The kinetic energy spectrum in the free atmosphere-1 second to 5 years

Vinnichenko, N. K.

doi:10.1111/j.2153-3490.1970.tb01517.x

Cited by 73 publications

(34 citation statements)

References 13 publications

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“…Typically, the determination of the appropriate TAS is based on detecting the time scale that matches the mesoscale energy gap, i.e., the low-energy intermediate range in the kinetic energy spectrum of atmospheric motions [69]. Often, no obvious mesoscale gap can be found in the Fourier spectra of measurements from complex terrain [70][71][72].…”

Section: Data Processing Methodsmentioning

confidence: 99%

Exchange Processes in the Atmospheric Boundary Layer Over Mountainous Terrain

et al. 2018

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Abstract:The exchange of heat, momentum, and mass in the atmosphere over mountainous terrain is controlled by synoptic-scale dynamics, thermally driven mesoscale circulations, and turbulence. This article reviews the key challenges relevant to the understanding of exchange processes in the mountain boundary layer and outlines possible research priorities for the future. The review describes the limitations of the experimental study of turbulent exchange over complex terrain, the impact of slope and valley breezes on the structure of the convective boundary layer, and the role of intermittent mixing and wave-turbulence interaction in the stable boundary layer. The interplay between exchange processes at different spatial scales is discussed in depth, emphasizing the role of elevated and ground-based stable layers in controlling multi-scale interactions in the atmosphere over and near mountains. Implications of the current understanding of exchange processes over mountains towards the improvement of numerical weather prediction and climate models are discussed, considering in particular the representation of surface boundary conditions, the parameterization of sub-grid-scale exchange, and the development of stochastic perturbation schemes.

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Section: Data Processing Methodsmentioning

confidence: 99%

Exchange Processes in the Atmospheric Boundary Layer Over Mountainous Terrain

et al. 2018

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“…The existence of a pronounced stable minimum at a time scale from 10 days to a few months in power spectra of the main atmospheric variables, which allows us to distinguish between synoptic-scale, convective and``turbulent'' processes on one hand, and slower processes on the other hand ( Van der Hoven 1957;Vinnichenko 1970;Mitchell 1976). 2.…”

Section: Atmosphere Modulementioning

confidence: 99%

CLIMBER-2: a climate system model of intermediate complexity. Part I: model description and performance for present climate

Petoukhov¹,

Ganopolski²,

Brovkin³

et al. 2000

Climate Dynamics

431

393

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A 2.5-dimensional climate system model of intermediate complexity CLIMBER-2 and its performance for present climate conditions are presented. The model consists of modules describing atmosphere, ocean, sea ice, land surface processes, terrestrial vegetation cover, and global carbon cycle. The modules interact through the¯uxes of momentum, energy, water and carbon. The model has a coarse spatial resolution, nevertheless capturing the major features of the Earth's geography. The model describes temporal variability of the system on seasonal and longer time scales. Due to the fact that the model does not employ¯ux adjustments and has a fast turnaround time, it can be used to study climates signi®cantly dierent from the present one and to perform long-term (multimillennia) simulations. The comparison of the model results with present climate data show that the model successfully describes the seasonal variability of a large set of characteristics of the climate system, including radiative balance, temperature, precipitation, ocean circulation and cryosphere.

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“…In many respects, all such spectra resemble the general shape of the spectrum published by Van der Hoven, which showed a marked spectral gap between the synoptic and microscale portion of the spectrum (Kolensnikova and Monin, 1965;Byzova et al, 1967;Oort and Taylor, 1969;Vinnichenko, 1970;Harrington and Heddinghaus, 1974;Mori, 1980;Kai, 1984 etc.). But the regional variations of the spectra have not yet been shown by the previous studies, because all the spectra were obtained only at one place, or a few places.…”

Section: Introductionmentioning

confidence: 57%

Spectrum Climatology of the Surface Winds in Japan

Kai

1985

Journal of the Meteorological Society of Japan

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The regional variations of the spectra of the surface winds in Japan are investigated from the viewpoint of spectrum climatology.For 206 stations in Japan, the spectra of the surface winds over periods from 2 hours to a few years are analyzed using 5 years of 10-min averaged, hourly data.Characteristics of the spectra can be used as a climatic indicator. The shape of the spectrum at short periods (less than 10 days) depends on the local topography, and that at long periods (more than 10 days) is related to the geographical location.Most of the spectra are classified into three categories:The first is a strong wind type with a major synoptic peak, the second a strong wind type with a pronounced annual peak, the third a weak wind type with a major diurnal peak. But the spectra on the Nansei Islands (24-31*N, 123-130*E) are quite different from those on the main islands of Japan. The spectra on the Nansei Islands show two marked features:Firstly, the 40-60 day periodicity is predominant.Secondly, the synoptic portion of the spectra has a wide range of periods from 2 to 20 days. These features are related to the climate on the Nansei Islands, which is maritime and subtropical.The geographical distribution of the 40-60 day fluctuations is in good agreement with that of the zonal mean components of the surface winds. The 40-60 day fluctuations are predominant during summer half year and are associated with strong winds.

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The kinetic energy spectrum in the free atmosphere-1 second to 5 years

Cited by 73 publications

References 13 publications

Exchange Processes in the Atmospheric Boundary Layer Over Mountainous Terrain

Exchange Processes in the Atmospheric Boundary Layer Over Mountainous Terrain

CLIMBER-2: a climate system model of intermediate complexity. Part I: model description and performance for present climate

Spectrum Climatology of the Surface Winds in Japan

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