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In the natural sciences, especially in atmospheric and Earth sciences involving applied statistics, an anomaly is a persisting deviation in a physical quantity from its expected value, e.g., the systematic difference between a measurement and a trend or a model prediction. [1]
Henry Bauer, emeritus professor of science studies at Virginia Tech, writes that anomalistics is "a politically correct term for the study of bizarre claims", [5] while David J. Hess of the Department of Science and Technology Studies at the Rensselaer Polytechnic Institute describes it as being "the scientific study of anomalies defined as ...
Also referred to as frequency-based or counting-based, the simplest non-parametric anomaly detection method is to build a histogram with the training data or a set of known normal instances, and if a test point does not fall in any of the histogram bins mark it as anomalous, or assign an anomaly score to test data based on the height of the bin ...
Anomalous propagation can be a limiting factor for the propagation of radiowaves, especially the super refraction. However, reflection on the ionosphere is a common use of this phenomenon to extend the range of the signal. Other multiple reflections or refractions are more complex to predict but can be still useful.
Anomalous precession, another term for "apsidal precession" Eccentric anomaly, an intermediate value used to compute the position of a celestial object as a function of time; Flyby anomaly, an unexpected energy increase during the flybys of the Earth by various satellites; Mean anomaly, a measure of time in the study of orbital dynamics
UAP originally stood for "unidentified aerial phenomena", but was expanded at the end of 2022 to mean "unidentified anomalous phenomena". To complete their work, the independent NASA team identified how data gathered by civilian, commercial, and government entities as well as any other sources can most effectively be analyzed to shed light on UAPs.
The Bangui magnetic anomaly in central Africa and the Kursk magnetic anomaly in eastern Europe (both in red) In geophysics, a magnetic anomaly is a local variation in the Earth's magnetic field resulting from variations in the chemistry or magnetism of the rocks.
Anomalous global symmetries are often consistent, but anomalous gauge symmetries are usually inconsistent. Pages in category "Anomalies (physics)" The following 19 pages are in this category, out of 19 total.