Application of a three-dimensional prognostic model during the ETEX real-time modeling exercise: Evaluation of results

Conference · Thu May 01 04:00:00 EDT 1997

OSTI ID:469144

Griggs, D P

Increases in computing capabilities and ready access to large-scale model output make it possible to employ advanced three-dimensional prognostic models to forecast the long-range transport of toxic or radioactive gases for emergency response. The Savannah River Technology Center (SRTC) of the U.S. Department of Energy`s Savannah River Site demonstrated this during the European Tracer EXperiment (ETEX). ETEX, conducted in the Fall of 1994, provided an opportunity to evaluate the performance of models for long-range atmospheric pollutant transport and dispersion. A comparison of SRTC forecast results for the first ETEX experiment with measured surface tracer gas concentrations shows that the predicted plume is transported too quickly and surface concentrations are low. However, modeling studies show that the forecast performance is significantly improved if convective parameterization is not employed.

• Research Organization: Westinghouse Savannah River Co., Aiken, SC (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 469144
• Report Number(s): WSRC-MS--96-0766; CONF-970419--9; ON: DE97004967
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS
AIR POLLUTION MONITORING
ATMOSPHERIC CIRCULATION
DIFFUSION
MATHEMATICAL MODELS
RADIOACTIVITY TRANSPORT
THREE-DIMENSIONAL CALCULATIONS
TOXIC MATERIALS