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Atmospheric Current Events, Atmospheric News Articles.
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Why does El Niño decay faster than La Niña?
Generally, El Niño tends to turn into a La Niña event in the following June-July after its mature phase; however, the negative sea surface temperature anomaly (SSTAs) associated with La Niña events can persist for more than one year after peaking, resulting in a longer duration than that of El Niño. Scientists explain why El Niño decay faster than La Niña. (2019-08-08)

Explaining the methane mystery
Scientists have explained why atmospheric levels of the greenhouse gas methane have stabilized in recent years, but warn that increases could resume in the near future. (2006-09-27)

Groundbreaking Canada-US study proves link between emissions and mercury pollution in fish
A Canada-US study to appear in the Proceedings of the National Academy of Sciences proves mercury emissions will end up in fish in as little as three years. It concluded if mercury emissions from industry were cut now, the amount showing up in fish would begin to go down within a decade. Co-author Vincent St. Louis of the University of Alberta says this adds important science to the political debate over emission reductions. (2007-09-17)

Fire aerosols decrease global terrestrial ecosystem productivity through changing climate
Cooling, drying, and light attenuation are major impacts of fire aerosols on the global terrestrial ecosystem productivity. (2020-05-20)

Scientists obtain new data on the weather 10,000 years ago from sediments of a lake in Sierra Nevada
Scientists have found evidence of atmospheric dust from the Sahara in the depths of the Rio Seco lake, 3,020 meters above sea level, accumulated over the last 11,000 years. (2014-09-02)

Meteorologists Wyngaard, Thompson receive high honors
The American Meteorological Society has honored two Penn Staterts -- John C. Wyngaard, professor emeritus of meteorology, and Anne M. Thompson, professor of meteorology -- with top awards. (2011-11-23)

New journal serves as an interface of statistics, atmospheric and ocean sciences
A new journal -- Advances in Statistical Climatology, Meteorology and Oceanography -- gives statisticians and researchers specializing in the atmospheric and ocean sciences an outlet to publish the details of their statistical and mathematical developments, which will effectively lead to improved models and methods for these fields. (2014-12-05)

ESA to host Atmospheric Science Conference
ESA will hold a five-day Europhysics Conference at its ESRIN facilities in Frascati, Italy, from 8-12 May 2006, for data users, scientists and students working in the field of remote sensing of the atmosphere. (2006-05-05)

Equatorial winds ripple down to Antarctica
A CIRES-led team has uncovered a critical connection between winds at Earth's equator and atmospheric waves 6,000 miles away at the South Pole. The team has found, for the first time, evidence of a Quasi-Biennial Oscillation (QBO) -- an atmospheric circulation pattern that originates at the equator--at McMurdo, Antarctica. (2020-08-17)

Decrease in fossil-fuel CO2 emissions due to COVID-19 detected by atmospheric observations
Atmospheric observations at Hateruma Island, Japan, successfully detected the decrease in fossil-fuel CO2 emissions in China associated with the COVID-19 outbreak. The weather in Hateruma island is frequently influenced by the northwest monsoon travelling over China, which carries the emission signals of air pollutants. The observed ratios of CO2 and CH4 variabilities showed a significant decrease during February-March 2020, corresponding to about a 30% decrease in China's fossil-fuel CO2 emissions, according to a chemistry-transport model simulation. (2020-11-06)

This week from AGU: Tundra carbon, young atmospheric scientists, Mexico, & 3 new papers
Arctic tundra stores carbon during the summer and releases some of it during the winter. But a new study shows that carbon released during the winter now outweighs the summertime gains, resulting in a net loss of carbon to the atmosphere. (2016-02-17)

New nitrogen products are in the air
A nifty move with nitrogen has brought the world one step closer to creating a range of useful products -- from dyes to pharmaceuticals -- out of thin air. (2020-08-12)

Study explores atmospheric impact of declining Arctic sea ice
New research explores the impact of ice free seas on the planet's atmospheric circulation. (2013-05-28)

Improving weather forecasting with a new IASI channel selection method
With the advent of satellite observation techniques and improvements in data assimilation schemes, the initial state in an NWP (numerical weather prediction) model has become more realistic, which is fast becoming the most vital part in the process. Furthermore, among the many available satellite observations, infrared hyperspectral measurements are known to have the greatest impact on weather forecasting. an attempt was made to select hyperspectral sounder IASI channels from the 314 channels provided by EUMETSAT for data assimilation in the UK Met Office (2017-09-26)

