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Artykuły w czasopismach na temat „Zonal structures”

Autor: Grafiati

Data publikacji: 21 grudnia 2024

Data aktualizacji: 31 lipca 2025

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1

Falessi, Matteo Valerio, and Fulvio Zonca. "Transport theory of phase space zonal structures." Physics of Plasmas 26, no. 2 (2019): 022305. http://dx.doi.org/10.1063/1.5063874.

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Liu, Libo, Yuyan Yang, Huijun Le, et al. "Unexpected Regional Zonal Structures in Low Latitude Ionosphere Call for a High Longitudinal Resolution of the Global Ionospheric Maps." Remote Sensing 14, no. 10 (2022): 2315. http://dx.doi.org/10.3390/rs14102315.

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This study reports unexpected strong longitudinal structures from Global Navigation Satellite System (GNSS) derived total electron content (TEC) observations in the low-latitude ionosphere over Asia. The observations during 2019–2020 show diverse patterns in the zonal difference of regional TEC, even under geomagnetically quiet conditions. The TEC in the northern hemisphere occasionally exhibits drastic zonal gradients. The intense regional gradients in TEC span a longitudinal extent of about 20°. The higher values may appear on the east or the west side. Strong zonal gradients may appear in a

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3

Bakas, Nikolaos A., and Petros J. Ioannou. "A theory for the emergence of coherent structures in beta-plane turbulence." Journal of Fluid Mechanics 740 (January 6, 2014): 312–41. http://dx.doi.org/10.1017/jfm.2013.663.

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AbstractPlanetary turbulent flows are observed to self-organize into large-scale structures such as zonal jets and coherent vortices. One of the simplest models of planetary turbulence is obtained by considering a barotropic flow on a beta-plane channel with turbulence sustained by random stirring. Nonlinear integrations of this model show that as the energy input rate of the forcing is increased, the homogeneity of the flow is broken with the emergence of non-zonal, coherent, westward propagating structures and at larger energy input rates by the emergence of zonal jets. We study the emergenc

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4

Dorset, Douglas L., Christopher J. Gilmore, Jose Luis Jorda, and Stavros Nicolopoulos. "Direct electron crystallographic determination of zeolite zonal structures." Ultramicroscopy 107, no. 6-7 (2007): 462–73. http://dx.doi.org/10.1016/j.ultramic.2006.05.013.

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5

SANDBERG, INGMAR, and V. P. PAVLENKO. "Zonal flow in toroidal ion temperature gradient mode turbulence." Journal of Plasma Physics 73, no. 4 (2007): 565–73. http://dx.doi.org/10.1017/s0022377806004831.

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AbstractThe properties of zonal flows in the toroidal ion temperature gradient mode turbulence are investigated taking into account the polarization drift effects. The stability criterion and the characteristic oscillation frequency of the zonal flow are determined in terms of the spectra of turbulent fluctuations. The nonlinear evolution of zonal flows may lead to the formation of stationary long-lived coherent structures supporting stationary shear layers. These results indicate the existence of regions with reduced levels of anomalous transport attributed to zonal flows generalizing previou

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6

Ilgisonis, V. I., V. P. Lakhin, N. A. Marusov, A. I. Smolyakov, and E. A. Sorokina. "Low-frequency zonal flow eigen-structures in tokamak plasmas." Nuclear Fusion 62, no. 6 (2022): 066002. http://dx.doi.org/10.1088/1741-4326/ac3f4c.

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Abstract The nonlocal eigenmode analysis of low-frequency zonal flows (ZFs) in toroidally rotating tokamak plasmas is performed in the framework of the reduced one-fluid ideal magnetohydrodynamic model. It is shown that for typical profiles of plasma parameters toroidal plasma rotation results in the global ZF formation on the periphery of plasma column. For some types of equilibria these ZFs are aperiodically unstable that leads to the excitation of the differential plasma rotation at the tokamak plasma edge.

