http://hydro.iis.u-tokyo.ac.jp/GLASS/http://www.iges.org/gswp/

Scientific Topics to be discussed Re-run of the baseline simulation?

What is the “best” forcing?ERA for meteorologyGPCC (wind under catch?) for precipitationradiation update for spin-up period.

“new Baseline simulation” with revised Precipitation? sensitivity runs?, due date?

Better parameter dataset?Strictly controlled baseline simulations for multi-

model analysis: root depth, depth of soil layer, …Soil depth information

another sensitivity experiments?

http://hydro.iis.u-tokyo.ac.jp/GLASS/http://www.iges.org/gswp/

Scientific Topics to be discussed(2) Confirmation on ALMA

How energy and water balances are expected to be satisfied?

Error=SWnet+LWnet-Qle-Qh-Qg+Qa-Qf-Qv-delSurfHeat/dt – delColdCont/dt?...

http://hydro.iis.u-tokyo.ac.jp/GLASS/http://www.iges.org/gswp/

Scientific Topics to be discussed(3) Overall evaluation matrix

[COLA, Adam, ICC] Global fluxes, global water(& energy) budget

[COLA, ICC] 10-year climatology (annual/monthly/daily?)[Adam] Cold and warm season analyses

Quantitative analysis of the performanceLet the modelers analyze their products

[any] Flux measurement site/campaign datasets[COLA] Remote sensing, [IIS] River discharge,

[FRSGC] Total water storage[any] Regional focus GHP

!need to prepare validation datasets available!

http://hydro.iis.u-tokyo.ac.jp/GLASS/http://www.iges.org/gswp/

Scientific Topics to be discussed(4) Linkage with another projects/communities…

[Adam, Randy] Link with GLACÉ, [Adam, IIS, UKMO, Andy] BGC models, G-projects, …

Another sensitivity studies:Repeat of baseline but soil properties correspond

to coarser (one step up) soil property:Giving by soil type map or property distribution?Randy (&Christa) will prepare the property data.Nudging hydraulic property? Fracture in rocks?Due date? (Oct.15, 2004 January 2005?)

http://hydro.iis.u-tokyo.ac.jp/GLASS/http://www.iges.org/gswp/

Logistical Topics to be discussed Following meetings:

Special session in the GEWEX 5th Conference?AMS 2006 at Atlanta?

Publication strategiesOverview articleSpecial issue on JGR-Atmosphere?

Data distribution within GSPW2: monthly mean TAR ball: PASS:“kanpai” UID:”gswp2”

Data publication for outside of GSWP2 Research Funding

http://hydro.iis.u-tokyo.ac.jp/GLASS/http://www.iges.org/gswp/

GSWP3 Soil wetness project total terrestrial water

storage change projectIncluding ground water (GRACE mission)acronym:

Target:Longterm (~100 year? 1979-2004) simulation?

trend, interannual variation, …

Horizontal water transfer (irrigation, …)

ImplementationNeed enough time for evaluation/review of the

forcing data before start the real simulations

http://hydro.iis.u-tokyo.ac.jp/GLASS/http://www.iges.org/gswp/

Dimensions Longer period?

ERA40? (1958-)/ ISCCP starts from 1982/83Some reanalysis starts from 1979 onward50 year? 100 year?

Change in land surface condition is it considered in the reanalysis?

Tackle with “pan-evaporation trend” issues

Better quality? different spatial & temporal resolution? Isotopes included, Societal application, … Merge GSWP and LDAS