Search Results - "NEWMAN, P. A"

The anomalous change in the QBO in 2015–2016 by Newman, P. A., Coy, L., Pawson, S., Lait, L. R.

“…The quasi‐biennial oscillation (QBO) is a tropical lower stratospheric, downward propagating zonal wind variation, with an average period of ~28 months. The…”
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On the influence of North Pacific sea surface temperature on the Arctic winter climate by Hurwitz, M. M., Newman, P. A., Garfinkel, C. I.

“…Differences between two ensembles of Goddard Earth Observing System Chemistry‐Climate Model simulations isolate the impact of North Pacific sea surface…”
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A new formulation of equivalent effective stratospheric chlorine (EESC) by Newman, P. A., Daniel, J. S., Waugh, D. W., Nash, E. R.

“…Equivalent effective stratospheric chlorine (EESC) is a convenient parameter to quantify the effects of halogens (chlorine and bromine) on ozone depletion in…”
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The Arctic vortex in March 2011: a dynamical perspective by Hurwitz, M M, Newman, P A, Garfinkel, C I

“…Despite the record ozone loss observed in March 2011, dynamical conditions in the Arctic stratosphere were unusual but not unprecedented. Weak planetary wave…”
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Stratospheric ozone in the post-CFC era by Li, F., Stolarski, R. S., Newman, P. A.

“…Vertical and latitudinal changes in the stratospheric ozone in the post-chlorofluorocarbon (CFC) era are investigated using simulations of the recent past and…”
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Inorganic chlorine variability in the Antarctic vortex and implications for ozone recovery by Strahan, S. E., Douglass, A. R., Newman, P. A., Steenrod, S. D.

“…We infer the interannual variability of inorganic chlorine in the Antarctic lower stratospheric vortex using 9 years of Aura Microwave Limb Sounder (MLS)…”
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Measuring the Antarctic ozone hole with the new Ozone Mapping and Profiler Suite (OMPS) by Kramarova, N. A, Nash, E. R, Newman, P. A, Bhartia, P. K, McPeters, R. D, Rault, D. F, Seftor, C. J, Xu, P. Q, Labow, G. J

“…The new Ozone Mapping and Profiler Suite (OMPS), which launched on the Suomi National Polar-orbiting Partnership satellite in October 2011, gives a detailed…”
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Seasonal Variation of the Quasi-Biennial Oscillation Descent by Coy, L., Newman, P. A., Strahan, S, Pawson, S.

“…This study examines variations through the year in the rate of descent of the Quasi-Biennial Oscillation (QBO) wind in the tropical lower stratosphere. The…”
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Effect of zonal asymmetries in stratospheric ozone on simulated Southern Hemisphere climate trends by Waugh, D. W., Oman, L., Newman, P. A., Stolarski, R. S., Pawson, S., Nielsen, J. E., Perlwitz, J.

“…Stratospheric ozone is represented in most climate models by prescribing zonal‐mean fields. We examine the impact of this on Southern Hemisphere (SH) trends…”
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Impacts of climate change on stratospheric ozone recovery by Waugh, D. W., Oman, L., Kawa, S. R., Stolarski, R. S., Pawson, S., Douglass, A. R., Newman, P. A., Nielsen, J. E.

“…The impact of increasing greenhouse gases (GHGs) on the “recovery” of stratospheric ozone is examined using simulations of the Goddard Earth Observing System…”
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Assessment and applications of NASA ozone data products derived from Aura OMI/MLS satellite measurements in context of the GMI chemical transport model by Ziemke, J. R., Olsen, M. A., Witte, J. C., Douglass, A. R., Strahan, S. E., Wargan, K., Liu, X., Schoeberl, M. R., Yang, K., Kaplan, T. B., Pawson, S., Duncan, B. N., Newman, P. A., Bhartia, P. K., Heney, M. K.

“…Measurements from the Ozone Monitoring Instrument (OMI) and Microwave Limb Sounder (MLS), both on board the Aura spacecraft, have been used to produce daily…”
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New stratospheric dust belt due to the Chelyabinsk bolide by Gorkavyi, Nick, Rault, D. F., Newman, P. A., da Silva, A. M., Dudorov, A. E.

