Seasonal shedding of Loop Current eddies The fluctuations and the LC eddy shedding Yu-Lin Eda Chang 1 2012 /03 /14.

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Seasonal shedding of Loop Current eddies The fluctuations and the LC eddy shedding Yu-Lin Eda Chang /03 /14

90LP de-monthly mean90LP 2

Corr (AVISO, SVD EC) 90LP 80-68w, 11-17n 0lag 3

Corr 90LP dT/dy & AVISO SVD dT/dy 80-68w 11-17n dT/dy leads for 1~6 mo Monthly corr. is similar to 90LP but not better 4

Corr 90LP Uw & AVISO SVD EC 80-68w 11-17n Uw leads for 1~6 mo 5

Corr 360LP AVISO SVD EC 80-68w 11-17n 6

90LP 7

Homogeneous correlation (SVDec, Original) 90LP 8

Monthly result (no LP), clear biannual signal 1. Does a positive lag means dT/dy lead? To be consistent w/your older plot (MS fig.3), pls. reverse it to show positve when Uw leads. 2. Pls. redo with “5-year moving” corrletation to get a nice and smooth curve. 3. Pls. replot left figure of this slide#9 (different new *.ps filename) of seasonal_ _eda_fluc_svd.pptx with the 3 rd panel replaced by the monthly-ensemble plot (top panel of right figure of this slide).seasonal_ _eda_fluc_svd.pptx 4. Pls. replot left figure of this slide#9 (different new *.ps filename) of seasonal_ _eda_fluc_svd.pptx with 360d lowpassed dt/dy (thick red?) and 360d lowpassed Uw superimposed also.seasonal_ _eda_fluc_svd.pptx (A) (B) (C) (D) (E) (F) 9 5. Pls. repeat this extended-domain SVD (left figure of this slide#9) for 360d LP also. Repeat also using longer NCEP dataset so we can see the correlation wiith AMO – see #23 of seasonal_ _eda_fluc_svd-lyo.pptx. seasonal_ _eda_fluc_svd-lyo.pptx

Monthly Corr [SVDec(dT/dy), Wind], no LP, Sep2Oct (top), Monthly (low) 10

Monthly Corr [SVDec(-dT/dy), Wind], no LP, Sep2Oct (top), Monthly (low) 11

Monthly Corr [SST, Wind], Sep2Oct (top), Monthly (low) 12

90LP de-monthly mean90LP 13

Corr 360LP AVISO SVD EC 98-65w 5-31n 14

Eddy shedding time lag between EOF(1+2+3, summer & winter intrusion and shedding), EOF( , BC included) and Original AVISO LagShedding + Intrusion (a) Shedding + Intrusion + BC (b) BC accelerates (a-b) AVISO Model