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Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
PDR – a photodissociation region or photon-dominated region (both terms are used synonymously); a region in the neutral ISM in which far-ultraviolet photons dominate the heating and chemistry; PDS – is a distributed data system that NASA uses to archive data collected by Solar System missions.
Pages in category "Glossaries of meteorology" The following 4 pages are in this category, out of 4 total. ... Glossary of tornado terms; Glossary of tropical cyclone ...
Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth's atmosphere and that of other planets is studied. It is a multidisciplinary field of research and draws on environmental chemistry, physics, meteorology, computer modeling, oceanography, geology and volcanology and other disciplines.
Synchronized weather balloon launches have helped meteorologists create forecasts over the past 150 years, and now the old tradition is going high tech. Twice a day - every day of the year ...
Preprint repository of scholarly work in the fields of biomedical sciences, chemistry, and earth sciences >1,000 2007–2012 Nature Publishing Group: NutriXiv: Nutritional sciences: Preprint service for the nutritional sciences <100 2018 Center for Open Science: Optimization Online: Mathematics: Eprint repository for optimization topics >10,000 ...
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