Results 31 to 40 of about 175,462 (300)

Investigating the dependence of mineral dust depolarization on complex refractive index and size with a laboratory polarimeter at 180.0° lidar backscattering angle [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
In this paper, the dependence of the particles' depolarization ratio (PDR) of mineral dust on the complex refractive index and size is for the first time investigated through a laboratory π-polarimeter operating at 180.0∘ backscattering angle and at (355,
A. Miffre   +3 more
doaj   +1 more source

Light scattering and absorption properties of dust particles retrieved from satellite measurements [PDF]

open access: yes, 2008
We use the radiative transfer model and chemistry transport model to improve our retrievals of dust optical properties from satellite measurements. The optical depth and absorbing optical depth of mineral dust can be obtained from our improved retrieval ...
Hu, R-M., Sokhi, R.S.
core   +1 more source

Effects of mineral dust on global atmospheric nitrate concentrations [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
This study assesses the chemical composition and global aerosol load of the major inorganic aerosol components, focusing on mineral dust and aerosol nitrate.
V. A. Karydis   +5 more
doaj   +1 more source

Potential Dust Induced Changes on the Seasonal Variability of Temperature Extremes Over the Sahel: A Regional Climate Modeling Study

open access: yesFrontiers in Earth Science, 2021
The aim of this study is to simulate the impact of mineral dust emissions from the Sahel–Saharan zone on temperature extremes over the Sahel. To achieve this goal, we performed two numerical simulations: one with the standard version of the regional ...
Ibrahima Diba   +6 more
doaj   +1 more source

Aerosol Mineralogical Study Using Laboratory and IASI Measurements: Application to East Asian Deserts

open access: yesRemote Sensing, 2022
East Asia is the second-largest mineral dust source in the world, after the Sahara. When dispersed in the atmosphere, mineral dust can alter the Earth’s radiation budget by changing the atmosphere’s absorption and scattering properties.
Perla Alalam   +4 more
doaj   +1 more source

Long-term (2002–2012) investigation of Saharan dust transport events at Mt. Cimone GAW global station, Italy (2165 m a.s.l.)

open access: yesElementa: Science of the Anthropocene, 2016
Mineral dust transport from North Africa towards the Mediterranean basin and Europe was monitored over an 11-y period (2002–2012) using the continuous observations made at Mt. Cimone WMO/GAW global station (CMN).
Rocco Duchi   +10 more
doaj   +1 more source

Pollution affects Arabian and Saharan dust optical properties in the eastern Mediterranean [PDF]

open access: yesAtmospheric Chemistry and Physics
Uncertainties in the direct radiative effect of mineral dust result from the variability in its optical properties but are also influenced by mixing with anthropogenic aerosols (“pollution”), e.g., black carbon or sulfates.
M. Teri   +16 more
doaj   +1 more source

Dustbuster: a compact impact-ionization time-of-flight mass spectrometer for in situ analysis of cosmic dust [PDF]

open access: yes, 2002
We report on the design and testing of a compact impact-ionization time-of-flight mass spectrometer for analysis of cosmic dust, suitable for use on deep space missions.
Ahrens, Thomas J.   +2 more
core   +1 more source

Understanding Haze: Modeling Size-Resolved Mineral Aerosol from Satellite Remote Sensing

open access: yesRemote Sensing, 2022
Mineral dust aerosols are composed of a complex mixture of silicates, carbonates, oxides, and sulfates. The minerals’ chemical composition and size distribution are vital parameters to evaluate dust environmental impacts.
Nivedita Sanwlani, Reshmi Das
doaj   +1 more source

Estimation of the atmospheric flux of nutrients and trace metals to the Eastern Tropical North Atlantic Ocean [PDF]

open access: yes, 2015
Atmospheric deposition contributes potentially significant amounts of the nutrients iron, nitrogen and phosphorus (via mineral dust and anthropogenic aerosols) to the oligotrophic tropical North Atlantic Ocean.
A. R. Baker   +55 more
core   +1 more source

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