Real-time NAM parallel test

Evaluation results for NAM parallel:

1. PRECIPITATION THREAT AND BIAS SCORES

2. UPPER AIR STATISTICS

3. NEAR-SURFACE STATISTICS


:

1 December 2013 - 28 February 2014 : ops NAM/nests vs parallel NAM/nests

The NAM parallel log with further details can be found here.

NOTE : Parallel NAM nests are only run at 00z


1. PRECIPITATION THREAT AND BIAS SCORES

CONUS,
24-60 hour forecasts

NAM parallel

Eastern US, 24-60 hour forecasts

NAM parallel

Western US, 24-60 hour forecasts

NAM parallel

CONUS, 24-h forecasts

NAM parallel

CONUS, 36-h forecasts

NAM parallel

CONUS, 48-h forecasts

NAM parallel

CONUS, 60-h forecasts

NAM parallel

Eastern U.S., 24-h forecasts

NAM parallel

Eastern U.S., 36-h forecasts

NAM parallel

Eastern U.S., 48-h forecasts

NAM parallel

Eastern U.S., 60-h forecasts

NAM parallel

Western U.S., 24-h forecasts

NAM parallel

Western U.S., 36-h forecasts

NAM parallel

Western U.S., 48-h forecasts

NAM parallel

Western U.S., 60-h forecasts

NAM parallel


2. UPPER AIR STATISTICS

12-60 h forecasts

Parameter CONUS RMS Error CONUS Bias Error Alaska RMS Error Alaska Bias Error
Height X X X X
Temperature X X X X
Relative Humidity X X X X
Specific Humidity X X X X
Wind X X


3. NEAR-SURFACE STATISTICS - Diurnal Observed vs Forecast Mean


2-M Temperature
Alaska (00z cycle)
Alaska (12z cycle)
Eastern US (00z cycle)
Eastern US (12z cycle)
Western US (00z cycle)
Western US (12z cycle)
2-M Dew Point Temp
Alaska (00z cycle)
Alaska (12z cycle)
Eastern US (00z cycle)
Eastern US (12z cycle)
Western US (00z cycle)
Western US (12z cycle)
2-M RH
Alaska (00z cycle)
Alaska (12z cycle)
Eastern US (00z cycle)
Eastern US (12z cycle)
Western US (00z cycle)
Western US (12z cycle)
10-M Wind Speed
Alaska (00z cycle)
Alaska (12z cycle)
Eastern US (00z cycle)
Eastern US (12z cycle)
Western US (00z cycle)
Western US (12z cycle)


4. NEAR-SURFACE STATISTICS - Diurnal RMS and Bias Error vs Observations


2-M Temperature
Alaska (00z cycle)
Alaska (12z cycle)
East CONUS (00z cycle)
East CONUS (12z cycle)
West CONUS (00z cycle)
West CONUS (12z cycle)
2-M Dew Point T
Alaska (00z cycle)
Alaska (12z cycle)
East CONUS (00z cycle)
East CONUS (12z cycle)
West CONUS (00z cycle)
West CONUS (12z cycle)
2-M RH
Alaska (00z cycle)
Alaska (12z cycle)
East CONUS (00z cycle)
East CONUS (12z cycle)
West CONUS (00z cycle)
West CONUS (12z cycle)
10-M Wind Speed
Alaska (00z cycle)
Alaska (12z cycle)
East CONUS (00z cycle)
East CONUS (12z cycle)
West CONUS (00z cycle)
West CONUS (12z cycle)
Sea Level Pressure
Alaska (00z cycle)
Alaska (12z cycle)
East CONUS (00z cycle)
East CONUS (12z cycle)
West CONUS (00z cycle)
West CONUS (12z cycle)


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PRIVACY / COLLECTION OF INFORMATION STATEMENT