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7

Singh, Rameswar, R. Singh, P. Kaw, Ö. D. Gürcan, and P. H. Diamond. "Coherent structures in ion temperature gradient turbulence-zonal flow." Physics of Plasmas 21, no. 10 (2014): 102306. http://dx.doi.org/10.1063/1.4898207.

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8

Yang, Yi, Bing-Bing Xu, Jun Lv, Miao Cui, Huayu Liu, and Xiaowei Gao. "Petrov-Galerkin zonal free element method for piezoelectric structures." Applied Mathematical Modelling 143 (July 2025): 116057. https://doi.org/10.1016/j.apm.2025.116057.

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9

Golebiowska, Aleksandra A., and Syam P. Nukavarapu. "Bio-inspired zonal-structured matrices for bone-cartilage interface engineering." Biofabrication 14, no. 2 (2022): 025016. http://dx.doi.org/10.1088/1758-5090/ac5413.

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Abstract Design and development of scaffold structures for osteochondral (OC) interface regeneration is a significant engineering challenge. Recent efforts are aimed at recapitulating the unique compositional and hierarchical structure of an OC interface. Conventional scaffold fabrication techniques often have limited design control and reproducibility, and the development of OC scaffolds with zonal hierarchy and structural integrity between zones is especially challenging. In this study, a series of multi-zonal and gradient structures were designed and fabricated using three-dimensional biopr

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10

Helfrich, Karl R., and Joseph Pedlosky. "Time-dependent isolated anomalies in zonal flows." Journal of Fluid Mechanics 251 (June 1993): 377–409. http://dx.doi.org/10.1017/s0022112093003453.

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A theory is developed for time-dependent coherent structures in a marginally stable atmospheric zonal flow. The coherent structures have the form of solitary waves travelling in the zonal direction. Analytical solutions are found for stationary solitary waves but these are shown to be always unstable. The instability manifests itself either as a fission of the structure subsequently emitting two oppositely directed travelling solitary waves or as an implosion in which the structure becomes increasingly more narrow and intense. Which of the two occurs depends sensitively on initial conditions.

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11

Zhou, Yao, Hongxuan Zhu, and I. Y. Dodin. "Solitary zonal structures in subcritical drift waves: a minimum model." Plasma Physics and Controlled Fusion 62, no. 4 (2020): 045021. http://dx.doi.org/10.1088/1361-6587/ab78f3.

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12

Sheshadri, Aditi, R. Alan Plumb, Erik A. Lindgren, and Daniela I. V. Domeisen. "The Vertical Structure of Annular Modes." Journal of the Atmospheric Sciences 75, no. 10 (2018): 3507–19. http://dx.doi.org/10.1175/jas-d-17-0399.1.

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Stratosphere–troposphere interactions are conventionally characterized using the first empirical orthogonal function (EOF) of fields such as zonal-mean zonal wind. Perpetual-winter integrations of an idealized model are used to contrast the vertical structures of EOFs with those of principal oscillation patterns (POPs; the modes of a linearized system governing the evolution of zonal flow anomalies). POP structures are shown to be insensitive to pressure weighting of the time series of interest, a factor that is particularly important for a deep system such as the stratosphere and troposphere.

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13

Bakas, Nikolaos A., Navid C. Constantinou, and Petros J. Ioannou. "S3T Stability of the Homogeneous State of Barotropic Beta-Plane Turbulence." Journal of the Atmospheric Sciences 72, no. 5 (2015): 1689–712. http://dx.doi.org/10.1175/jas-d-14-0213.1.

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Abstract Zonal jets and nonzonal large-scale flows are often present in forced–dissipative barotropic turbulence on a beta plane. The dynamics underlying the formation of both zonal and nonzonal coherent structures is investigated in this work within the statistical framework of stochastic structural stability theory (S3T). Previous S3T studies have shown that the homogeneous turbulent state undergoes a bifurcation at a critical parameter and becomes inhomogeneous with the emergence of zonal and/or large-scale nonzonal flows and that these statistical predictions of S3T are reflected in direct

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14

Poyrazoglu, Gokturk. "Determination of Price Zones during Transition from Uniform to Zonal Electricity Market: A Case Study for Turkey." Energies 14, no. 4 (2021): 1014. http://dx.doi.org/10.3390/en14041014.

