نتایج جستجو برای: dust storm
تعداد نتایج: 58433 فیلتر نتایج به سال:
Windblown dust aerosol plays an important role in marine ecosystems once they are deposited and dissolved. At present, methods for estimating the deposition flux are mainly limited to direct measurements or model outputs. Additionally, satellite remote sensing was often used to estimate the integral dust column concentration (DCC). In this paper, an algorithm is developed to estimate the mass d...
Estimating the influence of dust aerosol on clouds, especially deep convective clouds which is closely related to heavy precipitation, still has large uncertainties due lack adequate direct measurements. In this study, a typical storm along with thunderstorm (referred dust-rain storm), occurred in Northwest India May 2, 2018, was selected explore possible effects cloud by combining series satel...
A comprehensive Mars Dust Activity Database (MDAD) over 8 years (MY 24, L s = 150°to MY 32, 171°) is compiled from Daily Global Maps. total of 14,974 dust storm instances are cataloged with area > 10 5 km 2 that visually distinguishable the surface. instance identified as a member multiple sols if movement can be tracked. sequences collections members have coherent trajectory their origination ...
This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract The formation and propagation of density currents are well studied processes in fluid dynamics with many applications to other science fields. In the atmosphere, density currents are usually meso-β/γ mechanisms and ar...
Currently dust storms are among the most prevalent global environmental issues.They early warning indicators for desertification and climate change. The study intends toanalyse event in Pakistan using normalized detection index (NDDI), brightness temperature(BT) MODIS data of aerosol optical depth (AOD), deep blue angstrom exponent (AE), aerosolindex (AI) HYSPLIT mass trajectory methods. It als...
Legal immigrants: invasion of alien microbial communities during winter occurring desert dust storms
BACKGROUND A critical aspect regarding the global dispersion of pathogenic microorganisms is associated with atmospheric movement of soil particles. Especially, desert dust storms can transport alien microorganisms over continental scales and can deposit them in sensitive sink habitats. In winter 2014, the largest ever recorded Saharan dust event in Italy was efficiently deposited on the Dolomi...
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