AMO #9
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Calibrated from Forcing of Darwin and PDO Note the dLOD cal
without high freq mod, cc=0.72
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Revisit
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What's interesting is to take that AMO forcing and apply to NINO34
Add high frequency LTE to get CC on 1935-2022 above 0.9
Phase reversals start to appear in the unfit region around the year 1900. Bottom (negative) part of the forcing |
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Another cycle
fixed sharply to dLOD
enso_opt.exe.resp.amo-1860-1905-exclude-pt865
Should next try IOD, also adding Hale cycle? |
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From Darwin
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Single Year model
With fine detail.
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Lin, Jialin, and Taotao Qian. "The Atlantic multi-decadal oscillation." Atmosphere-Ocean 60.3-4 (2022): 307-337. See Discussion #16 for further cross-validation of AMO |
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dLOD annualSymmetric +/+ semi-annual impulses weighted by dLOD
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DarwinJumped to Darwin using the same *.par file as above
The previous Darwin used the 27x harmonic (13-day), this next uses 26x same as AMO (14-day)
2 examples ../io/restore amo_with_all_LOD-26-incl1905-2015 ..\io\restore darwin_with_all_LOD-26-incl1880-2015 Generating a Darwin fit from AMO takes a minute or two, and the forcing barely budges |
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Check IOD West
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Annual1855-1870 cc=0.196746439
1855-1870 cc=0.272347549
CC_START 1870.0 Regions CC
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Starter
CC_START 1875.0
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Flux NN, with integral forcing |
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from Darwin1st mislabelled Status: 6 2 0.60387 0.41522 # 200
CC 0.6038708908 0.4153850947 6 1 Status: 7 2 0.72334 0.24359 # 2440
CC 0.7233862865 0.2433440028 7 1 MONTH = -1Status: 5 2 0.70641 0.34677 # 620
CC 0.7064076259 0.3467718863 5 1 Status: 4 2 0.74037 0.36129 # 300
CC 0.7406178610 0.4106178958 3 1 Status: 4 49 0.78501 0.40576 # 1080
CC 0.7850270545 0.4058023854 4 1 |
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Cross-Val 1950-1960
0.99999967512:dLOD:CC 0.4789236440 0.7537852404 8 1 |
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Status: 2 2 0.80336 0.39927 # 2255
CC 0.4000640385 0.8033577177 2 1 Status: 8 2 0.80893 0.42074 # 170
CC 0.4206410692 0.8089475481 8 1 |
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This uses a semi-annual, same sign Status: 1 2 0.89757 0.24939 # 11510
CC 0.8975705112 0.2493877279 1 1 |
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../restore amo-asym_nov15_perfectLOD_relax-hi-pt25a-pdo2-relax1-amo NINO34 |
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1882-2020

Can see that it should align prior to 1882, and it quickly does.
remove the trend and it approaches the asymptotic level more closely
Go back to the first, and remove the trend
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