Esben Almqvist wrote: > Hi Miguel! > > Thank you for your answer. This is what I tested yesterday. First my time > series had errors in the observation data from 3.00 to 6.00 and the forecast > was to be made for 00.00. I looked into what data was used in initial.f and I > saw that the data was truncated so it started at 7.00 and all the previous > data was removed. When I introduced an error at 19.00-21.00 the data wasn't > truncated. According to your information, the data was replaced by the > forecast data. > Have I understood this correctly or did I look at the wrong data?
You understood correctly. Where there any observation data before 3:00 in your first test? > > If the surface temperature, which is not present in the forecast file, is > missing in the > coupling phase, is the value first removed and then interpolated? Yes. The subsurface temperature is a special case. The last valid temperature is used to replace the invalid temperature (if temp[i] is invalid and temp[i-1] is valid, then temp[i] =temp[i-1]) > Is there a limit for the amount of data that can be missing? >From the moment there is one valid observation at the start time and that the >atmospheric forecast covers the beginning and the end of the roadcast period, >it is fine. > I saw that the model complained when there was more than 240 minutes of > missing data. You mean a warning? See: http://documentation.wikia.com/wiki/Input_observation_QA/QC_%28METRo%29#Time_constraint > Before the coupling phase, when the surface temperature is used for makitp > and initial, are the missing data replaced by interpolated values or is the > data truncated? See my answer above. > Thanks again! My pleasure! Miguel -- Miguel Tremblay Physicien - Physicist Centre météorologique canadien - Canadian meteorological centre (CMC) Environnement Canada - Environment Canada http://www.ec.gc.ca/ 2121 Trans-Canada N. Suite 228 Téléphone/Phone: 514-421-4729 Dorval, Québec Fax: 514-421-4679 CANADA H9P 1J3 courriel/email: [EMAIL PROTECTED] _______________________________________________ METRo-developers mailing list [email protected] https://mail.gna.org/listinfo/metro-developers
