...
- centre : the 4-letter WMO identifier of the originating centre (ammc, cwao, ecmf, edzw, egrr, kwbc, lfpw, rjtd, rksl, rums etc);
- model : free model identifier assigned by the centre (to distinguish between potentially different models provided by the centre);
- par : denotes the parameter and level of the verified field and can have the following forms:
- for upper-air fields (eg. z500hPa, t850hPa, w250hPa) it has the form PL where
- P is the parameter (z for geopotential height, t for temperature, w for wind, r for relative humidity)
- L is the pressure of the isobaric level in hPa and the string hPa
- for the mean-sea-level pressure it is mslp;
- for upper-air fields (eg. z500hPa, t850hPa, w250hPa) it has the form PL where
- sc : is the score abbreviation:
- rmse for root-mean-square error
- me for mean error (bias)
- mae for mean absolute error
- s1 (S ONE) for S1 skill score
- ccaf for forecast anomaly correlation
- cctf for forecast tendency correlation
- rmsaf for root-mean-square of forecast anomaly
- rmsav for root-mean-square of verifying analysis anomaly
- seeps for SEEPS
- sd for standard deviation of field
- dom : is the domain name, one of the following: nhem shem tropics eurnafr namer asia austnz npol spol;
- ref : indicated whether the scores have been computed against the analysis (ref=an) or observations (ref=ob);
- refs : reference subtype (reserved, currently not in use);
- d : day of the forecast validity in the form YYYYMMDD or month of the mean in the form YYYYMM;
- t : time of the forecast validity in hours of UTC;
- s : forecast step in hours;
- n : number of observations used to compute the given score (if applicable); for monthly means this should be the average number of observation per observation time;
- v : score value; it can be of any usual numeric format (3, 3., 3.0, 0.3E+1,...) but without any leading zeroes (003); the number of significant digits must be sufficient to ensure description of natural score variability between forecast steps, seasons or different centres; if the value is not available the record either should not be printed at all or the value should be set to NIL (v=nil); every record must contain the key v (value of key v is not inheritable from previous record).
...