Results 51 to 60 of about 1,640,713 (238)

Contrasting Heatwave Regimes in Dry and Humid Subtropical Mexico: A Station‐Based Probabilistic Assessment

International Journal of Climatology, EarlyView.
Heatwaves have intensified under a warming climate, producing substantial environmental and societal impacts. This study characterizes heatwave regimes in two contrasting regions of Mexico using a percentile‐based threshold and a Poisson distribution framework.
Jorge Cortés‐Ramos, Ana Teresa Mendoza‐Rosas, Victor Manuel Torres‐Puente, José Francisco León‐Cruz, Evi Becerra‐Acosta, Arturo I. Quintanar, David Romero   +6 more
wiley   +1 more source

The Prediction, Verification, and Significance of Flank Jets at Mid-Ocean Ridges [PDF]

Oceanography, 2012
One aspect of ocean flow over mid-ocean ridges that has escaped much attention is the capacity of a ridge to convert oscillatory flows into unidirectional flows.
J. William Lavelle, Andreas M. Thurnherr, Lauren S. Mullineaux, Dennis J. McGillicuddy Jr., James R. Ledwell   +4 more
doaj  

Crustal accretion at the Reykjanes Ridge, 61°–62°N [PDF]

We report results of a seismic, gravity, and magnetic survey of the Reykjanes Ridge spreading center at 61°–62°N, about 600 km from the center of the Iceland mantle plume.
Smallwood, John R., White, Robert S.
core   +1 more source

Microdistribution of Faunal Assemblages at Deep-Sea Hydrothermal Vents in the Southern Ocean [PDF]

, 2012
Chemosynthetic primary production by microbes supports abundant faunal assemblages at deep-sea hydrothermal vents, with zonation of invertebrate species typically occurring along physico-chemical gradients.
Tyler, PA, Rogers, AD, Huvenne, Veerle A.I., Katrin Linse, Rogers Alex D., Sweeting Christopher J., Jonathan T Copley, Alex D Rogers, Linse, K, William D. K. Reid, Leigh Marsh, Christopher J Sweeting, Paul A Tyler, Veerle A I Huvenne, Reid, WD, Christopher J. Sweeting, Linse, Katrin, Rogers, Alex D., Copley, JT, Tyler Paul A., William D K Reid, Sweeting, CJ, Copley Jonathan T., Sweeting, Christopher J., Huvenne, VA, Marsh, Leigh, Alex D. Rogers, Copley, Jonathan T., Reid, William D.K., Tyler, Paul A., Marsh, L, Rogers, Alex, Veerle A. I. Huvenne, Linse Katrin, Jonathan T. Copley, Huvenne Veerle A. I., Paul A. Tyler, Marsh Leigh, Reid William D. K.   +38 more
core   +2 more sources

Added Value of CESM‐Driven WRF for Mean and Extreme Precipitation Over Complex Terrain in Southwest Asia

International Journal of Climatology, EarlyView.
Southwest Asia remains understudied in high‐resolution regional climate modelling despite its climatic sensitivity and complex orography. We compare WRF (10 km), CESM (~2°), and ERA5 (0.25°) for 1950–2002, with supplementary validation against CHIRPS and PERSIANN‐CDR. WRF corrects the unrealistic summer precipitation overestimation of CESM and improves
Markella Bouchorikou, Thi Quynh Trang Nguyen, Dominik Fleitmann, Morteza Djamali, Martina Messmer, Christoph C. Raible   +5 more
wiley   +1 more source

Global variation of seismic energy release with oceanic lithosphere age

Scientific Reports, 2021
Variations in Mid Ocean Ridge seismicity with age provide a new tool to understand the thermal evolution of the oceanic lithosphere. The sum of seismic energy released by earthquakes during a time, and for an area, is proportional to its lithospheric age.
Nicolás Pinzón, Carlos A. Vargas
doaj   +1 more source

Temperatures in ambient mantle and plumes: Constraints from basalts, picrites, and komatiites [PDF]

, 2006
Several methods have been developed to assess the thermal state of the mantle below oceanic ridges, islands, and plateaus, on the basis of the petrology and geochemistry of erupted lavas. One leads to the conclusion that mantle potential temperature (i.e.
Lesher, C. M., P. D. Asimow (4380079), Niu, Yaoling, A. D. Saunders (7585886), Lesher, C.M., Arndt, N., Herzberg, C., C. Herzberg (10061344), Fitton, J.G., Fitton, J. G., Asimow, Paul D., Y. L. Niu (10061347), C. M. Lesher (7733825), Asimow, P.D., J. G. Fitton (7585871), Saunders, A.D., Saunders, A. D., Arndt, Nicholas, N. Arndt (8870258), Michael Cheadle (10060309), Cheadle, M. J., Cheadle, M.J., Niu, Y. L., Niu, Y., Asimow, P. D., Cheadle, Michael   +25 more
core   +1 more source

New geochronological constraints on Late Pleistocene glaciation in the southern Cadí Massif, SE Pyrenees

Journal of Quaternary Science, EarlyView.
ABSTRACT The Cadí Massif (42°17′09″ N, 1°38′11″ E; 2649 m a.s.l.) in the southeastern Pyrenees preserves clear evidence of Late Pleistocene glaciation, although previous research has focused almost exclusively on its northern slope. By contrast, the southern slope has remained largely unexplored.
M. Oliva, J. Ventura, A. Çiner, M. A. Sarıkaya, J. Bonsoms, K. M. Wilcken   +5 more
wiley   +1 more source

The Mantle Fe3+/ΣFe Ratio Has Doubled Since the Early Archean

Nature Communications
How mantle redox state developed, particularly the mantle source associated with mid-ocean ridge-like settings, remains a subject of ongoing debate. Here, we employ thermodynamic-thermomechanical numerical simulations to explore the redox properties of ...
Xiao-Xi Zhu, Wen-Yong Duan, Taras Gerya, Xin Zhou, Jia-Cheng Tian   +4 more
doaj   +1 more source

Lava Geochemistry as a Probe into Crustal Formation at the East Pacific Rise [PDF]

Oceanography, 2012
Basalt lavas comprise the greatest volume of volcanic rocks on Earth, and most of them erupt along the world's mid-ocean ridges (MORs). These MOR basalts (MORBs) are generally thought to be relatively homogeneous in composition over large segments of the
Michael R. Perfit, V. Dorsey Wanless, W. Ian Ridley, Emily M. Klein, Matthew C. Smith, Adam R. Goss, Jillian S. Hinds, Scott W. Kutza, Daniel J. Fornari   +8 more
doaj