Spatial Interpolation of Daily Rainfall Data for Local Climate Impact Assessment over Greater Sydney Region

Table 5

Mean rainfall (mm⋅yr⁻¹), rainfall erosivity (MJ⋅mm⋅ha⁻¹⋅hr⁻¹⋅yr⁻¹), hillslope erosion (tonnes⋅ha⁻¹⋅yr⁻¹), and their changes over the two contrasting periods (1990–2009 and 2040–2059). Change% is calculated as (Future − Recent)/Recent.

SPR name	Eastern/Inner	Northern	Northern Beaches	Southern	South Western	Western	All SPRs
Recent annual rainfall	1094.46	1120.51	1243.44	1142.75	851.60	948.59	946.18
Future annual rainfall	1516.21	1410.26	1643.75	1550.36	1043.67	1215.87	1202.27
Annual rainfall change (%)	38.25	25.73	32.14	35.17	21.72	26.92	25.83
Recent rainfall erosivity	3381.53	3480.30	3985.32	3534.32	2162.49	2722.00	2654.13
Future rainfall erosivity	6027.67	5481.52	6604.56	6222.66	3622.83	4261.81	4295.57
Rainfall erosivity change (%)	78.41	57.51	66.52	86.23	65.94	55.21	60.94
Recent hillslope erosion	0.99	8.48	8.54	4.97	3.22	8.41	6.79
Future hillslope erosion	2.05	13.57	14.57	9.82	6.00	13.56	11.04
Hillslope erosion change (%)	78.40	57.51	66.51	86.24	65.94	55.21	60.94