Results 21 to 30 of about 1,647,626 (210)

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

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

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

High-precision radiocarbon measurements of contemporaneous tree-ring wood from the British Isles and New Zealand: AD 1850-950. [PDF]

open access: yes, 2002
The University of Waikato, Hamilton, New Zealand and The Queen's University of Belfast, Northern Ireland radiocarbon dating laboratories have undertaken a series of high-precision measurements on decadal samples of dendrochronologically dated oak ...
Palmer, Jonathan G.   +17 more
core   +1 more source

Storm-Time Behaviour of Meso-Scale Field-Aligned Currents: Case Study with Three Geomagnetic Storm Events

open access: yesJournal of Astronomy and Space Sciences, 2019
Challenging Minisatellite Payload (CHAMP) satellite magnetic data are used to investigate the latitudinal variation of the storm-time meso-scale field-aligned currents by defining a new metric called the FAC range.
Adero Ochieng Awuor   +2 more
doaj   +1 more source

Ice particle production in mid-level stratiform mixed-phase clouds observed with collocated A-Train measurements [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
Collocated A-Train CloudSat radar and CALIPSO lidar measurements between 2006 and 2010 are analyzed to study primary ice particle production characteristics in mid-level stratiform mixed-phase clouds on a global scale.
D. Zhang   +6 more
doaj   +1 more source

FOREST CARBON SINKS IN THE NORTHERN HEMISPHERE

open access: yesEcological Applications, 2002
There is general agreement that terrestrial systems in the Northern Hemisphere provide a significant sink for atmospheric CO2; however, estimates of the magnitude and distribution of this sink vary greatly. National forest inventories provide strong, measurement-based constraints on the magnitude of net forest carbon uptake.
Goodale, C.L.   +12 more
openaire   +3 more sources

Synthesis of the Northern Hemisphere of Amphidinolide H2 [PDF]

open access: yesSynthesis, 2006
The stereoselective synthesis of a fully functionalized northern hemisphere of the marine natural product amphidinolide H2 is described. A vinylogous Mukaiyama aldol reaction and enzymatic desymmetrization of a meso compound are the key steps in the fragment syntheses. A stereoselective acetate aldol coupling and a 1,3-anti-reduction of the resulting β-
Liesener, F.P., Jannsen, U., Kalesse, M.
openaire   +2 more sources

On the characteristics of astronomical refraction in the northern hemisphere [PDF]

open access: yesSymposium - International Astronomical Union, 1979
The astronomical refraction mainly depends on the vertical structure or the height profile of atmospheric density. Concerning the vertical structure of atmospheric density, various hypotheses were presented during the last century. Among them Newton's hypothesis of equal temperature and Ivory's one that temperature diminishes at a uniform rate with ...
C. Sugawa, N. Kikuchi
openaire   +1 more source

Mountain uplift and the glaciation of North America – a sensitivity study [PDF]

open access: yes, 2010
The Miocene (24 to 5 million years ago) wasa period of relative global warmth compared to the Quaternary(2 million years ago to present; e.g. Zachos et al.,2001) and was characterised by the intermittent glaciationof Antarctica only.
Lunt, D.J.   +11 more
core   +2 more sources

Home - About - Disclaimer - Privacy