Airborne Laser Spectroscopy System Can Map Atmospheric Gases

Eos ◽

10.1029/2017eo078723 ◽

2017 ◽

Cited By ~ 1

Author(s):

Kimberly Cartier

Keyword(s):

Laser Spectroscopy ◽

Methane Emission ◽

Chemical Weapons ◽

Emission Sources ◽

Atmospheric Gases ◽

Earth’S Atmosphere ◽

Airborne Laser ◽

Spectroscopy System ◽

Earth's Atmosphere

A new versatile spectroscopy system could create ultraprecise maps of Earth’s atmosphere, detect methane emission sources, and scan for chemical weapons.

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Firework Emissions for Satellite Validation?

Environmental Chemistry ◽

10.1071/en05022 ◽

2005 ◽

Vol 2 (2) ◽

pp. 94 ◽

Cited By ~ 4

Author(s):

Jonathan Williams ◽

Frank Drewnick ◽

Silke S. Hings ◽

Joachim Curtius ◽

Gunter Eerdekens ◽

...

Keyword(s):

Local Area ◽

Environmental Context ◽

Atmospheric Gases ◽

Earth’S Atmosphere ◽

Long Period ◽

Satellite Validation ◽

Earth's Atmosphere ◽

Satellite Instruments

Environmental Context. Satellite-based instruments for monitoring the Earth’s atmosphere observe the distribution of many gases and particles of interest. Many common sources of atmospheric gases and particles, such as fires, are geographically widespread and occur over a moderately long period. In contrast, fireworks pollute only a local area and for a brief period, and thus act as an ideal test of satellite instruments.

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1. On the Constitution of the Earth's Atmosphere in Remote Geological Epochs

Proceedings of the Royal Society of Edinburgh ◽

10.1017/s0370164600038074 ◽

1845 ◽

Vol 1 ◽

pp. 165-166

Author(s):

Johnston

Keyword(s):

Carbonic Acid ◽

Mineral Waters ◽

Atmospheric Gases ◽

Earth’S Atmosphere ◽

The Earth ◽

The Subject ◽

Earth's Atmosphere ◽

Absolute Quantity ◽

Considerable Depth

This is the first paper of a promised series on the subject here announced. In the present paper the author endeavours to shew, that in remote epochs the atmosphere was more extensive and heavier than it is now, that it contained a greater absolute quantity of oxygen, and that this quantity has gradually diminished up to our own era, and is probably still undergoing a sensible diminution. His views are founded partly on speculative considerations, of which it is not possible to give a sufficiently circumstantial abridgment, and partly on the evidence of various operations going on at or near the surface of the earth, the tendency of which must, on the whole, apparently be to diminish the quantity and proportion of the oxygen in the atmosphere. In addition to the ordinary and well known causes of deterioration, the author points out a new source of diminution to which his attention has been lately drawn. From experiments made upon the aeriform fluid discharged from the earth during an inundation, and obviously expelled by the water penetrating to a considerable depth, and displacing the gases contained in the soil, he found that this gaseous matter consists of 2.5 per cent, carbonic acid, 12.764 oxygen, and 84.736 nitrogen. Taking this observation in conjunction with many others previously made on the composition of the gaseous discharges in volcanic districts, and the gaseous contents of mineral waters, he infers that a process of oxidation is constantly going on at various depths below the earth's surface, the oxygen for which is in all probability derived by absorption of the atmospheric gases at the surface.

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Observing meteors by creating artificial luminous clouds in the Earth’s atmosphere

Научные труды Института астрономии РАН ◽

10.51194/inasan.2021.6.2.004 ◽

2021 ◽

pp. 52-54

Author(s):

В.А. Леонов ◽

А.М. Пыжов ◽

А.И. Дробыжев

Keyword(s):

Ionization Potential ◽

Radar Observation ◽

New Method ◽

Atmospheric Gases ◽

Meteor Showers ◽

Earth’S Atmosphere ◽

Observation Methods ◽

Meteor Body ◽

Earth's Atmosphere ◽

Theoretical Assessment

В статье дается предварительная теоретическая оценка возможности применения нового способа наблюдения метеоров в атмосфере Земли с помощью искусственных светящихся облаков. При попадании метеоров в такие облака, образованные веществом с потенциалом ионизации в несколько раз меньшем потенциала ионизации атмосферных газов, происходит быстрая ионизация реагента облака за счет термического и ударного воздействия метеорного тела, приводящая к увеличению светимости метеорных следов. Предполагается, что такой эффект будет способствовать увеличению яркости слабых метеоров, находящихся на пороге обнаружения современных телевизионных камер. Это позволит проводить исследования метеоров и метеорных потоков, доступных ранее только радиолокационными методами наблюдения. The article provides a preliminary theoretical assessment of the possibility of using a new method of observing meteors in the Earth’s atmosphere using artificial luminous clouds. When meteors hit such clouds formed by a substance with an ionization potential several times lower than the ionization potential of atmospheric gases, the cloud reagent is rapidly ionized due to the thermal and impact effects of the meteor body, which leads to an increase in the luminosity of meteor tracks. It is assumed that this effect will increase the brightness of weak meteors, which are on the threshold of detection by modern TV cameras. This will make it possible to conduct studies of meteors and meteor showers that were previously available only by radar observation methods.

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