Ágrip og erindi / Abstracts and talks

Freysteinn Sigmundsson
Febrúar 2008

2007:

Sigmundsson, F., E. Sturkell, R. Pedersen, P. Einarsson, Ţ. Árnadóttir, 2007. Relation between volcano deformation and magma accumulation:  The role of magma compressibility, Iceland Geoscience Society, Spring meeting abstract volume, April 27, Reykjavik.

Sigmundsson, F., 2007. Multi-mode storage in volcano roots:  Physical aspects and examples from Iceland, 26th ECGS Workshop, Active volcanism and continental rifting with special focus on the Virunga (North Kivu, DRC), Luxembourg, November 19-21, 2007.

Sigmundsson, F., 2007. Magma chamber dynamics:  Constraints from geodetic studies, Symposium on "The existence of magma chambers:  an overview of current evidence"., Volume EU project meeting, Spain, October 17, 2007.

Sigmundsson, F., 2007. Landris og eldvirkni vegna rýrnunar Vatnajökuls: Áhrif á hönnun mannvirkja og vegakerfis, Rannsóknir Vegagerđarinnar, Ráđstefna 2. Nóvember 2007, Reykjavík.

Sigmundsson, F., 2007. Deep crustal storage of large volume of magma prior to catastrophic eruptions: The role of visco-elastic response to magma accumulation, Eos Trans. AGU,
88(52), Fall Meet. Suppl., Abstract V52B-02

Pagli, C. and Sigmundsson, F., 2007. Will Present day Glacier Retreat Cause Increased Volcanic Activity? Stress and its Effect on Magmatism induced by Glacier Retreat after the Little Ice Age at the Vatnajökull ice cap, Iceland, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract G13C-06

Ofeigsson, B., Einarsson, P., Sigmundsson, F.,  Sturkell, E., Ólafsson, H., Grapenthin, R., 2007. Crustal response to the formation of the Hálslón reservoir in Iceland, Eos Trans. AGU,
88(52), Fall Meet. Suppl., Abstract T21B-0583

Pinel, V., Sigmundsson, F., Sturkell, E., Geirsson, H., Einarsson, P., Gudmundsson, M. T., Albino, F., 2007. Influence of surface load variations on the monitoring and behaviour of a volcanic system: Application to Katla subglacial volcano, Iceland, Eos Trans. AGU,
88(52), Fall Meet. Suppl., Abstract V53C-1428

Grapenthin, R. ,Sigmundsson, F., Pedersen, R., Pinel, V., 2007. TI: Surface loading effects complicate the derivation of internal pressure source characteristics from volcano deformation signals, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract V53C-1421

Arnadottir, T., Lund, B., Jiang, W., Geirsson, H., Sigmundsson, F., Einarsson, P., 2007. Twenty Years of GPS in Iceland: What Have we Learned About the Plate Boundary?, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract G13C-05

Sturkell, E., Einarsson, P., Geirsson, H., Moore, J. G., Jakobsson, S. P., Sigmundsson, F. 2007. TI: Continuing subsidence and deformation of the Surtsey volcano, 1991 - 2002, Iceland, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract G43B-1194



2006:


Freysteinn Sigmundsson, Fire and ice on shaky grounds: Living with natural hazards, keynote lecture, 37th Nordic Seminar on Detection Seismology, Abstract volume, August 21-23, Nesjavellir, Iceland, 2006

Freysteinn Sigmundsson, R. Pedersen, K. Feigl, V. Pinel, H. Björnsson, F.Pálsson, Glacial surges flex the crust of the Earth:  Crustal deformation associated with rapid ice flow and mass redistribution at Icelandic outlet glaciers observed by InSAR, Raunvísindaţing 2006, 3-4 mars, 2006, Háskóli Íslands.

Sigmundsson, F., Sturkell, E., Geirsson, H., Pinel, V., Einarsson, P., Pedersen, R., Gudmundsson, M.T., Hognadottir, Th., Roberts, M.J., & Feigl, K., 2006: Ice-volcano interaction and crustal deformation at the subglacial Katla volcano, Iceland: GPS, InSAR and optical levelling tilt measurements compared to combined effects of magma accumulation and variable ice load. International Symposium on Earth and Planetary Ice-Volcano Interactions, Reykjavík, Iceland, 19 - 23 June 2006.

