Table 2 Statistics of the differences between gravimetric and GPS/levelling geoid undulations using rigorous orthometric heights, Bracketed values represent the differences using Helmert orthometric heights (units in cm)
From: Comparison of Helmert and rigorous orthometric heights over Japan
Region | Points | Minimum | Maximum | Mean | Std |
|---|---|---|---|---|---|
Hokkaido | 163 | −7.88 (−7.88) | 27.29 (27.54) | 6.73 (6.82) | 6.19 (6.22) |
North Honshu | 171 | −14.19 (−14.19) | 22.18 (22.18) | 5.95 (6.07) | 6.88 (6.90) |
Central Honshu | 163 | −7.81 (−7.81) | 36.67 (36.67) | 6.64 (7.70) | 6.86 (7.14) |
West Honshu | 158 | −8.97 (−8.98) | 21.16 (21.16) | −1.05 (−1.04) | 4.92 (4.93) |
Shikoku | 56 | −14.27 (−14.27) | 16.98 (16.98) | −0.36 (−0.34) | 6.53 (6.55) |
Kyushu | 105 | −21.57 (−21.58) | 9.37 (9.37) | −2.87 (−2.77) | 5.07 (5.18) |
Whole | 816 | −21.57 (−21.58) | 36.67 (36.67) | 3.32 (3.59) | 7.30 (7.48) |