Table 6 Efficiency comparison of LS-WPC and LS-PCS methods.
From: A new high-resolution global topographic factor dataset calculated based on SRTM
Sample Range | Method | Raster Number | Running Time(s) | Efficiency Improvement (%) | ||
|---|---|---|---|---|---|---|
Transforming Coordinate | Calculating LS | Total Time | Ratio | |||
1° × 1° | LS-PCS | 3499 × 4122 | 6.24 | 35.88 | 42.11 | 20.47 |
LS-WPC | 3601 × 3601 | 0.00 | 33.50 | 33.49 | ||
2° × 2° | LS-PCS | 7730 × 8839 | 27.66 | 189.97 | 217.64 | 22.04 |
LS-WPC | 7201 × 7201 | 0.00 | 169.67 | 169.67 | ||
3° × 3° | LS-PCS | 10541 × 12332 | 61.33 | 522.91 | 584.24 | 22.76 |
LS-WPC | 10801 × 10801 | 0.00 | 451.29 | 451.29 | ||
5° × 5° | LS-PCS | 17665 × 20462 | 252.43 | 1638.56 | 1890.99 | 25.52 |
LS-WPC | 18001 × 18001 | 0.00 | 1408.48 | 1408.48 | ||
10° × 10° | LS-PCS | 37765 × 44416 | 655.47 | 3979.17 | 4,634.64 | 19.71 |
LS-WPC | 36001 × 36001 | 0.00 | 3721.01 | 3721.01 | ||
14° × 14° | LS-PCS | 51664 × 62538 | 923.21 | 5960.43 | 6883.64 | 17.04 |
LS-WPC | 50401 × 50401 | 0.00 | 5710.69 | 5710.69 | ||
