Progress in Earth and Planetary Science

Table 1 Impact of the replacement of C₂₀ and/or C₃₀ on trend (T) and amplitude (A) in ice mass change for the regions of Greenland, West Antarctica, and East Antarctica based on COST-G solutions

From: Impact of the combination and replacement of SLR-based low-degree gravity field coefficients in GRACE solutions

	Greenland		West Antarctica		East Antarctica
Solution	T [Gt yr⁻¹]	A [Gt]	T [Gt yr⁻¹]	A [Gt]	T [Gt yr⁻¹]	A [Gt]
COST-G raw 60 × 60	− 179.8	70.2	− 115.0	8.6	41.9	66.7
CSR raw 60 × 60	− 181.2	64.9	− 117.7	17.8	35.4	94.7
C₂₀ from TN14	− 177.7	68.2	− 111.3	13.9	51.9	59.2
C₂₀ from SLR S	− 177.8	68.6	− 111.4	12.1	51.7	59.7
C₃₀ from TN14	− 179.6	67.4	− 115.3	3.1	41.2	81.3
C₃₀ from SLR S	− 180.9	54.1	− 112.9	25.1	47.4	151.3
C₃₀ from SLR S (full)	− 180.6	28.0	− 113.5	76.5	46.0	288.7
C_20,C₃₀ from TN14	− 177.6	65.3	− 111.6	10.2	51.2	74.0
C₂₀,C₃₀ from SLR S	− 178.8	53.1	− 109.3	20.6	57.4	142.1
C₂₀,C₃₀ from SLR S (full)	− 178.6	27.6	− 109.9	72.3	55.7	278.2

The C₃₀ replacement starts in March 2012 or is valid for the whole period (full)

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