Results 11 to 20 of about 148,572 (266)

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

Demonstrated Aeolus Benefits in Atmospheric Sciences

open access: yes2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
We highlight some of the scientific benefits of the Aeolus Doppler Wind Lidar mission since its launch in August 2018. Its scientific objectives are to improve weather forecasts and to advance the understanding of atmospheric dynamics and its interaction with the atmospheric energy and water cycle.
Rennie, Michael   +11 more
openaire   +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

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

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

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

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

Atmospheric blockages as trigger of environmental contingencies in Mexico City

open access: yesHeliyon, 2019
Atmospheric pollution in cities is due to several human factors, for instance the number of cars in circulation, fuel efficiency and industrial waste, as well as orographic and meteorological conditions that determine air circulation. Ozone contingencies
Rafael Silva-Quiroz   +4 more
doaj   +1 more source

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