TY - JOUR
T1 - Jokulhlaups in Iceland
T2 - prediction, characteristics and simulation
AU - Bjornsson, H.
PY - 1992
Y1 - 1992
N2 - An empirical power-law relationship is obtained between peak discharge, Qmax, and total volume, Vt, of the jokulhlaups from Grimsvotn: Qmax=KVtb, where Qmax is measured in m3s-1, Vt in 106m3, K=4.15 × 10-3s-1m-2.52 and b=1.84. In general, the jokulhlaups (excepting those caused by eruptions) occur when the lake has risen to a critical level, but before a lake level required for simple flotation of the ice dam is reached. The difference between the hydrostatic water pressure maintained by the lake and the ice overburden pressure of the ice dam is of the order 2 to 6 bar. -from Author
AB - An empirical power-law relationship is obtained between peak discharge, Qmax, and total volume, Vt, of the jokulhlaups from Grimsvotn: Qmax=KVtb, where Qmax is measured in m3s-1, Vt in 106m3, K=4.15 × 10-3s-1m-2.52 and b=1.84. In general, the jokulhlaups (excepting those caused by eruptions) occur when the lake has risen to a critical level, but before a lake level required for simple flotation of the ice dam is reached. The difference between the hydrostatic water pressure maintained by the lake and the ice overburden pressure of the ice dam is of the order 2 to 6 bar. -from Author
UR - http://www.scopus.com/inward/record.url?scp=0027059986&partnerID=8YFLogxK
U2 - 10.3189/1992aog16-1-95-106
DO - 10.3189/1992aog16-1-95-106
M3 - Article
AN - SCOPUS:0027059986
VL - 16
SP - 95
EP - 106
JO - Annals of Glaciology
JF - Annals of Glaciology
SN - 0260-3055
ER -