Results 51 to 60 of about 7,657 (248)

The potential role of stratospheric ozone in the stratosphere‐ionosphere coupling during stratospheric warmings [PDF]

open access: yesGeophysical Research Letters, 2012
The recent discovery of large ionospheric disturbances associated with sudden stratospheric warmings (SSW) has challenged the current understanding of mechanisms coupling the stratosphere and ionosphere. Non‐linear interaction of planetary waves and tides has been invoked as a primary mechanism for such coupling.
Goncharenko, Larisa   +3 more
openaire   +4 more sources

Identifying orographic gravity waves in 3D observations via backward ray tracing [PDF]

open access: yesAtmospheric Chemistry and Physics
Atmospheric gravity waves (GWs) generated by orography, commonly referred to as mountain waves (MWs), play a key role in driving atmospheric circulation and in modulating phenomena such as sudden stratospheric warmings (SSWs). Their contribution, however,
S. Rhode, P. Preusse, J. Ungermann
doaj   +1 more source

Gimballed Limb Observer for Radiance Imaging of the Atmosphere (GLORIA) scientific objectives [PDF]

open access: yesAtmospheric Measurement Techniques, 2014
The upper troposphere/lower stratosphere (UTLS) represents an important part of the climate system. Even small changes in the composition and dynamic structure of this region have significant radiative effects.
M. Riese   +17 more
doaj   +1 more source

Pollution of the Stratosphere

open access: yesEnvironmental Conservation, 1974
Ozone in the stratosphere is vital to life on Earth. Yet it is chemically unstable and is susceptible to catalytic destruction from a long list of chemical substances, including NOX, HOX, CIOX, and metal oxides. In the stratosphere, these catalysts can be very active in ozone destruction, even when present at only one part of catalyst per 10,000 of ...
openaire   +2 more sources

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Environmental Insights and Sustainability Opportunities for Scaled‐Up MXene Production Without Etching

open access: yesAdvanced Science, EarlyView.
Through a systematic and comprehensive analysis of the environmental impacts for the emerging MXene synthesis pathways, this study presents process transformation and optimization opportunities for low‐carbon MXene production from laboratory to industrial scales.
Yushuai Huang   +6 more
wiley   +1 more source

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

open access: yesAtmospheric 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   +11 more
doaj   +1 more source

Embedding Chemistry and Pharmacy Into Sustainability

open access: yesAngewandte Chemie International Edition, EarlyView.
Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
wiley   +1 more source

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

open access: yesAnnales 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   +5 more
doaj   +1 more source

Rethinking Climate Change on the Role of Human Power Generation, Alternative Perspectives, Potential Solutions, and a Plea for Action

open access: yesChemie Ingenieur Technik, EarlyView.
All energy matters Let us broaden the discussion on solutions to climate change. Greenhouse gases have upset the delicate equilibrium of the Earth's energy balance. Consequently, all sources of heat affect the temperature of the Earth. Although the amount of additional heat generated by humans is a fraction of that produced by the sun, it is generated ...
Martin Bertau   +2 more
wiley   +1 more source

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