Mass Balance (m w. eq.) for Tungnaarjškull (after Bjšrnsson et al, 1998; Bjšrnsson pers. comm, 2000) Year Bw Bs Bn 1986 1.51 1.48 0.03 1987 - - - 1988 - - - 1989 - - - 1990 - - - 1991 - - - 1992 1.75 1.51 0.24 1993 1.87 1.74 0.13 1994 1.70 1.83 -0.13 1995 - - - Surge 1996 - - - Surge 1997 0.96 2.84 -1.88 1998 0.82 2.30 -1.48 Cumulat. - - -3.09 Average 1.44 1.95 -0.51