In 2006 and 2007 fall, two pIOD happened during two consecutive years. This is unprecedented. The 2006 IOD is stronger, it caused severe drought in EIO and Indonesia, and floods in South Indian, WIO, and East Africa. Warm and dry anomalies appeared in East Asia and Australia. The 2007 IOD is weak and peculiar in that it co-occurred with a La Nina in the Pacific. Even though the IOD signal is weak, you can see the similar atmospheric response: dry in the EIO and Indonesia, and floods in the western IO and East Africa. Australia again suffered from warm and dry climate. It actually caused a big loss in the SE Australia.