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Increasing the reliability of reliability diagrams

Bröcker, Jochen and Smith, Leonard A. (2007) Increasing the reliability of reliability diagrams. Weather and Forecasting, 22 (3). pp. 651-661. ISSN 0882-8156

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Identification Number: 10.1175/WAF993.1


The reliability diagram is a common diagnostic graph used to summarize and evaluate probabilistic forecasts. Its strengths lie in the ease with which it is produced and the transparency of its definition. While visually appealing, major long-noted shortcomings lie in the difficulty of interpreting the graph visually; for the most part, ambiguities arise from variations in the distributions of forecast probabilities and from various binning procedures. A resampling method for assigning consistency bars to the observed frequencies is introduced that allows for immediate visual evaluation as to just how likely the observed relative frequencies are under the assumption that the predicted probabilities are reliable. Further, an alternative presentation of the same information on probability paper eases quantitative evaluation and comparison. Both presentations can easily be employed for any method of binning.

Item Type: Article
Official URL:
Additional Information: © 2007 American Meteorological Society
Divisions: Centre for Analysis of Time Series
Subjects: Q Science > Q Science (General)
G Geography. Anthropology. Recreation > GE Environmental Sciences
Date Deposited: 26 Jan 2009 11:45
Last Modified: 10 Jun 2024 03:03

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