GSWP Workshop in Kyoto

1
GSWP Workshop in Kyoto
Taikan Oki Institute of Industrial
Science University of Tokyo
Heian Kaikan, Kyoto, September 13-15, 2004
2
Goals of This Workshop

• Monitor the progress of the GSWP2
• Check the performance of ICC
• Communicate each other on
• Water and energy balance issues
• Data handling
• Current status of the numerical experiments
• Discuss about the future of GSWP2
• Following meetings AMS San Diego,
• Publication strategies,
• Data publication

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Goals of GSWP2 (1)

• Produce the best global data sets of soil
  moisture, surface fluxes, and related hydrologic
  quantities (including runoff) for 1986-1995 with
  1x1 degree grid spacing considering the
  uncertainties associated with
• Land surface models more than 20 LSSs
• Model parameters 2 kinds of vegetation etc.
• Forcing data 3 kinds of reanalysis data,
  corrected precipitation, etc.
• Temporal and spatial scales to run LSSs

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Goals of GSWP2 (2)

• Develop and test in situ and remote sensing
  validation, calibration, and assimilation
  techniques over land.
• Provide a large-scale validation and quality
  check of the ISLSCP-II data sets.
• Compare LSSs, and conduct sensitivity analyses of
  specific parameterizations.
• Interannual variation of soil moisture (etc.)
• Transferability of soil moisture estimated by
  LSSs one to another.

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Quality Checks

• All the mandatory variables are included?
• Apparent error or broken data in the file?
• Compatible with ALMA conventions?
• name of variables, signs and units
• Values within reasonable range for each variable?
• Consistency of the energy and water balances?
• Validations by local flux obs., river discharge,
  and satellite RS (total water storage?).

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Inter Comparisons

• Compare the energy and water balances
• 10 year mean global field
• Any drift of the state variables?
• Annual/monthly means and their variations
• Histogram of daily (or pentad) values
• Transferability of soil moisture
• Inter-annual variation of the global fields
• ENSO/NAO/Dipole over land ? Nature!
• Relation between empirical classification of
  model behaviors and model structures

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Applications

• Feedback to ISLSCP
• Best Reasonable global field of soil moisture,
  river runoff, evapotranspiration,
• Apply GSWP2 outputs as SST over land for AGCM
  experiments
• World water resources assessment
• PUB (Prediction of Ungaged Basins) by IAHS
• Components considered in LSSs and estimated
  global water energy balances
• with a table of LSS structures by ICC

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GSWP2 for GEWEX

• Science and Implementation Plan is ready.
• http//www.iges.org/gswp/
• http//www.tkl.iis.u-tokyo.ac.jp8080/gswp2/
• GSWP2 fits to major objectives of GEWEX
• Obj1 produce consistent descriptions of the
  Earths energy budget and water cycle and their
  variability and trends, over land.
• Obj2 water cycle process and climate feedbacks
• Obj3 developing improved parameterizations
• Obj4 determining the predictability
• Obj5 water resources and applications

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Logistics (1)

• All the presenters are asked to provide their
  presentation files to Mr. Naota Hanasaki, the
  person in charge for ICC.
• Presentations can be made by the common PC or you
  can plug in your Laptop.
• Please consult at the registration desk with Mr.
  Kei (K) Yoshimura, the research associate of
  IIS/UT, and Ms. Kayoko Takino at RIHN, for
  logistics and travel support issues.

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Logistics (2)

• All the participants are invited to the Banquet
  of the GSWP2 workshop tonight, Monday Sep. 13, at
  Shirakawa no ma, on the 3rd Floor of Heian
  Kaikan, here, from 1830.
• Group dinner is planned on Wednesday, Sep 15, at
  an authentic Japanese restaurant in Gion
  district, the most famous historic district in
  Kyoto. Cost will be approximately
  5,000yen/person. Please inform the registration
  desk about your interest of participation.

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THANK YOU!Enjoy the Workshop!
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Scientific Topics to be discussed

• Re-run of the baseline simulation?
• What is the best forcing?
• ERA for meteorology
• GPCC (wind under catch?) for precipitation
• radiation 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?

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Scientific Topics to be discussed(2)

• Confirmation on ALMA
• How energy and water balances are expected to be
  satisfied?
• ErrorSWnetLWnet-Qle-Qh-QgQa-Qf-Qv-delSurfHeat/d
  t delColdCont/dt?...

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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 performance
• Let 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!

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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?)

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Logistical Topics to be discussed

• Following meetings
• Special session in the GEWEX 5th Conference?
• AMS 2006 at Atlanta?
• Publication strategies
• Overview article
• Special issue on JGR-Atmosphere?
• Data distribution within GSPW2 monthly mean TAR
  ball PASSkanpai UIDgswp2
• Data publication for outside of GSWP2
• Research Funding

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GSWP3

• Soil wetness project ?total terrestrial water
  storage change project
• Including ground water (?GRACE mission)
• acronym
• Target
• Longterm (100 year? ?1979-2004) simulation?
• trend, interannual variation,
• Horizontal water transfer (irrigation, )
• Implementation
• Need enough time for evaluation/review of the
  forcing data before start the real simulations

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Dimensions

• Longer period?
• ERA40? (1958-)/ ISCCP starts from 1982/83
• Some reanalysis starts from 1979 onward
• 50 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

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Reminds

• If you want to have your oral presentation,
  please let me know. We may be able to find a time
  slot for you.
• Tomorrow morning, lets start from 930, not from
  900 as printed on the agenda (there is slight
  change in the agenda tomorrow).
• If you are interested in going to the group
  dinner on Wednesday, Sep. 15, please inform to
  Ms. Takino at the registration desk.
• Banquet starts from 1800 at Shirakawa room on
  the 2nd floor of this Heian kaikan. All the
  participants are welcome.

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Take Bus 59 or 201 from Karasuma Imadegawa to
Keihan Shijo
Imadegawa
HeianKaikan
Bus 10 from KarasumaMarutamachi to Keihan Shijo
Marutamachi
Bus 202 from KarasumaMarutamachi to Gion
Keihan Line
Oike
Kamo River
NawateDori
Higashi Oji
Shijo
Gion
KeihanShijo
Kankara 075-532-4455
Kawaramachi
Karasuma
Hanami Koji