or contact:
Philip Marsh
National Water Research Institute, Canada
E-mail: philip.marsh [at] ec.gc.ca


Papers are being accepted until Wednesday, 28 February 2007 for the
following session at the International Association of Hydrological
Sciences workshop being held in conjunction with the International Union
of Geodesy and Geophysics General Assembly on 9-13 July 2007, in
Perugia, Italy:

Session JHW002: Climate-Permafrost-Hydrology Interactions: The Impact of
Changing Climate on Cold Regions Hydrology

Session Description:
In the cold regions, the surface condition is strongly controlled by
complex interactions between the climate, permafrost, and hydrology.
These interactions are a subject of study during the upcoming
International Polar Year. Interactions include those between climate,
snow cover, soil moisture, soil heat conduction, evaporation, and
vegetation. In order to consider future changes in hydrology due to
anthropogenic climate change it is necessary to understand these
interactions. The nature of these interactions and our ability to model
them, however, are currently very limited. It is expected that both
natural climate variability and anthropogenic climate change will result
in significant changes to both the permafrost and local hydrological
processes. Due to the complex interactions involved it is difficult to
quantify changes in active layer depth, soil temperature, and permafrost
depth in areas near the current zero-degree isotherm. Factors of
interest include: vegetation, snow accumulation and melt, snow free
period, and sub-surface flow patterns as related to active layer depth
and runoff.

This workshop will bring together experts in the field of climate
change, permafrost, and cold regions hydrology to discuss important
issues and advances in our understanding of the interactions between
climate, permafrost, and hydrology, and to consider future advances in
this field. Contributions are solicited on, but not limited to, the
following topics:
- interactions between climate, permafrost, and hydrology;
- documented past changes in climate, permafrost, and hydrology;
- potential impacts of future climate variability and change on
permafrost and hydrology; and
- the ability of existing hydrologic and land-surface models to consider
the complex interactions between climate, permafrost, and hydrology, and
the ability of these models to consider the impact of climate change on
the hydrologic system in permafrost dominated regions.

Convener:
Philip Marsh
National Water Research Institute, Canada
E-mail: philip.marsh [at] ec.gc.ca

Co-Conveners:
Lev Kuchment, Russia
Tingjun Zhang, USA/China
Oliver Frauenfeld, USA
Tetsuo Ohata, Japan

For further information and to submit an abstract, please go to:
http://www.iugg2007perugia.it