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[ferret_users] eof variance
- To: ferret_users@xxxxxxxx
- Subject: [ferret_users] eof variance
- From: golla nageswararao <ezeenag4u@xxxxxxxxx>
- Date: Thu, 10 Nov 2011 22:06:47 +0530
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Hi all,
I am very new to EOF analysis. I did EOF analysis to weekly SSHA data for 954 weeks. I got some 55000 modes and all. But thing the mode variance is less i.e., 17 and 2nd mode -11,...When I saw time series plot of first mode it is mainly biannual peak. I having doubt that usually for Indian ocean the first mode should be annual with variance more than 50. But astonishingly the result different. How can I decrease the spread of variance over large no. of modes in eof? Since data is huge, I averaged to 1°x1° and subjected to eof analysis, is this will do any thing with the result? I used the command eof_space(ssha,1) is that "1" any culprit? how to choose that variable? Can anybody throw some light on these doubts.
Thanks in advance.
--
With Best regards,
G.NageswaraRao,
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