Results 61 to 70 of about 1,591,136 (306)

Interannual Modulation of Northern Hemisphere Winter Storm Tracks by the QBO

Geophysical Research Letters, 2018
Storm tracks, defined as the preferred regions of extratropical synoptic‐scale disturbances, have remarkable impacts on global weather and climate systems.
Jiabao Wang, Hye‐Mi Kim, Edmund K. M. Chang   +2 more
doaj   +1 more source

Northern Hemisphere Stationary Waves in a Changing Climate [PDF]

Current Climate Change Reports, 2019
Abstract Purpose of Review Stationary waves are planetary-scale longitudinal variations in the time-averaged atmospheric circulation. Here, we consider the projected response of Northern Hemisphere stationary waves to climate change in winter and summer.
Wills, Robert C.J., White, Rachel H., Levine, Xavier J.   +2 more
openaire   +3 more sources

Low Latency Global Carbon Budget Reveals Late 2024 Carbon Losses and Contrasting Early 2025 Land Sink Recovery Signals

Advanced Science, EarlyView.
Low latency carbon budget estimates for July 2024–June 2025 combine atmospheric CO2 growth rates, fossil emissions, ocean uptake, DGVM land fluxes, and OCO‐2 inversions. The budget shows that late‐2024 land carbon losses dominate the annual anomaly, while early‐2025 recovery differs between bottom‐up models and top‐down inversions, especially in ...
Piyu Ke, Philippe Ciais, Yitong Yao, Stephen Sitch, Wei Li, Xiaomeng Du, Xiaofan Gui, Ben Poulter, Thomas Colligan, Auke M. van der Woude, Joram Hooghiem, Wouter Peters, Zhu Liu, Zhu Deng, Zhe Jin, Xiangjun Tian, Yilong Wang, Junjie Liu, Sudhanshu Pandey, Chris O'Dell, Jiang Bian, John Miller, Xin Lan, Jefferson Goncalves De Souza, Michael O'Sullivan, Pierre Friedlingstein, Julien Alléon, Yi Xi, Daniel S. Goll, Lei Zhu, Guido R. van der Werf, Shilong Piao, Frédéric Chevallier   +32 more
wiley   +1 more source

An Arbovirus Cline across the Northern Hemisphere

Virology, 1995
The mode and tempo of arbovirus evolution and dispersal can help to explain the dynamics of pandemics, viral outbreaks, and emerging viruses. By comparing nucleotide and deduced amino acid sequences of their envelope proteins, we describe the continuous distribution of the tick-borne encephalitis (TBE) complex viruses, the most important flaviviruses ...
de A. Zanotto, P.M., Gao, G.F., Gritsun, T., Marin, M.S., Jiang, W.R., Venugopal, K., Reid, H.W., Gould, E.A.   +7 more
openaire   +2 more sources

Palaeoproteomic Deconvolution of Physical and Genetic Collagen Mixtures

Advanced Science, EarlyView.
ClassiCOL_v2 uses a novel “peptide patching” framework that treats any collagen sample as a patchwork of peptide sequences derived from phylogenetically related species. This allows the algorithm to simultaneously resolve two previously intractable problems: multi‐species samples and/or database deficiencies.
Ian Engels, Tristan Dedrie, Synnøve K. Mo, Simon Van de Vyver, Thijs R. A. Vandenbroucke, Kévin Di Modíca, Jan Decher, Alice Toso, Dieter Deforce, Simon Daled, Alexandra Burnett, Grégory Abrams, Maarten Dhaenens   +12 more
wiley   +1 more source

ESTIMATION OF THE ASYMMETRIC VERTICAL VARIATION OF THE SOUTHERN AND NORTHERN HEMISPHERES OF THE EARTH

Геодинамика и тектонофизика, 2015
In previous studies, the northern hemisphere of the Earth is considered to be in compression while the southern one is in expansion. In this study, based on three different methods, we calculate average vertical variations of the two hemispheres from ...
Wen-Bin Shen Wen-Bin Shen, Rong Sun Rong Sun, Yu. Barkin, Ziyu Shen Ziyu Shen   +3 more
doaj   +1 more source

Austrocedrus from the Late Cretaceous of Antarctica and its implications for the early evolution of southern cypresses (Callitroideae, Cupressaceae)

American Journal of Botany, EarlyView.
Abstract Premise The modern distribution of the southern cypresses, Callitroideae (Cupressaceae), reflects a classic Gondwanan distribution. The initial diversification of Callitroideae is estimated to have occurred during the Cretaceous, yet fossils from this period are rare, hampering our understanding of its early evolutionary history.
Kelly C. Pfeiler, Kelly K. S. Matsunaga, Ana Andruchow‐Colombo, Ari Iglesias, Selena Y. Smith, Brian A. Atkinson   +5 more
wiley   +1 more source

Effect of interplanetary magnetic field Bx on the polar electrojets as observed by CHAMP and Swarm satellites

Earth and Planetary Physics
Based on 16 years of magnetic field observations from CHAMP and Swarm satellites, this study investigates the influence of the Interplanetary Magnetic Field (IMF) Bx component on the location and peak current density of the polar electrojets (PEJs).
Hui Wang, ChengZhi Wang, YunFang Zhong
doaj   +1 more source

Drivers of hemispheric differences in return dates of mid-latitude stratospheric ozone to historical levels [PDF]

Atmospheric Chemistry and Physics, 2013
Chemistry-climate models (CCMs) project an earlier return of northern mid-latitude total column ozone to 1980 values compared to the southern mid-latitudes.
H. Garny, G. E. Bodeker, D. Smale, M. Dameris, V. Grewe   +4 more
doaj   +1 more source

Metastability of Northern Hemisphere Teleconnection Modes

Journal of the Atmospheric Sciences, 2015
Abstract This study applies a finite-element, bounded-variation, vector autoregressive method to assess midtropospheric flow regimes characterized by regime switches between metastable states. The flow is assessed in reanalysis data from three different reanalysis sets assimilating surface data only; surface and upper-air data; and ocean,
Risbey, J., O’Kane, T., Monselesan, D., Franzke, C., Horenko, I.   +4 more
openaire   +3 more sources