Although the original ATOC program formally ended some years ago, the acoustic transmissions that began in the mid- 1990s have continued into 2005, showing that the observations are sustainable on even a modest budget.
Although the original ATOC program formally ended some years ago, the acoustic transmissions that began in the mid- 1990s have continued through Fall 2006, when agreed-upon environmental protocols ended. The decade-long deployment of the acoustic source shows that the observations are sustainable on even a modest budget.