Contribution of PRAISEto AMY08

Jun AsanumaTerrestrial Environment Research Center

University of Tsukuba

PRAISE: a new research groupPRAISE

Progressive Research on Atmosphere-Biosphere-Hydrosphere and their Interaction in Semi-Arid Northeast Asia (tentative)

Targeted area: Eastern MongoliaScientific foci

Land-atm. interactionInterannual & interseasonal variability of rainfall

Coordination & Cooperationwith Inst. Met. & Hydro., Mongoliawork as NE Asia regional group of MAHASRIwith CEOP, as a ref. sites and as semi-arid groupwith Asia flux (as a registered sites)with MAIRS arid/semi-arid groupwith UNESCO-IHP groundwater program.

A

B

Local evaporation

Source of the precipitable water vapor using RCM (Sato et al, 2007, JGR)

In Monglia ，・ local: 30-40%・ Central asia, Siberia, an

d Atlantic oceanIn inner Mongolia ，・ more from Tropical oc

eans Difference in the source

area

Monsoon related

Mongolia as the end reach of Asia Monsoon

A:Mongolia

B： Inner Mongolia

Background: Vegetation (USGS-GLCC)

Contour: Precipitation (CMAP,1979-2006, mm/year)

Gobi & Desert

Taiga Forest

Grassland

Intensive Obs. Regionmainly steppe grassland and taiga forest

Strong N-S gradient of precipitation and vegetation.

=> strong temporal variability of the land cover.

25year annual mean recycling ration at 105 km2 (Dirmeyer & Brubaker, 2007)

Annual Mean Recycling Ratio

Fairly larger recycling ratio

Contribution to AMY 08 　　

Observations & Data2 full surface flux sites (grassland, forest) in eastern Mongolia:

as CEOP2-reference sites & AsiaFlux sites

4 AWSs (rain, temp., wind speed, soil, etc.)

Research TargetsLand-atmosphere interaction:

especially, its biospheric and soil-moisture aspects.atmosphere -> biosphere: intercomparison with other AsiaFlux sites all over Asia.biosphere (esp. dyn. vegetation) <-> atmosphere: using LSMs

Interannual variability of precipitation and the monsoon.

Grassland

Forest

Grassland

Forest