The geographical distribution of the solar semidiurnal surface pressure oscillation

Hamilton, Kevin

doi:10.1029/jc085ic04p01945

Cited by 19 publications

(16 citation statements)

References 17 publications

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“…The most extensive observations of the solar tide have been made using long time series of barometric measurements. The diurnal surface pressure oscillation S•(p) and the semidiurnal surface pressure oscillation S2(p) have been determined at several hundred stations throughout the world [-Haurwitz, 1956[-Haurwitz, , 1965Haurwitz and Cowley, 1973;Hamilton, 1980]. Such observations at an individual station can be characterized by an amplitude and a local time phase.…”

Section: Observationsmentioning

confidence: 99%

Simulation of solar tides in the Canadian Climate Centre general circulation model

Zwiers¹,

Hamilton²

1986

J. Geophys. Res.

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Two 60‐day simulations of the global atmospheric circulation produced by the Canadian Climate Centre general circulation model were analyzed to determine the solar diurnal and semidiurnal variations in the wind, pressure, and precipitation fields. In these simulations the radiative transfer calculations were performed every hour in order to resolve adequately the diurnal cycle. One simulation was for boreal summer, and the other was for winter conditions. The diurnal and semidiurnal surface pressure variations in the model were found to be quite realistic, although somewhat smaller than actually observed. Even some fairly subtle details of the geographical and seasonal variability of the solar tidal pressure oscillation were well simulated. The daily cycle of the wind in the model also appears to be reasonably consistent with the limited observations available. By contrast, the diurnal and semidiurnal variations of precipitation were not successfully simulated by the model. Linear tidal theory calculations were performed with thermal forcings, vertical resolution, and boundary conditions similar to those in the full general circulation model. These calculations allowed an evaluation of the effects of the different numerical approximations in the general circulation model on the simulated tide. One striking result of these linear computations was the indication of a tendency for the effects of the “rigid‐lid” upper boundary condition to compensate for the omission of the thermal tidal forcing above the top level of the model.

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Section: Observationsmentioning

confidence: 99%

Simulation of solar tides in the Canadian Climate Centre general circulation model

Zwiers¹,

Hamilton²

1986

J. Geophys. Res.

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“…The periodic incoming solar heating in the atmosphere generates global tidal waves which can be revealed from variables such as pressure, wind, temperature, radiation fluxes, and even precipitation. The tidal waves evolve with periods of 24 and 12 h, commonly referred to as the diurnal and semi‐diurnal oscillations respectively (Wallace and Hartranft, 1969; Haurwitz and Cowley, 1973; Hamilton, 1980; Hsu and Hoskins, 1989; Deser and Smith, 1998; Dai and Wang, 1999). On a regional scale, the pressure variations are geographically dependent and subject to the modulation of mountain–valley and land–sea differential heating, as well as latent heating in moist convection (Hamilton, 1981; Krishnamurti and Kishtawal, 2000; Ciesielski and Johnson, 2008).…”

Section: Introductionmentioning

confidence: 99%

A planetary‐scale land–sea breeze circulation in East Asia and the western North Pacific

Huang

Chan

Wang

2010

Quart J Royal Meteoro Soc

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The diurnal wind variation over the East Asian continent is commonly considered to be a combination of a land-sea breeze near the coast and a mountain-valley breeze along the slopes of the Tibetan Plateau. The local land-sea breeze along the coastline typically spans <100 km into the ocean. However, a detailed examination of the global reanalysis data suggests that this local land-sea breeze circulation apparently couples with the global-scale diurnal atmospheric pressure tide to produce a planetary-scale land-sea breeze with a spatial scale of ∼1000 km over the western North Pacific. Computations of the momentum budget and equivalent potential temperatures indicate that the atmospheric diurnal tidal wave contributes the most to this circulation feature. A diagnosis of the water vapour budget further suggests that the convergence of water vapour flux, which is related to the convergence of low-level wind induced by the seasonal change of diurnal tidal wave, leads to different times of occurrence of maximum diurnal rainfall over East Asia between summer and winter.

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“…These are tide estimates based on analyses of long time series of barometric pressure measurements from 428 widely distributed meteorological stations. This set of station estimates is a merger of three previous compilations by Haurwitz (1956), Hamilton (1980), and Ray (1998). Considerable care was taken in deriving each of the tidal estimates, and they likely represent the best "ground truth" knowledge we have of the S 2 tide.…”

Section: Annual Mean S 2 Tidementioning

confidence: 99%

Barometric tides from ECMWF operational analyses

2003

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Abstract. The solar diurnal and semidiurnal tidal oscillations in surface pressure are extracted from the operational analysis product of the European Centre for Medium Range Weather Forecasting (ECMWF). For the semidiurnal tide this involves a special temporal interpolation, following Van den Dool et al. (1997). The resulting tides are compared with a "ground truth" tide data set, a compilation of welldetermined tide estimates deduced from many long time series of station barometer measurements. These comparisons show that the ECMWF (analysis) tides are significantly more accurate than the tides deduced from two other widely available reanalysis products. Spectral analysis of ECMWF pressure series shows that the tides consist of sharp central peaks with modulating sidelines at integer multiples of 1 cycle/year, superimposed on a broad cusp of stochastic energy. The integrated energy in the cusp dominates that of the sidelines. This complicates the development of a simple empirical model that can characterize the full temporal variability of the tides.

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The geographical distribution of the solar semidiurnal surface pressure oscillation

Cited by 19 publications

References 17 publications

Simulation of solar tides in the Canadian Climate Centre general circulation model

Simulation of solar tides in the Canadian Climate Centre general circulation model

A planetary‐scale land–sea breeze circulation in East Asia and the western North Pacific

Barometric tides from ECMWF operational analyses

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