Results 21 to 30 of about 174,511 (298)

Saharan dust and ice nuclei over Central Europe [PDF]

, 2010
Surface measurements of aerosol and ice nuclei (IN) at a Central European mountain site during an episode of dust transport from the Sahara are presented.
Barrie, Leonard A., Bingemer, Heinz, Bundke, Ulrich, Ebert, Martin, Haunold, Werner, Klein, Holger, Levin, Zev, Nickovic, Slobodan, Nillius, Björn, Schuetz, Lothar, Weinbruch, Stephan   +10 more
core   +1 more source

Characteristics of Chemical Solutes and Mineral Dust in Ice of the Ablation Area of a Glacier in Tien Shan Mountains, Central Asia

Frontiers in Earth Science, 2022
Diverse microbial communities live on glacial surfaces, with abundances and diversities dictated by the chemical and physical conditions of the supraglacial environment. Chemical solutes and mineral dust on glacial surfaces are generally derived from the
Yunjie Chen, Nozomu Takeuchi, Feiteng Wang, Zhongqin Li   +3 more
doaj   +1 more source

Modelling mineral dust emissions [PDF]

IOP Conference Series: Earth and Environmental Science, 2009
The biogeochemical cycle of mineral dust is of major interest to understand climatic changes. Moreover, these particles can also cause risks for human health and societal activities in regions in the neighbourhoods of arid and semi-arid source areas of dust emission.
Laurent, B., Marticoréna, B., Bergametti, G., Tegen, I., Schepanski, K., Heinold, B.   +5 more
openaire   +2 more sources

Heterogeneous reactions of mineral dust aerosol: implications for tropospheric oxidation capacity [PDF]

Atmospheric Chemistry and Physics, 2017
Heterogeneous reactions of mineral dust aerosol with trace gases in the atmosphere could directly and indirectly affect tropospheric oxidation capacity, in addition to aerosol composition and physicochemical properties.
M. Tang, X. Huang, K. Lu, M. Ge, Y. Li, P. Cheng, T. Zhu, A. Ding, Y. Zhang, S. Gligorovski, W. Song, X. Ding, X. Bi, X. Wang, X. Wang   +14 more
doaj   +1 more source

Nitric acid scavenging by mineral and biomass burning aerosols [PDF]

, 1998
The abundance of gas phase nitric acid in the upper troposphere is overestimated by global chemistry-transport models, especially during the spring and summer seasons.
Chatfield, R B, Dibb, Jack E., Jacobson, M Z, Lin, J S, Singh, H B, Tabazadeh, A, Talbot, R., Thakur, A N, Toon, O Brian   +8 more
core   +2 more sources

The implementation of dust mineralogy in COSMO5.05-MUSCAT [PDF]

Geoscientific Model Development
Mineral dust aerosols are composed of a complex assemblage of various minerals depending on the region in which they originated. Given the different mineral composition of desert dust aerosols, different physicochemical properties and therefore varying ...
S. Gómez Maqueo Anaya, D. Althausen, M. Faust, H. Baars, B. Heinold, J. Hofer, I. Tegen, A. Ansmann, R. Engelmann, A. Skupin, B. Heese, K. Schepanski   +11 more
doaj   +1 more source

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

Atmospheric 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, A. P. Tsimpidi, A. Pozzer, M. Astitha, J. Lelieveld, J. Lelieveld   +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

Frontiers 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, Jules Basse, Mamadou Ndiaye, Hamady Ngansou Sabaly, Arona Diedhiou, Arona Diedhiou, Moctar Camara   +6 more
doaj   +1 more source

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

Atmospheric 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, D. Cholleton, C. Noël, P. Rairoux   +3 more
doaj   +1 more source

Using aircraft measurements to determine the refractive index of Saharan dust during the DODO Experiments [PDF]

, 2010
Much uncertainty in the value of the imaginary part of the refractive index of mineral dust contributes to uncertainty in the radiative effect of mineral dust in the atmosphere.
Formenti, P, Harrison, M. A. J., Highwood, E. J., McConnell, C. L.   +3 more
core   +1 more source