Sigmundsson, F., Einarsson, P., Sturkell, E., Ófeigsson, B., Grapenthin, R., Geirsson, H., Jakobsdóttir, S., & Halldórsson, P., 2006: Geologic hazards in the Kárahnjúkar area and their monitoring:  Will the Hálslón reservoir trigger deformation, fault slip and fracture opening? Geoscience Society of Iceland, Spring meeting 19/4-2006.

Sigmundsson, F.,  P. Einarsson, E. Sturkell, R. Pedersen, C. Pagli, Th. Árnadóttir, H. Ólafsson and H. Geirsson, Magma flow, storage and emplacement in the Icelandic crust: Constraints from space and terrestrial geodetic observations, A George P.L. Walker symposium on Advances in Volcanology, 12-17 June 2006, Reykholt, Borgarfjordur.

Sigmundsson, F., R. Pederesen, K. L. Feigl, V. Pinel, H. Björnsson, Elastic Earth responset to glacial surges: Crustal deformation associated with rapid ice flow and mass redistribution at Icelandic outlet glaciers
observerd by InSAR, European Geosciences Union General Assembly, April 2-7, 2006, Geophysical Research Abstracts, 8, 07822, 2006.

Sigmundsson, F., H. Eysteinsson, P. Einarsson, E. Sturkell, Krafla Rifting Episode 1975-1984: Constraints on Magma Flow From Time Series of Crustal Deformation and Gravity Change, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract T41B-1567, 2006.


Sturkell, E., Sigmundsson, F., & Geirsson, H., 2006: Inflation/deflation cycle of Grimsvötn volcano caused by magma movements prior to and during eruptions: constrains from GPS measurements 1992-2005. International Symposium on Earth and Planetary Ice-Volcano Interactions, Reykjavík, Iceland, 19 - 23 June 2006.

Sturkell, E., Einarsson, P., Sigmundsson, F., Geirsson, H., Ólafsson, H., Pedersen, R., De Zeeuw-van Dalfsen, E., Linde, A.T., Sacks, S.I., & Stefánsson R., 2006: Present-day volcano deformation in Iceland. George P.L. Walker symposium on Advances in Volcanology, Reykholt, Borgarfjordur, W-Iceland,12-17 June 2006, p. 38.

Sturkell, E., Sigmundsson, F., Geirsson, H., Halldór Ólafsson, H., & Theodórsson, Th., 2006: Post-rifting deformation processes 1989-2005 at Krafla volcano, Iceland: Constraints from local leveling, tilt and GPS observations. Geoscience Society of Iceland, Spring meeting 19/4-2006.

Sturkell, E., Geirsson, H., Árnadóttir, Th., Jiang, W., Pagli, C., Rennen, M., Völksen, C., Sigurdsson, T. Theódórsson, T., Erlingsson, J., Valsson, G., Einarsson, P., and Sigmundsson, F., 2006: Plate spreading and isostatic rebound, result from the nationwide 1993 and 2004 ISNET campaigns in Iceland, Bull. Geolog. Society of Finland, The 27th Nordic Geological Winter Meeting, Special Issue 1, p. 156, Oulu, Finland, 9-12 January 2006.

Sturkell, E., Einarsson, P., Sigmundsson, F., Geirsson, H., Soosalu, H., Knox, C., Ólafsson, H., Pedersen, R., Theodórsson, T., Present-day deformation at the Grímsvötn, Askja, and Krafla volcanoes, Geoscience
Society of Iceland, fall meeting, October 27, Reykjavík, 2006.

Sturkell, E., Ágústsson, K., Linde, A., Sacks, S. I., Einarsson, P. F. Sigmundsson, H. Geirsson, H. Olafsson, R. Pedersen and P. L. Famina, Current magma accumulation in the deep magma chamber under the Hekla volcano,
Iceland, Raunvísindaţing 2006, 3-4 mars, 2006, Háskóli Íslands.

Sturkell, E., F. Sigmundsson, H. Geirsson, R. Pedersen, E. de Zeeuw-van Dalfsen, H. Olafsson and T. Theodorsson, Local deformation processes 1989-2005 at Krafla volcano, Iceland: Constraints from levelling, tilt, InSAR and GPS observations, Trans. AGU, 87(52), Fall Meet. Suppl., Abstract G53A-0876, 2006.

