Download Summary and Follow on of GAME

Summary and Follow on
of
GAME- Siberia Activity
Takeshi OHTA
Nagoya University, JAPAN
FORSGC, JAPAN
GISP 2003 / Khon Keaen, Thailand
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Activities

Water and energy exchanges above typical land surface
/ cross cutting studies
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Water balance in the Lena river basin
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Key words; Phenology, Tree ages, Permafrost, Snowmelt water
Key words; spatial distribution, permafrost
Modeling of water and energy exchange

Key words; winter processes
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Regional distribution of the fluxes obtained from the airplane
observations -> ABL/AAN
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Date set

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Key words; Dataset CD-ROM
Domestic workshop including not only GAME-Siberia but also other
projects related to Siberian regions

Key words; High-speed information exchanges
GISP 2003 / Khon Keaen, Thailand
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Water and energy exchanges

Importance of phenology
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Effects of tree ages and tree species
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There was no differences between the young and old stands,
and larch and pine forets.
Role of permafrost
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
There was a difference between these two forest types in
spring seasons.
Permafrost was buffer of the annual variation of precipitation
for evapotranspiration.
Role of snow melt water

Release of latent heat caused by refreezing of snowmelt
water was important for the increase of soiltemp.
GISP 2003 / Khon Keaen, Thailand
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Water balance and runoff characteristics
in the Lena river basin
3
0.8
1st-comp.
2nd-comp.
3rd-comp.
Direct runoff ratio

There was a significant difference
of water budget in the Lena river
basin.
Direct runoff characteristics
changed according to the
seasonal variation of permafrost
thawing depth.
Recession gradient

2
1
0
0.6
0.4
0.2
May
Jun.
Jul.
Aug.
Sep.
Figure 11. Seasonal changes in recession gradient.
GISP 2003 / Khon Keaen, Thailand
Jun.
Jul.
Aug.
Sep.
Figure 9. Seasonal change in direct runoff ratio.
4

5
0
4
1
3
2
2
Liquid
Solid
3
1
4
0
15-Apr
5
14-Jul
12-Oct
10-Jan 10-Apr
9-Jul
Solid water storage (mm)
Liquid water storage (mm)
Modeling of water and energy exchange
7-Oct
The winter processes, e.g. snow interception loss, were
slotted into the basic land surface model.

Solid water storage on the canopy is assumed to be about five
times of rainfall storage. The role of snow interception might be
important for water and energy cycle in the boreal zone.
GISP 2003 / Khon Keaen, Thailand
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Date set

The dataset CD obtained from
GAME-Siberia was published
in November, 2003. The CD is
delivered during this meeting.
GISP 2003 / Khon Keaen, Thailand
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Domestic workshop
including other projects related to Siberian
regions


A number of project, e.g. IGBP, Fluxnet, promoted
by Japanese foundation are operated in eastern
Siberia. It is necessary to implement high-speed
information exchanges.
Domestic WS
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Objectives
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
Summarizing the results obtained from GAME-Siberia
Information exchanges among the science projects in Siberia
Date and Place


17 – 19 Dec., 2004
Tokyo
GISP 2003 / Khon Keaen, Thailand
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Follow on
-Major topics unsolved in GAME-Siberis
The effects of plant (forest) ecosystem and physiology
 Ecological effect:
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
Physioligical effects


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stand structure (e.g. LAI, Stand density, Crown Projection)
aerodyanamics, energy balance on the floors and so on.
canopy conductance vs environment vs tree species
The winter processes
 Snow interception
 Heterogeneity of micrometeorological condition
snow/permafrost thawing
Long-term variations
 Warming issue
 Land use change
GISP 2003 / Khon Keaen, Thailand
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Follow on
-Project and/or Program


Frontier Observational Research System for Global Change
- FORSGC  Winter processes, Regional systems, Long-term monitoring
 1999 Core Research for Evolutional Science and Technology
- CREST The effects of biosphere on the water, energy an carbon cycles in
boreal forest zone
 2002 - 2007
Northern Eurasian Earth Science Partnership Initiative
- NEESPI  An umbrella project for a number of project in northern Eurasia
 2003 –
 By NASA and RAS
GISP 2003 / Khon Keaen, Thailand
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-FORSGC –
cooperation with CREST

Landsurface conditions related with the
energy cycle and their long-term
monitoring
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
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Water and energy exchanges in boreal
forest during the winter season
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Long-term monitoring of soil temp. and soil
moisture
Changes on permaforst cased by the warming
issue and landuse change
Snow/permafrost thawing characteristics
Snow interception loss
Runoff processes in Siberian region
Modeling of the above processes
Data-base of the boreal zone
GISP 2003 / Khon Keaen, Thailand
FORSGC Study Area
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- CREST – cooperation with FORSGC
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Plant physiological effects
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Forest ecological effects
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Canopy structure and aerodynamic characteristics
Evapotranspiration from forest floors
Winter processes
Spatial & temporal distributions of physiological
and ecological effects

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Responses of canopy conductance to environmental
variables
Climatic conditions and tree species and/or forest types
What is the controlling factors for these distributions?
Modeling of physiological/ecological effects in the
landsurface skeam

Estimating of on water/energy/carbon exchanges caused
by the biosphere changes under the global changes
CREST Study Line
GISP 2003 / Khon Keaen, Thailand
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- NEESPI 
NEESPI’s Role


To provide the “framework” for developing an
integrated understanding of the Earth system for
this part of the globe
NEESPI’s Goal




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Establish a large scale, interdisciplinary program
between the ecosystem, atmosphere and human
dynamics
Develop a science plan, initially based on U.S. &
Russia Earth Science research funding
Assess institution, information and infrastructure
resources in Russia & other northern Eurasia
Prepare research proposal
Develop international agreements that facilitate
joint research
Implement a high-speed information and data
exchange network
GISP 2003 / Khon Keaen, Thailand
NEESPI Study Area
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