Results 31 to 40 of about 2,918,823 (240)

Spatiotemporal analysis of atmospheric aerosols in African environments using MERRA-2 data (1980–2024): Impacts on climate extremes

iScience
Summary: This study investigates atmospheric aerosol trends and their climatic impacts across Africa from 1980 to 2024 using MERRA-2 reanalysis data.
Daniel O. Omokpariola
doaj   +1 more source

Global atmospheric chemistry – which air matters [PDF]

Atmospheric Chemistry and Physics, 2017
An approach for analysis and modeling of global atmospheric chemistry is developed for application to measurements that provide a tropospheric climatology of those heterogeneously distributed, reactive species that control the loss of methane and the ...
M. J. Prather, X. Zhu, C. M. Flynn, S. A. Strode, S. A. Strode, J. M. Rodriguez, S. D. Steenrod, S. D. Steenrod, J. Liu, J. Liu, J.-F. Lamarque, A. M. Fiore, L. W. Horowitz, J. Mao, L. T. Murray, D. T. Shindell, S. C. Wofsy   +16 more
doaj   +1 more source

Quantifying atmospheric transport, chemistry, and mixing using a new trajectory-box model and a global atmospheric-chemistry GCM [PDF]

Geoscientific Model Development, 2009
We present a novel method for the quantification of transport, chemistry, and mixing along atmospheric trajectories based on a consistent model hierarchy.
H. Riede, P. Jöckel, R. Sander
doaj  

Atmospheric Chemistry and Air Pollution

The Scientific World Journal, 2003
Atmospheric chemistry is an important discipline for understanding air pollution and its impacts. This mini-review gives a brief history of air pollution and presents an overview of some of the basic photochemistry involved in the production of ozone and
Jeffrey S. Gaffney, Nancy A. Marley
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Pre-industrial to end 21st century projections of tropospheric ozone from the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) [PDF]

, 2013
Present day tropospheric ozone and its changes between 1850 and 2100 are considered, analysing 15 global models that participated in the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP).
Lamarque, J. F., Archibald, A. T., Rumbold, S, Sudo, K., Faluvegi, G., Nagashima, T, Shindell, Drew T., Young, Paul, MacKenzie, Ian A., Voulgarakis, A., Eyring, V., Bowman, Howard, Cameron-Smith, Philip, Tilmes, Simone, Stevenson, D. S., Wild, Oliver, Dalsoren, Stig B, Josse, B, Doherty, R. M., Strode, Sarah, Bergmann, D., Righi, M, Horowitz, L. W., Szopa, Sophie, Naik, Vaishali, Collins, William J., Lee, Yunha H, Zeng, Guang, Cionni, I, Plummer, David A, Skeie, R   +30 more
core   +3 more sources

Improvement in Modeling of OH and HO₂ Radical Concentrations during Toluene and Xylene Oxidation with RACM2 Using MCM/GECKO-A

Atmosphere, 2021
Due to their major role in atmospheric chemistry and secondary pollutant formation such as ozone or secondary organic aerosols, an accurate representation of OH and HO2 (HOX) radicals in air quality models is essential.
Victor Lannuque, Barbara D’Anna, Florian Couvidat, Richard Valorso, Karine Sartelet   +4 more
doaj   +1 more source

Translophagy—A potential link between autophagy impairment and translational errors

FEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk, Gailing Ma, Robin Antrobus, Diego Manni, Marco Trevisan‐Herraz, Mustafa Khwaja, Max Brown, Gavin D. Richardson, Masaaki Komatsu, Daniel Erskine, Viktor I. Korolchuk, Tetsushi Kataura   +11 more
wiley   +1 more source

Atmospheric impact of the 1783-1784 Laki eruption: Part I Chemistry modelling. [PDF]

, 2003
Results from the first chemistry-transport model study of the impact of the 1783–1784 Laki fissure eruption (Iceland: 64°N, 17°W) upon atmospheric composition are presented.
Stevenson, D. S.; id_orcid, Stevenson, D. S., D. S. Stevenson, Derwent, R. G., Highwood, E.J., W. J. Collins, C. E. Johnson, V. Gauci, Johnson, C.E., Derwent, R.G., E. J. Highwood, Highwood, E. J., Collins, W. J., Stevenson, D.S., R. G. Derwent, Johnson, C. E., Collins, W.J., Gauci, V.   +17 more
core   +2 more sources

A compilation of tropospheric measurements of gas-phase and aerosol chemistry in polar regions [PDF]

Earth System Science Data, 2012
Measurements of atmospheric chemistry in polar regions have been made for more than half a century. Probably the first Antarctic ozone data were recorded in 1958 during the International Geophysical Year.
R. Sander, J. Bottenheim
doaj   +1 more source