Pagli, C., Sigmundsson, F., Lund, B., Geirsson, H., Sturkell, E., Einarsson, P., & Árnadóttir, Th., 2006: Glacio-isostatic deformation around the Vatnajökull ice cap, Iceland: Observations and Finite Element Modeling. International Symposium on Earth and Planetary Ice-Volcano Interactions, Reykjavík, Iceland, 19 - 23 June 2006.

Pagli, C., F. Sigmundsson, R. Pedersen, P. Einarsson, Th. Árnadóttir, and K. L. Feigl, Crustal deformation associated with the 1996 Gjálp subglacial eruption: InSAR studies in the affected areas adjacent to the Vatnajokull ice cap, EGU, Vienna, April, 2006.

Pagli, C., F. Sigmundsson, B. Lund, H. Geirsson, E. Sturkell, P. Einarsson, and Th. Árnadóttir, Ongoing and future glacio-isostatic crustal adjustments around Vatnajokull ice cap, Iceland due to ice retreat: GPS measurements and Finite Element Modeling, EGU, Vienna, April, 2006.

Pagli, C., F. Sigmundsson, B. Lund, H. Geirsson, E. Sturkell, P. Einarsson, and Th. Árnadóttir, Solid Earth Response to Recent Climate Warming: Glacio-isostatic deformation around the Vatnajokull ice cap,
Iceland, Induced by Glacier Retreat Last Century, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract G33B-0068, 2006.

Pedersen, R., and Sigmundsson, F., "InSAR derived source geometries of two recent intrusive events in the Eyjafjallajökull volcano, Iceland, and their relation to the tectonic setting", EGU06-A-06409 , EGU General Assembly, Vienna, Austria, 2006.

Pedersen, R., T. Masterlark, F. Sigmundsson, and Th. Árnadóttir, Inter-rifting Deformation in an Extensional Rift Segment; the Northern Volcanic Zone, Iceland, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract
G34A-07, 2006.

Árnadóttir, Th., W. Jiang, H. Geirsson, E. Sturkell, C. Pagli, F. Sigmundsson, P. Einarsson and Th. Sigurdsson, Plate boundary deformation in Iceland observed by GPS,  A George P.L. Walker symposium on Advances in Volcanology, 12-17 June 2006, Reykholt, Borgarfjordur.

Árnadóttir, Th., W. Jiang, H. Geirsson, E. Sturkell, C. Pagli, F. Sigmundsson, P. Einarsson and Th. Sigurdsson, Plate spreading and uplift in Iceland (Landrek og landris á Íslandi),  Geoscience Society of Iceland, spring meeting, April 19, Reykjavík, 2006. 

Árnadóttir, Th., W. Jiang, H. Geirsson, E. Sturkell, C. Pagli, F. Sigmundsson, P. Einarsson and Th. Sigurdsson, Plate spreading and rapid uplift observed by GPS in Iceland, Eos Trans. AGU, 87(52), Fall Meet.
Suppl., Abstract G43B-1004, 2006.

Ófeigsson, B. G., E. Sturkell, F. Sigmundsson, H. Ólafsson, P. Einarsson, Crustal deformation in the Kárahnjúkar area: GPS-network measurements in 2005, Raunvísindaţing 2006, 3-4 mars, 2006, Háskóli Íslands.

Ófeigsson, B., P. Einarsson, F. Sigmundsson, E. Sturkell, H. Ólafsson, and R. Grapenthin, Expected Crustal Movements due to the Planned Hálslón Reservoir in Iceland, Trans. AGU, 87(52), Fall Meet. Suppl., Abstract
T13A-0495, 2006.

Grapenthin, R., F. Sigmundsson, H. Geirsson, Th. Árnadóttir, Icelandic rhythmics: Annual modulation of land elevation and plate spreading by snow load, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract G33B-0055, 2006.


2005:


Freysteinn Sigmundsson, Halldór Geirsson, Erik Sturkell, Páll Einarsson, Pete La Femina, Tim Dixon, Christof Völksen, Ţóra Árnadóttir, Carolina Pagli, Rikke Pedersen, Geodetic Constraints on plate boundary models and
dynamics in Iceland, Vorráđstefna 9. apríl 2005, Ágrip erinda og veggspjalda, Jarđfrćđafélag Íslands, bls. 28-29.

