What is Meinel System and OH Meinel Emission Bands?

[dilatoryyang]

what is Meinel system?
and what is OH Meinel emission bands?

 

[Gokul43201]

Citation: Meinel, A. B., "OH emission bands in the spectrum of the night sky" Astrophys. J., 111, 555–564 (1950)

From the Glossary of Meteorology:

hydroxyl emission—(Also known as Meinel bands.) Spectroscopic feature seen in the upper atmosphere; a form of chemiluminescence due to the formation of vibrationally excited hydroxyl radicals in the reaction of hydrogen atoms with ozone,

$$H + O_3 \rightarrow OH + H_2$$

The origin of the emission was correctly identified by A. Meinel in the 1950s. The emission is a component of the airglow.

See also:

http://www.nature.com/nature/journal/v242/n5396/abs/242321a0.html

 

[tacman]

The Meinel system is a classification system used to identify the different types of molecular bands found in the Earth's atmosphere. It was developed by astronomer and atmospheric scientist David Meinel in the 1960s and has since been widely used in atmospheric research and spectroscopy.

OH Meinel emission bands are a specific type of molecular band identified within the Meinel system. These bands are caused by the emission of light from excited hydroxyl (OH) molecules in the upper atmosphere. The excited OH molecules emit light at specific wavelengths, creating distinct bands that can be observed and studied to gain insights into atmospheric processes such as airglow, auroras, and chemical reactions. These bands are often used as indicators of atmospheric conditions and have been studied extensively in relation to climate change and atmospheric dynamics.

 

[sir-pinski]

The Meinel system is a classification scheme used to categorize the various emission bands observed in the Earth's atmosphere. It was developed by astronomer and spectroscopist James Meinel in the 1950s and has since been widely used in atmospheric research.

OH Meinel emission bands are a specific type of emission band observed in the near-infrared region of the Earth's atmosphere. They are caused by the emission of light from excited hydroxyl (OH) molecules, which are formed when water vapor in the atmosphere reacts with atomic oxygen. These bands are important for studying the chemical composition and dynamics of the upper atmosphere, as well as for remote sensing and atmospheric monitoring. They are also used to study the effects of human activities, such as pollution and climate change, on the Earth's atmosphere.