Engineering topics
Publications and source records attributed to Ruzmaikin, A..
We show that the reconstructed sensitivity of the sea level temperature to long term solar forcing in the Northern Hemisphere is in very good agreement with the empirical temperature pattern corresponding to changes of the North Annular Mode (NAM).
Observations show that solar activity is distributed nonaxisymmetrically, concentrating at preferred longitudes.
Explore the source record for details and available documents.
We have found that the excitation of the North Annular Mode (NAM) of the wintertime geopotential height anomalies between 10 hPa and 1000 hPa is influenced by solar cycle changes and the effect is highly statistically significant.
We will briefly review recent studies showing that stratospheric disturbances propagate to the troposphere and that UV variability affects the atmospheric circulation in the stratosphere and troposphere in a coherent fashion. We will outline a mechanism by which solar-stratosphere-troposphere interaction may influence climate and discuss a simple model that includes the basic elements of this mechanism.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
The Solar Orbiter will open a unique opportunity to measure for the first time the spectrum of fluctuations in the solar wind produced by localized solar source.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
An 11-year variation is shown here to exist in an index of the atmospheric variability defined as the difference between the North Atlantic Oscillation and Arctic Oscillation indices.
Sunspots, seen as cool regions on the surface of the Sun, are a thermal phenomenon. Sunspots are always associated with bipolar magnetic loops that break through the solar surface.
We use the aa index of geomagnetic activity recorded for 130 years as a proxy for the strenght and phase properties of the solar dynamo.
In this talk a proposal to use the Faraday rotation of the linear polarized radio signals to determine the magnetic field of the solar corona will be discussed.
Direct measurements of the solar wind and the interplanetary magnetic field acquired over more than three solar cycles both near Earth and in interplanetary space are used to search for signatures of a persistent dependence of solar wind properties on solar longitude.
ENSO (El Nino and the Southern Oscillation) is considered as a stochastic driver that excites the atmospheric anomaly states, such as Pacific North American pattern. This can make the 11 year solar activity forcing feasible to climate through stochastic resonance -- a phenomenon that amplifies a weak input to a nonlinear bistable system by the assistance of noise.
The development of new technologies and the miniaturization of sensors bring new requirements for our ability to predict and forecast hazardous space weather conditions.