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Environmental News For The Week Ending 20June 2019

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Brookhaven Lab Interns Study Airborne COVID-19 Spread | US Department of Energy Science News


Interns contributed to aerosol modeling research to better understand airborne virus
DOE/Brookhaven National Laboratory
When Cathrine Hamilton and Alison Robey, fall interns at the U.S. Department of Energy s Brookhaven National Laboratory, first signed on to collaborate with their mentor Laura Fierce, an associate scientist in the Environmental and Climate Sciences Department, they didn t imagine they would be contributing to widespread research tackling the COVID-19 pandemic.
Instead of collaborating on climate models, the interns supported the development of simulations in order to study the probability of infection by tiny virus particles traveling in the air.
The research, which is among several COVID-19-focused efforts at Brookhaven Lab, aims to connect the tools of mathematical modeling with aerosol expertise and the expanding body of coronavirus literature. The goal is to provide more accurate insights on the effects of particle size, evolution, and behav ....

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How Clouds Make Something Out of Nothing


 
Results from a study of clouds and aerosols conducted in the Azores revealed that new particles can seed the formation of clouds in the marine boundary layer the atmosphere up to about a kilometer above Earth s surface even over the open ocean, where the concentration of precursor gases was expected to be low. Credit: U.S. Department of Energy Atmospheric Radiation Measurement (ARM) user facility.
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New results from an atmospheric study over the Eastern North Atlantic reveal that tiny aerosol particles that seed the formation of clouds can form out of next to nothingness over the open ocean. This “new particle formation” occurs when sunlight reacts with molecules of trace gases in the marine boundary layer, the atmosphere within about the first kilometer above Earth’s surface. The findings, published in the journal Nature Communications, will improve how aerosols and clouds are represented in models that describe Earth’s climate so sci ....

Yang Wang , Chongai Kuang , Jian Wang , Guangjie Zheng , Nature Communications , Office Of Science Atmospheric Radiation Measurement , Climate Sciences Department , Washington University In St , Eastern North Atlantic , Brookhaven National , Cloud Experiments , Washington University , Graciosa Island , Atmospheric Radiation Measurement , யாங் வாங் , ஜியான் வாங் , இயற்கை தகவல்தொடர்புகள் , அலுவலகம் ஆஃப் அறிவியல் வளிமண்டலம் கதிர்வீச்சு அளவீட்டு , காலநிலை அறிவியல் துறை , வாஷிங்டன் பல்கலைக்கழகம் இல் ஸ்டம்ப் , கிழக்கு வடக்கு அட்லாண்டிக் , ப்ரூக்ஹவன் தேசிய , மேகம் சோதனைகள் , வாஷிங்டன் பல்கலைக்கழகம் , கிரேசியோசா தீவு , வளிமண்டலம் கதிர்வீச்சு அளவீட்டு ,

Trace Gases Can Be Formed From Aerosol Particles That Seed Clouds


Close
A study conducted in the Azores on clouds and aerosols has found that new particles can seed the information from the marine boundary layer.
That is the atmosphere up to about one kilometer above the earth s surface. Even on the open ocean where precursor gas concentration was expected to be low.  
(Photo : Magda Ehlers)
The Study
Tiny aerosol particles that seed the information of clouds can form out of nothing over the open ocean, a new atmospheric study over the Eastern North Atlantic has revealed.
The formation of the new particles occurs when sunlight reacts with molecules of trace gases in the marine boundary layer. That is the atmosphere within the first kilometer above the earth s surface.  ....

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