Welcome! This is a project blog authored by personnel at University of Alaska Fairbanks, University of Illinois Champaign-Urbana, and Sandia National Lab. The project entails comparing model output from CAM-HOMME and CAM-WRF with each other and with observational data in the Arctic, with a focus on the Alaska domain.

Thursday, February 4, 2010

CAM boundary conditions at Illinois

The University of Illinois portion of this project involves creating high-resolution Weather Research and Forecasting (WRF) model simulations of Alaska. These regional simulations will span several years and will be forced at the lateral boundaries by output from an atmospheric model (CAM) at a typical climate model resolution.

The first step in this process involves creating the multi-year CAM simulation from which to gather output for the lateral boundary conditions. The CAM simulations will be run with prescribed surface boundary fields of SST and sea ice and will use prescribed observations of solar constant and greenhouse gas and aerosol concentrations. As a proof-of-concept, we have performed a year-long simulation of the CAM at T85 resolution - (256 longitudes x 128 latitudes) using surface boundary conditions starting in Sept. 1979 on our department linux cluster.

An animation of surface air temperature is included below:

Year-long animations of the sea level pressures and surface latent heat flux are also available at:

http://igloo.atmos.uiuc.edu/CAM/

Our next step is to get updated SST and sea ice boundary conditions for the 2000s decade and run the simulation for that decade - our study period.


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1 comment:

  1. jcFebruary 4, 2010 at 9:05 AM

    Wow, Bill, this is great. Thanks for the post. I will put up some info on the domain and time period if this gets ironed out in the next telecon. John, I'll look for an update from you.

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