Search Results - "SANTEE, Michelle L"

On the Cause of Recent Variations in Lower Stratospheric Ozone by Chipperfield, Martyn P., Dhomse, Sandip, Hossaini, Ryan, Feng, Wuhu, Santee, Michelle L., Weber, Mark, Burrows, John P., Wild, Jeanette D., Loyola, Diego, Coldewey‐Egbers, Melanie

“…We use height‐resolved and total column satellite observations and 3‐D chemical transport model simulations to study stratospheric ozone variations during…”
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The Chemical Effect of Increased Water Vapor From the Hunga Tonga‐Hunga Ha'apai Eruption on the Antarctic Ozone Hole by Wohltmann, Ingo, Santee, Michelle L., Manney, Gloria L., Millán, Luis F.

“…The eruption of the Hunga Tonga‐Hunga Ha'apai volcano on 15 January 2022 was one of the most explosive eruptions of the last decades. The amount of water vapor…”
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Tropospheric ozone variations governed by changes in stratospheric circulation by Neu, Jessica L., Flury, Thomas, Manney, Gloria L., Santee, Michelle L., Livesey, Nathaniel J., Worden, John

“…The downward transport of stratospheric air can deliver significant quantities of ozone to the upper troposphere. An analysis of satellite data suggests that…”
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Siege in the Southern Stratosphere: Hunga Tonga‐Hunga Ha'apai Water Vapor Excluded From the 2022 Antarctic Polar Vortex by Manney, Gloria L., Santee, Michelle L., Lambert, Alyn, Millán, Luis F., Minschwaner, Ken, Werner, Frank, Lawrence, Zachary D., Read, William G., Livesey, Nathaniel J., Wang, Tao

“…We use Aura Microwave Limb Sounder (MLS) trace gas measurements to investigate whether water vapor (H2O) injected into the stratosphere by the Hunga…”
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Response of stratospheric water vapor and ozone to the unusual timing of El Niño and the QBO disruption in 2015–2016 by Diallo, Mohamadou, Riese, Martin, Birner, Thomas, Konopka, Paul, Müller, Rolf, Hegglin, Michaela I., Santee, Michelle L., Baldwin, Mark, Legras, Bernard, Ploeger, Felix

“…The stratospheric circulation determines the transport and lifetime of key trace gases in a changing climate, including water vapor and ozone, which…”
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Aura Microwave Limb Sounder observations of dynamics and transport during the record-breaking 2009 Arctic stratospheric major warming by Manney, Gloria L., Schwartz, Michael J., Krüger, Kirstin, Santee, Michelle L., Pawson, Steven, Lee, Jae N., Daffer, William H., Fuller, Ryan A., Livesey, Nathaniel J.

“…A major stratospheric sudden warming (SSW) in January 2009 was the strongest and most prolonged on record. Aura Microwave Limb Sounder (MLS) observations are…”
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Energetic particle precipitation: A major driver of the ozone budget in the Antarctic upper stratosphere by Damiani, Alessandro, Funke, Bernd, López Puertas, Manuel, Santee, Michelle L., Cordero, Raul R., Watanabe, Shingo

“…Geomagnetic activity is thought to affect ozone and, possibly, climate in polar regions via energetic particle precipitation (EPP) but observational evidence…”
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The linkage between stratospheric water vapor and surface temperature in an observation-constrained coupled general circulation model by Wang, Yuan, Su, Hui, Jiang, Jonathan H., Livesey, Nathaniel J., Santee, Michelle L., Froidevaux, Lucien, Read, William G., Anderson, John

“…We assess the interactions between stratospheric water vapor (SWV) and surface temperature during the past two decades using satellite observations and the…”
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First evidence of middle atmospheric HO2 response to 27 day solar cycles from satellite observations by Wang, Shuhui, Zhang, Qiong, Millán, Luis, Li, King‐Fai, Yung, Yuk L., Sander, Stanley P., Livesey, Nathaniel J., Santee, Michelle L.

“…HO2 and OH, also known as HOx, play an important role in controlling middle atmospheric O3. Due to their photochemical production and short chemical lifetimes,…”
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Polar stratospheric cloud evolution and chlorine activation measured by CALIPSO and MLS, and modeled by ATLAS by Nakajima, Hideaki, Wohltmann, Ingo, Wegner, Tobias, Takeda, Masanori, Pitts, Michael C, Poole, Lamont R, Lehmann, Ralph, Santee, Michelle L, Rex, Markus

“…We examined observations of polar stratospheric clouds (PSCs) by CALIPSO, and of HCl and ClO by MLS along air mass trajectories, to investigate the dependence…”
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Comment on "Observation of Large and All-Season Ozone Losses Over the Tropics" [AIP Advances 12, 075066 (2022)] by Chipperfield, Martyn P, Chrysanthou, Andreas, Damadeo, Robert, Dameris, Martin, Dhomse, Sandip S, Fioletov, Vitali, Frith, Stacey M, Godin-Beekmann, Sophie, Hassler, Birgit, Liu, Jane, Müller, Rolf, Petropavlovskikh, Irina, Santee, Michelle L, Stauffer, Ryan M, Thompson, Anne M, Weber, Mark, Young, Paul J

