Jökull - 01.01.2013, Page 148

Magnús Tumi Guðmundsson
dóttir, Snævarr Guðmundsson, Úlfar Linnet, Valgerð-
ur Jóhannsdóttir, Þóra Karlsdóttir, Þórdís Högnadóttir,
Þorsteinn Jónsson.
Fram á mánudag 4. júní: Björn Oddsson, Davíð Örvar
Hansson, Ómar Ragnarsson, Vilhjálmur Kjartansson
og Þorgils Ingvarsson. Til 6. júní: Jón Kjartansson og
Valdimar Leifsson.
THE 2012 SPRING EXPEDITION
The 2012 expedition was number 60 in a continu-
ous series of annual spring trips to Vatnajökull by the
Glaciological Society. The expedition took place on
1–8 June 2012, had 20 participants that stayed the
whole time and seven that took part for a few days
at the beginning. Many long-term tasks such as mass-
balance, lake level and geodetic GPS measurements
were carried out but the most time and labour con-
suming task was to study and map out the craters from
the eruption of 2011. Water had drained off the west-
ern and central part of the vents and these could now
be mapped, although it was obvious that the crater
rims had suffered considerable erosion by water and
ice. Ice cauldrons to the east of Hamarinn, formed in
a jökulhlaup in July 2011 were mapped out and sev-
eral GPS profiles measured within Grímsvötn to mon-
itor changes in geothermal activity. A group mapped
Little Ice Age lateral moraines in Esjufjöll. A per-
manent installation of a web-cam and weather station
was set up in Kverkfjöll. A permanent seismic station
was built at Vöttur in Skeiðarárjökull.
Andri og Evgenia dýptarmæla lónið í austurhluta gosstöðvanna á gúmmíbát þann 4. júní. – Depth soundings of
the lake in the eastern part of the eruption cauldron. Ljósm./Photo. MTG.
148 JÖKULL No. 63, 2013