Results 51 to 60 of about 1,647,626 (210)

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

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

Fast Transport Pathways Into the Northern Hemisphere Upper Troposphere and Lower Stratosphere During Northern Summer

, 2020
© 2020. American Geophysical Union. The authors thank the reviewers for their comments and suggestions. The authors acknowledge the constructive discussion with scientists at the Atmospheric Chemistry Observations and Modeling Lab at NCAR, especially ...
Clara Orbe, Marta Abalos, Tilme, Simone, Simone Tilmes, Tilmes, Simone, Xinyue Wang, Ábalos Álvarez, Marta, Wang, Xinyue, Yutian Wu, Wu, Yutian, Orbe, Clara   +10 more
core   +1 more source

The stratospheric Brewer–Dobson circulation under different phases of the Stratospheric Polar Vortex Oscillation combined with different phases of the Quasi-Biennial Oscillation

Earth and Planetary Physics
Using long-term Whole Atmosphere Community Climate Model version 5 (WACCM5) simulations initialized with the climatology around the year 2000, we studied the anomalous distribution of planetary wave and gravity wave fluxes during distinct phases of the ...
ZiXuan Yu, ChunHua Shi, Jian Rao, YueYue Yu   +3 more
doaj   +1 more source

The spatial distribution of hydrogen ions at topside ionosphere in local daytime

Terrestrial, Atmospheric and Oceanic Sciences, 2017
Using DEMETER and DMSP satellite data, the spatial distribution of hydrogen ion (H+) in local daytime has been compared and analyzed. At 840 km of DMSP height, the seasonal variations of H+ density is basically symmetric, with similar density values near
Xuhui Shen Xuemin Zhang
doaj   +1 more source

Extending the SBUV polar mesospheric cloud data record with the OMPS NP [PDF]

Atmospheric Chemistry and Physics, 2019
We have utilized Solar Backscatter Ultraviolet (SBUV) instrument measurements of atmospheric radiance to create a 40-year record of polar mesospheric cloud (PMC) behavior.
M. T. DeLand, G. E. Thomas
doaj   +1 more source

A new method for Lake Ice Extent retrieval for Northern Hemisphere

, 2022
A poster presentation about a new method for Lake Ice Extent retrieval for Northern Hemisphere. This method is exploited in provision of 500m Lake Ice Extent Northern Hemisphere (LIE-NH) as one of the cryosphere products in the Copernicus Global Land ...
Kari Luojus, Sari Metsämäki, Heinilä Kirsikka, Gabriele Schwaizer, Lars Keuris, Sakari Väkevä   +5 more
core   +1 more source

Comparing forward and inverse models to estimate the seasonal variation of hemisphere-integrated fluxes of carbonyl sulfide [PDF]

Atmospheric Chemistry and Physics, 2002
A simple inverse model is proposed to deduce hemisphere-integrated COS flux based on published time series of total column COS. The global atmosphere is divided into two boxes representing the Northern and Southern Hemispheres, and the total column ...
A. J. Kettle, U. Kuhn, M. von Hobe, J. Kesselmeier, P. S. Liss, M. O. Andreae   +5 more
doaj  

Origin of the Frigid Period in the Northern Hemisphere [PDF]

Science, 1892
n ...
openaire   +3 more sources