Linkages between atmospheric circulation, climate and streamflow in the northern North Atlantic : research prospects
Anomalie climatique ; Atlantique ; Atlantique Nord ; Canada ; Circulation atmosphérique ; Climat ; Ecoulement fluvial ; Etats-Unis ; Europe du Nord ; Interaction océan-atmosphère ; Islande ; Modèle ; Oscillation climatique ; Précipitation
Atlantic Ocean ; Atmospheric circulation ; Canada ; Climate ; Climate oscillation ; Climatic anomaly ; Iceland ; Model ; North Atlantic Ocean ; Northern Europe ; Ocean atmosphere interaction ; Precipitation ; Stream flow ; United States of America
The main focus lies with climatic and hydrologic implications of the major circulation patterns in the northern North Atlantic, namely the North Atlantic Oscillation (NAO) and Arctic Oscillation (AO). The studies reviewed here reveal key
relationships between circulation, climate and streamflow across the northern North Atlantic, allowing the construction of a simple conceptual model for this system. To help promote a better understanding of the system, several research gaps are identified
L'A. s'élève contre l'usage fréquent aux Etats-Unis des expressions Middle Atlantic Bight et South Atlantic Bight pour désigner la côte des Middle Atlantic States et celle des états du Sud-Est, de la Caroline du Nord à la Floride. Les termes
employés conduisent à des aberrations dans les indexations par ordinateur. Il propose de leur subsistuer les formules : Off the Middle Atlantic States et Coastal Waters of the Southern US Atlantic States. - (FC)
Afrique ; Atlantique ; Atlantique Nord ; Atlantique Sud ; Dynamique de l'atmosphère ; Eau de fonte ; Eau de surface ; Gradient thermique ; Holocène ; Interaction océan-atmosphère ; Mousson ; Paléoclimat ; Précipitation ; Réchauffement climatique
Africa ; Atlantic Ocean ; Atmospheric dynamics ; Climatic warming ; Holocene ; Meltwater ; Monsoon ; North Atlantic Ocean ; Ocean atmosphere interaction ; Palaeoclimate ; Precipitation ; South Atlantic Ocean ; Surface temperature ; Surface water
The deglacial pattern of a high-resolution alkenone-derived temperature record from the southeastern tropical Atlantic was compared with one from the northeastern subtropical Atlantic. During Termination 1b, surface waters in the eastern tropical
Atlantic (6°S) reached modern temperatures, whereas those in the subtropical northeastern Atlantic (21°N) were still considerably colder than today. This asymmetrical warming may reflect meltwater-induced reductions in the northward heat transport and helps
Simulations of the response of the ocean waves in the North Atlantic and North Sea to CO2 doubling in the atmosphere
Atlantique ; Atlantique Nord ; Changement global ; Modèle ; Réchauffement climatique ; Simulation ; Vent
Atlantic Ocean ; Climatic warming ; Global change ; Model ; North Atlantic Ocean ; Simulation ; Wind
Le réchauffement consécutif à un doublement de la concentration du CO2 dans l'atmosphère pourrait déterminer, sur l'Atlantique nord, une fréquence accrue des vents de secteur NW. Mais cet effet reste modeste, donc discutable, en regard de l'ampleur
L'Oscillation de l'Atlantique Nord est une composante importante de la variabilité naturelle du climat. Cet article analyse brièvement les tendances et la variabilité de ce phénomène, ses impacts sur le climat, la prédiction du phénomène et les
Bau der Lithosphäre in der Ubergangszone von der Mitteleuropäischen Senke zum Atlantischen Ozean. (Structure of the lithosphère in the transition zone between the Central-European depression and Atlantic Ocean)
Atlantique ; Atlantique Nord-Est ; Europe ; Europe centrale ; Europe du nord ; Géographie physique ; Géophysique ; Interface terre-océan ; Lithosphère
Geodynamical processes and interrelations between the opening of the Atlantic ocean, the development of transition zone and the Central-European depression are analyzed by means of investigations of the transition zone between the Central-European
depression and the Atlantic ocean. A scheme of the depths of the asthenospere-lithospere border is discussed. (HL).
Basalt magma sources during the opening of the North Atlantic
Atlantique ; Atlantique, Nord ; Basalte ; Ere tertiaire ; Géographie physique ; Magmatisme ; Origine ; Tectonique de plaques ; Tectonique globale ; Volcanisme
The mantle that supplied basalts to the North Atlantic Tertiary province at the time of continental breakup was isotopically similar to the present-day sub-oceanic mantle. There is no evidence for undepleted source regions beneath the continent
Two major meltwater events are documented in cores from the NW Labrador Sea. These meltwater events coincide with Heinrich (H) layers 1 and 2 from North Atlantic sediments. The AA. hypothesize that δ18O records from these sites close to the former
ice margin should indicate the largest depletion due to meltwater of all North Atlantic sites.
Comparison between satellite and ship measurements of sea surface temperature in the north-east Atlantic Ocean in Special issue : Applications of AVHRR data.