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Major Atlantic ocean current system might be approaching critical threshold
weather systems worldwide river stability current system collapses global warming freshwater inflow
2021/8/6
A major Atlantic ocean current -- the Atlantic Meridional Overturning Circulation, or AMOC -- may have been losing stability in the course of the last century, according to new research. A potential c...
A long-feared scenario in which global warming causes Arctic permafrost to melt and release enough methane—a potent greenhouse gas--to accelerate warming and cause catastrophe probably won't happen.
OU-Led Study Links Deep-Time Dust with Major Impacts on Carbon Cycling
OU-Led Deep-Time Dust Carbon Cycling
2015/12/7
A University of Oklahoma-led study links vast amounts of iron-rich dust deposits from the late Paleozoic period of 300 million years ago with implications for major ecosystem fertilization and a massi...
Scientists have developed a new diagnostic tool that will enable better understanding of global climate patterns.
Major components of atmospheric organic aerosol in southern California as determined by hourly measurements of source marker compounds
atmospheric organic aerosol southern California source marker compounds
2010/12/28
We report the first hourly in-situ measurements of speciated organic aerosol (OA) composition in an urban environment. Field measurements were made in southern California at the University of Californ...
Long-range pollution transport during the MILAGRO-2006 campaign: a case study of a major Mexico City outflow event using free-floating altitude-controlled balloons
Long-range pollution transport the MILAGRO-2006 campaign a major Mexico City outflow event free-floating altitude-controlled balloons
2010/8/16
One of the major objectives of the Megacities Initiative: Local And Global Research Observations (MILAGRO-2006) campaign was to investigate the long-range transport of polluted Mexico City Metropolita...
Atmospheric deposition of mercury and major ions to the Pensacola (Florida) watershed: spatial, seasonal, and inter-annual variability
mercury major ions the Pensacola (Florida) watershed inter-annual variability
2010/8/13
Atmospheric deposition was measured at three sites in the Pensacola Bay watershed, Florida, between November 2004 and December 2007. Mercury deposition in the Pensacola Bay watershed was similar to th...
Dust storms come to Central and Southwestern China, too: implications from a major dust event in Chongqing
Dust storms Central and Southwestern China a major dust event Chongqing
2010/8/12
Dust storms from major Asian sources are usually carried by northwesterly or westerly winds over Northern and Southeastern China to the Pacific Ocean. These pathways leave Central and Southwestern Chi...
Researchers show major increase in CO2 emissions
CO2 emissions the world's natural 'sinks' carbon
2009/12/15
A rise in atmospheric CO2 emissions continues to outstrip the ability of the world's natural 'sinks' to absorb carbon, according to academics from the University of Sheffield, who have proved this usi...
Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle
Hemisphere ice sheets last glacial-interglacial cycle
2009/12/3
A 2.5-dimensional climate model of intermediate complexity, CLIMBER-2, fully coupled with the GREMLINS 3-D thermo-mechanical ice sheet model is used to simulate the evolution of major Northern Hemisph...
The representation of dust transport and missing urban sources as major issues for the simulation of PM episodes in a Mediterranean area
dust transport missing urban sources major issues PM episodes Mediterranean area
2009/11/9
Due to its adverse effects on human health, atmospheric particulate matter (PM) constitutes a growing challenge for air quality management. It is also a complex subject of study. The understanding of ...
Satellite observations and modeling of transport in the upper troposphere through the lower mesosphere during the 2006 major stratospheric sudden warming
Satellite observations upper troposphere lower mesosphere major stratospheric sudden warming
2009/7/23
An unusually strong and prolonged stratospheric sudden warming (SSW) in January 2006 was the first major SSW for which globally distributed long-lived trace gas data are available covering the upper t...
Update on emissions and environmental impacts from the international fleet of ships: the contribution from major ship types and ports
international fleet of ships major ship types ports
2009/3/31
A reliable and up-to-date ship emission inventory is essential for atmospheric scientists quantifying the impact of shipping and for policy makers implementing regulations and incentives for emission ...
Summertime PM2.5 ionic species in four major cities of China: nitrate formation in an ammonia-deficient atmosphere
PM2.5 ionic species China nitrate formation ammonia-deficient atmosphere
2009/3/13
Strong atmospheric photochemistry in summer can produce a significant amount of secondary aerosols, which may have a large impact on regional air quality and visibility. In the study reported herein,...
Rapid meridional transport of tropical airmasses to the Arctic during the major stratospheric warming in January 2003
Rapid meridional transport tropical airmasses Arctic
2009/2/9
We present observations of unusually high values of ozone and N2O in the middle stratosphere that were observed by the airborne submillimeter radiometer ASUR in the Arctic. The observations took place...