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

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.

scholarly journals 21. The separation of small particles from meteor bodies, and its influence on some parameters of meteors

1968 ◽  
Vol 33 ◽  
pp. 207-216 ◽  
Author(s):  
A. N. Simonenko
Keyword(s):  
A Priori ◽  
Small Particles ◽  
Earth’S Atmosphere ◽  
Close Proximity ◽  
Meteor Body ◽  
Earth's Atmosphere

The separation of very small particles from meteor bodies as a part of the process of their ablation in the Earth's atmosphere is assumed by many investigators. But when the particle is small relative to the meteor body the path of the particle is a priori thought to be small relative to the length of the meteor path, i.e. the particle is expected to evaporate in close proximity to the point of separation. This assumption is not acceptable after McCrosky's work (1958) that has shown for one particular case the small particles (m = 10−5−10−6 g) go a long path before their mass is exhausted. The assumption made until now has caused incorrect conclusions, e.g. the luminosity at any point of the meteor path is proportional to the mass ablated from the meteor body at that point (Kramer, 1965).

Firework Emissions for Satellite Validation?

2005 ◽  
Vol 2 (2) ◽  
pp. 94 ◽  
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.

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

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.

scholarly journals The Mexican Meteor Network: A Preliminary Proposal

2016 ◽  
Vol 55 (1) ◽  
Author(s):  
Guadalupe Cordero-Tercero ◽  
Fernando Velázquez-Villegas ◽  
Carlos Francisco Vázquez-Hernández ◽  
José Luis Ramírez-Cruz ◽  
Alejandro Arévalo-Vieyra ◽  
...  
Keyword(s):  
Bird Migration ◽  
Meteor Showers ◽  
Earth’S Atmosphere ◽  
Planetary Geology ◽  
Cometary Material ◽  
Atmosphere Interaction ◽  
Earth's Atmosphere ◽  
Social Importance ◽  
The Impact

The study of asteroidal and cometary material entering into Earth’s atmosphere has scientific and social importance. The observation and study of the impact of meteoroids with our planet is a way of studying geophysics and planetary geology without spaceships. This article describes the progress of the installation of the Mexican Meteor Network (Citlalin Tlamina). At medium and long term, the aim of this network is to cover the entire national territory with stations that allow us to record the entry of meteoroids into Earth’s atmosphere. This seeks to: a) study the meteoroid-atmosphere interaction, b) determine impactor’s physical properties; c) analyze flows and Radiant deviations of known meteor showers, d) find or ratify new meteor showers; e) recover and study meteorites, f) study the interaction of the shock wave with the ground by analyzing seismograms; g) report people in real time (or near) the occurrence of fireballs and fragmentation of meteoroids in the atmosphere, avoiding the fear of this phenomenon and provide support for Civil Protection, h) find areas of opportunity that can use the images captured by the cameras (weather, bird migration, etc.). In this paper, it is shown the prototype of the base to house the cameras whose purpose is to protect them from the environment, prevent condensation within the container and keep the cameras below 25 °C.

scholarly journals Airborne Laser Spectroscopy System Can Map Atmospheric Gases

Eos ◽  
2017 ◽  
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.

scholarly journals Daedalus: a low-flying spacecraft for in situ exploration of the lower thermosphere–ionosphere

2020 ◽  
Vol 9 (1) ◽  
pp. 153-191 ◽  
Author(s):  
Theodoros E. Sarris ◽  
Elsayed R. Talaat ◽  
Minna Palmroth ◽  
Iannis Dandouras ◽  
Errico Armandillo ◽  
...  
Keyword(s):  
Lower Thermosphere ◽  
European Space Agency ◽  
Upper Atmosphere ◽  
Mission Design ◽  
Earth’S Atmosphere ◽  
Space Agency ◽  
Observation Methods ◽  
Precipitation Estimates ◽  
Earth's Atmosphere

Abstract. The Daedalus mission has been proposed to the European Space Agency (ESA) in response to the call for ideas for the Earth Observation program's 10th Earth Explorer. It was selected in 2018 as one of three candidates for a phase-0 feasibility study. The goal of the mission is to quantify the key electrodynamic processes that determine the structure and composition of the upper atmosphere, the gateway between the Earth's atmosphere and space. An innovative preliminary mission design allows Daedalus to access electrodynamics processes down to altitudes of 150 km and below. Daedalus will perform in situ measurements of plasma density and temperature, ion drift, neutral density and wind, ion and neutral composition, electric and magnetic fields, and precipitating particles. These measurements will unambiguously quantify the amount of energy deposited in the upper atmosphere during active and quiet geomagnetic times via Joule heating and energetic particle precipitation, estimates of which currently vary by orders of magnitude between models and observation methods. An innovation of the Daedalus preliminary mission concept is that it includes the release of subsatellites at low altitudes: combined with the main spacecraft, these subsatellites will provide multipoint measurements throughout the lower thermosphere–ionosphere (LTI) region, down to altitudes below 120 km, in the heart of the most under-explored region in the Earth's atmosphere. This paper describes Daedalus as originally proposed to the ESA.

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