Linkages between atmospheric circulation, climate and streamflow in the northern NorthAtlantic : research prospects
Atlantic Ocean ; Atmospheric circulation ; Canada ; Climate ; Climate oscillation ; Climatic anomaly ; Iceland ; Model ; NorthAtlantic Ocean ; Northern Europe ; Ocean atmosphere interaction ; Precipitation ; Stream flow ; United States of America
Anomalie climatique ; Atlantique ; Atlantique Nord ; Canada ; Circulation atmosphérique ; Climat ; Ecoulement fluvial ; Etats-Unis ; Europe du Nord ; Interaction océan-atmosphère ; Islande ; Modèle ; Oscillation climatique ; Précipitation
The main focus lies with climatic and hydrologic implications of the major circulation patterns in the northern NorthAtlantic, namely the NorthAtlanticOscillation (NAO) and Arctic Oscillation (AO). The studies reviewed here reveal key
relationships between circulation, climate and streamflow across the northern NorthAtlantic, 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'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
Air temperature ; Atlantic Ocean ; Atmospheric circulation ; Climate oscillation ; Climatic anomaly ; Heat exchange ; NorthAtlantic Ocean ; Ocean ; Ocean atmosphere interaction ; Surface temperature
Anomalie climatique ; Atlantique ; Atlantique Nord ; Circulation atmosphérique ; Echange thermique ; Interaction océan-atmosphère ; Océan ; Oscillation climatique ; Température de l'air ; Température de surface
Relation entre la température de la surface de l'océan et les phases de cette oscillation. Effet de l'échange thermique de l'océan avec l'atmosphère sur la formation des phases de l'oscillation. Rôle des processus synoptiques dans la formation de la
Correlation of Late-Pleistocene lake-level oscillations in Mono Lake, California, with NorthAtlantic climate events
C 14 dating ; California ; Climatic variation ; Correlation ; Lacustrine sediment ; Lake level ; Marine sediment ; NorthAtlantic Ocean ; Oxygen 18 ; Palaeogeography ; Pleistocene ; Quaternary ; United States of America
In this study, the AA. have employed paleomagnetic secular variation (PSV) data obtained on NorthAtlantic and Mono Lake sediments as well as O 18 and total inorganic carbon (TIC) measurements of Mono Lake sediments to show that lowstands of Mono
in the climate of the NorthAtlantic region.
Lake occurred during Heinrich events H1, H2, and H4. These results enforce the concept that relatively dry-wet oscillations in the climate of the Great Basin of the western United States occurred at approximately the same times as cold-warm oscillations
, in situ assessment of the phase relationship between the NorthAtlantic climate system and vegetation changes on the adjacent landmass. This demonstrates for the first time that variability in NW Iberian tree population closely tracked millennial-scale
A deep-sea sediment core from the western Portuguese margin has provided a continuous, high-resolution record of millennial-scale climatic oscillations during the interval 9000-65,000 yr B.P. Pollen analysis of the same sequence allows direct
A partir de l'étude des changements paléohydrologiques enregistrés dans les remplissages des lacs du Jura, proposition d'une reconstitution détaillée des oscillations climatiques de l' Allerød aux débuts de l'Holocène. Mise en évidence d'une
corrélation entre les changements paléohydrologiques reconnus dans le Jura et des oscillations plus globales du climat.
margin. For the first time it is possible to see how the Allerød-Younger Dryas-Preboreal oscillation affected a terrestrial environment in the middle of the NorthAtlantic.
Winter Atlantic climate and snowfall in the south and central Appalachians
Appalachian Mountains ; Atmospheric circulation ; Climate oscillation ; Climatic variability ; Cyclone ; Mountain ; NorthAtlantic Ocean ; Ocean atmosphere interaction ; Season ; Snow ; Surface temperature ; Teleconnection ; United States of America
Appalachian Mountains ; Atlantique Nord ; Circulation atmosphérique ; Cyclone ; Etats-Unis ; Etats-Unis de l'Est ; Hiver ; Interaction océan-atmosphère ; Montagne ; Neige ; Oscillation climatique ; Prévision météorologique ; Saison ; Température de
Winter snowfall over much of the south and central Appalachian region shows a significant inverse association with a winter index of the NorthAtlanticOscillation (NAO) teleconnection pattern. The snowiest winters coincide with the negative phase
Monthly cool-season salinity over the period 1958 to 1991 period is analyzed for the Chesapeake Bay (CB), and the salinity variations are associated with low-frequency 500 hPa flow variations and with extremes of the Southern Oscillation (SO
-Southern Oscillation (ENSO) forecasts may be used by planners and ecologists in the CB area to mitigate ENSO impacts.
