9C.9
A warm event at Patriot Hills, Antarctica: An ENSO related Phenomenon?
Jorge F. Carrasco, Direccion Meteorologica de Chile, Santiago, Chile; and G. Casassa and A. Rivera
Between 6 and 9 December 1997, the surface air temperature increase up to 3 C. The ice surface field used as runway for large aircraft melted forming a slippery layer of iceand water. The ice along the hills melted forming a small lake at the foot of the slope. This is the first time after three consecutive campaigns, for almost the same period, that temperatures above cero are registered. El Niņo southern oscillation (ENSO) was under way during 1997. The warming observed at Patriot Hills can be related with large-scale circulation anomalies associated with ENSO. Here, that possibility is analyzed.
Session 9C, Antarctic Meteorology and Climatology (parallel with Sessions 9a and 9b)
Tuesday, 6 April 1999, 8:30 AM-11:30 AM
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