Concept

Antarctic Circumpolar Current

Related publications (38)

X-point Position Dependence of Edge Intrinsic Toroidal Rotation on TCV

Olivier Sauter, Basil Duval, Holger Reimerdes, Benoît Labit, Alexander Karpushov, Wouter Vijvers

Recent theoretical work predicts intrinsic toroidal rotation in the tokamak edge to depend strongly on the normalized major radial position of the X-point. With this motivation, we conducted a series of Ohmic L-mode shots on the Tokamak a Configuration Var ...

American Institute of Physics2015

Improvement in fast particle track reconstruction with robust statistics

Matthias Wolf, Shirit Cohen, Sofia Vallecorsa, Mathieu Ribordy, Xiaoxia Bai

The IceCube project has transformed 1 km(3) of deep natural Antarctic ice into a Cherenkov detector Muon neutrinos are detected and their direction is inferred by mapping the light produced by the secondary muon track inside the volume instrumented with ph ...

Elsevier2014

Atmospheric Composition and Biogeochemical Cycles over the Last Million Years

Jérôme Chappellaz

Ice core analysis provides the most direct evidence of changes in some major greenhouse gases (CO2, CH4 and N2O) over the climatic cycle covering approximately the last 150,000 years. A remarkable overall correlation is observed between the CO2 or CH4 reco ...

Elsevier BV2014

High resolution measurements of carbon monoxide along a late Holocene Greenland ice core: Evidence for in situ production

Jérôme Chappellaz

We measured the methane mixing ratios of enclosed air in five ice core sections drilled on the East Antarctic Plateau. Our work aims to study two effects that alter the recorded gas concentrations in ice cores: layered gas trapping artifacts and firn smoot ...

Copernicus GmbH2014

Two-phase change in CO 2, Antarctic temperature and global climate during Termination II

Jérôme Chappellaz

Methane measurements along the Vostok ice core reveal substantial changes over the past 160,000 years which are associated with climate fluctuations. These results point to changes in sources of methane and also show that methane has probably contributed, ...

Springer Science and Business Media LLC2013

On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 2: The effects of the El Nino/Southern Oscillation, volcanic eruptions and contributions of atmospheric dynamics and chemistry to long-term total ozone changes

Anthony Christopher Davison, Linda Frossard

We present the first spatial analysis of "fingerprints" of the El Nino/Southern Oscillation (ENSO) and atmospheric aerosol load after major volcanic eruptions (El Chichon and Mt. Pinatubo) in extreme low and high (termed ELOs and EHOs, respectively) and me ...

Copernicus Publications2013

On the relationship between total ozone and atmospheric dynamics and chemistry at mid-latitudes - Part 1: Statistical models and spatial fingerprints of atmospheric dynamics and chemistry

Anthony Christopher Davison, Linda Frossard

We use statistical models for mean and extreme values of total column ozone to analyze "fingerprints" of atmospheric dynamics and chemistry on long-term ozone changes at northern and southern mid-latitudes on grid cell basis. At each grid cell, the r-large ...

Copernicus Publications2013

Evaluation of biospheric components in earth system models using modern and palaeo-observations: The state-of-the-art

Jérôme Chappellaz

We investigate for the first time the loss and alteration of past atmospheric information from air trapping mechanisms under low-accumulation conditions through continuous CH4 (and CO) measurements. Methane concentration changes were measured over the Dans ...

Copernicus GmbH2013

Effects of LHRF on toroidal rotation in Alcator C-Mod plasmas

Christian Gabriel Theiler

Application of lower hybrid range of frequencies (LHRF) waves can induce both co- and counter-current directed changes in toroidal rotation in Alcator C-Mod plasmas, depending on the target plasma current, electron density, confinement regime and magnetic ...

2013

Where to find 1.5 million yr old ice for the IPICS "Oldest-Ice" ice core

Jérôme Chappellaz

The recovery of a 1.5 million yr long ice core from Antarctica represents a keystone of our understanding of Quaternary climate, the progression of glaciation over this time period and the role of greenhouse gas cycles in this progression. Here we tackle t ...

Copernicus GmbH2013

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