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In the electricity market, different pricing models can be applied to increase market competitiveness. Different electricity systems use different market structures. Uniform marginal pricing, zonal marginal pricing, and nodal marginal pricing methods are commonly used market structures. For markets wishing to move from a uniform pricing structure to a more competitive zonal pricing structure, the determination of price zones is critical for achieving a competitive market that generates accurate price signals. Three different pricing zone detection algorithms are analyzed in this paper includin

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15

Chen, L., and F. Zonca. "Nonlinear equilibria, stability and generation of zonal structures in toroidal plasmas." Nuclear Fusion 47, no. 8 (2007): 886–91. http://dx.doi.org/10.1088/0029-5515/47/8/021.

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16

Itoh, K., K. Hallatschek, S. Toda, et al. "Collisional effects on coherent structures of zonal flows and turbulent transport." Plasma Physics and Controlled Fusion 46, no. 5A (2004): A335—A340. http://dx.doi.org/10.1088/0741-3335/46/5a/037.

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17

Bencze, A., M. Berta, S. Zoletnik, J. Stockel, J. Adámek, and M. Hron. "Observation of zonal flow-like structures using the autocorrelation-width technique." Plasma Physics and Controlled Fusion 48, no. 4 (2006): S137—S153. http://dx.doi.org/10.1088/0741-3335/48/4/s10.

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18

Das, Amita, Abhijit Sen, Sangeeta Mahajan, and Predhiman Kaw. "Zonal and streamer structures in magnetic-curvature-driven Rayleigh–Taylor instability." Physics of Plasmas 8, no. 12 (2001): 5104–12. http://dx.doi.org/10.1063/1.1416483.

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19

Kaw, Predhiman, Raghvendra Singh, and P. H. Diamond. "Coherent nonlinear structures of drift wave turbulence modulated by zonal flows." Plasma Physics and Controlled Fusion 44, no. 1 (2001): 51–59. http://dx.doi.org/10.1088/0741-3335/44/1/305.

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20

Li, Yue, Jiye Wu, Jing-Jia Luo, and Young Min Yang. "Evaluating the Eastward Propagation of the MJO in CMIP5 and CMIP6 Models Based on a Variety of Diagnostics." Journal of Climate 35, no. 6 (2022): 1719–43. http://dx.doi.org/10.1175/jcli-d-21-0378.1.

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Abstract Given the climatic importance of the Madden–Julian oscillation (MJO), this study evaluates the capability of CMIP6 models in simulating MJO eastward propagation in comparison with their CMIP5 counterparts. To understand the representation of MJO simulation in models, a set of diagnostics with respect to MJO-associated dynamic and thermodynamic structures is applied, including large-scale zonal circulation, vertical structures of diabatic heating and equivalent potential temperature, moisture convergence at the planetary boundary layer (PBL), and the east–west asymmetry of moisture ten

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21

Wang, Bin, and Sun-Seon Lee. "MJO Propagation Shaped by Zonal Asymmetric Structures: Results from 24 GCM Simulations." Journal of Climate 30, no. 19 (2017): 7933–52. http://dx.doi.org/10.1175/jcli-d-16-0873.1.

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Abstract Eastward propagation is an essential characteristic of the Madden–Julian oscillation (MJO). Yet, simulation of MJO propagation in general circulation models (GCMs) remains a major challenge and understanding the causes of propagation remains controversial. The present study explores why the GCMs have diverse performances in MJO simulation by diagnosis of 24 GCM simulations. An intrinsic linkage is found between MJO propagation and the zonal structural asymmetry with respect to the MJO convective center. The observed and realistically simulated MJO eastward propagations are characteriz

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22

Averkina, T. I., and V. T. Trofimov. "Types of engineering geological structures of the Russia territory." Moscow University Bulletin. Series 4. Geology, no. 5 (October 28, 2016): 3–15. http://dx.doi.org/10.33623/0579-9406-2016-5-3-15.

