Aerosols are tiny particles suspended in the air. Most occur naturally, originating from volcanoes, dust storms, forest and grassland fires, living vegetation, and sea spray (Figure 1). Human activities, such as the burning of fossil fuels and the alteration of natural surface cover, also genera...
The rationale for reflective aerosols is basically simple. “After all,” the Massachusetts Institute of Technology explains in a statement,“volcanoes do essentially the same thing, albeit in short, dramatic bursts: When a Vesuvius erupts, it blasts fine ash into the atmosphere, where the particle...
Aerosols impact human and environmental health as well as global climate. In this presentation I will aim to summarize the state of the science of atmospheric chemistry research related to particulate matter (PM) and the challenges ahead. The key questions in aerosol research are linked to ...
The CERES project merges observations from multiple data sources to produce data products for the science community. CERES data products are used to understand how clouds and aerosols influence Earth’s energy budget from the top of the atmosphere down to the surface; to understand the trends and ...
We present an estimate of the yearly flux of total and black carbon aerosols emitted by savanna biomass burning in Africa from satellite data and ground-ba... C.,Liousse,F.,... - 《Journal of Geophysical Research》 被引量: 571发表: 1997年 Mathematics education for young children: What it...
In science fiction, 10 秒前 Traffic safety experts predict that the installation of newly designed air bags in all cars in the United States would reduce the average number of fatalities per traffic accident by 30 percent. In order to save lives, the Department of Transportation (DOT) is ...
This paper reviews the processes that control the production, transportation and deposition of aerosols and examines how these parameters affect the atmosp... IS Cole,NS Azmat,A Kanta,... - 《International Materials Reviews》 被引量: 75发表: 2009年 What controls the spatial distribution of the...
The COVID-19 pandemic has revived a decades-old debate about how respiratory diseases travel—which affects the safety practices experts recommend.
The transmission mechanism of the COVID-19 pathogen is of great concern. The experimental studies onSARS-CoV-2 show that environmental spread is possible as the pathogen remains contagious in aerosols (<5 μm) for hours and up to days on the fomite and surfaces [14]. Morawska and Cao [15...
As the satellite passes over the dune field (gray region), the CALIPSO (green line) scan of the atmosphere detects high backscatter β from aerosols in the mixed layer relative to the free atmosphere above (blue map, 5-km horizontal resolution). The mean difference (red line) of the ...