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Explore the impact of land surface models on Arctic rivers using data from Sweden, Canada, and Russia. 27 groups from 11 countries participated, utilizing 28 models to assess river discharge, snow depth, and more. GEWEX project involving GLASS aims to advance land surface system evaluation and intercomparison. ALMA supports model comparison with stable data exchange format and procedures.
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PILPS 2e: Arctic Model Intercomparison Experiment • Stage 1: Torne/Kalix Rivers - 58,000 km2 river system in Sweden • Stage 2: Mackenzie River - 1,8000,000 km2 Canadian river • Stage 3: Lena River - 2,400,000 km2Russian river
PILPS 2e Participants • 27 groups participating, with • 28 different models, from • 11 different countries (Australia, Canada, China, France, Germany, Japan, Netherlands, Russia, Sweden, U.K., U.S.A.)
PILPS 2e Participants • Hadley Center, U.K. / MOSES • Canadian Forest Service, Northern Forestry Centre, Edmonton AB, Canada / IBIS • Dept. of Hydrology and Water Resources, University of Arizona, U.S.A. / SAST • Swedish Meteorological and Hydrological Institute and Department of Meteorology, Stockholm University, Sweden / RCA • National Center for Atmospheric Research (CNRM, Toulouse, France) / ISBA • NASA Goddard Space Flight Center and SAIC/General Sciences Corp. / HY-SSiB • GKSS Research Center, Institute for Atmospheric Physics, Germany / SEWAB • KNMI (Dutch MetOffice), The Netherlands / MECMWF • CSIRO Atmospheric Research, U.S.A. / CSIRO • Institute for Hydrospheric-Atmospheric Sciences, Nagoya University, Japan • Atmos. Phys. Sec. Atmos. Envir. Div. NIES / MATSIRO • Meteorological Service of Canada / CLASS • Water Systems Analysis Group, University of New Hampshire / AWBM • Macquarie University / CHASM
PILPS 2e Participants, cont. • NCEP/EMC and NWS Office of Hydrology, U.S.A. / NOAH • COLA land group, U.S.A. / COLA-SSi • COLA land group, U.S.A. / Bucket • Common land model working group, U.S.A. / CLM • Institute of Water Problems, Russian Academy of Sciences, Russia / SWAP • Institute of Geography, Russian Academy of Sciences, Moscow, Russia / SPONSOR • Department of Hydrology and Water Resources, University of Arizona and Georgia Institute of Technology, U.S.A / LSMS • Department of Hydrology and Water Resources, University of Arizona and Georgia Institute of Technology, U.S.A. / BATS • Chinese Academy of Sciences, China / IAP • UCLA, U.S.A. / SSiB • Department of Civil and Environmental Engineering, University of Washington, U.S.A. / VIC • European Center for Medium Range Weather forecasting. EC / ECMWF • Forecast Systems Laboratory (FSL, NOAA), U.S.A. / MAPS • Center of Ecology and Hydrology, Wallingford, U.K. / M-JCHMR
Model Assessment • River discharge at 20 stations • Snow depth at 8 stations • Snow water equivalent via surveys at 3 stations • Lake freeze/thaw at 19 lakes • Lake ice depth at 1 location • Soil frozen depth at 1 station • Soil temperature profile at 1 station • Snow areal extent via AVHRR
Global Land-Atmosphere System Study (GLASS) • GEWEX project which aims to encourage the development of a new generation of LSSs by coordinating their evaluation and inter-comparison; • Serves as an interface between the land-surface community and other GEWEX projects.
Assistance for Land-surface Modeling Activities (ALMA) • The section of GLASS which will provide infrastructure and technical support for model inercomparisons. • This includes specification of a stable data exchange format (netcdf with the GDT convention) and procedures to exchange data.
