Now showing items 859-878 of 1104

  • Rank Histograms of Stratified Monte Carlo Ensembles 

    Siegert, S; Bröcker, J; Kantz, H (American Meteorological Society, 2012-05-01)
    The application of forecast ensembles to probabilistic weather prediction has spurred considerable interest in their evaluation. Such ensembles are commonly interpreted as Monte Carlo ensembles meaning that the ensemble ...
  • Rapid intra-adrenal feedback regulation of glucocorticoid synthesis. 

    Walker, Jamie J.; Spiga, F; Gupta, R; Zhao, Z; Lightman, SL; Terry, JR (Royal Society, 2014-11-12)
    The hypothalamic-pituitary-adrenal axis is a vital neuroendocrine system that regulates the secretion of glucocorticoid hormones from the adrenal glands. This system is characterized by a dynamic ultradian hormonal ...
  • Rate-induced tipping from periodic attractors: partial tipping and connecting orbits 

    Alkhayuon, HM; Ashwin, P (AIP Publishing, 2018)
    We consider how breakdown of the quasistatic approximation for attractors can lead to rate-dependent tipping, where a qualitative change in tracking/tipping behaviour of trajectories can be characterised in terms of a ...
  • Realizable Galois module classes over the group ring for non abelian extensions 

    Byott, Nigel P.; Sodaigui, Bouchaib (Association des Annales de l'Institut Fourier, 2013)
    Given an algebraic number field k and a finite group Γ, we write ℛ(O k [Γ]) for the subset of the locally free classgroup Cl(O k [Γ]) consisting of the classes of rings of integers O N in tame Galois extensions N/k with ...
  • Recent Arctic amplification and extreme mid-latitude weather 

    Cohen, Judah; Screen, James A.; Furtado, Jason C.; Barlow, Mathew; Whittleston, David; Coumou, Dim; Francis, Jennifer; Dethloff, Klaus; Entekhabi, Dara; Overland, James; Jones, Justin (Nature Publishing Group, 2014)
    The Arctic region has warmed more than twice as fast as the global average — a phenomenon known as Arctic amplification. The rapid Arctic warming has contributed to dramatic melting of Arctic sea ice and spring snow cover, ...
  • Recent results on magnetic plasma turbulence 

    Boldyrev, S; Perez, JC; Mason, J; Cattaneo, F (American Institute of Physics (AIP), 2013-06-13)
    Magnetic plasma turbulence is observed over a broad range of scales in the solar wind. We discuss the results of high-resolution numerical simulations of magnetohydrodynamic (MHD) turbulence that models plasma motion at ...
  • Recent trends and drivers of regional sources and sinks of carbon dioxide 

    Sitch, S; Friedlingstein, P; Gruber, N; Jones, SD; Murray-Tortarolo, G; Ahlström, A; Doney, SC; Graven, H; Heinze, C; Heinze, C; Heinze, C; Huntingford, C; Levis, S; Levy, PE; Lomas, M; Poulter, B; Viovy, N; Zaehle, S; Zeng, N; Arneth, A; Bonan, G; Bopp, L; Canadell, JG; Chevallier, F; Ciais, P; Ellis, R; Gloor, M; Peylin, P; Piao, SL; Le Quéré, C; Smith, B; Zhu, Z; Zhu, Z; Myneni, R (European Geosciences Union (EGU), 2015-02-02)
    © 2015 Author(s). The land and ocean absorb on average just over half of the anthropogenic emissions of carbon dioxide (CO2) every year. These CO2 "sinks" are modulated by climate change and variability. Here we use a suite ...
  • Reconciling precipitation with runoff: observed hydrological change in the midlatitudes 

    Osborne, Joe M.; Lambert, F. Hugo; Groenendijk, Margriet; Harper, Anna B.; Koven, Charles D.; Poulter, B; Pugh, Thomas A.M.; Sitch, S; Stocker, Benjamin D.; Wiltshire, Andy; Zaehle, Sönke (American Meteorological Society, 2015-12)
    Century-long observed gridded land precipitation datasets are a cornerstone of hydrometeorological research. But recent work has suggested that observed Northern Hemisphere midlatitude (NHML) land mean precipitation does ...
  • Recurrent network dynamics reconciles visual motion segmentation and integration 

    Medathati, NVK; Rankin, J; Meso, AI; Kornprobst, P; Masson, GS (Springer Nature, 2017-09-12)
    In sensory systems, a range of computational rules are presumed to be implemented by neuronal subpopulations with different tuning functions. For instance, in primate cortical area MT, different classes of direction-selective ...
  • Reduced dynamics and symmetric solutions for globally coupled weakly dissipative oscillators 

