Results 41 to 50 of about 237,390 (299)

Historical and Future Trends in Ocean Climate and Biogeochemistry [PDF]

open access: yesOceanography, 2014
Changing atmospheric composition due to human activities, primarily carbon dioxide (CO2) emissions from fossil fuel burning, is already impacting ocean circulation, biogeochemistry, and ecology, and model projections indicate that observed trends will ...
Scott C. Doney   +2 more
doaj   +1 more source

Ocean chemistry, ocean warming, and emerging hypoxia: Commentary [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2016
AbstractFor 50 years, ocean scientists have represented deep sea biogeochemical rates as a temperature independent function of depth with form R = R0e−αz where z is depth in km. We show this resembles, but is not an identity for, a form of the classical Arrhenius equation K = Ae−Ea/RT where T is temperature in Kelvins, R is the gas constant (8.314 JK ...
Peter G. Brewer, Edward T. Peltzer
openaire   +1 more source

The impact of a seasonally ice free Arctic Ocean on the temperature, precipitation and surface mass balance of Svalbard [PDF]

open access: yes, 2012
The observed decline in summer sea ice extent since the 1970s is predicted to continue until the Arctic Ocean is seasonally ice free during the 21st Century. This will lead to a much perturbed Arctic climate with large changes in ocean surface energy flux.
Bamber, Jonathan L   +3 more
core   +2 more sources

Climate Trends and the Remarkable Sensitivity of Shelf Regions [PDF]

open access: yes, 2019
Tidal motion of oceanic salt water through the ambient geomagnetic field induces periodic electromagnetic field signals. Amplitudes of the induced signals are sensitive to variations in electrical seawater conductivity and, consequently, to changes in ...
Irrgang, Christopher   +3 more
core   +1 more source

On the relationship between Atlantic meridional overturning circulation slowdown and global surface warming

open access: yesEnvironmental Research Letters, 2020
According to established understanding, deep-water formation in the North Atlantic and Southern Ocean keeps the deep ocean cold, counter-acting the downward mixing of heat from the warmer surface waters in the bulk of the world ocean.
L Caesar, S Rahmstorf, G Feulner
doaj   +1 more source

The global warming hiatus: Slowdown or redistribution? [PDF]

open access: yes, 2016
Global mean surface temperatures (GMST) exhibited a smaller rate of warming during 1998-2013, compared to the warming in the latter half of the 20th Century.
Boyer, Tim   +8 more
core   +2 more sources

Glacial mode shift of the Atlantic meridional overturning circulation by warming over the Southern Ocean

open access: yesCommunications Earth & Environment, 2021
Abrupt northern hemisphere warming caused by strengthening of the Atlantic meridional overturning circulation may have been triggered by warming over the Southern Ocean, according to numerical simulations with a sea-ice coupled ocean general circulation ...
Akira Oka   +5 more
doaj   +1 more source

Unabated Global Ocean Warming Revealed by Ocean Heat Content from Remote Sensing Reconstruction

open access: yesRemote Sensing, 2023
As the most relevant indicator of global warming, the ocean heat content (OHC) change is tightly linked to the Earth’s energy imbalance. Therefore, it is vital to study the OHC and heat absorption and redistribution.
Hua Su   +4 more
doaj   +1 more source

The Effect of Purcell Cavities on the Lifetime of Thermally Activated Delayed Fluorescent Emitters

open access: yesAdvanced Functional Materials, EarlyView.
A pressing challenge to OLED displays and lighting is to balance high efficiency and long operational lifetime in the deep blue spectrum. The Purcell effect can reduce the triplet density and hence the probability for destructive energy‐driven triplet annihilation events that limit the OLED lifetime. Here we study of the Purcell effect on two different
Sritoma Paul   +4 more
wiley   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

open access: yesAdvanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado   +6 more
wiley   +1 more source

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