Rikke Pedersen, de Zeeuw-van Dalfsen, E., Freysteinn Sigmundsson og Carolina Pagli (2005), Deep-seated recharging of the Krafla volcanic system, Vorráđstefna 9. apríl 2005, Ágrip erinda og veggspjalda, Jarđfrćđafélag
Íslands, bls. 55-56.

Halldór Geirsson, Páll Einarsson og Freysteinn Sigmundsson (2005), Jarđskorpuhreyfingar og hćđ sjávarstöđu, ráđstefna um áhrif sjóflóđa og hćkkunar sjávarstöđu á skipulag, Verkfrćđideild Háskóla Íslands, 28. apríl
2005.

Pagli, C., Sturkell, E., Geirsson, H., Freysteinn Sigmundsson, Einarsson, P., Árnadóttir, Ţ. and Pinel, V. (2005) Modeling and observations of current glacio-isostatic crustal movements around Vatnajökull ice cap, ICS 2005 -
Second International Coastal Symposium in Iceland, Höfn, Hornafjörđur, 5-8 June, 2005, Icelandic Maritime Administration, Abstract volume, p. 91-92, http://www.itv.is/ics2005/

Freysteinn Sigmundsson, Pagli, C., Sturkell, E., Geirsson, H., Pinel., V. and Einarsson, P. (2005) Forecasting future uplift and crustal response around Vatnajökull ice cap due to ice unloading, ICS 2005 - Second
International Coastal Symposium in Iceland, Höfn, Hornafjörđur, 5-8 June, 2005, Icelandic Maritime Administration, Abstract volume, p. 93, http://www.itv.is/ics2005/

Rikke Pedersen og Freysteinn Sigmundsson (2005), "Applications of InSAR for crustal deformation monitoring in Iceland", erindi á ráđstefnu "The establishment of a new vertical reference for Iceland", fundur á vegum Nordisa Kommisionen för Geodesi (NGK)

Rikke Pedersen og Freysteinn Sigmundsson (2005), An overview of the utilization of interferometric synthetic aperture radar images for observation of Icelandic crustal deformation, erindi á ráđstefnu "GI Norden 2005 - What's up, GI Norden Conference", Hotel Nordica, Reykjavík, 15. júní, 2005 samnorrćn ráđstefna á vegum norrćna félaga um landupplýsingakerfi - LÍSU samtökin á Íslandi.

Freysteinn Sigmundsson, Pagli, C., Sturkell, E., Geirsson, H., Einarsson, P., Árnadóttir, Ţ. and Björnsson, H. (2005), Landris viđ Vatnajökul, Ráđstefna um rannsóknir Vegagerđarinnar 2005, Ráđstefna á Hótel Nordica 11.
nóvember 2005.

Freysteinn Sigmundsson, Pedersen, R., Feigl, K. L., Pinel, V. and Björnsson, H. (2005) Glacial surges flex the crust of the Earth: Crustal deformation associated with rapid ice flow and mass redistribution at Icelandic outlet
glaciers observed by InSAR, EOS Trans. Am. Geophysical Union, 86, AGU Fall Meeting abstracts, abstract no G42A-07.

Pedersen, R.., Freysteinn Sigmundsson, Einarsson, P., Brandsdóttir, B., and Árnadóttir, Th. (2005) Controlling factors on earthquake swarms associated with magmatic intrusions; constraints from Iceland, EOS Trans. Am. Geophysical Union, 86, AGU Fall Meeting abstracts, abstract no G33A-0017.
 

2004:

Sigmundsson, F., E. Sturkell, V. Pinel, P. Einarsson, R. Pedersen, H. Geirsson, M. T. Gudmundsson, H. Bjornsson, C. Pagli, Deformation and eruption forecasting at volcanoes under retreating ice caps: Discriminating signs of magma inflow and ice unloading at Grimsvotn and Katla volcanoes, Iceland, EOS Transactions American Geophysical Union, 85, AGU Fall Meeting Suppl., Abstract G42A-07, 2004.

