Results 21 to 30 of about 303,742 (304)

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

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

Variations of radiocarbon in tree rings: southern hemisphere offset preliminary results [PDF]

, 1998
The Queen's University of Belfast, Northern Ireland and University of Waikato, Hamilton, New Zealand radiocarbon laboratories have undertaken a series of high-precision measurements on decadal samples of dendrochronologically dated oak (Quercus patrea ...
Baillie, Mike G.L., Brown, David, Higham, Thomas F.G., Hogg, Alan G., Hoper, S.T., McCormac, F.G., Palmer, Jonathan G., Pilcher, J.R., Xiong, Limin   +8 more
core   +2 more sources

South-north asymmetry of field-aligned currents in the magnetotail observed by Cluster [PDF]

, 2010
We statistically investigated features of the field-aligned current (FAC) distribution in plasma sheet boundary layers between 17 and 19 RE in the magnetotail using the curlometer technique to calculate the current from four-point magnetic field ...
Cheng, Z. W., Dandouras, I., Dunlop, M., Fazakerley, A., Grocott, A., Kistler, L. M., Lahiff, A. D., Lester, M., Liu, Z. X., Lucek, E., Lui, A. T. Y., Mouikis, C., Pu, Z. Y., Rème, H., Shen, C., Shi, J. K., Taylor, M. G. G. T., Torkar, K., Volwerk, M., Walsh, A. P., Zhang, T. L.   +20 more
core   +1 more source

Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry

, 2011
We study the latitudinal distribution of sunspots observed from 1874 to 2009 using the center-of-latitude (COL). We calculate COL by taking the area-weighted mean latitude of sunspots for each calendar month.
Antalova, Antonucci, Ataç, Ataç, Babcock, Ballester, Berdyugina, Carbonell, Chang, Chang, Chang, Chang, Cho, Donner, Gigolashvili, Gigolashvili, Goel, Hathaway, Heon-Young Chang, Howard, Howe, Howe, Javaraiah, Javaraiah, Javaraiah, Javaraiah, Kane, Knaack, Knaack, Krivova, Leighton, Li, Li, Li, Li, Li, Li, Li, Li, Li, Li, Maunder, Miletskii, Mouradian, Norton, Oliver, Parker, Pelt, Press, Pulkkinen, Roy, Schlamminger, Solanki, Solanki, Swinson, Temmer, Temmer, Ternullo, Ternullo, Ternullo, Ternullo, Ternullo, Tritakis, Verma, Verma, Vizoso, Vizoso, Waldmeier, Waldmeier, White, Zaatri, Zolotova, Zolotova, Zolotova, Özgüç   +74 more
core   +1 more source

High Energy Neutrino Telescopes in the Northern Hemisphere [PDF]

, 2012
We review the status and results of the high energy neutrino telescopes in the Northern Hemisphere, namely ANTARES and Baikal (NT200+).Comment: Contribution to VLvNT 2011, to be published in NIM A, 6 pages, 8 ...
Abbasi, Abbasi, Abbasi, Abbasi, Abbasi, Abbasi, Achterberg, Ackermann, Adrián-Martínez, Ageron, Ageron, Aguilar, Aguilar, Aguilar, Aguilar, Ambrosio, Ambrosio, Ambrosio, Ambrosio, Amran, Avrovin, Avrovin, Avrovin, Aynutdinov, Aynutdinov, Aynutdinov, Aynutdinov, Bagduev, Bahcall, Balkanov, Belolaptikov, Boliev, Desai, Gonzalez-Garcia, Guetta, Juan José Hernández-Rey, Mannheim, Rhode, Roberts, Thrane, Vissani, Vissani, Waxman, Waxman   +43 more
core   +3 more sources

Forcing of Northern Hemisphere Climate Trends

Journal of the Atmospheric Sciences, 2003
The impact of observed global SST trends during the second half of the twentieth century on the Northern Hemisphere extratropical winter atmospheric circulation is investigated using ensembles of simulations with the Center for Ocean‐Land‐Atmosphere Studies (COLA) atmospheric GCM.
Schneider, E., Bengtsson, L., Hu, Z.
openaire   +2 more sources

Pre-LGM Northern Hemisphere ice sheet topography [PDF]

Climate of the Past, 2013
We here reconstruct the paleotopography of Northern Hemisphere ice sheets during the glacial maxima of marine isotope stages (MIS) 5b and 4.We employ a combined approach, blending geologically based reconstruction and numerical modeling, to arrive at ...
J. Kleman, J. Fastook, K. Ebert, J. Nilsson, R. Caballero   +4 more
doaj   +1 more source

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.
Blackwell, Paul G., Buck, Caitlin E., Guilderson, Thomas P., Heaton, Timothy J., Hogg, Alan G., Hua, Quan, Niu, Mu, Palmer, Jonathan G., Reimer, Paula J., Reimer, Ron W., Turney, Chris S.M., Zimmerman, Susan R. H.   +11 more
core   +2 more sources

Northern hemisphere photosynthetic trends 1982–99

Global Change Biology, 2002
AbstractWe examined trends in the averaged May–September AVHRR normalized difference vegetation index (NDVI) from 1982 to 1999 for the northern hemisphere. NDVI is closely related to the amount of absorbed photosynthetically active radiation; hence, trends in NDVI reflect trends in photosynthetic activity of land‐surface vegetation.
Daniel A. Slayback, Jorge E. Pinzon, Sietse O. Los, Compton J. Tucker   +3 more
openaire   +3 more sources