Results 11 to 20 of about 701,769 (305)

Editorial for the Special Issue “Atmospheric Dispersion and Chemistry Models: Advances and Applications”

open access: yesAtmosphere, 2023
Atmospheric dispersion and chemical transport models (CTMs) are a key tool in both atmospheric chemistry and environmental sciences [...]
Daniel Viúdez-Moreiras
doaj   +1 more source

Fumigant emission reductions with TIF warrant regulatory changes

open access: yesCalifornia Agriculture, 2013
With methyl bromide's phase-out, most growers have turned to alternative fumigants, particularly 1,3-dichloropropene (1,3-D) and chloropicrin. These alternatives are tightly regulated because they are classified as toxic air contaminants and volatile ...
Husein Ajwa   +6 more
doaj   +1 more source

Global shockwaves of the Hunga Tonga-Hunga Ha’apai volcano eruption measured at ground stations

open access: yesiScience, 2022
Summary: The eruption of the Tonga volcano created globally propagating spherical shockwaves in the atmosphere. Analyses are done to data from two southern U.S.
Chunyan Li
doaj   +1 more source

A Python interface to the Dutch Atmospheric Large-Eddy Simulation

open access: yesSoftwareX, 2020
We present a Python interface for the Dutch Atmospheric Large Eddy Simulation (DALES), an existing Fortran code for high-resolution, turbulence-resolving simulation of atmospheric physics.
Gijs van den Oord   +6 more
doaj   +1 more source

A new model for lifting condensation levels estimation

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2019
Knowledge of and the ability to predict lifting condensation levels (LCL) is important ingredient in weather predictions, cloud formation, planetary albedo and Earth’s energy balance.
Nihad E Daidzic
doaj   +1 more source

Development of multi-scale indices of human mobility restriction during the COVID-19 based on air quality from local and global NO2 concentration

open access: yesiScience, 2023
Summary: This study investigated whether variability in air quality, especially related to vehicular emissions, during the COVID-19 pandemic could indicate social distancing. Data from in situ measurements and satellite estimates were used.
Larissa Haringer Martins da Silveira   +2 more
doaj   +1 more source

Measurements of atmospheric electricity in the Széchenyi István Geophysical Observatory, Hungary [PDF]

open access: yesHistory of Geo- and Space Sciences, 2020
The Széchenyi István Geophysical Observatory, also known as the Nagycenk Geophysical Observatory (NCK), was established in 1957. It has been the only measurement site in Hungary where observations of various parameters of the atmospheric global electric ...
J. Bór   +11 more
doaj   +1 more source

Examining Unmanned Aerial System Threats & Defenses: A Conceptual Analysis

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2015
The integration of unmanned aerial systems (UAS) into the already complex global aviation system presents new and unique hazards. While many studies have addressed the potential safety concerns of UAS integration, little research has been dedicated to ...
Ryan J Wallace, Jon M. Loffi
doaj   +1 more source

Increased hydropower but with an elevated risk of reservoir operations in India under the warming climate

open access: yesiScience, 2023
Summary: Hydropower is a significant contributor to clean global electricity generation; therefore, it plays a crucial role in climate change mitigation.
Dipesh Singh Chuphal, Vimal Mishra
doaj   +1 more source

Adding value to numerical weather predictions for the aviation industry in South Africa.

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2019
The main objective of this study is to determine whether human forecasters at the main airports of South Africa add value to the raw numerical weather prediction model output when they provide forecast services to the aviation industry.
Quinton Jacobs, Willem A. Landman
doaj   +1 more source

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