Hi Mazi, I am in agreement with Paul. It is also clear from a quick inspection of your plots that the model bias for each year is identical, so plotting just the 5-year average bias would give you sufficient information. You might want to take a quick glance at IPCC AR5 WG I, Ch. 9 [1] for some good examples.
Thanks, Alex [1] - http://www.climatechange2013.org/images/report/WG1AR5_Chapter09_FINAL.pdf On Wed, Jun 4, 2014 at 4:48 PM, Boustani, Maziyar (398F) < [email protected]> wrote: > Here is the attached [1]. > > [1]: http://oi58.tinypic.com/w7yo2q.jpg > > …………………… > Maziyar Boustani > Software Engineer - GIS Developer > Science Data Understanding Group > Jet Propulsion Laboratory, California Institute of Technology > 4800 Oak Grove Drive, > Pasadena, CA, 91109 > [email protected] > > On Jun 4, 2014, at 3:35 PM, Loikith, Paul C (329C-Affiliate) wrote: > > Hi Mazi, > > This should be one plot total. When you compute a bias, conventionally > it's just one bias for the entire time period so there should be one plot. > You could have multiple plots if you were computing the bias for all 4 > seasons, but for annual there should only be one. > > When you say you temporally regridded to 365 days, what do you mean by > this? The model and obs data are monthly, correct? So shouldn't you just > be computing the mean difference between the obs and the model? > > Please let me know if you need further clarification. > > Thanks, > > Paul > > > > From: <Boustani>, "Maziyar (398F)" <[email protected]> > Date: Wednesday, June 4, 2014 3:12 PM > To: Paul Loikith <[email protected]>, "[email protected]" < > [email protected]> > Cc: "[email protected]" <[email protected]> > Subject: Model Observation Evaluation exmaple > > Hi Paul and Alex, > > I ran a test code to evaluate one model [1] with one observation[2]. You > can find the result as attached. > This has been temporally regrided for 356 day, so we going to have 5 years > of data and that is why we have 5 plots. > Do you guys thinks this is correct to have one plot for each time or it > should be one plot for entire time? > > Metric = Bias > parameter_id = 38 > dataset_id = 10 > min_lat = 0 > max_lat = 20 > min_lon = 0 > max_lon = 20 > start_time = 2000-01-01 00:00:00 > end_time = 2004-12-01 00:00:00 > > > [1] : AFRICA_UQAM-CRCM5_CTL_ERAINT_MM_50km_1989-2008_tas.nc (variable = > TAS) > [2] : CRU3.1 Daily-Mean Temperature (parmeter_id = 38) > > <model_vs_obs_bias.png> > > …………………… > Maziyar Boustani > Software Engineer - GIS Developer > Science Data Understanding Group > Jet Propulsion Laboratory, California Institute of Technology > 4800 Oak Grove Drive, > Pasadena, CA, 91109 > [email protected] > > <model_vs_obs_bias.png> > > > -- Alex Goodman Graduate Research Assistant Department of Atmospheric Science Colorado State University
