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First, the model assumes the atmosphere is composed of fluid obeying quasi-geostrophic motion. Second, the model assumes a constant Coriolis parameter . The model also assumes a constant static stability parameter and that fluctuations in the density of the air are small (obeys the Boussinesq approximation ).
Dean instability: Stability of flow in a curved pipe: William Reginald Dean: D'yakov–Kontorovich instability: Stability of a plane shock: S. P. D'yakov and Victor M. Kontorovich Faraday instability: Vibrating fluid surfaces: M. Faraday: Farley–Buneman instability: Plasma instability: Donald T. Farley and Oscar Buneman: Görtler instability
Atmospheric instability is a condition where the Earth's atmosphere is considered to be unstable and as a result local weather is highly variable through distance and time. [ clarification needed ] [ 1 ] Atmospheric instability encourages vertical motion, which is directly correlated to different types of weather systems and their severity.
Immunodeficiency, centromere instability and facial anomalies syndrome ID Infectious disease: IED Intermittent explosive disorder: IFAP syndrome Ichthyosis follicularis, alopecia, and photophobia syndrome: IHA Idiopathic hyperaldosteronism: INAD Infantile neuroaxonal dystrophy: IP Incontinentia pigmenti: IRD Infantile Refsum disease: IS ...
A baroclinic instability is a fluid dynamical instability of fundamental importance in the atmosphere and ocean. It can lead to the formation of transient mesoscale eddies, with a horizontal scale of 10-100 km. [1] [2] In contrast, flows on the largest scale in the ocean are described as ocean currents, the largest scale eddies are mostly created by shearing of two ocean currents and static ...
Atrial fibrillation is associated with an increased risk of heart failure, dementia, and stroke. [3] [12] It is a type of supraventricular tachycardia. [14] Atrial fibrillation frequently results from bursts of tachycardia that originate in muscle bundles extending from the atrium to the pulmonary veins. [15]
Fluid instabilities occur in liquids, gases and plasmas, and are often characterized by the shape that form; they are studied in fluid dynamics and magnetohydrodynamics. Fluid instabilities include: Ballooning instability (some analogy to the Rayleigh–Taylor instability); found in the magnetosphere; Atmospheric instability
There are two major classes of cardiac fibrillation: atrial fibrillation and ventricular fibrillation. Atrial fibrillation is an irregular and uncoordinated contraction of the cardiac muscle of atria. It can be a chronic condition, usually treated with anticoagulation and sometimes with conversion to normal sinus rhythm.