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Engineering geological structures are divided by a combination of regional and zonal geological factors. Classifications of engineering geological structures of the Earth and Russia are submitted. Main engineering geological features and regularities of spatial distribution of continental subaerial, continental subaquatic, transitional predominant isubaquatic, and oceanic predominant isubaquatic engineering geological mega- and macrostructures of the Russia have been described.

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23

Guo, L., and G. Lehmacher. "First meteor radar observations of tidal oscillations over Jicamarca (11.95° S, 76.87° W)." Annales Geophysicae 27, no. 6 (2009): 2575–83. http://dx.doi.org/10.5194/angeo-27-2575-2009.

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Abstract. Tidal oscillations in the equatorial mesosphere and lower thermosphere (MLT) region over Jicamarca (11.95° S, 76.87° W) are studied using the observations from the newly installed Jicamarca All-sky Specular MEteor Radar (JASMET). The vertical structure and seasonal variability of diurnal and semidiurnal tides from 80–100 km are presented. The analyses show a strong diurnal tide over Jicamarca for both zonal and meridional components with the meridional amplitudes being larger than the zonal ones. Maximal diurnal amplitudes, 45 m/s for zonal and 55 m/s for meridional, are observed aro

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24

Beebe, Reta F. "Growth and dispersion of the Shoemaker-Levy 9 impact features from HST imaging." International Astronomical Union Colloquium 156 (May 1996): 307–28. http://dx.doi.org/10.1017/s0252921100115568.

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The Hubble Space Telescope Wide Field Planetary Camera 2 imaging data provide the highest spatial resolution of individual Shoemaker-Levy 9 impact sites. Analysis of images obtained with the F410M filter yielded horizontal translation rates of tropospheric cloud structures and the east-west components have been interpreted as zonal winds which vary with latitude. When the tropospheric zonal winds between —60° and —30°, which were derived from the SL9 images, are compared with Voyager data there are no discernible changes in the magnitude or latitudinal positions of wind minima and maxima. This

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25

Gong, Yuhan, Jiahao Lu, and Tian Li. "The Impact of Annual Cycles on Anomalous Wind Meridional Structures of the ENSO." Atmosphere 15, no. 8 (2024): 950. http://dx.doi.org/10.3390/atmos15080950.

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The anomalous zonal wind moves southward during the ENSO mature phase in boreal winter. Previous studies suggest that it may be caused by the nonlinear interaction of annual cycles or the influence of background mean state changes. In this research, the ECHAM4.6 atmospheric model is used to confirm the mechanism of the anomalous zonal wind southward shifting. The annual cycle of solar radiation and SST are removed in the sensitivity experiments to avoid the interaction between the ENSO and annual cycle. The results show that the north–south asymmetry mode of the ENSO anomalous wind field is no

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26

Koshkin, Konstantin A., and Ilya A. Tatarinov. "Development of Zone Forecast probability Models for Oil and Gas Potential in the Central Part of the Permian Uplift by Structural and Capacity Criteria." Недропользование 21, no. 1 (2021): 2–8. http://dx.doi.org/10.15593/2712-8008/2021.1.1.

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The task to which this article is devoted has not received due attention in recent years, since the preparation of structures for deep drilling is carried out using seismic exploration. At the same time, there is a huge array of data on structured drilling, unfortunately, it has not been fully used. Thus, the goal of the study is to use data on structured drilling to solve not only structural problems for marking surfaces, but also more complex ones related to zonal oil and gas potential of territories. The forecast of oil and gas content for marking and oil and gas horizons was carried out in

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27

Monahan, Adam H., and John C. Fyfe. "On the Nature of Zonal Jet EOFs." Journal of Climate 19, no. 24 (2006): 6409–24. http://dx.doi.org/10.1175/jcli3960.1.

