Large Scale Control on the Patagonia Climate
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منابع مشابه
Spatiotemporal Influences of Climate on Altitudinal Treeline in Northern Patagonia
Tree radial growth and seedling establishment of Nothofagus pumilio at alpine treeline near 408 S latitude in Chile and Argentina show timeand site-dependent relationships to interannual-and decadal-scale climate variation. Six treelines were sampled at two spatial scales corresponding to regional and local climates. A shift in climate from cool–wet to warm–dry conditions facilitated comparison...
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Glaciers are strongly retreating and thinning in Patagonia. We present new inferences about the climatic situation and the surface mass balance on the Northern Patagonia Icefield in the past and the future using a combined modeling approach. The simulations are driven by NCAR/NCEP Reanalysis and ECHAM5 data, which were physically downscaled using the Weather Research and Forecasting regional cl...
متن کاملInterpretation of recent Southern Hemisphere climate change.
Climate variability in the high-latitude Southern Hemisphere (SH) is dominated by the SH annular mode, a large-scale pattern of variability characterized by fluctuations in the strength of the circumpolar vortex. We present evidence that recent trends in the SH tropospheric circulation can be interpreted as a bias toward the high-index polarity of this pattern, with stronger westerly flow encir...
متن کاملFire history in western Patagonia from paired tree-ring fire-scar and charcoal records
Fire history reconstructions are typically based on tree ages and tree-ring fire scars or on charcoal in sedimentary records from lakes or bogs, but rarely on both. In this study of fire history in western Patagonia (47–48 S) in southern South America (SSA) we compared three sedimentary charcoal records collected in bogs with tree-ring firescar data collected at 13 nearby sample sites. We exami...
متن کاملConference and Workshop Climate Impacts on Glaciers and Biosphere in Fuego-Patagonia
The Patagonian Icefields are among the highest latitude and most sensitive icefields in the Southern Hemisphere, and are responding sensitively to climate. Their response to rapid climate changes during the Last Termination and during Holocene palaeoclimatic fluctuations has the potential to elucidate changes in large scale atmospheric circulation as well as aid better predictions of their futu...
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تاریخ انتشار 2012