TITLE

Neural Networks for Postprocessing Model Output: ARPS

AUTHOR(S)
Marzban, Caren
PUB. DATE
June 2003
SOURCE
Monthly Weather Review;Jun2003, Vol. 131 Issue 6, p1103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The temperature forecasts of the Advanced Regional Prediction System are postprocessed by a neural network. Specifically, 31 stations are considered, and for each a neural network is developed. The nine input variables to the neural network are forecast hour, model forecast temperature, relative humidity, wind direction and speed, mean sea level pressure, cloud cover, and precipitation rate and amount. The single dependent variable is observed temperature at a given station. It is shown that the model temperature forecasts are improved in terms of a variety of performance measures. An average of 40% reduction in mean-squared error across all stations is accompanied by an average reduction in bias and variance of 70% and 20%, respectively.
ACCESSION #
9705576

 

Related Articles

  • Taking TEMPERATURES.  // World Almanac for Kids;1997, p283 

    This article provides information on Fahrenheit and Celsius temperature scales, and instructions for conversion between the two. Two systems for measuring temperature are commonly used in weather forecasting. One is Fahrenheit (abbreviated F). The other is Celsius (abbreviated C). Another word...

  • Weather.  // Grand Saline Sun (TX);10/12/2006, Vol. 110 Issue 41, p1 

    The weather report presents temperatures, rainfall and precipitation totals during the period of October 3-9, 2006.

  • Predicting and Downscaling ENSO Impacts on Intraseasonal Precipitation Statistics in California: The 1997/98 Event. Gersiiunov, Alexander; Barnett, Tim P.; Cayan, Daniel R.; Tubbs, Tony; Goddard, Lisa // Journal of Hydrometeorology;Jun2000, Vol. 1 Issue 3, p201 

    Three long-range forecasting methods have been evaluated for prediction and downscaling of seasonal and intraseasonal precipitation statistics in California. Full-statistical, hybrid-dynamical-statistical and full-dynamical approaches have been used to forecast El Nino-Southern Oscillation...

  • TAKING TEMPERATURES.  // World Almanac for Kids;2003, p292 

    Two systems for measuring temperature are used in weather forecasting. One is Fahrenheit (abbreviated F). The other is Celsius (abbreviated C). Another word for Celsius is Centigrade. Zero degrees Celsius is equal to 32 degrees Fahrenheit.

  • Taking Temperatures.  // World Almanac for Kids;2000, p299 

    This article provides information on Fahrenheit and Celsius temperature scales, and instructions for conversion between the two. Two systems for measuring temperature are used in weather forecasting. One is Fahrenheit (abbreviated F). The other is Celsius (abbreviated C). Another word for...

  • TAKING TEMPERATURES.  // World Almanac for Kids;2002, p296 

    Two systems for measuring temperature are used in weather forecasting. One is Fahrenheit (abbreviated F). The other is Celsius (abbreviated C). Another word for Celsius is Centigrade. Zero degrees Celsius is equal to 32 degrees Fahrenheit.

  • Payette Avalanche Center. Groom, John // Avalanche Review;Oct2008, Vol. 27 Issue 1, p18 

    The article offers updates from the Payette Avalanche Center in Idaho. Approximately 430 inches of snow have accumulated in the West Central Mountains by the End of April 2008 while the seasonal snow water equivalent in the McCall area was posted between 115% and 125% above average. In the...

  • Scientists Use the Past as a Guide to Future Climate Change.  // Bulletin of the American Meteorological Society;Dec2000, Vol. 81 Issue 12, p3028 

    Focuses on the prediction of climatic changes by international scientists. Use of previous climate observations; Expectations on global mean temperature; Estimates produced by computer climate models around the world.

  • Taking TEMPERATURES.  // World Almanac for Kids;1999, p283 

    No abstract available.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics