Why has this happened now?
Australia heated up »þ³Ú¿©¼ºÀÇ·ù=»þ³Ú¿©¼ºÀÇ·ù this week as a mass of hot air swept east across the continent, with meteorologists forecasting "severe to À̹ÌÅ×À̼Çsa±Þ À̹ÌÅ×À̼ǼîÇÎ ·¹Çø®Ä«¼îÇθô=À̹ÌÅ×À̼Çsa±Þ À̹ÌÅ×À̼ǼîÇÎ ·¹Çø®Ä«¼îÇθô extreme heatwave conditions".
Several individual ¿ë¹®µ¿¿ë´ÞÀÌ»ç heat records for towns and cities have already been shattered. On Tuesday, places across the nation's centre recorded temperatures ¿©ÀÚ·¹Çø®Ä«»çÀÌÆ®=¿©ÀÚ·¹Çø®Ä«»çÀÌÆ® above 45C.
At the start of the week, Perth, the Àá½ÇÀÌ»ñÁü¼¾ÅÍ capital of Western Australia, recorded three days in a row above 40C - a record for December.
The dominant climate driver ¿À»êÆ÷ÀåÀÌ»ç behind the heat has been a positive Indian Ocean Dipole (IOD) - an event where sea surface temperatures kgitbank=¾ÆÀÌÆ¼¹ðÅ©Á¾·ÎÁ¡ are warmer in the western half of the ocean, cooler in the east.
The difference between the two temperatures ´ä·Ê¶±=´ä·Êǰ ´ä·Ê¶± Çà»ç¶± ±îÄ¡¶± is currently the strongest in 60 years. The warmer waters cause higher-than-average rains in the western Indian Ocean region, leading to flooding, and drier conditions across South East Asia and Australia.
|
( 2019-12-18 16:15:02 Á¶È¸:782 ) |
|