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Abstract Analytic results are obtained for the mean and covariance structure of an idealized zonal jet that fluctuates in strength, position, and width. Through a systematic perturbation analysis, the leading empirical orthogonal functions (EOFs) and principal component (PC) time series are obtained. These EOFs are built of linear combinations of basic patterns corresponding to monopole, dipole, and tripole structures. The analytic results demonstrate that in general the individual EOF modes cannot be interpreted in terms of individual physical processes. In particular, while the dipole EOF (s

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28

Katsura, Shota, Hiromichi Ueno, Humio Mitsudera, and Shinya Kouketsu. "Spatial Distribution and Seasonality of Halocline Structures in the Subarctic North Pacific." Journal of Physical Oceanography 50, no. 1 (2020): 95–109. http://dx.doi.org/10.1175/jpo-d-19-0133.1.

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AbstractThe spatial distribution and seasonality of halocline structures in the subarctic North Pacific (SNP) were investigated using Argo profiling float data and various surface flux data collected in 2003–17. The permanent halocline (PH) showed zonal patterns in the spatial distributions of its depth and intensity and tended to be shallow and strong in the eastern SNP but deep and weak in the west. Mean distributions of PH depth and intensity corresponded to the winter mixed layer depth and sea surface salinity, respectively, indicating that it forms in association with the development of t

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29

Zhou, Yao, Hongxuan Zhu, and I. Y. Dodin. "Formation of solitary zonal structures via the modulational instability of drift waves." Plasma Physics and Controlled Fusion 61, no. 7 (2019): 075003. http://dx.doi.org/10.1088/1361-6587/ab16a8.

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30

Onishchenko, O. G., and O. A. Pokhotelov. "Generation of zonal structures by internal gravity waves in the Earth’s atmosphere." Doklady Earth Sciences 445, no. 1 (2012): 845–48. http://dx.doi.org/10.1134/s1028334x12070070.

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31

Li, Ling, Mingshun Yuan, and Quanming Li. "Zonal embedded grids for LES of self-sustaining structures of wall turbulence." Tsinghua Science and Technology 15, no. 5 (2010): 555–60. http://dx.doi.org/10.1016/s1007-0214(10)70100-0.

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32

Qiu, Zhiyong, Liu Chen, and Fulvio Zonca. "Nonlinear excitation of finite-radial-scale zonal structures by toroidal Alfvén eigenmode." Nuclear Fusion 57, no. 5 (2017): 056017. http://dx.doi.org/10.1088/1741-4326/aa6413.

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33

Goncharova, I. A., L. N. Skripalshikova, and A. P. Barchenkov. "Floristic analysis of birch coenosis in Krasnoyarsk forest-steppe." Проблемы ботаники Южной Сибири и Монголии 19, no. 1 (2020): 98–102. http://dx.doi.org/10.14258/pbssm.2020020.

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The flora composition of the of birch coenosis in Krasnoyarsk forest-steppe has been studied. Thetaxonomic, chorological, belt-zonal, ecological, biomorphological structures of flora are determined. Species to beprotected have been discovered.

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34

Kantorovich, Ye G. "Equilibrium Models of Spatial Interaction with Locational-Capacity Constraints." Environment and Planning A: Economy and Space 24, no. 8 (1992): 1077–95. http://dx.doi.org/10.1068/a241077.

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Two types of equilibrium models of urban spatial structures are considered. An equilibrium version of the production-constrained spatial interaction model involving zonal-capacity constraints on allocation is investigated. A model of equilibrium for interacting subsystems is defined (it is a generalisation of Nash equilibria and of some Lowry-type models) and connections between this model and Nash equilibria are investigated. An entropy-projection operator is used for equilibrium urban models with zonal-capacity constraints. Problems of uniqueness of an equilibrium and the convergence of the

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35

Sekar, R., D. Chakrabarty, R. Narayanan, and A. K. Patra. "Equatorial Spread F structures and associated airglow intensity variations observed over Gadanki." Annales Geophysicae 26, no. 12 (2008): 3863–73. http://dx.doi.org/10.5194/angeo-26-3863-2008.

