Scientific Investigations Report 2006–5209
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5209
Table 3. Spatial extent of extreme water-quality conditions in Upper Klamath Lake, Oregon, 2002–04.
[Abbreviations: mg/L, milligram per liter. Symbol: <, less than]
| Julian week |
Spatial extent of extreme conditions (square kilometers) |
||
|---|---|---|---|
| 2002 | 2003 | 2004 | |
| Median dissolved oxygen <2 mg/L | |||
| 29 | 0 | 0 | 0 |
| 30 | 0 | 0 | 0 |
| 31 | 0 | 22 | 0 |
| 32 | 0 | 0 | 0 |
| 33 | 0 | 0 | <1 |
| 34 | 0 | 0 | 1 |
| Median dissolved oxygen <4 mg/L | |||
| 29 | 0 | 3 | 0 |
| 30 | 0 | 0 | <1 |
| 31 | 11 | 39 | 2 |