Year | Errors | Methods | ||||||
---|---|---|---|---|---|---|---|---|
2013 | Interpolation model | IDW | GPI | LPI | TSPLINE | OK | SK | UK |
Mean error | 0.17 | −0.73 | 0.14 | 0.02 | −0.04 | 0.02 | 0.03 | |
Root-mean-square (m) | 0.89 | 1.46 | 1.07 | 1.24 | 0.26 | 0.11 | 0.24 | |
R2 | 0.92 | 0.89 | 0.91 | 0.90 | 0.96 | 0.99 | 0.96 | |
2012 | Interpolation model | IDW | GPI | LPI | TSPLINE | OK | SK | UK |
Mean error | 0.11 | 0.79 | −0.08 | 0.04 | −0.10 | 0.03 | −0.09 | |
Root-mean-square (m) | 0.92 | 1.49 | 1.10 | 1.27 | 0.29 | 0.04 | 0.47 | |
R2 | 0.88 | 0.85 | 0.87 | 0.86 | 0.92 | 0.95 | 0.92 | |
2011 | Interpolation model | IDW | GPI | LPI | TSPLINE | OK | SK | UK |
Mean error | 0.19 | −0.71 | 0.16 | −0.04 | 0.02 | −0.01 | 0.01 | |
Root-mean-square (m) | 0.17 | 0.72 | 0.14 | 0.02 | 0.04 | 0.02 | 0.03 | |
R2 | 0.91 | 0.88 | 0.90 | 0.89 | 0.95 | 0.98 | 0.95 | |
2010 | Interpolation model | IDW | GPI | LPI | TSPLINE | OK | SK | UK |
Mean error | 0.19 | −0.82 | 0.18 | 0.02 | 0.04 | 0.04 | 0.03 | |
Root-mean-square (m) | 0.85 | 1.40 | 1.03 | 1.19 | 0.25 | 0.18 | 0.42 | |
R2 | 0.90 | 0.87 | 0.89 | 0.88 | 0.94 | 0.97 | 0.94 | |
2009 | Interpolation model | IDW | GPI | LPI | TSPLINE | OK | SK | UK |
Mean error | 0.14 | −0.77 | −0.06 | 0.07 | −0.07 | 0.05 | −0.06 | |
Root-mean-square (m) | 0.90 | 1.45 | 1.08 | 1.24 | 0.30 | 0.23 | 0.47 | |
R2 | 0.88 | 0.86 | 0.89 | 0.89 | 0.92 | 0.98 | 0.95 |