Forecast Pressure
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Forecast Pressure
description
Forecast Pressure. ASOS Pressure Sensor. 12-km. Eta 24-h 03 March 00UT 1999. Eta 48-h 03 March 00UT 1999. An example of a short-term forecast error. ETA. AVN. UKMO. NOGAPS. 48-hr Forecasts Valid 00 UTC 8 February 2002. AVN. ETA. UKMO. NOGAPS. - PowerPoint PPT Presentation
Transcript of Forecast Pressure
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Forecast Pressure
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ASOS Pressure Sensor
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12-km
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An example of a short-term forecast error
Eta 24-h
03 March 00UT 1999
Eta 48-h
03 March 00UT 1999
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48-hr Forecasts Valid 00 UTC 8 February 2002
AVN
UKMO
ETA
NOGAPS
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24-Hr Forecasts Valid 00 UTC 8 February 2002
AVN
UKMO
ETA
NOGAPS
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Station Locations
Tatoosh Is.
Cape Arago
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24 h Coastal Errors
Large Errors
Inter-annual variability
TTI, WA
Cape Arago, OR
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48-h Errors
48h errors much larger and frequent than 24-h errors
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GFS vs. Eta 24-h errors
NCEP GFS better than Eta on average
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48-h errors
GFS over forecastsEta under forecasts