"This result supports the hypothesis that the 18.6-year tidal cycle influences long-term variability in climate; thus, knowledge of this cycle could contribute towards improving decadal predictions of climate." [which IPCC climate models do not incorporate]The approximately 60-year long Pacific Decadal Oscillation [PDO] in-turn profoundly affects global climate and interacts with other ocean and atmospheric oscillations. A very simple climate model based solely upon the sum of the sunspot integral, Pacific Decadal Oscillation [PDO], and Atlantic Multidecadal Oscillation [AMO] explains 96% of climate change over the 20th century:
The paper joins others finding a significant influence of lunar gravitational (and to a lesser extent solar gravitational) effects upon long-term ocean oscillations, and that lunar-tidal cycles could explain a significant portion of the 20th century global temperature variation.
|At a major lunar standstill, which takes place every 18.6 years, the range of the declination of the Moon reaches a maximum|
The IPCC climate models do not incorporate any such lunar tidal effects or solar amplification effects, and cannot even simulate the major ocean oscillations [or clouds, convection, gravity waves, etc. etc]. Nonetheless, the IPCC conveniently rules out such natural influences on climate by hiding behind unskillful and wholly inadequate climate models which are incapable of simulating true natural variability.
Role of the oceanic bridge in linking the 18.6-year modulation of tidal mixing and long-term SST change in the North Pacific
S. Osafune, S. Masuda and N. Sugiura
The impact of the 18.6-year modulation of tidal mixing on sea surface temperature (SST) in the North Pacific is investigated in a comparative study using an ocean data synthesis system. We show that remote impact through a slow ocean response can make a significant contribution to the observed bidecadal variation in wintertime SST near the center of action of the Pacific Decadal Oscillation in the eastern Pacific. A comparative data synthesis experiment showed that the modified SST variation is amplified by bidecadal variation in the westerly wind. This relationship between SST and wind variations is consistent with an observed air–sea coupled mode in the extratropics, which suggests that a midlatitude air–sea interaction plays an important role in enhancing the climate signal of the 18.6-year modulation. This result supports the hypothesis that the 18.6-year tidal cycle influences long-term variability in climate; thus, knowledge of this cycle could contribute towards improving decadal predictions of climate.
New paper finds lunar-tidal cycles influence climate
New paper finds lunar-tidal cycles explain much of the 20th century global temperature change
Ian Wilson: 18.6 year lunar cycle in high rainfall years in Victoria
Why Weather has a 60 year Lunar beat