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Highlights of CEOP/WEBS

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Presentation on theme: "Highlights of CEOP/WEBS"— Presentation transcript:

1 Highlights of CEOP/WEBS
Diurnal variation of ground-air temperature gradient (Tsfc-Tair) were much under-predicted in GCMs Fix an altitude-dependent systematic error in GEWEX-SRB shortwave algorithm by comparing with Tibet in situ data Validate LDAS-UT at Mongolia (for soil moisture) and Tibet CEOP sites (for surface energy budget)

2 Evaluate GCMs with RHP data
Diurnal range of multi-sites averaged annual mean of (Tsfc-Tair) was under-predicted in GCMs, due to under-predicted heat transfer resistance (Yang et al. JMSJ2007a)

3 2. Evaluate satellite products with RHP data
Shortwave radiation of GEWEX-SRB v2.5 was underestimated by 20% in Tibet, due to an altitude-dependent systematic error (Yang et al. GRL 2006)

4 3a. Validate LDAS-UT at Mongolia AMSR-E soil moisture site
AMSR-E validation site Obs. soil moisture at 16 sites 16-sites mean soil moisture compared well (Data provided by Dr Kaihotsu)

5 3b. LDAS-UT application to Tibet, 2003
Seasonality of distributed Bowen Ratio LDAS-UT NCEP


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