Sturkell, E., P. Einarsson, F. Sigmundsson, M. J. Roberts, H. Geirsson, H. Olafsson, R. Pedersen, E. de Zeeuw-van Dalfsen, A. Linde, S. I. Sacks, R. Stefansson, Magma dynamics and volcano geodesy in Iceland, EOS Transactions American Geophysical Union, 85, AGU Fall Meeting Suppl., Abstract G51A-0055, 2004

Pedersen, R., F. Sigmundsson, K. Feigl, C. Pagli, S. Jonsson, E. De zeeuw-van Dalfsen, H. Vadon, Crustal deformation in Iceland: Constraints on tectonic and magmatic processes from InSAR observations, EOS Transactions American Geophysical Union, 85, AGU Fall Meeting Suppl., Abstract G51B-0076, 2004.

La Femina, P. C., T. Dixon, R. Malservisi, Th. Arnadottir, F. Sigmundsson, E. Sturkell, Strain partioning and accumulation across overlapping spreading centers: Geodetic GPS measurements in South Iceland, EOS Transactions American Geophysical Union, 85, AGU Fall Meeting Suppl., Abstract G13C-01, 2004.

Pedersen, R., and Sigmundsson, F., Temporal development of intrusive episodes in the Eyjafjallajökull volcano, Iceland, derived from InSAR images, IAVCEI general assembly 2004, Pucón, Chile, 14-19 Nov., 2004.

de Zeeuw-van Dalfsen, R. Pedersen, F. Sigmundsson, and C. Pagli, Deep accumulation of magma near the crust-mantle boundary at the Krafla volcanic system, Iceland: Evidence from satellite radar interferometry 1993-1999, IAVCEI general assembly 2004, Pucón, Chile, 14-19 Nov., 2004.

de Zeeuw-van Dalfsen, H. Rymer, D. A. Rothery, E. Sturkell, and F. Sigmundsson, The integration of micro-gravity, geodetic and water extraction data at Krafla volcano, NE Iceland, IAVCEI general assembly 2004, Pucón, Chile, 14-19 Nov., 2004.

Pedersen, R., Sigmundsson, F., Feigl, K.L., Pagli, C., Jónsson, S., de Zeeuw-van Dalfsen, E., Vadon, H., InSAR observations of crustal deformation in Iceland – An overview, ENVISAT symposium, 6-10 Sept., 2004, Salzburg, Austria, 2004.

Sigmundsson, F., R. Pedersen, E. Sturkell, P. Einarsson, H. Geirsson, Ţ. Árnadóttir, C. Pagli, W. Jiang, H. Ólafsson, R. Ólafsdóttir, Interpretation of volcano deformation: Constraints on magma storage, volumes, flow rates, and future events on volcanoes, Raunvísindaţing, 16-17 apíl 2004, ágrip erinda og veggspjalda, p. 55, 2004.

Pedersen, R., Sigmundsson, F., and Pagli, C., Satellite observations of Icelandic crustal deformation, Raunvísindaţing, 16-17 apíl 2004, ágrip erinda og veggspjalda, p. 55, 2004.

Sigmundsson, F., Widespread increase in magma pressure precedes major failure along the plate boundary in Iceland, 26th Nordic Geological Winter Meeting, January 6-9, 2004, Uppsala, Abstract Volume, GFF, 126, p. 50.

Sturkell, E., H. Geirsson, F. Sigmundsson, Ţ. Árnadóttir, R. Pedersen, C. Pagli, and P. Einarsson, Crustal deformation and volcano dynamics in Iceland, 26th Nordic Geological Winter Meeting, January 6-9, 2004, Uppsala, Abstract Volume, GFF, 126, p. 51.


2003:

E. Sturkell, F. Sigmundsson, P. Einarsson, H. Geirsson, M. J. Roberts, Magma inflow into Katla, one of Iceland’s most hazardous volcanoes, EOS Transactions American Geophysical Union, 84, AGU Fall Meeting abstracts, p. F1503, 2003.

C. Pagli, F. Sigmundsson, Th. Arnadottir, P. Einarsson, Subsidence of Askja volcano, North Iceland, EOS Transactions American Geophysical Union, 84, AGU Fall Meeting abstracts, p. F1520, 2003. (poster)

D. Richard, S. Owen, and F. Sigmundsson, Dike models of tiltmeter data from the 1984 rifting event at Krafla, Iceland: Testing for a vertical component to the propagation direction, , EOS Transactions American Geophysical Union, 84, AGU Fall Meeting abstracts, p. F1523, 2003. (poster)

F. Sigmundsson, Kvikuhreyfingar og eldgosahćtta í og viđ vatnsverndarsvćđi Reykjavíkur, ágrip fyrir Ráđstefnu um vatnsvernd á höfuđborgarsvćđinu, 12. nóvember 2003, Reykjavíkurborg.