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Abstract. Co-ordinated campaigns have been conducted from Gadanki (13.5° N, 79.2° E, dip lat 6.4° N) by operating simultaneously the Indian MST radar in ionospheric coherent backscatter mode and by monitoring thermosphere airglow line emissions (630.0 nm and 777.4 nm) using a narrow band multi-wavelength scanning photometer during January-March for the past five years (2003–2007) and also during April 2006, as a special campaign. Simultaneous radar and optical observations reveal optical signatures corresponding to a variety of equatorial spread F (ESF) structures. The optical signatures corre

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36

Cash, Benjamin A., Paul J. Kushner, and Geoffrey K. Vallis. "Zonal Asymmetries, Teleconnections, and Annular Patterns in a GCM." Journal of the Atmospheric Sciences 62, no. 1 (2005): 207–19. http://dx.doi.org/10.1175/jas-3361.1.

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Abstract The influence of zonally asymmetric boundary conditions on the leading modes of variability in a suite of atmospheric general circulation models is investigated. The set of experiments consists of nine model configurations, with varying degrees and types of zonal asymmetry in their boundary conditions. The structure of the leading EOF varies with the zonal asymmetry of the base state for each model configuration. In particular, a close relationship is found between the structure of the EOF and the model storm tracks. An approximately linear relationship is found to hold between the ma

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37

Lin, Min-Kai, and Marius Lehmann. "Dust Dynamics in Radially Convective Regions of Protoplanetary Disks." Astrophysical Journal 980, no. 1 (2025): 94. https://doi.org/10.3847/1538-4357/adabe6.

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Abstract Hydrodynamic instabilities likely operate in protoplanetary disks. One candidate, convective overstability (COS), can be triggered in regions with a negative radial entropy gradient. The ensuing turbulence and flow structures are expected to affect dust dynamics directly. We revisit the interaction between dust and the COS with high-resolution spectral simulations in the unstratified, axisymmetric Boussinesq shearing box framework. We find zonal flows, or pressure bumps, formed by the COS trap dust, as expected, but dust densities increase at most by a factor of O(10) over its backgro

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38

Le Dizès, Stéphane. "Wave field and zonal flow of a librating disk." Journal of Fluid Mechanics 782 (October 6, 2015): 178–208. http://dx.doi.org/10.1017/jfm.2015.530.

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In this work, we provide a viscous solution of the wave field generated by librating a disk (harmonic oscillation of the rotation rate) in a stably stratified rotating fluid. The zonal flow (mean flow correction) generated by the nonlinear interaction of the wave field is also calculated in the weakly nonlinear framework. We focus on the low dissipative limit relevant for geophysical applications and for which the wave field and the zonal flow exhibit generic features (Ekman scaling, universal structures, etc.). General expressions are obtained which depend on the disk radius $a^{\ast }$, the

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39

Alonso, J. A., C. Hidalgo, M. A. Pedrosa, B. Van Milligen, D. Carralero, and C. Silva. "Dynamic transport regulation by zonal flow-like structures in the TJ-II stellarator." Nuclear Fusion 52, no. 6 (2012): 063010. http://dx.doi.org/10.1088/0029-5515/52/6/063010.

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40

Kaladze, T. D., D. J. Wu, L. V. Tsamalashvili, and G. V. Jandieri. "Localized magnetized Rossby structures under zonal shear flow in the ionospheric E-layer." Physics Letters A 365, no. 1-2 (2007): 140–43. http://dx.doi.org/10.1016/j.physleta.2007.01.002.

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41

Bottino, A., M. V. Falessi, T. Hayward-Schneider, et al. "Time evolution and finite element representation of Phase Space Zonal Structures in ORB5." Journal of Physics: Conference Series 2397, no. 1 (2022): 012019. http://dx.doi.org/10.1088/1742-6596/2397/1/012019.

