Results 21 to 30 of about 45,560 (227)

Using Machine Learning to Make Computationally Inexpensive Projections of 21st Century Stratospheric Column Ozone Changes in the Tropics

Frontiers in Earth Science, 2021
Stratospheric ozone projections in the tropics, modeled using the UKESM1 Earth system model, are explored under different Shared Socioeconomic Pathways (SSPs).
James Keeble, James Keeble, Yu Yeung Scott Yiu, Alexander T. Archibald, Alexander T. Archibald, Fiona O’Connor, Alistair Sellar, Jeremy Walton, John A. Pyle, John A. Pyle   +9 more
doaj   +1 more source

Chemical data assimilation estimates of continental U.S. ozone and nitrogen budgets during the Intercontinental Chemical Transport Experiment-North America [PDF]

, 2007
Global ozone analyses, based on assimilation of stratospheric profile and ozone column measurements, and NOy predictions from the Real-time Air Quality Modeling System (RAQMS) are used to estimate the ozone and NOy budget over the continental United ...
Al-Saadi, J, Avery, M A, Avery, Melody A, Cohen, Ronald C, Crawford, J, Dibb, Jack E., Fairlie, T D, Fishman, Jack, Johnson, Donald, Kittaka, Chieko, Lenzen, A, Lingenfelser, Gretchen, Martin, Randall, Natarajan, M, Olson, J R, Pierce, R B, Rault, Didier, Sachse, G W, Schaack, T, Soja, Amber, Stobie, James, Szykman, Jim, Thompson, A M, Zapotocny, Tom   +23 more
core   +2 more sources

Stratospheric ozone depletion [PDF]

Philosophical Transactions of the Royal Society B: Biological Sciences, 1991
Solar ultraviolet radiation creates an ozone layer in the atmosphere which in turn completely absorbs the most energetic fraction of this radiation. This process both warms the air, creating the stratosphere between 15 and 50 km altitude, and protects the biological activities at the Earth's surface from this damaging radiation.
openaire   +2 more sources

Role of the stratospheric chemistry–climate interactions in the hot climate conditions of the Eocene [PDF]

Climate of the Past, 2019
The stratospheric ozone layer plays a key role in atmospheric thermal structure and circulation. Although stratospheric ozone distribution is sensitive to changes in trace gases concentrations and climate, the modifications of stratospheric ozone are not
S. Szopa, R. Thiéblemont, S. Bekki, S. Botsyun, S. Botsyun, P. Sepulchre   +5 more
doaj   +1 more source

Distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in Antarctic surface mass balance [PDF]

The Cryosphere, 2020
The Antarctic surface mass balance (SMB) has global climatic impacts through its effects on global sea-level rise. The forced increase in Antarctic SMB over the second half of the 20th century was argued to stem from multiple forcing agents, including ...
R. Chemke, R. Chemke, M. Previdi, M. R. England, M. R. England, L. M. Polvani, L. M. Polvani   +6 more
doaj   +1 more source

The impact of the mixing properties within the Antarctic stratospheric vortex on ozone loss in spring [PDF]

, 2001
Calculations of equivalent length from an artificial advected tracer provide new insight into the isentropic transport processes occurring within the Antarctic stratospheric vortex. These calculations show two distinct regions of approximately equal area:
Adrian M. Lee, Anna E. Jones, Butchart, Cacciani, Chen, Chipperfield, Chipperfield, Dunkerton, Emily F. Shuckburgh, Farman, Forster, Haynes, Hoskins, Hoskins, Howard K. Roscoe, Hugh C. Pumphrey, Jones, Juckes, Kirchhoff, Lee, Lubin, Martin W. Morrey, McCormick, Molina, Nakamura, Nakamura, Norton, Paparella, Peter H. Haynes, Prather, Pumphrey, Roscoe, Shindell, Shine, Shuckburgh, Swinbank, Tao, Waters, Waugh   +38 more
core   +1 more source

Long-term changes in the upper stratospheric ozone at Syowa, Antarctica [PDF]

Atmospheric Chemistry and Physics, 2014
Analyses of stratospheric ozone data determined from Dobson–Umkehr measurements since 1977 at the Syowa (69.0° S, 39.6° E), Antarctica, station show a significant decrease in ozone at altitudes higher than that of the 4 hPa pressure level during the ...
K. Miyagawa, I. Petropavlovskikh, R. D. Evans, C. Long, J. Wild, G. L. Manney, W. H. Daffer   +6 more
doaj   +1 more source

Analyzing ozone variations and uncertainties at high latitudes during sudden stratospheric warming events using MERRA-2 [PDF]

Atmospheric Chemistry and Physics, 2022
Stratospheric circulation is a critical part of the Arctic ozone cycle. Sudden stratospheric warming events (SSWs) manifest the strongest alteration of stratospheric dynamics.
S. Bahramvash Shams, S. Bahramvash Shams, V. P. Walden, J. W. Hannigan, W. J. Randel, I. V. Petropavlovskikh, I. V. Petropavlovskikh, A. H. Butler, A. de la Cámara   +8 more
doaj   +1 more source

The Electronically Confined Space Analogy Elucidates How Second-Row Triatomic 18-Valence-Electron Molecules Shape Life and Light. [PDF]

ChemistryOpen
The Electronically Confined Space Analogy explains ozone's unique UV absorption by linking bent 18‐valence‐electron structures to enhanced stability and photochemical activity, offering a molecular‐level rationale for its dominance as Earth's stratospheric UV filter.
Poater J, Viñas C, Teixidor F.
europepmc   +2 more sources

Agreement in late twentieth century Southern Hemisphere stratospheric temperature trends in observations and CCMVal-2, CMIP3 and CMIP5 models [PDF]

, 2013
We present a comparison of temperature trends using different satellite and radiosonde observations and climate (GCM) and chemistry-climate model (CCM) output, focusing on the role of photochemical ozone depletion in the Antarctic lower stratosphere ...
Butler, Amy, Calvo, Natalia, Haimberger, Leopold, Kushner, Paul, Marsh, Dan, Randel, William, Rosenlof, Karen, Young, Paul   +7 more
core   +2 more sources