Results 91 to 100 of about 122,513 (216)

Incorporation of particulates into accreted ice above subglacial Vostok lake, Antarctica [PDF]

, 2005
The nature of microscopic particulates in meteoric and accreted ice from the Vostok (Antarctica) ice core is assessed in conjunction with existing ice-core data to investigate the mechanism by which particulates are incorporated into refrozen lake water.
Priscu, JC, Royston-Bishop, G, Siegert, MJ, Tranter, M, Christner, BC, Lee, V, Christner, B., Priscu, J. C., Siegert, M. J., Royston-Bishop, G., Tranter, M., Lee, V.   +11 more
core   +1 more source

The deglaciation of the northwest sector of the last British-Irish ice sheet : integrating onshore and offshore data relating to chronology and behaviour

, 2013
It is now accepted that the last British-Irish Ice Sheet (BIIS) was highly dynamic and drained by numerous fast flowing ice streams. This dynamic nature combined with its maritime location made the BIIS sensitive to the rapid climate change that ...
Small, David
core  

How will melting of ice affect volcanic hazards in the 21st century? [PDF]

, 2010
Glaciers and ice sheets on many active volcanoes are rapidly receding. There is compelling evidence that melting of ice during the last deglaciation triggered a dramatic acceleration in volcanic activity.
Tuffen, Hugh
core  

Model Predictive Control of a Stand-Alone Hybrid Battery-Hydrogen Energy System: A Case Study of the PHOEBUS Energy System

Energies
Model predictive control is a promising approach to robustly control complex energy systems, such as hybrid battery-hydrogen energy storage systems that enable seasonal storage of renewable energies.
Alexander Holtwerth, André Xhonneux, Dirk Müller   +2 more
doaj   +1 more source

A dynamics-based separation of deep and shallow stratospheric circulation branches [PDF]

Atmospheric Chemistry and Physics
The wave-driven Brewer–Dobson circulation plays a crucial role in determining the transport of trace gases and aerosols in the stratosphere. We examine the structure of the circulation based on reanalysis data (ERA5, ERA-Interim, MERRA2, and JRA55) and ...
R. Baikhadzhaev, F. Ploeger, F. Ploeger, P. Preusse, M. Ern, T. Birner, T. Birner   +6 more
doaj   +1 more source

Unraveling the global response of secondary atmospheric pollutants to emission reductions imposed during the COVID-19 pandemic

Atmospheric Environment: X
This study employs the global chemistry–climate model EMAC, combined with emission adjustment factors (CONFORM), to evaluate the global impacts of the 2020 COVID-19 lockdowns on secondary air pollutants. Unlike earlier studies limited to short periods or
Apostolos T. Koumparos, Vlassis A. Karydis, Georgios I. Gkatzelis, Nikolaos Mihalopoulos, Alexandra P. Tsimpidi   +4 more
doaj   +1 more source

The Global Stratotype Section and Point (GSSP) for the base of the Holocene Series/Epoch (Quaternary System/Period) in the NGRIP ice core

, 2008
The Greenland ice core from NorthGRIP (NGRIP) contains a proxy climate record across the Pleistocene– Holocene boundary of unprecedented clarity and resolution.
Rasmussen, Sune Olander, Hoek, Wim Z., Steffensen, Jørgen Peder, Johnsen, Sigfus Johann, Steffensen, J. P., Rasmussen, Sune Ander, Steffensen, Jorgen-Peder, Schwander, Jakob, Andrews, John, Hoek, Wim, Walker, Mike, Gibbard, Philip, Hughen, Konrad, Walker, M., Litt, T., Kershaw, P., Johnsen, Sigfus, Kershaw, Peter, Popp, T., Steffensen, Jørgen-Peder, Hughen, K., Björck, Svante, Johnsen, Sigfu's, Lowe, J., Newnham, R., Kromer, Bernd, Nakagawa, Takeshi, Lowe, D. J., Popp, Trevor James, Lowe, J. John, Schwande, J., Cwynar, L., Newnham, Rewi, Newnham, Rewi M., Rasmussen, S. O., Popp, Trevor, Hoek, W., Cwynar, Les C., Lowe, David J., Nakagawa, T., Litt, Thomas, Lowe, John, Hughen, Konrad A., Kromer, B., Johnsen, S., Gibbard, P., Andrews, J., Cwynar, Les, Bjorck, S.   +48 more
core   +1 more source

An East Antarctic, sub-annual resolution water isotope record from the Mount Brown South Ice core

Scientific Data
We report high resolution measurements of the stable water isotope ratios (δ 18O, δD) from the Mount Brown South ice core (MBS, 69.11° S 86.31° E). The record covers the period 873 - 2009 CE with sub-annual temporal resolution.
Vasileios Gkinis, Sarah Jackson, Nerilie J. Abram, Christopher Plummer, Thomas Blunier, Margaret Harlan, Helle Astrid Kjær, Andrew D. Moy, Kerttu Maria Peensoo, Thea Quistgaard, Anders Svensson, Tessa R. Vance   +11 more
doaj   +1 more source

Impact of foresight horizons on energy system decarbonization pathways

Advances in Applied Energy
Energy system optimization models often assume a perfect foresight of all defining future influences, assuming full knowledge of technological and socio-political developments over a long time horizon.
Rachel Maier, Johannes Behrens, Maximilian Hoffmann, Felix Kullmann, Jann M. Weinand, Detlef Stolten   +5 more
doaj   +1 more source

Millennial-scale depositional cycles related to British Ice Sheet variability and North Atlantic paleocirculation since 45 kyr B.P., Barra Fan, U.K. margin

, 2001
Lithology, lithic petrology, planktonic foraminiferal abundances, and clastic grain sizes have been determined in a 30 m-long core recovered from the Barra Fan off northwest Scotland.
Jones, EJW, Austin, WEN, Paul C. Knutz, E. John W. Jones, Austin, William Edward Newns, Knutz, PC, William E. N. Austin   +6 more
core   +1 more source