of the NorthAtlanticOscillation (NAO) index (extreme positive to extreme negative) and by extreme changes in annual sea ice extent across the Greenland Sea. It is suggested that this unusual relationship may be explained through the important role of sea ice
extent across the Greenland Sea affecting the extent of the polar anticyclone and hence the position of the NorthAtlantic storm track. By contrast, the later part of this time interval (AD 1894-1905) was characterized by very few winter gales
[b2] Environment Research Institute, North Highland College, Thurso, Royaume-Uni
Anomalie climatique ; Climatologie appliquée ; Climatologie synoptique ; Dynamique de l'atmosphère ; El Niño ; Interaction océan-atmosphère ; Oscillation nord-atlantique ; Type de temps ; Téléconnexion ; Variabilité climatique
of teleconnections : the NorthAtlantic circulation, largely focusing on the NorthAtlanticOscillation; and the north and tropical Pacific circulation, as manifest in El Ninõ–Southern Oscillation, the Pacific North American pattern, and the Pacific Decadal
Oscillation. In each of these two regions, they highlight the major goals and results of recent synoptic research.
Arctic Region ; Atlantic Ocean ; C 14 dating ; Climatic variation ; Cold area ; Ice sheet ; Meltwater ; NorthAtlantic Ocean ; Quaternary
climate in the NorthAtlantic region by controlling variable fluxes of icebergs and meltwater, as well as meltwater routing.
The A. proposes that rapid oscillations of the Laurentide ice sheet margin are not climatic in origin but instead reflect inherent instability associated with deforming sediment dynamics. Such behavior would have played a critical role in affecting
The influence of the El Niño-Southern Oscillation and other teleconnections on winter storms in the North American Northeast - A case study
Atmospheric dynamics ; Climate oscillation ; El Niño ; Hail ; North America ; Ocean atmosphere interaction ; Rainstorm ; Surface temperature ; Teleconnection ; Weather type ; Winter
Amérique du Nord ; Blizzard ; Dynamique de l'atmosphère ; El Niño ; Grêle ; Hiver ; Interaction océan-atmosphère ; Orage ; Oscillation climatique ; Température de surface ; Type de temps ; Téléconnexion
via a case study comparison between the Blizzard of 1996 and the Ice Storm of 1998. These 2 storms were selected because they occurred during opposing ENSO phases. The effects of teleconnections and sea surface temperature anomalies in the North
Atlantic Ocean will also be examined, especially in terms of the ways in which blocking patterns and changes in the jet stream locations were influenced.
Mécanisme d'action de l'oscillation nord-atlantique sur la température et la salinité des eaux intermédiaires et profondes de l'Atlantique Nord subpolaire
Atlantic Ocean ; Climate oscillation ; Marine hydrology ; NorthAtlantic Ocean ; Salinity ; Subarctic area ; Water temperature
Atlantique ; Atlantique Nord ; Domaine subarctique ; Hydrologie marine ; Oscillation climatique ; Salinité ; Température de l'eau
Années 1958-1997 ; Anomalie climatique ; Atlantique ; Atlantique Nord ; Circulation atmosphérique ; Climat ; Cours d'eau ; Donnée climatique ; Douro ; Dynamique de l'atmosphère ; Europe ; Guadiana ; Interaction océan-atmosphère ; Oscillation
A partir de l'exploitation des données réanalysées de la période 1958-1997 provenant du NCEP (National Centres for Environmental Prediction), étude de l'influence spatio-temporelle de l'oscillation nord-atlantique sur le climat du continent européen.