1 / 11

Perspectives in Computational Earth System Science

Explore the goals, components, and advancements in Earth System Models from an oceanographer's viewpoint, covering atmosphere, biosphere, cryosphere, geosphere, and hydrosphere processes and phenomena at global, regional, and local scales. Learn about coupled prognostic equations, spatial and temporal scales, configurations, and state-of-the-art technologies like nesting techniques. Discover the potential for increased realism, finer resolutions, and longer time scales in evolving Earth System Models, aiming for more complex and accurate simulations. Dive into the future outlook with finite elements and adaptive grids for improved modeling accuracy and international contributions.

jake
Télécharger la présentation

Perspectives in Computational Earth System Science

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Perspectives inComputational Earth System Science an oceanographer’s view Aike Beckmann Division of Geophysics, Department of Physical Sciences 21.3.2006

  2. EARTH SYSTEM SCIENCES ATMOSPHERE (Meteorology, Climatology) BIOSPHERE (Biology) CRYOSPHERE (Glaciology) GEOSPHERE (Geophysics, Geology) HYDROSPHERE (Oceanography, Hydrology) GOALS: comprehensive understanding of the global, regional and local processes and phenomena of the system

  3. EARTH SYSTEM MODELS cosmos.enes.org/ public/project.html

  4. EARTH SYSTEM MODELS ATMOSPHERE LAND SURFACE OCEAN SEA ICE ICE SHEETS BIOGEOCHEMISTRY - based on: coupled prognostic nonlinear partial differential equations - spatial scales: km to global - temporal scales: days to several millennia - configurations: global or regional

  5. STATE-OF-THE-ART • NUMEROUS COMPONENT MODELS ARE AVAILABLE • COUPLING TECHNOLOGY IS AVAILABLE • COMPUTER RESOURCES ARE AVAILABLE • 100 km resolution, decadal studies (global models) • 10 km resolution, decadal studies (regional models) • ROBUST AND FLEXIBLE 2-WAY NESTING TECHNIQUES EMERGE • FIRST PRODUCTION RUNS CAN BE CARRIED OUT

  6. ESMs IN PROGRESS (IPCC WG1, 2001)

  7. GOALS • MORE REALISM = FINER RESOLUTION + MORE COMPLEXITY • LONGER TIME SCALES http://crga.atmos.uiuc.edu/publications/horizons/hires.html 4/3x4/3 4x5

  8. GOALS • A FINNISH COMPONENT: HIGH LATITUDES

  9. METHODS • CONTINUED MODEL IMPROVEMENT • DEVELOPMENT OF PARAMETRIZATIONS • RIGOROUS VALIDATION • PRODUCTION RUNS (e.g., IPCC) • FOR ICE-OCEAN MODELLING ALONE to significantly contribute to international projects we need at least an order of magnitude better turnaround than currently available

  10. OUTLOOK finite elements, adaptive grids http://www.tstt-scidac.org/applications/climate.html

  11. THE END • Thank you !

More Related