Table 1

Reconciled ice-sheet mass balance estimates determined during various epochs, inclusive of all data present during the given dates. The period 1993 to 2003 was used in an earlier assessment (2).

Region
1992–2011
(Gt/year)
1992–2000
(Gt/year)
1993–2003
(Gt/year)
2000–2011
(Gt/year)
2005–2010
(Gt/year)
GrIS–142 ± 49–51 ± 65–83 ± 63–211 ± 37–263 ± 30
APIS–20 ± 14–8 ± 17–12 ± 17–29 ± 12–36 ± 10
EAIS14 ± 43–2 ± 54–9 ± 5026 ± 3658 ± 31
WAIS–65 ± 26–38 ± 32–49 ± 31–85 ± 22–102 ± 18
AIS–71 ± 53–48 ± 65–71 ± 61–87 ± 43–81 ± 37
GrIS + AIS–213 ± 72–100 ± 92–153 ± 88–298 ± 58–344 ± 48