“…The Ozone Mapping Profiler Suite (OMPS) Limb Profiler (LP) on the recently launched NASA/NOAA NPP/Suomi satellite detected aerosol excess in the…”
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What would have happened to the ozone layer if chlorofluorocarbons (CFCs) had not been regulated? by Newman, P. A., Oman, L. D., Douglass, A. R., Fleming, E. L., Frith, S. M., Hurwitz, M. M., Kawa, S. R., Jackman, C. H., Krotkov, N. A., Nash, E. R., Nielsen, J. E., Pawson, S., Stolarski, R. S., Velders, G. J. M.

“…Ozone depletion by chlorofluorocarbons (CFCs) was first proposed by Molina and Rowland in their 1974 Nature paper. Since that time, the scientific connection…”
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“Once Bitten, Twice Shy”: Participant perspectives in the aftermath of an early HIV vaccine trial termination by Newman, P.A, Yim, S, Daley, A, Walisser, R, Halpenny, R, Cunningham, W, Loutfy, M

“…Abstract The Step Study phase IIb HIV-1 vaccine trial was terminated early due to futility; subsequent analyses revealed increased susceptibility to HIV…”
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“There is not a safe space where they can find themselves to be free”: (Un)safe spaces and the promotion of queer visibilities among township males who have sex with males (MSM) in Cape Town, South Africa by Hassan, N.R., Swartz, L., Kagee, A., De Wet, A., Lesch, A., Kafaar, Z., Newman, P.A.

“…Males who have sex with males (MSM) are prioritised in the global fight against HIV/AIDS, as a key affected population to receive HIV prevention, treatment,…”
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The contributions of chemistry and transport to low arctic ozone in March 2011 derived from Aura MLS observations by Strahan, S. E., Douglass, A. R., Newman, P. A.

“…Stratospheric and total columns of Arctic O3 (63–90oN) in late March 2011 averaged 320 and 349 DU, respectively, 50–100 DU lower than any of the previous 6…”
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Seasonal Prediction of the Quasi-biennial Oscillation by Coy, L, Newman, P A, Molod, A, Pawson, S, Alexander, M J, Holt, L

“…The ability to forecast the Quasi‐Biennial Oscillation (QBO) was examined using Version 2 of NASA's Global Earth Observing System Subseasonal‐to‐Seasonal…”
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QBO and annual cycle variations in tropical lower stratosphere trace gases from HALOE and Aura MLS observations by Schoeberl, M. R., Douglass, A. R., Newman, P. A., Lait, L. R., Lary, D., Waters, J., Livesey, N., Froidevaux, L., Lambert, A., Read, W., Filipiak, M. J., Pumphrey, H. C.

“…We have analyzed thirteen years (1993 to 2005) of HALOE and over two years of EOS MLS observations (September 2004 to December 2006) for QBO and annual cycle…”
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Projections of UV radiation changes in the 21st century: impact of ozone recovery and cloud effects by Bais, A. F., Tourpali, K., Kazantzidis, A., Akiyoshi, H., Bekki, S., Braesicke, P., Chipperfield, M. P., Dameris, M., Eyring, V., Garny, H., Iachetti, D., Jöckel, P., Kubin, A., Langematz, U., Mancini, E., Michou, M., Morgenstern, O., Nakamura, T., Newman, P. A., Pitari, G., Plummer, D. A., Rozanov, E., Shepherd, T. G., Shibata, K., Tian, W., Yamashita, Y.

“…Monthly averaged surface erythemal solar irradiance (UV-Ery) for local noon from 1960 to 2100 has been derived using radiative transfer calculations and…”
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Net influence of an internally generated quasi-biennial oscillation on modelled stratospheric climate and chemistry by Hurwitz, M. M, Oman, L. D, Newman, P. A, Song, I.-S

“…A Goddard Earth Observing System Chemistry-Climate Model (GEOSCCM) simulation with strong tropical non-orographic gravity wave drag (GWD) is compared to an…”
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