Jökull - 01.06.2000, Page 55

Mass balance andprecipitation on the summit plateau of Örœfajökull
8000
E
E 7000
<u
o
c
m
co
6000
"5
'SL
«
Í 5000
o
4000 H----------------------------------------------
0 1000 2000 3000 4000
Kvísker, precipitation (mm)
Figure 3. Observed mass balance at Öræfajökull as a function of precipitation at Kvísker 1993-1996 and 1998
(between September lst in previous year and measurement date). The mean of ratio of the two values is 2.12. -
Tengsl mældrar afkomu á Öræfajökli og úrkomu á Kvískerjum 1993-1996 og 1998. Hlutfall vatnsgildis afkomu
á Öræfajökli og úrkomu á Kvískerjum er 2,12.
19^4 19+93
19+9)9< 18
i9^e

Table 2. Precipitation at Kvísker and estimated precipitation at Öræfajökull. -Úrkoma á Kvískerjum og metin
úrkoma á Örœfajökli.
Kvísker Öræfajökull
balance no. of P KS Pos P OA
year dates days mm mm mm
1992-1993 31.7.93-31.8.93 31 276 590 7570
1993-1994 31.8.94-31.8.94 0 0 0 7780
1994-1995 12.6.95-31.8.95 80 801 1700 7450
1995-1996 12.6.96-31.8.96 80 603 1280 7600
1997-1998 14.6.98-31.8.98 78 756 1600 7800
Pks'- Precipitation at Kvísker between the dates given.
Pog: estimatedprecipitationat Öræfajökullbetweenthedatesgiven,Po = 2.12Pxs where2.12is themeanof
the ratio of balance at Öræfajökull and precipitation at Kvísker.
Poa' estimate of annual precipitation at Öræfajökull, Po,i = bo + Poss (bo is given in Table 1).
JÖKULL No. 48 53