The influence of the lunar nodal cycle on Arctic climate
Abstract The Arctic Ocean is a substantial energy sink for the northern hemisphere. Fluctuations in its energy budget will have a major influence on the Arctic climate. The paper presents an analysis of the time-series for the polar position, the extent of Arctic ice, sea level at Hammerfest, Kola s...
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croxfordunivpr:10.1016/j.icesjms.2005.07.015 2023-12-31T10:02:34+01:00 The influence of the lunar nodal cycle on Arctic climate Yndestad, Harald 2006 http://dx.doi.org/10.1016/j.icesjms.2005.07.015 http://academic.oup.com/icesjms/article-pdf/63/3/401/29124640/63-3-401.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 63, issue 3, page 401-420 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2006 croxfordunivpr https://doi.org/10.1016/j.icesjms.2005.07.015 2023-12-06T09:00:52Z Abstract The Arctic Ocean is a substantial energy sink for the northern hemisphere. Fluctuations in its energy budget will have a major influence on the Arctic climate. The paper presents an analysis of the time-series for the polar position, the extent of Arctic ice, sea level at Hammerfest, Kola section sea temperature, Røst winter air temperature, and the NAO winter index as a way to identify a source of dominant cycles. The investigation uses wavelet transformation to identify the period and the phase in these Arctic time-series. System dynamics are identified by studying the phase relationship between the dominant cycles in all time-series. A harmonic spectrum from the 18.6-year lunar nodal cycle in the Arctic time-series has been identified. The cycles in this harmonic spectrum have a stationary period, but not stationary amplitude and phase. A sub-harmonic cycle of about 74 years may introduce a phase reversal of the 18.6-year cycle. The signal-to-noise ratio between the lunar nodal spectrum and other sources changes from 1.6 to 3.2. A lunar nodal cycle in all time-series indicates that there is a forced Arctic oscillating system controlled by the pull of gravity from the moon, a system that influences long-term fluctuations in the extent of Arctic ice. The phase relation between the identified cycles indicates a possible chain of events from lunar nodal gravity cycles, to long-term tides, polar motions, Arctic ice extent, the NAO winter index, weather, and climate. Article in Journal/Newspaper Arctic Arctic Ocean Hammerfest Oxford University Press (via Crossref) ICES Journal of Marine Science 63 3 401 420 |
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Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Yndestad, Harald The influence of the lunar nodal cycle on Arctic climate |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract The Arctic Ocean is a substantial energy sink for the northern hemisphere. Fluctuations in its energy budget will have a major influence on the Arctic climate. The paper presents an analysis of the time-series for the polar position, the extent of Arctic ice, sea level at Hammerfest, Kola section sea temperature, Røst winter air temperature, and the NAO winter index as a way to identify a source of dominant cycles. The investigation uses wavelet transformation to identify the period and the phase in these Arctic time-series. System dynamics are identified by studying the phase relationship between the dominant cycles in all time-series. A harmonic spectrum from the 18.6-year lunar nodal cycle in the Arctic time-series has been identified. The cycles in this harmonic spectrum have a stationary period, but not stationary amplitude and phase. A sub-harmonic cycle of about 74 years may introduce a phase reversal of the 18.6-year cycle. The signal-to-noise ratio between the lunar nodal spectrum and other sources changes from 1.6 to 3.2. A lunar nodal cycle in all time-series indicates that there is a forced Arctic oscillating system controlled by the pull of gravity from the moon, a system that influences long-term fluctuations in the extent of Arctic ice. The phase relation between the identified cycles indicates a possible chain of events from lunar nodal gravity cycles, to long-term tides, polar motions, Arctic ice extent, the NAO winter index, weather, and climate. |
format |
Article in Journal/Newspaper |
author |
Yndestad, Harald |
author_facet |
Yndestad, Harald |
author_sort |
Yndestad, Harald |
title |
The influence of the lunar nodal cycle on Arctic climate |
title_short |
The influence of the lunar nodal cycle on Arctic climate |
title_full |
The influence of the lunar nodal cycle on Arctic climate |
title_fullStr |
The influence of the lunar nodal cycle on Arctic climate |
title_full_unstemmed |
The influence of the lunar nodal cycle on Arctic climate |
title_sort |
influence of the lunar nodal cycle on arctic climate |
publisher |
Oxford University Press (OUP) |
publishDate |
2006 |
url |
http://dx.doi.org/10.1016/j.icesjms.2005.07.015 http://academic.oup.com/icesjms/article-pdf/63/3/401/29124640/63-3-401.pdf |
genre |
Arctic Arctic Ocean Hammerfest |
genre_facet |
Arctic Arctic Ocean Hammerfest |
op_source |
ICES Journal of Marine Science volume 63, issue 3, page 401-420 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1016/j.icesjms.2005.07.015 |
container_title |
ICES Journal of Marine Science |
container_volume |
63 |
container_issue |
3 |
container_start_page |
401 |
op_container_end_page |
420 |
_version_ |
1786812092127379456 |