2006/05/15 Thanh NGO-DUC Page 1 Lab meeting Contents MM5-MSE (MM5 - Mainland South East Asia) 72-hour forecast –MM5 –Couple to TRIP GSWP2 storage GRACE.

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Presentation transcript:

2006/05/15 Thanh NGO-DUC Page 1 Lab meeting Contents MM5-MSE (MM5 - Mainland South East Asia) 72-hour forecast –MM5 –Couple to TRIP GSWP2 storage GRACE paper submitted to WWR in Feb. 2006: major revision 

2006/05/15 Thanh NGO-DUC Page 2 Lab meeting MM5-MSA MM5 NOAH LSM Real-time dataforecast fields TRIP or TRIP with reservoirs Runoff+drainage flood forecast 2 domains: D01 ~ 72 km,D02 ~ 24 km run once per day, at 3a.m. download boundary data from NCEP: ~35 minutes running time for 72-h forecast: ~ 30 minutes (shui, 1 processor) available online

2006/05/15 Thanh NGO-DUC Page 3 Lab meeting MM5-MSA From satellite on May 13rd MM5, 72h from 12h GMT May 14th Chanchu storm

2006/05/15 Thanh NGO-DUC Page 4 Lab meeting MM5-MSA Next steps: couple MM5-MSA with TRIP -Flow velocity: actually 0.5 m/s in TRIP, maybe good enough for modeling at monthly timescale. But to do flood forecast, more realistic representation of flow velocity should be taken into account ! ??? -Use the routing map from Hydro1k Surface runoffunderground runoff

2006/05/15 Thanh NGO-DUC Page 5 Lab meeting MM5-MSA How to simulate river flow velocity? (Schulze et al., Advances in Geosciences, 2005; Oki et al., Hydrological Sciences, 2001) Manning equation: n: river bed roughness R: hydraulic radius S: river slope Assuming river bed is shaped as a rectangle D: river depth W: river width Allen et al., Water Resources Bulletin, 1994 Q b : bankfull discharge

2006/05/15 Thanh NGO-DUC Page 6 Lab meeting GSWP2 – land water storage The second Global Soil Wetness Project (GSWP-2): compare and evaluate 10-year simulations by 13 LSMs Simulations are in “offline mode” at a 1°×1° resolution, spanning the years GSWP2 outputs TRIP land water storage SST Topex-Poseidon Ocean heat ocean variability analyze relationships?

2006/05/15 Thanh NGO-DUC Page 7 Lab meeting GSWP2 – land water storage ORCHIDEE – Thermosteric sea level (Ngo-Duc et al., GRL, 2005) Decadal scale ? Validate ? Interannual scale

2006/05/15 Thanh NGO-DUC Page 8 Lab meeting GSWP2 – land water storage Thank you for your attention

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