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1
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- Use Case #1: Enhanced Road Weather Forecasting Enabled by Clarus
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2
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- Two primary objectives
- Assess the impact of Clarus data on weather and pavement predictions
- Provide enhanced Clarus-enabled forecasts for utilization in the
Non-winter Maintenance and Operations Decision Support Tool and the
Multi-state Control Strategy Tool.
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3
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- GRIDDED MODEL RUNS - For each test event, a WRF spatial forecast was
generated for each twelve hours, with the forecast being rerun every six
hours
- POINT ROAD FORECASTS - An RWFS/METRo point forecast was generated for
each hour for the next 8 days, with the forecast being rerun every hour
- Chosen test cases for high impact events of rain, wind, snow, cold and
warm extremes.
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4
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5
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6
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7
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8
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9
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10
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11
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- Inclusion of Clarus data did not degrade the gridded forecast
- Inclusion of Clarus data provides small but significant improvement in
many of the meteorological variables – especially road temperature point
forecasts
- Inclusion of Clarus data showed improvement in the forecast of
fine-scale precipitation features but not significant overall
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Notes
