Ocean tides, part I: Global ocean tidal equations

Schwiderski, Ernst W.

doi:10.1080/01490418009387997

Cited by 183 publications

(47 citation statements)

References 14 publications

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“…Furthermore, these rates also agree with [Estes, 1980], page 118, and with [Godin, 1972], page 232; they agree approximately with [Schwiderski, 1980], page 172, [Estes, 1980], page 101, and [Lisitzin, 1974], page 12. The rates associated with "D" and "hr" are further presented in Table 2, not necessitate a large number of significant digits for their evaluation.…”

Section: Tidal Argumentssupporting

confidence: 71%

SEASAT Altimetry Adjustment Model Including Tidal and Other Sea Surface Effects,

Blaha¹

1981

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Section: Tidal Argumentssupporting

confidence: 71%

SEASAT Altimetry Adjustment Model Including Tidal and Other Sea Surface Effects,

Blaha¹

1981

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“…According to the classical theory of surface loads, the loading effects of the oceanic tides, including amplitude L and phase , can be simulated by means of global convolution integration of the height of each oceanic tide and Green's functions of surface loads [25][26][27]. In 1980, Schwiderski developed the first available global model of oceanic tides [28]. With the development of satellite altimeters and the long-term accumulation of their data, more and more global models of oceanic tides with higher precision and higher spatial resolution have been developed [29][30][31][32][33].…”

Section: Loading Effects Of Oceanic Tides and Atmospherementioning

confidence: 99%

Characteristics of tidal gravity changes in Lhasa, Tibet, China

Chen

Zhou

et al. 2012

Chin. Sci. Bull.

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Tidal gravity changes arise from the response of the solid Earth to the tidal forces of the Sun, Moon and planets close to the Earth, and are a comprehensive reflection of the structure and distribution of physical properties of the Earth's interior. As a result, observations of tidal gravity changes are the basis of studies on other global and/or regional dynamic processes. The characteristics of tidal gravity changes in the region of the Tibetan Plateau were investigated through continuous gravity measurements recorded with a superconducting gravimeter (SG) installed in Lhasa over a year. Through contrast measurements with a spring gravimeter LaCoste-Romberg ET20 at the same site, the gravity observations in Lhasa were scaled to the international tidal gravity reference in Wuhan. Meanwhile, the scale factor of the SG was determined accurately as -777.358 ± 0.136 nm s −2 V −1 , which is about 2.2% less than the value provided by the manufacturer. The results indicate that the precision of the tidal gravity observations made with the SG in Lhasa was very high. The standard deviation was 0.459 nm s −2 , and the uncertainties of for the four main tidal waves (i.e. O 1 , K 1 , M 2 and S 2 ) were better than 0.006%. In addition, the observations of the diurnal gravity tides had an obvious pattern of nearly diurnal resonance. As a result, it is affirmed that the Lhasa station can provide a local tidal gravity reference for gravity measurements on the Tibetan Plateau and its surrounding regions. The loading effects of oceanic tides on tidal gravity observations in Lhasa are so weak that the resulting perturbations in the gravimetric factors are less than 0.6%. However, the loading effects of the local atmosphere on either the tidal or nontidal gravity observations are significant, although no seasonal variations were found. After removal of the atmospheric effects, the standard deviation of the SG observations in Lhasa decreased obviously from 2.009 to 0.459 nm s −2 . Having removed the loading effects of oceanic tides and local atmosphere, it was found that the tidal gravity observations made with the SG in Lhasa significantly differed by about 1% from those expected theoretically, which may be related to active tectonic movement and the extremely thick crust in the region of the Tibetan Plateau. A more-certain conclusion requires longer accumulation of SG data and further associated theoretical studies.

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“…Indeed, they have been computed on a løxl ø grid from the NSWC tidal elevation charts by Francis and Mazzega [1990], using the convolution integral. Unfortunately, the NSWC model is known to be relatively inaccurate in the Arctic Ocean because of the coarse resolution of its grid (with respect to the small wavelength of the tidal structures) and the lack of observational data, widely used by Schwiderski [1980aSchwiderski [ , 1980b Comparisons of the M2 solutions against the validation data set. The range row shows the standard deviation {Jr of the tidal range.…”

Section: Tidal Forcingmentioning

confidence: 99%

The tides in the Arctic Ocean from a finite element model

Lyard¹

1997

J. Geophys. Res.

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Ocean tides, part I: Global ocean tidal equations

Cited by 183 publications

References 14 publications

SEASAT Altimetry Adjustment Model Including Tidal and Other Sea Surface Effects,

SEASAT Altimetry Adjustment Model Including Tidal and Other Sea Surface Effects,

Characteristics of tidal gravity changes in Lhasa, Tibet, China

The tides in the Arctic Ocean from a finite element model

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