Tiny ultraviolet polarimeter for earth stratosphere from space investigation

Nevodovskyi, P. V.; Morozhenko, O. V.; Vidmachenko, A. P.; Івахів, Орест; Geraimchuk, Мykhaylo; Zbrutsky, Aleksandr

doi:10.1109/idaacs.2015.7340695

Cited by 10 publications

(10 citation statements)

References 3 publications

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“…For substantially larger -values, the DLP of the sky gas component decreases owing to the growth of the depolarizing action from multiple scattering [26]. However, the sky measurements at the zenith making no use of light filters demonstrate that, on different days, the values of ( ) amount to only 30-70% at the same phase angles [27,28], which is much less than the DLP value calculated theoretically for a purely gaseous atmosphere. This is a result of the light scattering decrease at aerosol particles, which are always available in the Earth's atmosphere [29].…”

Section: General Definitions and Model Parametersmentioning

confidence: 76%

Метод Відновлення Параметрів Багатомодової Аерозольної Складової В Атмосфері За Даними Спектральних Поляриметричних Вимірів

Ovsak

Vashchenko²,

Vidmachenko

et al. 2021

Ukr. J. Phys.

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Запропоновано метод виявлення основних мод аерозолю в атмосферному стовпi й вiдновлення ймовiрних мiкрофiзичних параметрiв його частинок за даними вимiрювань спектральних фазових залежностей ступеня лiнiйної поляризацiї неба. Виконана тестова обробка даних вимiрювань поляризацiї неба над позицiєю ГАО (Київ, Голосiїв, Україна). У мiськiй атмосферi виявлено двi основнi аерозольнi моди: грубодисперсну й дрiбнодисперсну. Вiдновлено мiкрофiзичнi параметри цих мод для нормально-логарифмiчної функцiї розподiлу частинок за розмiрами. У грубодисперсної моди дiйсна частина показника заломлення nr = 1,45 + 0,02/ − 0,01, середньо-геометричний радiус частинок r0 = 6,7 +2,4/−1,4 мкм, дисперсiя q2 = 0,12 +0,01/−0,02, ваговий коефiцiєнт цiєї моди в аерозольнiй сумiшi k1 = 0,22. У дрiбнодисперсної моди nr = 1,45 ±0,01, r0 = 0,11 ± 0,005 мкм i q2 = 0,1 ± 0,05. Спектральнi величини вiдносного внеску газового розсiяння (на дату спостережень): B(578 нм) = 0,45 i B(390 нм) = 0,64.

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Section: General Definitions and Model Parametersmentioning

confidence: 76%

Метод Відновлення Параметрів Багатомодової Аерозольної Складової В Атмосфері За Даними Спектральних Поляриметричних Вимірів

Ovsak

Vashchenko²,

Vidmachenko

et al. 2021

Ukr. J. Phys.

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“…The Main Astronomical Observatory (MAO) of the National Academy of Sciences of Ukraine (NASU) proposed in 2004 to conduct a space experiment to study the physical characteristics of the stratospheric aerosol from the spacecraft [21]. For this a working model of an on-board ultraviolet polarimeter (UVP) was developed and created together with Igor Sikorsky KPI and Lviv Polytechnic National University [25,26]. This optoelectronic device can receive polarimetric data during remote sensing of a stratospheric aerosol from a spacecraft.…”

Section: Device and Research Techniquementioning

confidence: 99%

“…This model of UVP is close to the flight model and proved the possibility of setting up a space experiment to study the stratospheric aerosol. A special stand has been developed for setting up and studying the UVP and its individual blocks (Figure 3) [25]. With the help of the stand the wide range of the radiation receiver -the photomultiplier R1893 of the HAMAMATSU companystudies were carried out.…”

Section: Figure 1: the Onboard Uvp Devicementioning

confidence: 99%

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Passive Remote Study of the Aerosol in the Upper Atmosphere of the Earth

Zbrutsky¹,

Nevodovskyi²,

Vidmachenko³

et al. 2019

J Ear Environ Sci Res

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Climate changes on planet Earth are mainly caused by disturbances in the energy balance of the Sun-Earth system. This process is the result of both natural changes in nature and the influence of anthropogenic factors. The combined effect of these factors can lead to threatening phenomena for mankind - a decrease in the power of the ozone layer, the formation of “ozone holes” and global warming on the planet and other disasters. The study of the causes of these factors and the determination of their relative contribution is one of the pressing problems of our time.

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“…A lot of polarimetric experimental projects in the ultraviolet (UV) sunlight spectral region were repeatedly proposed for stratospheric aerosol investigation by the Main Astronomy Observatory of the NAS of Ukraine (see, for example, [1,2]).…”

Section: Introductionmentioning

confidence: 99%

Earth’s Stratospheric Aerosol Parameters Reconstruction from Polarimetric Measurements of the Sky

Nevodovskyi¹,

Ovsak²,

Vidmachenko³

et al. 2021

IJC

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Earth’s climate changes are the result of natural changes in the energy balance of Sun irradiation and influence of anthropogenic factors on the variations of ozone layer thickness and stratospheric aerosol abundance. It is developed a miniature polarimeter for satellite polarimetric experiments in the ultraviolet region of the sunlight spectrum. The main task of this device is to the obtain an information on the stratospheric aerosol physical properties. We tested this polarimeter on a bench specially designed and manufactured as well. It is possible to measure by it the phase dependences of the degree of linear polarization (DLP) of solar radiation scattered by the Earth’s atmosphere. A set of special computer programs was developed for comparing the spectral polarimetric measurements DLP data of cloudless sky with model calculations of DLP for the artificial gas-aerosol medium. Thus, the prototype of satellite polarimeter as well as special computer programs make it possible to study the Earth’s atmosphere aerosol physical characteristics.

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Tiny ultraviolet polarimeter for earth stratosphere from space investigation

Cited by 10 publications

References 3 publications

Метод Відновлення Параметрів Багатомодової Аерозольної Складової В Атмосфері За Даними Спектральних Поляриметричних Вимірів

Метод Відновлення Параметрів Багатомодової Аерозольної Складової В Атмосфері За Даними Спектральних Поляриметричних Вимірів

Passive Remote Study of the Aerosol in the Upper Atmosphere of the Earth

Earth’s Stratospheric Aerosol Parameters Reconstruction from Polarimetric Measurements of the Sky

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