Results 71 to 80 of about 301,665 (287)

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

open access: yesAtmospheric 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   +5 more
doaj  

ANTARES and other Neutrino Telescopes in the Northern Hemisphere

open access: yes, 2008
Several projects are concentrating their efforts on opening the high energy neutrino window on the Universe with km-scale detectors. The detection principle relies on the observation, using photomultipliers, of the Cherenkov light emitted by charged ...
Kouchner, Antoine
core   +3 more sources

A comparison of mean winds and gravity wave activity in the northern and southern polar MLT [PDF]

open access: yes, 2001
Mean winds and waves observed in the mesosphere and lower thermosphere with MF radars located at Davis (69°S, 78°E) and Poker Flat (65°N, 147°W) are compared.
Andrew Dowdy   +15 more
core   +2 more sources

Interfollicular Plasmacytosis and Hyperplastic Germinal Centers in Idiopathic Multicentric Castleman Disease, Idiopathic Plasmacytic Lymphadenopathy Subtype

open access: yes
American Journal of Hematology, EarlyView.
Stephanie Quon   +5 more
wiley   +1 more source

Phylogenomics and Biogeography of the Eastern Asian–Eastern North American Disjunct Genus Hylodesmum (Fabaceae)

open access: yesBiological Diversity, EarlyView.
Integrating data from plastid genomes, nrDNA, and 353 low‐copy nuclear genes, this study establishes a robust phylogenetic framework for Hylodesmum. This framework supports a taxonomic revision recognizing 18 species and reveals a complex pattern of bidirectional EA–ENA dispersal, with mammals as a plausible dispersal agent. ABSTRACT Phylogenomics with
Zhuqiu Song   +5 more
wiley   +1 more source

The ionospheric F2 region winter anomaly and its dependence on solar activity in the northern and southern hemisphere.

open access: yesGeofísica Internacional, 1997
Data from two ionospheric sounders each from the northern and southern hemisphere, are used for a statistical analysis of foF2 monthly medians for summer and winter and high and low solar activity.
Eduardo Francisco Garat   +1 more
doaj  

Southern Hemisphere climate variability forced by Northern Hemisphere ice-sheet topography [PDF]

open access: yesNature, 2018
The presence of large Northern Hemisphere ice sheets and reduced greenhouse gas concentrations during the Last Glacial Maximum fundamentally altered global ocean-atmosphere climate dynamics. Model simulations and palaeoclimate records suggest that glacial boundary conditions affected the El Niño-Southern Oscillation, a dominant source of short-term ...
Jones, T. R.   +5 more
openaire   +4 more sources

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

The impacts of biological invasions

open access: yesBiological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

No trends in spring and autumn phenology during the global warming hiatus

open access: yesNature Communications, 2019
A global warming hiatus occurred during 1998 and 2012 but its effects on phenology are unclear. Here the authors examine the trends in spring and autumn phenology in the northern hemisphere and the effects of the warming hiatus and show that phenology ...
Xufeng Wang   +8 more
doaj   +1 more source

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