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Solar Cycle Signal in Earth Rotation: Nonstationary Behavior
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| Zeitschriftentitel: | Science |
|---|---|
| Personen und Körperschaften: | |
| In: | Science, 211, 1981, 4480, S. 386-389 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Association for the Advancement of Science (AAAS)
|
| Schlagwörter: |
| author_facet |
Currie, Robert G. Currie, Robert G. |
|---|---|
| author |
Currie, Robert G. |
| spellingShingle |
Currie, Robert G. Science Solar Cycle Signal in Earth Rotation: Nonstationary Behavior Multidisciplinary |
| author_sort |
currie, robert g. |
| spelling |
Currie, Robert G. 0036-8075 1095-9203 American Association for the Advancement of Science (AAAS) Multidisciplinary http://dx.doi.org/10.1126/science.211.4480.386 <jats:p> Following the discovery of the 11-year solar cycle signal in earth rotation, linear techniques were employed to investigate the amplitude and phase of the difference between ephemeris time and universal time (Δ <jats:italic>T</jats:italic> ) as a function of time. The amplitude is nonstationary. This difference was related to Δ(LOD), the difference between the length of day and its nominal value. The 11-year term in Δ(LOD) was 0.8 millisecond at the close of the 18th century and decreased below noise level from 1840 to 1860. From 1875 to 1925, Δ(LOD) was about 0.16 millisecond, and it decreased to about 0.08 millisecond by the 1950's. Except for anomalous behavior from 1797 to 1838, Δ <jats:italic>T</jats:italic> lags sunspot numbers by 3.0 ± 0.4 years. Since Δ <jats:italic>T</jats:italic> lags Δ(LOD) by 2.7 years, the result is that Δ(LOD) is approximately in phase with sunspot numbers. </jats:p> Solar Cycle Signal in Earth Rotation: Nonstationary Behavior Science |
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American Association for the Advancement of Science (AAAS), 1981 |
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American Association for the Advancement of Science (AAAS), 1981 |
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| title |
Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_unstemmed |
Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_full |
Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_fullStr |
Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_full_unstemmed |
Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_short |
Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_sort |
solar cycle signal in earth rotation: nonstationary behavior |
| topic |
Multidisciplinary |
| url |
http://dx.doi.org/10.1126/science.211.4480.386 |
| publishDate |
1981 |
| physical |
386-389 |
| description |
<jats:p>
Following the discovery of the 11-year solar cycle signal in earth rotation, linear techniques were employed to investigate the amplitude and phase of the difference between ephemeris time and universal time (Δ
<jats:italic>T</jats:italic>
) as a function of time. The amplitude is nonstationary. This difference was related to Δ(LOD), the difference between the length of day and its nominal value. The 11-year term in Δ(LOD) was 0.8 millisecond at the close of the 18th century and decreased below noise level from 1840 to 1860. From 1875 to 1925, Δ(LOD) was about 0.16 millisecond, and it decreased to about 0.08 millisecond by the 1950's. Except for anomalous behavior from 1797 to 1838, Δ
<jats:italic>T</jats:italic>
lags sunspot numbers by 3.0 ± 0.4 years. Since Δ
<jats:italic>T</jats:italic>
lags Δ(LOD) by 2.7 years, the result is that Δ(LOD) is approximately in phase with sunspot numbers.
</jats:p> |
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| author | Currie, Robert G. |
| author_facet | Currie, Robert G., Currie, Robert G. |
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| description | <jats:p> Following the discovery of the 11-year solar cycle signal in earth rotation, linear techniques were employed to investigate the amplitude and phase of the difference between ephemeris time and universal time (Δ <jats:italic>T</jats:italic> ) as a function of time. The amplitude is nonstationary. This difference was related to Δ(LOD), the difference between the length of day and its nominal value. The 11-year term in Δ(LOD) was 0.8 millisecond at the close of the 18th century and decreased below noise level from 1840 to 1860. From 1875 to 1925, Δ(LOD) was about 0.16 millisecond, and it decreased to about 0.08 millisecond by the 1950's. Except for anomalous behavior from 1797 to 1838, Δ <jats:italic>T</jats:italic> lags sunspot numbers by 3.0 ± 0.4 years. Since Δ <jats:italic>T</jats:italic> lags Δ(LOD) by 2.7 years, the result is that Δ(LOD) is approximately in phase with sunspot numbers. </jats:p> |
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| imprint | American Association for the Advancement of Science (AAAS), 1981 |
| imprint_str_mv | American Association for the Advancement of Science (AAAS), 1981 |
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| language | English |
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| physical | 386-389 |
| publishDate | 1981 |
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| publisher | American Association for the Advancement of Science (AAAS) |
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| source_id | 49 |
| spelling | Currie, Robert G. 0036-8075 1095-9203 American Association for the Advancement of Science (AAAS) Multidisciplinary http://dx.doi.org/10.1126/science.211.4480.386 <jats:p> Following the discovery of the 11-year solar cycle signal in earth rotation, linear techniques were employed to investigate the amplitude and phase of the difference between ephemeris time and universal time (Δ <jats:italic>T</jats:italic> ) as a function of time. The amplitude is nonstationary. This difference was related to Δ(LOD), the difference between the length of day and its nominal value. The 11-year term in Δ(LOD) was 0.8 millisecond at the close of the 18th century and decreased below noise level from 1840 to 1860. From 1875 to 1925, Δ(LOD) was about 0.16 millisecond, and it decreased to about 0.08 millisecond by the 1950's. Except for anomalous behavior from 1797 to 1838, Δ <jats:italic>T</jats:italic> lags sunspot numbers by 3.0 ± 0.4 years. Since Δ <jats:italic>T</jats:italic> lags Δ(LOD) by 2.7 years, the result is that Δ(LOD) is approximately in phase with sunspot numbers. </jats:p> Solar Cycle Signal in Earth Rotation: Nonstationary Behavior Science |
| spellingShingle | Currie, Robert G., Science, Solar Cycle Signal in Earth Rotation: Nonstationary Behavior, Multidisciplinary |
| title | Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_full | Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_fullStr | Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_full_unstemmed | Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_short | Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| title_sort | solar cycle signal in earth rotation: nonstationary behavior |
| title_unstemmed | Solar Cycle Signal in Earth Rotation: Nonstationary Behavior |
| topic | Multidisciplinary |
| url | http://dx.doi.org/10.1126/science.211.4480.386 |