Results 11 to 20 of about 303,742 (304)

Trends and emissions of six perfluorocarbons in the Northern Hemisphere and Southern Hemisphere [PDF]

open access: yes, 2020
Perfluorocarbons (PFCs) are potent greenhouse gases with global warming potentials up to several thousand times greater than CO2 on a 100-year time horizon. The lack of any significant sinks for PFCs means that they have long atmospheric lifetimes of the
A. J. Hind   +21 more
core   +4 more sources

Plutella polaris Zeller, 1880 (Lepidoptera, Plutellidae) rediscovered at Svalbard, Norway, with comments on its taxonomic position

open access: yesNota Lepidopterologica, 2018
After 142 years, Plutella polaris Zeller, 1880 was rediscovered at Svalbard, Norway, in 2015. The locality and its vegetation are described. The specimen is the first female ever recorded, and its genitalia are illustrated.
Geir Søli, Leif Aarvik, Trude Magnussen
doaj   +3 more sources

Marine‐Calibrated Chronology of Southern Laurentide Ice Sheet Advance and Retreat: ∼2,000‐Year Cycles Paced by Meltwater–Climate Feedback

open access: yesGeophysical Research Letters, 2023
Climatic warming following the Last Glacial Maximum caused the southern Laurentide Ice Sheet (LIS) to begin ∼2,000‐year cycles of retreat and readvance whose cause remains ambiguous.
Andrew D. Wickert   +7 more
doaj   +1 more source

The movements of Alpine glaciers throughout the last 10,000 years as sensitive proxies of temperature and climate changes [PDF]

open access: yesEPJ Web of Conferences, 2020
A brief review of the movements of Alpine glaciers throughout the Holocene in the Northern Hemisphere (European Alps) and in the Southern Hemisphere (New Zealand Southern Alps) is presented.
Kutschera Walter   +5 more
doaj   +1 more source

DEVELOPMENT OF 23 CYCLES ACTIVITY IN NORTHERN AND SOUTHERN HEMISPHERES OF THE SUN

open access: yesOdessa Astronomical Publications, 2013
On an example of the 23rd cycle of solar activity the basic properties of its development in northern and southern hemispheres were researched (daily values of Wolf Sunspot Number - W, the daily values of Sun spots areas - Sp and daily values of flare ...
M. I. Ryabov   +2 more
doaj   +1 more source

A Climatology of Northern Hemisphere Blocking [PDF]

open access: yesJournal of Climate, 2006
Abstract In this paper a 55-yr (1948–2002) Northern Hemisphere blocking climatology is presented. Traditional blocking indices and methodologies are revised and a new blocking detection method is designed. This algorithm detects blocked flows and provides for a better characterization of blocking events with additional information on ...
Garcia-Herrera, Ricardo   +3 more
openaire   +3 more sources

Emission-Line Fluxes of Northern Planetary Nebulae [PDF]

open access: yes, 2015
We present long slit spectrophotometric emission line fluxes of bright and extended (
Aksaker, N.   +3 more
core   +3 more sources

Cetacean morbillivirus in Northern and Southern Hemispheres [PDF]

open access: yesFrontiers in Microbiology, 2014
In the last 25 years, at least 10 dramatic morbilliviral epidemics have occurred among free-ranging pinniped and cetacean species and populations worldwide. The origin(s) of the new Morbillivirus genus members causing these mass mortality events, along with the reason(s) behind their “sudden” appearance among wild aquatic mammals, are still unknown (Di
Giovanni eDi Guardo   +2 more
openaire   +3 more sources

Seasonality of Kawasaki disease: a global perspective. [PDF]

open access: yesPLoS ONE, 2013
Understanding global seasonal patterns of Kawasaki disease (KD) may provide insight into the etiology of this vasculitis that is now the most common cause of acquired heart disease in children in developed countries worldwide.Data from 1970-2012 from 25 ...
Jane C Burns   +11 more
doaj   +1 more source

A tropical mechanism for Northern Hemisphere deglaciation [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2003
We investigate the role of the tropics in the melting and reforming of the Laurentide ice sheet on glacial timescales using an atmospheric general circulation model. It is found that warming of tropical sea surface temperatures (SSTs) from glacial boundary conditions, as observed at the end of glacial periods, causes a large increase in summer ...
Rodgers, K.   +4 more
openaire   +5 more sources

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