Future aerosol emission reductions will worsen atmospheric diffusion conditions in eastern China
The climate effects induced by aerosol reduction plays a leading role in the anticyclone change in eastern China. (2020-04-13)

A bewildering form of dune on Mars
Researchers have discovered a type of dune on Mars intermediate in size between tiny ripples and wavier dunes, and unlike anything seen on Earth. (2016-06-30)

Novel theory of climate dynamics: Three-pattern decomposition of global atmospheric circulation
Due to the lack of a complete theoretical system for climate prediction, the forecasting of drought and flood in summer of China has always been a major scientific problem for meteorologists. A recent study has made up for this very shortage and has offered new opportunities in improving the prediction accuracy of major climate events in China and even in the world. This work was published in SCIENCE CHINA: Earth Sciences. (2020-07-23)

Cutting carbon dioxide helps prevent drying
Recent climate modeling has shown that reducing the concentration of carbon dioxide in the atmosphere would give the Earth a wetter climate in the short term. New research from Carnegie Global Ecology scientists Long Cao and Ken Caldeira offers a novel explanation for why climates are wetter when atmospheric carbon dioxide (CO2) concentrations are decreasing. Their findings show that cutting carbon dioxide concentrations could help prevent droughts caused by global warming. (2011-03-24)

Carbon cycling was much smaller during last ice age than in today's climate
A reconstruction of plants' productivity and the amount of carbon stored in the ocean and terrestrial biosphere at the last ice age is published today in Nature Geoscience. The research by an international team of scientists greatly increases our understanding of natural carbon cycle dynamics. (2011-11-20)

Cloud simulations get a dose of realism
A focus on the fundamental physics of cloud formation leads to highly realistic simulations of different types of clouds. (2021-02-15)

Study reveals the atmospheric footprint of global warming hiatus
LIu and Zhou investigated the atmospheric anomalous features during the global warming hiatus period (1998-2013). They show evidences that the global mean tropospheric temperature also experienced a hiatus or pause. (2017-03-03)

New study detects ringing of the global atmosphere
A ringing bell vibrates simultaneously at a low-pitched fundamental tone and at many higher-pitched overtones, producing a pleasant musical sound. A recent study, just published in the Journal of the Atmospheric Sciences by scientists at Kyoto University and the University of Hawai'i at Mānoa, shows that the Earth's entire atmosphere vibrates in an analogous manner, in a striking confirmation of theories developed by physicists over the last two centuries.   (2020-07-07)

How atmospheric rivers form
A new study, published in the journal Chaos, suggests that unusually persistent spatial structures that self-assemble high in the atmosphere serve as 'tracer patterns' around which atmospheric rivers grow. Based on simulations using real weather data in the Atlantic Ocean, the work was focused specifically on the transport of water from the Caribbean to the Iberian Peninsula, but it suggests a more general way to study the transport of tropical water vapor globally. (2015-06-09)

An unexpected outcome of atmospheric CO2 enrichment
Mycorrhizae help plants acquire soil nutrients but also drain substantial carbon from plants. Whether mycorrhizae help or hinder plant growth depends upon the balance between nutrient benefits and carbon costs. The forthcoming issue of Ecology Letters demonstrates that enrichment of atmospheric CO2 and soil N interacts with mycorrhizae to structure the species composition of experimental plant communities. This study emphasizes the need to consider mycorrhizal interactions when predicting plant community responses to global change factors. (2003-05-22)

UM Rosenstiel School professor named Fellow of American Meteorological Society
University of Miami professor, Bruce Albrecht, Ph.D., has been named one of 29 new Fellows of the American Meteorological Society, the nation's leading professional society for scientists in the atmospheric and related sciences. (2010-02-24)

Isotopic makeup of atmospheric sulfate and nitrate
Scientists at Tokyo Institute of Technology and Université Grenoble Alpes, CNRS have conducted research in Antarctica to elucidate the chemical pathways that contribute to the formation of atmospheric sulfate and nitrate. They were able to identify seasonal changes in Δ17O values of sulfate and nitrate, and confirm that these are due not to variations in Δ17O values of the precursor ozone but to changes in atmospheric oxidation chemistry. (2017-03-23)

