Model: Prince William Sound Weather Research and Forecasting (PWS-WRF) Model

Modeler:  Peter Olsson, UAA Alaska Experimental Forecast Facility (AEFF)

Funding Entity:  Oil Spill Recovery Institute (OSRI), AOOS

  • Input: Gridded initial and forecast fields from a larger “host” model
  • Scope:  The fine grid covers Cook Inlet, to south of Kachemak bay and the totality of PWS plus the area in between and a bit of the GOA
  • Resolution: 564 km (EW) x 312 km (NS), vertically up to 30 millibars in the atmosphere (model uses pressure as vertical coordinate)
  • Timeline: 2004-present

Strengths: Does a credible job of reproducing resolvable scale barrier and gap jet winds. Produces finer and more resolved wind, temperature and pressure fields than host model.  Produces 2D precipitation fields and surface radiation fluxes. In general produces most all meteorological variables of interest

Weaknesses: Current resolution limited by 4 km grid-spacing of model. Tends to overproduce precipitation in complex terrain. Limited currently by 45 km grid spacing of input data from host model.

Additional Data Needed: More open water (vs coastal) buoys.   Smaller grid spacing of both the model and the host model.

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