Jökull - 01.01.2009, Blaðsíða 101

Slope creep in East Iceland observed by InSAR
Acknowledgements
I thank Ágúst Guðmundsson, Kristján Ágústsson,
Þórður Arason and the various scientists who attended
several project meetings at the Icelandic Meteorolog-
ical Office for their comments and advice. I also
thank the four reviewers (Páll Einarsson, Sverrir Guð-
mundsson and two anonymous reviewers) for their
constructive comments. This project was supported
by the Icelandic Avalanche Fund and all satellite
data were provided by the European Space Agency
through Category-1 project #2424.
Bylgjuvíxlmælingar á lausum jarðlögum á Austur-
landi
Höfundur hefur notað bylgjuvíxlmælingar úr radar-
gervitunglum (InSAR) til þess að leita eftir hreyf-
ingum á lausum jarðlögum í hlíðum á Austurlandi.
Hreyfingar fundust á um 10 stöðum og voru stærstu
hreyfingasvæðin í Vopnafirði og í Loðmundarfirði.
Þófanum í Seyðisfirði var sérstakur gaumur gefinn því
þar höfðu fundist sprungur í jarðvegi árið 2000 og
GPS mælingar á fastmerkjum gefið til kynna mikl-
ar hreyfingar 2001–2003. InSAR mælingarnar sýna
að þetta svæði var þegar farið að hreyfast árið 1998,
eða um tveimur árum áður en sprungurnar fundust, en
mælingarnar sýna jafnframt engin merki um hreyfing-
ar í Þófanum 1995–1997 og 2004–2005. Niðurstöð-
ur InSAR mælinganna af Austurlandi benda til þess
að þar sem hreyfingar eigi sér stað þá séu þær mjög
breytilegar frá einu ári til annars og jafnvel á milli
mánaða.
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