Results 11 to 20 of about 1,602,676 (257)

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

Implications of changes in the Northern Hemisphere circulation for the detection of anthropogenic climate change [PDF]

open access: yes, 2000
The first principal component of Northern Hemisphere sea level pressure, known as the Arctic Oscillation (AO) index, has increased significantly in recent winters, and this change is associated with ∼30% of Northern Hemisphere January–March warming.
Hegerl, GC   +12 more
core   +1 more source

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

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

Objective determination of the extratropical transition of tropical cyclones in the Northern Hemisphere [PDF]

open access: yes, 2015
Extratropical transition (ET) has eluded objective identification since the realisation of its existence in the 1970s. Recent advances in numerical, computational models have provided data of higher resolution than previously available.
Joshua Studholme   +8 more
core   +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

Northern Hemisphere Glaciation during the Globally Warm Early Late Pliocene [PDF]

open access: yes, 2013
The early Late Pliocene (3.6 to ∼3.0 million years ago) is the last extended interval in Earth's history when atmospheric CO<sub>2</sub> concentrations were comparable to today's and global climate was warmer.
Head, Martin J.   +39 more
core   +1 more source

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

SHCal13 Southern Hemisphere calibration, 0–50,000 years cal BP [PDF]

open access: yes, 2013
The Southern Hemisphere SHCal04 radiocarbon calibration curve has been updated with the addition of new data sets extending measurements to 2145 cal BP and including the ANSTO Younger Dryas Huon pine data set.
Palmer, Jonathan G.   +16 more
core   +1 more source

Bayesian evaluation of the southern hemisphere radiocarbon offset during the holocene [PDF]

open access: yes, 2009
While an interhemispheric offset in atmospheric radiocarbon levels from AD 1950–950 is now well established, its existence earlier in the Holocene is less clear, with some studies reporting globally uniform 14C levels while others finding Southern ...
Turney, Chris S.M.   +8 more
core   +1 more source

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