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Abstract Phase Space Zonal Structures (PSZSs), obtained by averaging out dependencies on angle-like variables in the energetic particle (EP) distribution function, play a fundamental role in regulating EP transport induced by Alfvén instabilities in burning plasmas, acting as a slowly varying nonlinear equilibrium state. Therefore, they are of great interest for the development of reduced models for the description of EP heat and particle transport on long time scales, comparable with the energy confinement time, for future burning plasma experiments. In this work, we propose an efficient fini

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42

Martinis, Carlos, Dustin Hickey, Joei Wroten, et al. "All-Sky Imager Observations of the Latitudinal Extent and Zonal Motion of Magnetically Conjugate 630.0 nm Airglow Depletions." Atmosphere 11, no. 6 (2020): 642. http://dx.doi.org/10.3390/atmos11060642.

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630.0 nm all-sky imaging data are used to detect airglow depletions associated with equatorial spread F. Pairs of imagers located at geomagnetically conjugate locations in the American sector at low and mid-latitudes provide information on the occurrence rate and zonal motion of airglow depletions. Airglow depletions are seen extending to magnetic latitudes as high as 25°. An asymmetric extension is observed with structures in the northern hemisphere reaching higher latitudes. By tracking the zonal motion of airglow depletions, zonal plasma drifts in the thermosphere can be inferred and their

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KANE, R. P. "Long-term variations in the characteristics of the equatorial stratospheric zonal winds." MAUSAM 52, no. 3 (2022): 515–26. http://dx.doi.org/10.54302/mausam.v52i3.1721.

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Stratospheric equatorial zonal winds from 1951 onwards up to the present show considerable long-term variations, more so at higher levels, These are rarely monotonic and often show multi-periodic structures, including a sunspot cycle (II year variations), Stratospheric temperatures and geopotential heights also show multi-periodic variations, A periodicity near 20 years is encountered often.

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Cravatte, S., Elodie Kestenare, Frédéric Marin, Pierre Dutrieux, and Eric Firing. "Subthermocline and Intermediate Zonal Currents in the Tropical Pacific Ocean: Paths and Vertical Structure." Journal of Physical Oceanography 47, no. 9 (2017): 2305–24. http://dx.doi.org/10.1175/jpo-d-17-0043.1.

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AbstractThe mean subthermocline and intermediate zonal circulation in the tropical Pacific is investigated using a compilation of shipboard ADCP measurements and absolute geostrophic velocities constructed from a high-resolution 0–2000-m Argo climatology referenced to a 1000-m velocity field derived from Argo float drifts. This reference field is dominated by basinwide alternating zonal jets with a meridional wavelength of about 3°. In regions where the sampling of SADCP data is sufficient, the consistency between the two independent datasets is striking; using the Argo drift reference is cruc

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Novikov, D. A., Ya V. Fomina, I. I. Yurchik, A. V. Chernykh, F. F. Dultsev, and S. V. Golovin. "Optimal Set of Criteria for the Zonal Forecast of the Potential for Carbon Dioxide Capture and Storage in Geological Formations." Ecology and Industry of Russia 27, no. 4 (2023): 44–49. http://dx.doi.org/10.18412/1816-0395-2023-4-44-49.

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Geological criteria for the zonal evaluation of the RF territory potential for CO2 capture and storage are substantiated. The criteria of zonal forecast for the areas within the RF boundaries are proposed to arrange and monitor underground storage facilities are proposed on the basis of the international and Russian regulatory frameworks on the disposal of carbon dioxide, industrial wastewaters, toxic wastes, arrangement and monitoring of underground storage facilities for the purpose of implementing Carbon Capture and Storage (CCS) projects. The scheme of investigation of the geological struc

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Punge, H. J., and M. A. Giorgetta. "Differences between the QBO in the first and in the second half of the ERA-40 reanalysis." Atmospheric Chemistry and Physics 7, no. 3 (2007): 599–608. http://dx.doi.org/10.5194/acp-7-599-2007.

