Results 21 to 30 of about 85,724 (312)

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

, 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., Turney, Chris S.M., Zimmerman, Susan R. H., Reimer, Paula J., Guilderson, Thomas P., Heaton, Timothy J., Zimmerman, Susan R H, Niu, Mu, Turney, Christian S. M.; id_orcid, Blackwell, Paul G., Buck, Caitlin E., Turney, Christian S M, Hogg, Alan G., Reimer, Paula J.; id_orcid, Hua, Quan, Reimer, Ron W., Hogg, Alan. G.   +16 more
core   +1 more source

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

, 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., Lunt, D. J., G. L. Foster, D. J. Lunt, Parrish, R.R., Parrish, RR, Foster, G.L., Lunt, DJ, Parrish, R. R., R. R. Parrish, Foster, G. L., Foster, GL   +11 more
core   +1 more source

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

PLoS 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, Lauren Herzog, Olivia Fabri, Adriana H Tremoulet, Xavier Rodó, Ritei Uehara, David Burgner, Emelia Bainto, David Pierce, Mary Tyree, Daniel Cayan, Kawasaki Disease Global Climate Consortium   +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]

, 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., Baillie, Michael, Reimer, Paula J., Baillie, M. L., Hogg, A.G., Reimer, Paula; id_orcid, Palmer, J. G., Baillie, Mike G.L., McCormac, Gerry, McCormac, F.G., Hogg, Alan G., Higham, Thomas F.G., Higham, T.F.G., Palmer, J.G., Hogg, A. G., McCormac, F. G., Higham, T. F. G., Reimer, P. J.   +17 more
core   +1 more source

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

Journal 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, Paul Baki, Joseph Olwendo   +2 more
doaj   +1 more source

A reconstructed Siberian High index since A. D. 1599 from Eurasian and North American tree rings [PDF]

, 2005
The long-term variability of the Siberian High, the dominant Northern Hemisphere anticyclone during winter, is largely unknown. To investigate how this feature varied prior to the instrumental record, we present a reconstruction of a Dec-Feb Siberian ...
Panagiotopoulos, F., Jacoby, G, Panagiotopoulos, F, Wilson, R., Wilson, Rob, Jacoby, G., D'Arrigo, R, D'Arrigo, R.   +7 more
core   +1 more source

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

Atmospheric 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, Z. Wang, P. Kollias, P. Kollias, A. M. Vogelmann, K. Yang, T. Luo   +6 more
doaj   +1 more source

A tropical mechanism for Northern Hemisphere deglaciation [PDF]

Geochemistry, 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. B., Lohmann, G., Lorenz, S., Schneider, R., Henderson, G. M.   +4 more
openaire   +4 more sources

FOREST CARBON SINKS IN THE NORTHERN HEMISPHERE

Ecological 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., Apps, M.J., Birdsey, R.A., Field, C.B., Heath, L.S., Houghton, R.A., Jenkins, J.C., Kohlmaier, G.H., Kurz, W., Liu, S.R., Nabuurs, G.J., Nilsson, S., Shvidenko, A.Z.   +12 more
openaire   +3 more sources

Synthesis of the Northern Hemisphere of Amphidinolide H2 [PDF]

Synthesis, 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