Results 21 to 30 of about 99,126 (309)

Modelling the chemically aged and mixed aerosols over the eastern central Atlantic Ocean – potential impacts [PDF]

Atmospheric Chemistry and Physics, 2010
Detailed information on the chemical and physical properties of aerosols is important for assessing their role in air quality and climate. This work explores the origin and fate of continental aerosols transported over the Central Atlantic Ocean, in ...
M. Astitha, G. Kallos, C. Spyrou, W. O'Hirok, J. Lelieveld, H. A. C. Denier van der Gon   +5 more
doaj   +3 more sources

Dust Storm Influence on Gravity Wave Activity in the Nightside Thermosphere of Mars [PDF]

Journal of Geophysical Research: Planets
AbstractGravity waves in the thermosphere of Mars are complex and variable phenomena capable of causing significant changes to processes in the upper atmosphere of Mars, which can affect atmospheric escape. The objective of this study is to determine how dust storm activity, variation in Local Solar Time (LST), and seasonal changes affect thermospheric
Nicholas Brackney Pickett, M. Felici, Majd Mayyasi, Paul Withers, M. Benna, Shannon Curry   +5 more
  +6 more sources

Streaks on martian slopes are dry [PDF]

Nature Communications
Slope streaks are dark albedo features on martian slopes that form spontaneously and fade over years to decades. Along with seasonally recurring slope lineae, streak formation has been attributed to aqueous processes, implying the presence of transient ...
Valentin Tertius Bickel, Adomas Valantinas   +1 more
doaj   +2 more sources

Orbit-Spin Coupling Torques and Martian Dust Storm Activity in MY34 and MY 35

, 2020
One global-scale dust storm and two larger-than-average regional-scale dust storms have been recorded by spacecraft observations within the dust seasons of the past two Mars years.
J. H. Shirley, D. M. Kass, A. Kleinböhl
openalex   +2 more sources

Spatio-Temporal Trends of Dust Storms Drivers and Their Role in the Decline of Dust Activity over North Africa [PDF]

Journal of Geoscience and Environment Protection
K. L. Yeo, Fidèle Yoroba, Ayodeji Oluleye   +2 more
openalex   +2 more sources

Dust storm activity in Tianwen-1 mission’s tentative landing area (Chryse) ： MGS-MOC observations from Mars year 24-28 [PDF]

, 2020
Abstract Dust storms, observed in all seasons, are among the most momentous Mars atmosphere activities. The Entry-Descent-Landing (EDL) activity of a Martian landing mission is influenced by local atmospheric conditions, especially the dust storm activity probability.
Bo Li, Peiwen Yao, Jiang Zhang, Zongyu Yue, Chenfan Li, Biao Wang, Xiaohui Fu, Zongcheng Ling, Shengbo Chen   +8 more
openalex   +2 more sources

Numerical modeling of orbit-spin coupling accelerations in a Mars general circulation model: Implications for global dust storm activity [PDF]

Planetary and Space Science, 2017
We employ the MarsWRF general circulation model (GCM) to test the predictions of a new physical hypothesis: a weak coupling of the orbital and rotational angular momenta of extended bodies is predicted to give rise to cycles of intensification and relaxation of circulatory flows within atmospheres.
M. A. Mischna, J. H. Shirley
openalex   +4 more sources

An objective method of forecasting pre-monsoon thunderstorm dust storm activity over Delhi and neighbourhood

MAUSAM, 1972
An attempt was made to provide an objective aid for forecasting of thunderstorm/dust storm in pre-monsoon season over Delhi and neighbourhood. Relationships of a number of meteorological parameters to subsequent convective activity were determined and the five parameters which showed the strongest relation ships were combined by graphical correlation ...
SURENDRA KUMAR
openalex   +3 more sources

Recent activities for the dust storm studies in Central Asia [PDF]

E3S Web of Conferences
This paper provides an overview of state-of-the-art technologies used to detect and predict sand and dust storms (SDS). SDS events typically occur when strong winds transport dry sand and dust particles from the ground. Several technologies have been developed to detect and predict SDS, with the goal of mitigating their impact on the natural ...
Dmitry Belikov, Natella Rakhmatova, Bakhriddin Nishonov, Lyudmila Shardakova   +3 more
openalex   +3 more sources

Radio Emissions from Electrical Activity in Martian Dust Storms

, 2020
<p>Dust storms on Mars are predicted to be capable of producing electrostatic fields and discharges, even larger than those in dust storms on Earth.  There are three key elements in the characterization of Martian electrostatic discharges: dependence on Martian environmental conditions, event rate, and the strength ...
Walid A. Majid
openalex   +2 more sources