University of Miami study rethinks the ocean's role in Pacific climate
University of Miami researchers have climate scientists rethinking a commonly held theory about the ocean's role in the global climate system. The new findings can aid scientists in better understanding and predicting changes in the Pacific climate and its impacts around the globe. (2011-11-14)

Researchers develop new instrument to monitor atmospheric mercury
Researchers at the University of Miami Rosenstiel School of Marine and Atmospheric Science developed and tested a new sensor to detect ambient levels of mercury in the atmosphere. (2015-01-30)

Scientists take off on historic mission to measure greenhouse gases that have an impact on climate
HIAPER, one of the nation's most advanced research aircraft, is scheduled to embark on an historic mission spanning the globe from the Arctic to the Antarctic. (2009-01-07)

Journal highlights Arctic sea ice study by UM professor
New research by University of Montana bioclimatology Assistant Professor Ashley Ballantyne models the influence of Arctic sea ice on Arctic temperatures during the Pliocene era. His research was published in the Research Highlight section of the July issue of Nature Geoscience. The full paper will be published in Palaeogeography, Palaeoclimatology, Palaeoecology: An International Journal for the Geosciences. (2013-07-09)

Global halt to major greenhouse gas growth
The greenhouse gas, methane, has stopped growing in the global background atmosphere and could begin to decrease, CSIRO researchers announced today. (2003-11-25)

Does global warming lead to a change in upper atmospheric transport?
Most atmospheric models predict that the rate of transport of air from the troposphere to the above lying stratosphere should be increasing due to climate change. Surprisingly, an international group of researchers has now found that this does not seem to be happening. On the contrary, it seems that the air air masses are moving more slowly than predicted. This could also imply that recovery of the ozone layer may be somewhat slower than predicted by state-of-the-art atmospheric climate models. (2008-12-15)

Fossilised plant leaf wax provides new tool for understanding ancient climates
New research, published in Scientific Reports, has outlined a new methodology for estimating ancient atmospheric water content based on fossil plant leaf waxes. (2018-03-02)

Commercial airliners reveal three-dimensional distribution of atmospheric CO2 over Asia Pacific
Ten years of commercial airliner-based measurements uniquely revealed three-dimensional distribution of atmospheric CO2 and its seasonality over Asia Pacific. Asia has been only sparsely monitored for atmospheric CO2, despite the growing importance of the region in the global carbon cycle. The remarkable feature of CO2 over Asia is depleted CO2 concentrations confined in the Asian summer monsoon anticyclone at the cruising altitude (approximately 10 km) imprinted by strong CO2 uptake by vegetation in South Asia. (2018-11-06)

Thermal tides cause Venus' atmosphere to rotate far faster than its surface
By tracking the thick clouds of Venus' rapidly rotating atmosphere, researchers have gained new insight into the dynamic forces that drive atmospheric super-rotation - a little-understood phenomenon in which an atmosphere rotates much faster than the solid planetary body below. (2020-04-23)

Weather patterns' influence on frost timing
The frost-free season in North America is approximately 10 days longer now than it was a century ago. In a new study, published today in Nature Communications, researchers from the University of Utah and the US Geological Survey parse the factors contributing to the timing of frost in the United States. Atmospheric circulation patterns, they found, were the dominant influence on frost timing, although the trend of globally warming temperatures played a part as well. (2017-05-23)

Atmospheric tidal waves maintain Venus' super-rotation
An international research team led by Takeshi Horinouchi of Hokkaido University has revealed that the 'super-rotation' on Venus is maintained near the equator by atmospheric tidal waves formed from solar heating on the planet's dayside and cooling on its nightside. The study was published online in Science on April 23. (2020-04-23)

Studying soil to predict the future of earth's atmosphere
A new study by researchers at BYU, Duke and the USDA finds that soil plays an important role in controlling the planet's atmospheric future. What they found, published in the current issue of Nature Climate Change, is that the interaction between plants and soils controls how ecosystems respond to rising levels of CO2 in the atmosphere. (2012-06-15)

Reliable tropical weather pattern to change in a warming climate
As human activities cause the Earth's temperature to increase, reliable, well-studied weather patterns like the Madden-Julian Oscillation will change too, say researchers at Colorado State University. (2018-12-27)

Scientists discover the forces behind extreme heat over Northeast Asia
To understand what caused the extreme heat over Northeast Asia, a scientific collaboration of climatologists examined the forces of the tropical circulation and sea surface temperature. (2019-06-24)

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