Dissolved Oxygen Maps for Summer 1999
Six surveys were conducted between June 22 and September 3 in the summer of 1999. The maximum area affected by hypoxia during this time was 314 square kilometers (121 square miles). The entire hypoxic event lasted for 50 days from July 2 to August 21.
(Select map below to link to a larger image)
June 22-25, 1999 |
July 6-8, 1999 |
July 20-22, 1999 |
August 2-5, 1999 |
August 17-19, 1999 |
August 31-September 3, 1999 |