Table 5 Descriptive parameters and Fourier frequency results of the ODP Site 846 SST subcomponents isolated from the SST component-1 by singular spectrum analysis. The processing of the subcomponents was done to better separate and estimate the variance fraction of specific frequency bands from still complex data components. The italicized percentage values are the absolute variance of the subcomponents (referred to the total SST variance)
SST comp. rank | SST comp. variance (%) | SST subcomp. rank | SST subcomp. var. (rel.) (%) | SST subcomp. var. (abs) (%) | Frequency (kyr−1) | TISA power (%) | Period (kyr) | Forcing |
|---|---|---|---|---|---|---|---|---|
1 | 87.8 | 1 | 93.0 | 81.7 | 0.0007899 | 98.7 | 1266 | Long-term trend + obliquity modulation cycle |
2 | 3.4 | 3.0 | 0.0006678 | 94.1 | 1497 | Obliquity modulation cycle | ||
0.0024657 | 5.9 | 406 | Eccentricity (long) | |||||
3–10 | 3.5 | 3.1 | 0.0025065 | 8.2 | 399 | |||
0.0034190 | 18.5 | 292 | Earth’s orbit secular frequency | |||||
0.0046896 | 15.3 | 213 | Obliquity modulation cycle | |||||
0.0051832 | 36.9 | 193 | ||||||
0.0079507 | 12.7 | 126 | Eccentricity (short) | |||||
0.0105043 | 8.4 | 95 |