“…As discussed above, and supported by extensive literature, there is no robust, credible observational evidence for substantial ozone depletion (i.e., an “ozone…”
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Midlatitude atmospheric OH response to the most recent 11-y solar cycle by Wang, Shuhui, Li, King-Fai, Pongetti, Thomas J., Sander, Stanley P., Yung, Yuk L., Liang, Mao-Chang, Livesey, Nathaniel J., Santee, Michelle L., Harder, Jerald W., Snow, Martin, Mills, Franklin P.

“…The hydroxyl radical (OH) plays an important role in middle atmospheric photochemistry, particularly in ozone (O ₃) chemistry. Because it is mainly produced…”
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Observed Increase of TTL Temperature and Water Vapor in Polluted Clouds over Asia by Su, Hui, Jiang, Jonathan H., Liu, Xiaohong, Penner, Joyce E., Read, William G., Massie, Steven, Schoeberl, Mark R., Colarco, Peter, Livesey, Nathaniel J., Santee, Michelle L.

“…Satellite observations are analyzed to examine the correlations between aerosols and the tropical tropopause layer (TTL) temperature and water vapor. This…”
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Record‐Low Arctic Stratospheric Ozone in 2020: MLS Observations of Chemical Processes and Comparisons With Previous Extreme Winters by Manney, Gloria L., Livesey, Nathaniel J., Santee, Michelle L., Froidevaux, Lucien, Lambert, Alyn, Lawrence, Zachary D., Millán, Luis F., Neu, Jessica L., Read, William G., Schwartz, Michael J., Fuller, Ryan A.

“…Aura Microwave Limb Sounder (MLS) measurements show that chemical processing was critical to the observed record‐low Arctic stratospheric ozone in spring 2020…”
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Arctic Ozone Depletion in 2019/20: Roles of Chemistry, Dynamics and the Montreal Protocol by Feng, Wuhu, Dhomse, Sandip S., Arosio, Carlo, Weber, Mark, Burrows, John P., Santee, Michelle L., Chipperfield, Martyn P.

“…We use a three‐dimensional chemical transport model and satellite observations to investigate Arctic ozone depletion in winter/spring 2019/20 and compare with…”
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What's in a Name? On the Use and Significance of the Term “Polar Vortex” by Manney, Gloria L., Butler, Amy H., Lawrence, Zachary D., Wargan, Krzysztof, Santee, Michelle L.

“…Mainstream and popular science media are rife with misunderstandings about what a “polar vortex” is. The term most aptly describes the stratospheric polar…”
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Constraining the chlorine monoxide (ClO)/chlorine peroxide (ClOOCl) equilibrium constant from Aura Microwave Limb Sounder measurements of nighttime ClO by Santee, Michelle L, Sander, Stanley P, Livesey, Nathaniel J, Froidevaux, Lucien

“…The primary ozone loss process in the cold polar lower stratosphere hinges on chlorine monoxide (ClO) and one of its dimers, chlorine peroxide (ClOOCl)…”
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Stratospheric Moistening After 2000 by Konopka, Paul, Tao, Mengchu, Ploeger, Felix, Hurst, Dale F., Santee, Michelle L., Wright, Jonathon S., Riese, Martin

“…The significant climate feedback of stratospheric water vapor (SWV) necessitates quantitative estimates of SWV budget changes. Model simulations driven by the…”
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Variations of tropical upper tropospheric clouds with sea surface temperature and implications for radiative effects by Su, Hui, Jiang, Jonathan H., Gu, Yu, Neelin, J. David, Kahn, Brian H., Feldman, Daniel, Yung, Yuk L., Waters, Joe W., Livesey, Nathaniel J., Santee, Michelle L., Read, William G.

“…The variations of tropical upper tropospheric (UT) clouds with sea surface temperature (SST) are analyzed using effective cloud fraction from the Atmospheric…”
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The Quadrennial Ozone Symposium 2016 by Godin-Beekmann, Sophie, Petropavloskikh, Irina, Reis, Stefan, Newman, Paul, Steinbrecht, Wolfgang, Rex, Markus, Santee, Michelle L., Eckman, Richard S., Zheng, Xiandong, Tully, Matthew B., Stevenson, David S., Young, Paul, Pyle, John, Weber, Mark, Tamminen, Johanna, Mills, Gina, Bais, Alkis F., Heaviside, Clare, Zerefos, Christos

“…1. Overview The 2016 Quadrennial Ozone Symposium （QOS-2016） was held on 4-9 September 2016 in Edinburgh, UK. The Symposium was organized by the International…”
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