Wind anomaly, MJO_PC_INDEX and MJO clivar

From: juki juki <juky_emc2_at_nyahnyahspammersnyahnyah>
Date: Sun Jun 03 2012 - 22:52:12 MDT

Dear All;   As my previous email that I would like to plot MJO phase diagram by usinghttp://www.ncl.ucar.edu/Applications/Scripts/mjoclivar_15.ncl. To see the performance of the code, first I plot same data period as in the website. The result is very different from the example (http://www.ncl.ucar.edu/Applications/Images/mjoclivar_15_lg.png) in which the location of all MJO phases for all months is different from that in the website.    Thus, my MJO_PC_INDEX.nc may NOT be correct. As we know the input of mjoclivar_15.ncl is MJO_PC_INDEX.nc which is creted by http://www.ncl.ucar.edu/Applications/Scripts/mjoclivar_14.ncl. Moreover, the input of http://www.ncl.ucar.edu/Applications/Scripts/mjoclivar_14.ncl are: filolr  = "olr.day.anomalies.1980-2012.nc" filu200 = "uwnd.day.200.anomalies.1980-2012.nc" filu850 = "uwnd.day.850.anomalies.1980-2012.nc"   Among these 3 inputs, it seems the wind anomalies are not correct because when I try to calculate Conventional (covariance) univariate EOF analysis for time span 1995-1999 (as in the website) using http://www.ncl.ucar.edu/Applications/Scripts/mjoclivar_12.ncl, the result of OLR is close to the website, but for U850 and U200 is different and significant different for EOF-3 (enclosed). Thus, I think my wind anomalies is not correctly calculated.   I calculated wind anomalies from daily data as the code below (enclosed). I don’t know whether the way to merge the files and then calculate anomaly from those files is correct or not. Probably you have suggestion and help for that.   Thanks for help,   JoeKy

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Received on Mon Jun 4 12:47:50 2012

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