Results 101 to 110 of about 645,962 (239)

Construction of a Global Atmospheric Refractivity Model for Optical Wavelengths Based on Temporal Evolution Characteristics

open access: yesEarth and Space Science, Volume 13, Issue 10, October 2026.
Abstract Atmospheric refractivity model accuracy is important for refraction correction, starlight refraction navigation, and related optoelectronic applications. To address the insufficient understanding of refractivity temporal evolution and the lack of clear criteria for selecting model temporal resolution, this study constructs a global four ...
Zhiyan Ding, Pengfei Wu, Wenyue Zhu
wiley   +1 more source

Detection and Characterization of Thermal Rossby Waves in the Solar Interior

open access: yesThe Astrophysical Journal Letters
Several classes of inertial waves have recently been detected in the Sun, with their dispersion relations providing a robust diagnostic for characterizing these modes.
Krishnendu Mandal
doaj   +1 more source

The interaction of free Rossby waves with semi-transparent equatorial waveguide – wave-mean flow interaction [PDF]

open access: yesNonlinear Processes in Geophysics, 2009
Nonlinear interactions of the barotropic Rossby waves propagating across the equator with trapped baroclinic Rossby or Yanai modes and mean zonal flow are studied within the two-layer model of the atmosphere, or the ocean. It is shown that the equatorial
G. M. Reznik, V. Zeitlin
doaj  

Estimation of Mesoscale Momentum Flux Frequency Spectra in the Mesosphere and Lower Thermosphere Using Multistatic Specular Meteor Radar Wind Fields

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract A spectrally resolved observational methodology is introduced to estimate mesoscale momentum flux frequency spectra in the mesosphere and lower thermosphere (MLT). The method is applied to four‐dimensional wind fields reconstructed with the physics‐informed neural network approach called the Hydrodynamic Point‐wise Environment Reconstructor ...
G. Mitra   +5 more
wiley   +1 more source

Existence of small-scale Rossby waves points to low convective velocity amplitudes in the Sun

open access: yes
Inertial waves occur naturally in rotating fluids such as the Sun and the Earth's atmosphere. Rossby waves in the Sun have the potential to shed fresh light on interior turbulence and convection that prior seismic methods, reliant on sound waves, have ...
Hanson, C. S., Hanasoge, S.
core   +1 more source

SOFT Development of feature tracking methods [PDF]

open access: yes, 2003
The present report describes the work carried out within task 3.1 of Work Package 3 of the SOFT Project. The above task is ‘Development of feature tracking methods’ and consists of the development of a software to track large-scale, westward propagating ...
Challenor, Peter, Cipollini, Paolo
core   +1 more source

Opposite spectral properties of Rossby waves during weak and strong stratospheric polar vortex events [PDF]

open access: yesWeather and Climate Dynamics
In this study we provide a systematic characterization of Rossby wave activity during the 25 sudden stratospheric warming (SSW) and 31 strong polar vortex (SPV) events that occurred in the period 1979–2021, identifying the specific tropospheric and ...
M. Schutte   +4 more
doaj   +1 more source

Regional Sea‐Level Variability Captures Low‐Frequency Transport Through the Gulf of Mexico Gateways

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 10, October 2026.
Abstract Transports through the Yucatan Channel, Florida Straits, and Bahamas passages form the western‐boundary gateway connecting the Caribbean Sea, Gulf of Mexico, and North Atlantic. Their documented covariability with regional sea level suggests that satellite altimetry contains information about gateway transport variability, but its ability to ...
Giovanni Durante   +5 more
wiley   +1 more source

On caustics associated with Rossby waves [PDF]

open access: yes, 1996
summary:Rossby wave equations characterize a class of wave phenomena occurring in geophysical fluid dynamics. One technique useful in the analysis of these waves is the geometrical optics, or multi-dimensional WKB technique.
Gorman, Arthur D.
core   +1 more source

Upstream influence of midlatitude jet stream biases in boreal summer

open access: yesAtmospheric Science Letters
Climate models exhibit biases in the mean state and in variability across different regions of the Earth. For example, atmosphere‐only models have a poleward bias in summertime jet streams across the Northern Hemisphere (NH).
Lina Boljka   +3 more
doaj   +1 more source

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