Project Overviews
An integrated understanding of the terrestrial water and energy cycles
across the NEESPI domain through observations and modeling
PI: Eric F. Wood (Princeton University)
Co-PIs: Laura Bowling (Purdue University) and Alexander Oltchev
(Severtsov Institute of Evolution and Ecology Problems)
Collaborators: N. Speranskaya, K. Tysentko and N. Lemeshko (State
Hydrological Institute, Russia), A. Sogachev (Helsinki University), N.
Tchebakova (Sukachev Institute of Forest, Russia), J. Kurbatova, N.
Vygodskaya, and A. Varlagin (Severtsov Institute of Evolution and Evology
Problems), and O. Panferov (Goettingen University, Germany)
Science Questions
How have changes in climate, land cover and water management in northern Eurasia over
the last half-century affected the land surface hydrology and flood
frequency, and what are the impacts at regional to continental scales?
To what extent can observed changes
in seasonal discharge be attributed to land use change and water management
versus climate variability?
What are the effects of
anthropogenic activities such as water and land management on water and
energy fluxes across the NEESPI domain and how are they compounded by the
presence of permafrost, snow, and wetlands?
How well
can hydrologic processes related to permafrost, land and wetland hydrology,
and impacts from land cover change and water management be represented by our
VIC LSM and how can it be improved through the synthesis of local field data
and remote sensing observations? <
How does the hydroclimatology of the
NEESPI region relate to continental and global water and energy cycle
processes?
Diagnosis and prognosis of effects of changes in lake and wetland
extent on the regional carbon balance of northern Eurasia (NEESPI)
PI: Dennis Lettenmaier (U. of Washington)
Co-PIs: Kyle McDonald (JPL) and Laura Bowling (Purdue University)
Collaborators: Gianfranco DeGrandi (EU Joint Research Centre, Italy),
Reiner Schnur and Martin Heimann (Max Planck Institut fur Meteorologie,
Germany), Nina Speranskaya and Kirill Tsytsenko (State Hydrological
Institute, Russia), and Daniil Kozlov and Yury Bochkarev (Moscow State
University)
Science Questions
How have changes in lake and wetland
extent in northern Eurasia over the last half-century
affected the region's carbon balance and what will the effects be over the
next century?
What areas within the region have
been and will be affected by changes in lake/wetland extent?
How are ongoing changes in the
tundra region affect the dynamics of wetlands and how will these changes
affect the carbon balance? What will the effects be over the next century?
How well can current sensors (MODIS,
SAR) detect changes in wetland extent?
Can high resolution SAR products be
used to provide seasonal and interannual variations in lake/wetland extent?
Collaborative research: Understanding change in the climate and
hydrology of the Arctic land region, synthesizing the results of the ARCSS
Fresh Water Initiative Projects
PI: Eric F. Wood (Princeton University)>
Co-PIs: Dennis Lettenmaier (U. of Washington), John
Cassano (U. of Coloardo), and
Charles Vorosmarty (U. of New Hampshire)
How do changes in arctic land
processes affect the climate of the region?
What are the implications of these
changes for the arctic hydrologic cycle (including coupling and feedbacks
with the atmosphere)?
What are the impacts of changes in the
arctic freshwater system on global climate?
How can the results from the FWI
studies be used to better understand the hydrologic processes affecting
observed change in the freshwater balance of the pan arctic land system?
To what
extent are the observed changes in Arctic terrestrial hydrologic cycle due to
imported change from other regions (via atmospheric processes), and to what
extent are the observed terrestrial hydrologic changes exported to the
atmosphere and to the ocean system?
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