AN INNOVATIVE APPROACH TO MEASURE AEROSOL HYGROSCOPICITY USING SINGLE NEPHELOMETER SET-UP SYSTEM

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F24%3A00601381" target="_blank" >RIV/67985858:_____/24:00601381 - isvavai.cz</a>
Alternative codes found
RIV/86652079:_____/24:00601509
Result on the web
<a href="https://hdl.handle.net/11104/0358538" target="_blank" >https://hdl.handle.net/11104/0358538</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
AN INNOVATIVE APPROACH TO MEASURE AEROSOL HYGROSCOPICITY USING SINGLE NEPHELOMETER SET-UP SYSTEM
Original language description
Hygroscopicity can be defined as the ability of aerosol particles to take up water molecules from the surrounding environment. This property affects the size, refractive index, chemical composition, and optical properties of the particles, as well as the formation and properties of clouds. The dependence of certain types of particles on relative humidity (RH) represents a critical factor in estimating the uncertainty of the direct and indirect effects of aerosols on the climate. One of the conventional methods for measuring aerosol hygroscopicity of aerosols is the observation of changes in light scattering properties with RH using an integrating nephelometer (IN). It is common practice to utilize a setup comprising one IN at dry and another at humidified conditions in parallel or in series. The outcome of such a measurement is the enhancement factor f(RH), defined as the ratio of the scattering coefficient σsp under humidified (>80%) and under dry conditions (<40%). However, the use of multiple instruments in such setups may lead to over- or underestimation of the f(RH). Furthermore, there is a lack of information about aerosol hygroscopic properties at European urban sites.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
PROCEEDINGS OF 23rd Annual Conference of the Czech Aerosol Society OVZDUŠÍ V ČASe
ISBN
978-80-908653-2-7
ISSN
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e-ISSN
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Number of pages
3
Pages from-to
42-44
Publisher name
Czech Aerosol Society
Place of publication
Prague
Event location
Milovy
Event date
Nov 11, 2024
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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