Re: [CF-metadata] CF standard_name irradiation ?

2011-02-18 Thread Lowry, Roy K.
Hi Martin, There are two Standard Names 'downwelling_shortwave_flux_in_air' and 'downwelling_longwave_flux_in_air'. Do either of these fit your data. I have associated the former with downwelling irradiance data from PAR cosine-collector light meters. Cheers, Roy. -Original

Re: [CF-metadata] CF standard_name irradiation ?

2011-02-18 Thread Nan Galbraith
Hello - It would be useful to know what type of measurement you're working with. Is it an observed variable? What kind instrument made the measurement, and at what position - i.e is it on a surface buoy? We use surface_downwelling_shortwave_flux_in_air for swr measured by an Eppley PSP

Re: [CF-metadata] CF standard_name irradiation ?

2011-02-18 Thread Schultz, Martin
Hi Roy, thanks - yes: I think that would do. I am not an expert in this field and don't know if the light meter spectral response is close enough to what models generally consider shortwave flux, but this might be a rather fine point. In any case it would be good if a search for

[CF-metadata] ... wind speed

2011-02-18 Thread Schultz, Martin
Hi again, more on the CASTNET data. They provide 15,WINDSPEED,m/sec,Vector wind speed; m/sec.,NUMBER,16,4, and 23,WINDSPEED_SCALAR,m/sec,Scalar wind speed; m/sec.,NUMBER,16,4, The first appears to be a vector average = sqrt( mean(u)**2 + mean(v)**2 ) the second is = mean( sqrt(u**2 +

Re: [CF-metadata] handling time in a CF compliant fashion

2011-02-18 Thread Dave Allured
Janine, The data model envisioned by CF requires that the time coordinate variable be fully enumerated. In other words, your scenario requires a time dimension at the highest rate, including a time coordinate value for every time step. time(:) = 0.00, 0.04, 0.08 seconds, etc. I am not