Table 3.
Comparison of depression delineation results for Pipestem watershed using level-set method with different parameters
Parameters | Run time (s) | Number of depressions | Median size (m2) | Median volume (m3) | Median depth (m) |
---|---|---|---|---|---|
Min size = 100 m2; interval = 0.2 m | 281.0 | 54,849 | 2,034 | 266 | 0.25 |
Min size = 500 m2; interval = 0.2 m | 270.0 | 43,606 | 2,628 | 395 | 0.30 |
Min size = 1,000 m2; interval = 0.2 m | 253.4 | 39,897 | 2,835 | 448 | 0.31 |
Min size = 2,000 m2; interval = 0.2 m | 225.5 | 24,564 | 5,409 | 1,062 | 0.37 |
Min size = 100 m2; interval = 0.4 m | 175.2 | 42,813 | 2,367 | 347 | 0.29 |
Min size = 500 m2; interval = 0.4 m | 167.9 | 38,490 | 2,646 | 414 | 0.31 |
Min size = 1,000 m2; interval = 0.4 m | 167.1 | 36,800 | 2,754 | 439 | 0.32 |
Min size = 2,000 m2; interval = 0.4 m | 163.0 | 22,672 | 5,220 | 1,041 | 0.37 |