Portal de Periódicos da CAPES

Recent climate changes in southern Patagonia

1996; Volume: 14; Issue: 14 Linguagem: Inglês

0913-4190

Donangelo Teresa Ibarzabal Y, A J Hoffmann Jose, Renji Naruse,

Cryospheric studies and observations

Recent climate changes in the region east of the Southern Patagonia Icefield are shown by analyzing temperature and precipitation data at four stations in the Province of Santa Cruz (47°-52° S), southern Argentina. It became clear that trends of temperature change during the last half century were different from place to place, namely strong warming at Rio Gallegos, and weak warming at San Julian on the Atlantic coast and at Lago Argentino near Patagonian glaciers, while nearly stable at Puerto Deseado on the coast. Annual precipitation shows a decreasing trend at Lago Argentino, whereas an increasing trend at San Julian and an almost stable trend at Puerto Deseado. It was also recognized at Lago Argentino that temperature in the warm season has been slightly rising and year-to-year variations in precipitation were remarkable in the cold season.