cnrm.nino34.dm: Example Data of Dichotomous Observations and Polychotomous...
In afc: Generalized Discrimination Score

Description Format Details References

Dichotomous observations (obsv) and polychotomous forecasts with four categories (fcst) of the Nino-3.4 index for January 1961-2000. The forecast data stem from model runs initialized using data for the preceding August 1960-1999. Definition of an "event" in the observations: obsv >= 27 C. Definition of the four forecast "categories": (1) fcst < 26 C; (2) fcst in [26 C,27 C[; (3) fcst in [27 C,28 C[; (4) fcst >= 28 C.

The format is:
List of 3
\$ years: int [1:40] 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 ...
\$ obsv : num [1:40] 0 0 0 1 0 1 0 0 1 1 ...
\$ fcst : num [1:40] 2 2 2 3 1 4 2 2 3 3 ...

The forecast data are from the coupled ocean-atmosphere model of the Centre National de Recherches Meteorologiques (CNRM) of Meteo France and were generated as part of the "Development of a European Multimodel Ensemble System for Seasonal to Interannual Prediction (DEMETER)" project (Palmer et al. 2004). Note that also the examples presented in the 2AFC paper by Mason and Weigel (2009) are based on these data.

Palmer, T.N. and Coauthors, 2004: Development of a European ensemble system for seasonal to inter-annual prediction (DEMETER). Bull. Amer. Meteor. Soc., 85, 853-872.
Mason, S.J. and A.P. Weigel, 2009: A generic forecast verification framework for administrative purposes. Mon. Wea. Rev., 137, 331-349

afc documentation built on May 1, 2019, 9:46 p.m.