Results 61 to 70 of about 34,894 (282)

Water vapor in the tropical lower stratosphere during the driest phase of the atmospheric "tape recorder" [PDF]

, 2001
Data from the Microwave Limb Sounder on the Upper Atmosphere Research Satellite are used to examine sequences of days during the driest phase of the atmospheric “tape recorder” signal in the lower stratosphere.
Billingham, A., H. L. Clark, R. S. Harwood, Clark, H. L., A. Billingham, Pumphrey, H. C., H. C. Pumphrey   +6 more
core   +1 more source

Nickel‐Free Perovskite Solar Cells Enabled by Self‐Assembled Monolayers: A Pathway to Efficient and Recyclable Devices

Advanced Energy Materials, EarlyView.
Replacing toxic NiOx with phenyl‐substituted phosphonic‐acid carbazole monolayers (Ph‐5PACz) yields inverted perovskite solar cells that are efficient and recyclable. The nickel‐free interface reaches 25.3% efficiency and enables closed‐loop ITO recovery with near‐98% performance retention, while life‐cycle and techno‐economic analyses confirm lower ...
Yanxue Wang, Roman Kučera, Sinuhé Perea‐Puente, Mykhailo Sytnyk, Andrew Hainer, Zijian Peng, Savannah Bennett, Juan S. Rocha‐Ortiz, Albert These, Hakan U Dag, Qi Fan, Anastasia Barabash, Zhenni Wu, Chaohui Li, Jens Hauch, Olga Kasian, Christoph J. Brabec, Ian Marius Peters   +17 more
wiley   +1 more source

Structural changes in the shallow and transition branch of the Brewer–Dobson circulation induced by El Niño [PDF]

Atmospheric Chemistry and Physics, 2019
The stratospheric Brewer–Dobson circulation (BDC) determines the transport and atmospheric lifetime of key radiatively active trace gases and further impacts surface climate through downward coupling.
M. Diallo, M. Diallo, P. Konopka, M. L. Santee, R. Müller, M. Tao, K. A. Walker, B. Legras, M. Riese, M. Ern, F. Ploeger, F. Ploeger   +11 more
doaj   +1 more source

EOS Microwave Limb Sounder Observations of the Antarctic Polar Vortex Breakup in 2004 [PDF]

, 2005
Observations from the Microwave Limb Sounder (MLS) on NASA's new Aura satellite give an unprecedentedly detailed picture of the spring Antarctic polar vortex breakup throughout the stratosphere.
Waters, J. W., Froidevaux, L., Santee, M. L., Manney, G. L., Pawson, S., Read, W. G., Livesey, N. J., Pumphrey, H. C.   +7 more
core   +1 more source

The Rich Chemistry of Ionized Methanol With Sulfur Dioxide: Pathways to Prebiotic and Elusive Species in Earth's Atmosphere and Space

Chemistry – A European Journal, EarlyView.
The reaction between the methanol radical cation and sulfur dioxide is remarkably fast and forms several ionic and neutral products (HOSOH+, CH2OSO+, CH2OH+, CH2O, H2O, HSO2). The chemistry goes beyond simple proton or hydrogen transfer, revealing a close interaction between the two species, relevant to atmospheric and astrochemical environments where ...
Mauro Satta, Daniele Catone, Mattea Carmen Castrovilli, Antonella Cartoni   +3 more
wiley   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source

Global analysis for periodic variations in gravity wave squared amplitudes and momentum fluxes in the middle atmosphere [PDF]

Annales Geophysicae, 2019
Atmospheric gravity waves (GWs) are an important coupling mechanism in the middle atmosphere. For instance, they provide a large part of the driving of long-period atmospheric oscillations such as the Quasi-Biennial Oscillation (QBO) and the semiannual ...
D. Chen, D. Chen, C. Strube, M. Ern, P. Preusse, M. Riese   +5 more
doaj   +1 more source

Transport and mixing of chemical air masses in idealized baroclinic life cycles [PDF]

, 2007
The transport, mixing, and three- dimensional evolution of chemically distinct air masses within growing baroclinic waves are studied in idealized, high- resolution, life cycle experiments using suitably initialized passive tracers, contrasting the two ...
Esler, J. G., Esler, JG, Polvani, Lorenzo M., Polvani, LM   +3 more
core   +1 more source

Machine Learning‐Based Correction of Reanalysis Surface Radiation Fluxes Using Ground‐Measured Data in the Southern Brazilian Pampa Biome

International Journal of Climatology, EarlyView.
This study demonstrates that ERA5 provides more accurate surface radiation flux estimates than MERRA2 across the Southern Brazilian Pampa. Machine learning models, particularly Random Forest, further improved the precision of reanalysis data for climate applications.
Olusola Samuel Ojo, Michel Baptistella Stefanello, Alecsander Mergen, Maria Eduarda Oliveira Pinheiro, Vanessa de Arruda Souza, Débora Regina Roberti   +5 more
wiley   +1 more source

What causes the irregular cycle of the atmospheric tape recorder signal in HCN? [PDF]

, 2010
Variations in the mixing ratio of long-lived trace gases entering the stratosphere in the tropics are carried upward with the rising air with the signal being observable throughout the tropical lower stratosphere.
K. A. Walker, Müller, R., J.-U. Grooß, Riese, M., M. Riese, Grooss, J. -U., P. Konopka, Heil, A., Pumphrey, Hugh, R. Müller, Guenther, G., Grooß, J.-U., H.-C. Pumphrey, Schultz, M., A. Heil, Pommrich, R., Pumphrey, H.-C., Konopka, P., Walker, K. A., Walker, K.A., Günther, G., Mueller, R., G. Günther, R. Pommrich, M. Schultz   +24 more
core   +1 more source