    Ashwin, Peter; Dangelmayr, Gerhard (Taylor & Francis, 2005)
    Systems of coupled oscillators may exhibit spontaneous dynamical formation of attracting synchronized clusters with broken symmetry; this can be helpful in modelling various physical processes. Analytical computation of ...
  • Reduced risk of North American cold extremes due to continued Arctic sea ice loss 

    Screen, James A.; Deser, Clara; Sun, Lantao (American Meteorological Society, 2014)
    In early-January 2014, an Arctic air outbreak brought extreme cold and heavy snowfall to central and eastern North America, causing widespread disruption and monetary losses. The media extensively reported the cold snap, ...
  • A refined version of Grothendieck's anabelian conjecture for hyperbolic curves over finite fields 

    Saidi, M; Tamagawa, A (American Mathematical Society, 2018-03-29)
    In this paper we prove a refined version of a theorem by Tamagawa and Mochizuki on isomorphisms between (tame) arithmetic fundamental groups of hyperbolic curves over finite fields, where one “ignores” the information ...
  • A refined version of Grothendieck's birational anabelian conjecture for curves over finite fields 

    Saidi, Mohamed; Tamagawa, A (Elsevier / Academic Press, 2017-03-17)
    In this paper we prove a refined version of Uchida’s theorem on isomorphisms between absolute Galois groups of global fields in positive characteristics, where one “ignores” the information provided by a “small” set of primes.
  • Regime Change Behaviour During Asian Monsoon Onset 

    Geen, R; Lambert, FH; Vallis, GK (American Meteorological Society, 2018-03-27)
    As the ITCZ moves off the equator on an aquaplanet, the Hadley circulation transitions from an equinoctial regime with two near symmetric, significantly eddy-driven cells, to a monsoon-like regime with a strong, thermally ...
  • Regional carbon fluxes from land use and land cover change in Asia, 1980–2009 

    Calle, L; Canadell, JG; Patra, P; Ciais, P; Ichii, K; Tian, H; Kondo, M; Piao, S; Arneth, A; Harper, AB; Ito, A; Kato, E; Koven, C; Sitch, S; Stocker, BD; Vivoy, N; Wiltshire, A; Zaehle, S; Poulter, B (IOP Publishing, 2016-07-08)
    We present a synthesis of the land-atmosphere carbon flux from land use and land cover change (LULCC) in Asia using multiple data sources and paying particular attention to deforestation and forest regrowth fluxes. The ...
  • Regional climate impacts of stabilizing global warming at 1.5 K using solar geoengineering 

    Jones, A; Haywood, J; Jones, A; Hawcroft, M; Moore, J; Guo, X (Wiley / American Geophysical Union (AGU), 2018-02-08)
    The 2015 Paris Agreement aims to limit global warming to well below 2 K above pre-industrial levels, and to pursue efforts to limit global warming to 1.5 K, in order to avert dangerous climate change. However, current ...
  • Regular and irregular patterns of self-localized excitation in arrays of coupled phase oscillators. 

    Wolfrum, M; Omel'chenko, OE; Sieber, J (American Institute of Physics (AIP), 2015-05)
    We study a system of phase oscillators with nonlocal coupling in a ring that supports self-organized patterns of coherence and incoherence, called chimera states. Introducing a global feedback loop, connecting the phase ...
  • The relationship between land-ocean surface temperature contrast and radiative forcing 

    Lambert, F. Hugo; Webb, Mark J.; Joshi, Manoj M. (American Meteorological Society, 2011)
    Previous work has demonstrated that observed and modeled climates show a near-time-invariant ratio of mean land to mean ocean surface temperature change under transient and equilibrium global warming. This study confirms ...
  • The relative contribution of noise and adaptation to competition during tri-stable motion perception 

    Meso, AI; Rankin, J; Faugeras, O; Kornprobst, P; Masson, GS (Association for Research in Vision and Ophthalmology (ARVO), 2016-12-09)
    Animals exploit antagonistic interactions for sensory processing and these can cause oscillations between competing states. Ambiguous sensory inputs yield such perceptual multistability. Despite numerous empirical studies ...
  • Reliability and importance of structural diversity of climate model ensembles 

    Yokohata, Tokuta; Annan, James D.; Collins, Matthew; Jackson, Charles S.; Shiogama, Hideo; Watanabe, Masahiro; Emori, Seita; Yoshimori, Masakazu; Abe, Manabu; Webb, Mark J.; Hargreaves, Julia C. (Springer, 2013-11-01)
    We investigate the performance of the newest generation multi-model ensemble (MME) from the Coupled Model Intercomparison Project (CMIP5). We compare the ensemble to the previous generation models (CMIP3) as well as several ...