The moon and Earths climate

A controversial topic.. Does the moon affect the earths climate. Some believers may be called Lunatics
or NOT?
Going to collect information on this topic from a range of sources as l come across them

Please click on the title to load the comments below which contain any information l have collected
Feel free to comment.

earth to  moon distance


18 comments on “The moon and Earths climate

  1. Thanks to
    for the link

    Response of the Southern Annular Mode to tidal forcing and the bi-decadal rainfall cycle over subtropical southern Africa

    Journal of Geophysical Research, Atmospheres by Johan Malherbe, F.A. Engelbrecht, W.A. Landman /;jsessionid=B1467DE7ABA52751A2569FA6B51CA8BE.f01t02


    Synoptic weather data and rainfall records are used to support previous suggestions that the decadal-scale cycle in certain climate records may be attributed to the modulation in tidal forcing related to the 18.6 year lunar nodal cycle. The Southern Annular Mode (SAM) is shown to be sensitive to tidal forcing on a daily time scale. It is subsequently shown that the late-summer SAM can be predicted by consideration of tidal potential. The seasonal response in the SAM is also reflected in sea surface temperatures. Observed behavior of the atmosphere suggests that changing tidal potential over the lower versus higher latitudinal regions plays a role. The atmospheric response as reflected in the changing SAM affects the daily rainfall variation in certain subtropical parts of southern Africa where rainfall correlates positively with the SAM. The daily rainfall response subsequently accumulates in a bi-decadal rainfall cycle, known over southern Africa as the Dyer-Tyson cycle.

  2. Thanks to’ chiefio’ ‘for posting

    The 1,800-year oceanic tidal cycle: A possible cause of rapid climate change

    Charles D. Keeling* and
    Timothy P. Whorf

    Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0244

    Contributed by Charles D. Keeling


    Variations in solar irradiance are widely believed to explain climatic change on 20,000- to 100,000-year time-scales in accordance with the Milankovitch theory of the ice ages, but there is no conclusive evidence that variable irradiance can be the cause of abrupt fluctuations in climate on time-scales as short as 1,000 years. We propose that such abrupt millennial changes, seen in ice and sedimentary core records, were produced in part by well characterized, almost periodic variations in the strength of the global oceanic tide-raising forces caused by resonances in the periodic motions of the earth and moon. A well defined 1,800-year tidal cycle is associated with gradually shifting lunar declination from one episode of maximum tidal forcing on the centennial time-scale to the next. An amplitude modulation of this cycle occurs with an average period of about 5,000 years, associated with gradually shifting separation-intervals between perihelion and syzygy at maxima of the 1,800-year cycle. We propose that strong tidal forcing causes cooling at the sea surface by increasing vertical mixing in the oceans. On the millennial time-scale, this tidal hypothesis is supported by findings, from sedimentary records of ice-rafting debris, that ocean waters cooled close to the times predicted for strong tidal forcing.

  3. Ian Wilson has some fantastic information on the lunar cycles and connections to longer cycles like Bond Events .

    LUNAR VS D/O events by ian wilson

    This is in extremely good agreement with the measured spacing of the D-O climate warming events of 1470 years!

    Hence, if we look for cycles in the strength of the lunar tides that are synchronized with the seasons, rather than cycles in the absolute strength of lunar tides, we find that there is a natural 1470 year tidal cycle.

  4. Research article here with NO PAYWALL title simply

    The moon and El Nino
    Randall S. Cerveny and
    John A. Shaffer

    Article first published online: 7 DEC 2012

    Regional climates around the world display cycles corresponding to the 18.61-year maximum lunar declination (MLD) periodicity. We suggest that these cycles are created by a relationship between MLD and El Niño / Southern Oscillation (ENSO). Both equatorial Pacific sea-surface temperature and South Pacific atmospheric pressure significantly correlate with maximum lunar declination. Low MLDs are associated with warmer equatorial Pacific sea-surface temperatures and negative values of the Southern Oscillation Index. A lunar-influenced change in the Pacific gyre circulation presents a viable physical mechanism for explaining these relationships. We suggest that the gyre is enhanced by tidal forces under high MLDs, inducing cold-water advection into the equatorial region but is restricted by the weak tidal forcing of low MLDs thereby favoring El Niño episodes. An astronomical model utilizing this relationship produces a forecast of increased non-El Niño (either La Niña or neutral) activity for the early part of this decade.