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Abstract. The representation of the quasi-biennial oscillation (QBO) is investigated in the ERA-40 reanalysis. In the lower stratosphere, where there are a reasonable number of observations, the representation of the QBO is equally good throughout the record. However, strong differences between the first and the second half of the zonal wind data set are found in the upper stratosphere, with a typical offset of –10 m/s in the equatorial zonal wind in the earlier part versus the later part of the ERA-40 record. At the same time, the strength of the QBO is similar. The 7-year running means of zo

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Tartaglione, Nazario. "Unprecedented Flooding in the Marche Region (Italy): Analyzing the 15 September 2022 Event and Its Unique Meteorological Conditions." Meteorology 4, no. 1 (2025): 3. https://doi.org/10.3390/meteorology4010003.

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On 15 September 2022, a flood affected the Marche region, an Italian region that faces the Adriatic Sea. Unlike previous floods that affected the same area, no typical weather system, such as cyclones or synoptic fronts, caused the recorded extreme precipitation. In fact, the synoptic situation was characterized by a zonal flow, which normally does not cause intense precipitation over that area. The aim of this study was to understand which ingredients led to extraordinary precipitation in the region. ERA5 and the Weather Research Forecast (WRF) model were used to describe the synoptic situati

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Dietrich, Wieland, Paula Wulff, Johannes Wicht, and Ulrich R. Christensen. "Linking zonal winds and gravity – II. Explaining the equatorially antisymmetric gravity moments of Jupiter." Monthly Notices of the Royal Astronomical Society 505, no. 3 (2021): 3177–91. http://dx.doi.org/10.1093/mnras/stab1566.

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ABSTRACT The recent gravity field measurements of Jupiter (Juno) and Saturn (Cassini) confirm the existence of deep zonal flows reaching to a depth of 5 per cent and 15 per cent of the respective radius. Relating the zonal wind-induced density perturbations to the gravity moments has become a major tool to characterize the interior dynamics of gas giants. Previous studies differ with respect to the assumptions made on how the wind velocity relates to density anomalies, on the functional form of its decay with depth, and on the continuity of antisymmetric winds across the equatorial plane. For

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L’Heureux, Michelle L., and David W. J. Thompson. "Observed Relationships between the El Niño–Southern Oscillation and the Extratropical Zonal-Mean Circulation." Journal of Climate 19, no. 2 (2006): 276–87. http://dx.doi.org/10.1175/jcli3617.1.

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Abstract There is increasing evidence indicating that the climate response to variations in the El Niño–Southern Oscillation (ENSO) includes not only thermally forced zonal wind anomalies in the subtropics but also eddy-driven zonal wind anomalies that extend into the mid–high latitudes of both hemispheres. In this study, new insights into the observed seasonally varying signature of ENSO in the extratropical zonal-mean circulation are provided and the associated linkages with the dominant patterns of extratropical variability are examined. The zonal-mean extratropical atmospheric response to

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Sun, Cheng, and Jianping Li. "Space–Time Spectral Analysis of the Southern Hemisphere Daily 500-hPa Geopotential Height." Monthly Weather Review 140, no. 12 (2012): 3844–56. http://dx.doi.org/10.1175/mwr-d-12-00019.1.

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Abstract In this paper the authors use the NCEP–Department of Energy (DOE) Reanalysis 2 (NCEP2) data from 1979 to 2004 to expand the daily 500-hPa geopotential height in the Southern Hemisphere (SH, 90°–20°S) into a double Fourier series, and analyze the temporal frequency characteristics of the expansion coefficients over various spatial scales. For the daily series over the whole year, the coefficient series of the extratropical-mean height is characterized by a significant low-frequency (10–30 day) variation. For zonal waves with (k, l) = (1–5, 1), where k and l are the zonal and meridional

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