Jökull - 01.01.2020, Qupperneq 1

JÖKULL
THE ICELANDIC JOURNAL OF EARTH SCIENCES
JÖKLARANNSÓKNAFÉLAG ÍSLANDS
JARÐFRÆÐAFÉLAG ÍSLANDS
70. ÁR REYKJAVÍK 2020
Jökull, N
o. 70 2020 The Icelandic Journal of Earth Sciences
JÖKULL, No. 70, 2020
Contents – Efni
Reviewed research articles – regular issue
Hrafnhildur Hannesdóttir, Oddur Sigurðsson, Ragnar H. Þrastarson, Snævarr Guðmundsson,
Joaquín M. C. Belart, Finnur Pálsson, Eyjólfur Magnússon, Skúli Víkingsson and Tómas Jóhannesson
A national glacier inventory and variations in glacier extent in Iceland from the Little Ice Age maximum
to 2019 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Rikke Vestergaard, Gro Birkefeldt Møller Pedersen and Christian Tegner
The 1845–46 and 1766–68 eruptions at Hekla volcano: new lava volume estimates, historical accounts
and emplacement dynamics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Páll Einarsson and Sigurður Jakobsson
The analog seismogram archives of Iceland: Scanning and preservation for future research . . . . . . . . . . . . . . . 57
Snævarr Guðmundsson and Helgi Björnsson
Little Ice Age advance of Kvískerjajöklar, Öræfajökull, Iceland. A contribution to the assessment of
glacier variations in Iceland since the late 18th century . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Society and data reports
Snævarr Guðmundsson Sléttjökull 2011 and 2020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Páll Einarsson Snow avalanches during the 1987 Vatnafjöll earthquake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Snævarr Guðmundsson Rótarfjallsgjúfur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Hrafnhildur Hannesdóttir, Oddur Sigurðsson, Bergur Einarsson og Snævarr Guðmundsson
Að fóstra jökul (Fostering glacier termini) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Kieran Baxter Skálafellsjökull and Heinabergsjökull . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
Hrafnhildur Hannesdóttir
Jöklabreytingar (Glacier variations) 1930–1970, 1970–1995, 1995–2018 og 2018–2019 . . . . . . . . . . . . . . . . 111
Snævarr Guðmundsson og Helgi Björnsson
Um farvegi Jökulsár á Breiðamerkursandi á síðustu öldum.
(Channels of the glacial river Jökulsá á Breiðamerkursandi) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Erik Sturkell and Magnús Tumi Guðmundsson
Sveakratern 1919 – Grímsvötn revisit 2019: The legacy of Erik Ygberg and Hakon Wadell . . . . . . . . . . . . . . 129
Anna Líndal og Bjarki Bragason
Óendanleikinn framundan: Grímsvatnaaskjan og plánetan jörð.
(Infinite Next: Grímsvötn caldera and planet Earth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Kristján Sæmundsson Synt yfir Jökulsá á Fjöllum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Magnús Tumi Guðmundsson Magnús Hallgrímsson – minning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Páll Einarsson og Magnús Tumi Guðmundsson Leó Kristjánsson – minning . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Maxwell Brown and Bryndís Brandsdóttir Leó Kristjánsson – in memorian . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Jarðfræðafélag Íslands; Skýrsla stjórnar fyrir starfsárið (Annual report) 2019 . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Jöklarannsóknafélag Íslands; Skýrsla formanns á aðalfundi (Annual report) 2020 . . . . . . . . . . . . . . . . . . . . . . 154
Hrafnhildur Hannesdóttir og Þórdís Högnadóttir
Vorferð Jöklarannsóknafélags Íslands (The spring expedition) 2020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Jöklarannsóknafélag Íslands; Reikningar (Accounts) 2019 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
ISSN 0449-0576
https://doi.org/10.33799/jokull2020
8 mm183mm 183mm