  5. Tallbloke has an interesting article on the link between

    Rainfall anomalies in VICTORIA AUSTRALIA (which is in the SH mid latitudes) and Lunar Draconic peak tide strength

    (I have added the black lines for definition)
    lunar peak strength tidal vs Victorian rainfall in Australia

    Identified is some curious anomalies with the peak strength of the draconic ( moon) tides (midpoint 2) and a strong rainfall anomaly on 4 of the 5 Draconic tide peaks between 1917- 2000 time series data

    other related research by Ian Wilson

    some titles include
    Ian Wilson: Long-Term Lunar Atmospheric Tides in the Southern Hemisphere In “atmosphere”

    Ian Wilson: Linking the Orbital Configuration of Jupiter, Venus and the Earth to the Terrestrial Lunar TidesIn “Cycles”

    Ian Wilson:The moon is linked to long term Atlantic changes. In “climate”

  6. Continuing on from above
    some discussion at Tallbloke

    Doug said.
    ” The 18.6 year cycle looks to be a subcycle of a larger cycle. 60 year?

    The clockwork universe reveals itself one wheel at a time.”.
    Yes Doug. Precision!!

    14 quarters of a lunar declination cycle = one AMO

    14 * 4.75 = 67 yr AMO/global temp cycle

    If you divide the Lunar declination cycle into its 4 quarters ( Max, mid point, Min , mid point)

    Each quarter is 18.9 / 4 = 4.75 yr

    You will find there are 7 lunar declination quarters = one phase of the global temp cycle/ AMO

    7 * 4.75 = 33.25 yr phase of the AMO/global temp cycle
    14 * 4.75 = 67 yr AMO/global temp cycle

    7 quarters of the lunar declination cycle also equal 3 schwabe cycles( schwabe triplet)

    The lunar declination quarters at 7 increments AND the schwabe triplets are linked to inflection points in global temperature

    Note the sequence in the time series at the inflection points is not as you might expect ( they are not in ‘order due to the 7 quarter increments)

    midpoint 1
    midpoint 2


    Hockeyschtick givesa few more links to lunar / earth climate research

    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.

    Picture from wikopedia : /Lunar_standstill


    Discussed on Tallbloke here

    One of Paul Vaughans contributions
    showing IN sync out of synch relationship of SST and Lunar cycle

    My comments on tallbloke re: Paul Vaughans graph above
    Nice graph Paul , showing the in synch /out of synch relationship of SST and Lunar cycle( first post on this post)

    I was particularly interested that the wave forms were in synch from 1935 -1950

    Before 1935 the SST waveform was off set from the lunar cycle to the left and after 1950 was of set to the right.

    I have an interesting graph here published by ‘surly bond’ showing a shift in rainfall /inflection point in mid-
    latitude Australian east coast rainfall. ( bottom graph)This pattern coincides with your graph quite well

    One might infer that the east coast central table lands ( eastern australia)in OZ gets more rainfall when the lunar cycle waveform precedes the SST waveform ( post 1955) and the opposite when the lunar cycle rain waveform follows the SST waveform

    How to explain the mechanism l have no idea..except maybe

    Quite possible.. the Tasman mid latitude High pressure cell shifts further east or west producing shifts in coastal troughing pattern or more or less onshore rain from the position of the high in the Tasman sea.

    I think you have shown this already with your animations of the mid latitude high pressure belt cycling in position ?

  8. Ninderthana says:

    March 6, 2012 at 8:05 am

    The dates of all but two of the major floods in the Brisbane River Valley since 1825
    have been separated from earlier floods by 18.6 years = Draconic Tidal Cycle.

    ______________________________Date of Flood____Brisbane____Ipswich
    1825____________= 1825.0__________1825________from historical record
    ________________= 1843.6 – 3 years__{1841
    1825 + (1 x 18.6)__= 1843.6__________{1844________Maj_________?
    1825 + (2 x 18.6)__= 1862.2__________1863_________Maj_________Maj
    1825 + (4 x 18.6)__= 1899.4__________1898_________Maj_________Maj
    1825 + (7 x 18.6)__= 1955.2__________1955__________?__________Maj
    ________________= 1973.8 – 3 years__{1971
    1825 + (8 x 18.6)__= 1973.8__________{1974________Maj_________Maj
    1825 + (9 x 18.6)__= 1992.4__________1991__________?__________Maj
    1825 + (10 x 18.6)_= 2011.0__________2011_________Maj_________Maj
    1856.2____________= 1856.2________1857
    1856.2 + (2 x 18.6)__= 1893.4________1893
    1856.2 + (4 x 18.6)__= 1930.6________1931
    _________________= 1893.4 – 3 years
    1889.8___________= 1889.8________1889 & 1890
    1889.8 + (1 x 18.6)__= 1908.4_______1908
    _________________= 1930.6 – 3 years
    1889.8 + (2 x 18.6)__= 1927.0_______1927

  9. IAN WILSON has new research on the link between the moon / earth relationship and the onset of El Nino

    PART 1
    (13.7 day) peaks in
    the lunar
    line-of-apse with respect to the stars, once every 8.85
    (preview extracts nil.. as Ian has copyright for all; text and images)

    PART 2
    the 31/62 year
    Perigee-Syzygy Cycle.

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