Lightning may be Mother Natures greatest show on Earth, but scientists now know it can produce significant amounts of ozone and other gases that affect air chemistry.
Lightning Has a Big Effect on Regional Pollution
Summertime lightning over the United States increases regional pollution by significant amounts and also over a large portion of the northern hemisphere, surpassing those by human activities. CREDIT: Photograph by M. Garay
The Microlab Satellite and the OTD Lightning Detector
The Optical Transient Detector (OTD), aboard the Microlab satellite, is the worlds first space-based sensor capable of detecting and locating lightning events in the daytime as well as during the nighttime with high detection efficiency. It was designed and built at Marshall Space Flight Center (MSFC).
Researcher Renyi Zhang of Texas A&M University helped lead a study on the impact of lightning, and the results are surprising: Lightning can be responsible for as much as 90 percent of the nitrogen oxides in the summer and at the same time increase ozone levels as much as 30 percent in the free troposphere, the area that extends 3-8 miles above the Earths surface.
The amount of ozone and nitrogen oxides that lightning creates is greater than those created by human activities in that level of the atmosphere, the study shows.
Renyi Zhang | EurekAlert!
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In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.
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Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
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An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.
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