F. Sigmundsson, and P. Einarsson., Rheology of hotspot-ridge interaction: Observations and interpretations from Iceland, EGS-AGU-EUG Joint Assembly, Nice, France, Abstract 06434, 2003.

Pagli, C., Pedersen, R., Sigmundsson, F., Feigl, K.L., Triggered aseismic slip on the Reykjanes Peninsula, Iceland captured by radar interferometry, EGS-AGU-EUG Joint Assembly, Nice, France, Abstract 06434, 2003.

Pedersen, R., Sigmundsson, F., Vogfjörđ, K.S., Repeated Intrusive Events Observed by InSAR and Their Spatially Offset Seismicity, Iceland Natural Laboratory, EGS-AGU-EUG Joint Assembly, Nice, France, Abstract 01083, 2003. (poster)

Feigl, K. L., Dubois, L., Komatitsch, D., Pedersen, R., Arnadottir, T., Vogfjord, K., Sigmundsson, F., Finite element models of co- and post-seismic deformation from two M 6.6 earthquakes in Iceland, EGS-AGU-EUG Joint Assembly, Nice, France, Abstract 04724, 2003.


2002:

Halldor Geirsson, Th. Arnadottir, F. Sigmundsson, P. Einarsson, Th. Villemin, Continuous GPS measurements in Iceland 1999-2002, EOS Transactions American Geophysical Union, 83, AGU Fall Meeting abstracts, p. F380, 2002.

R. Pedersen, and F. Sigmundsson, Temporal development of repeated intrusive events in a south Iceland volcanic system, inferred from InSAR measurements, EOS Transactions American Geophysical Union, 83, AGU Fall Meeting abstracts, p. F1343, 2002.

D. Richard, S. Owen, and F. Sigmundsson, Dike propagation models of tiltmeter data from the 1984 rifting event at Krafla volcano, EOS Transactions American Geophysical Union, 83, AGU Fall Meeting abstracts, p. F1349, 2002.

Sigmundsson F. & Einarsson, P. 2002. Plume-ridge interaction in Iceland: Expression in crustal deformation fields and volcanic activity, The 25th Nordic Geological Winter Meeting in Reykjavík, 6-9 Jan 2002, abstract volume, p. 187.

Sigmundsson, F., Pedersen, R., Arnadottir, T. Einarsson, P., Sturkell, E., Geirsson, H. and Feigl, K. 2002. Inferring Volcano Dynamics and Magma Budget from Crustal Deformation Studies at Icelandic Volcanoes. EOS Transactions American Geophysical Union, 83, AGU Fall Meeting abstracts, p. F1382, 2002.

Sigmundsson, F. Pedersen, R. Clifton, A. Pagli C. & Ólafsdóttir, R. 2002. Crustal deformation in Iceland measured by Interferometric Analysis of Synthetic Aperture Radar Images (InSAR), The 25th Nordic Geological Winter Meeting in Reykjavík, 6-9 Jan 2002, abstract volume, p. 188.

Sigmundsson, F., Pedersen, R., Pagli, C., Feigl, K., Sturkell, E., 2002. Styles of Volcano Deformation in Iceland Mapped by InSAR. EOS Transactions American Geophysical Union, 83, AGU Fall Meeting abstracts, p. F364, 2002.

Sturkell, E., Einarsson, P., Sigmundsson, F., Hreinsdóttir, S., & Geirsson, H. 2002. Geodetic observations of the 1998 Grímsvötn eruption: Co-eruptive subsidence and subsequent inflation, observed by GPS, The 25th Nordic Geological Winter Meeting in Reykjavík, 6-9 Jan 2002, abstract volume, p. 202. (poster).

Sturkell, E., Einarsson, P., Sigmundsson, F., Hreinsdóttir, S., & Geirsson, H.,2001: Deformation of Grímsvötn volcano, Iceland: 1998 eruption and subsequent inflation, The 25th Nordic Geological Winter Meeting in Reykjavík, 6-9 Jan 2002, abstract volume.

Pagli, C. Pedersen, R., Sigmundsson F. and Feigl, K.L. 2002. Crustal deformation at the Reykjanes Peninsula, Iceland, from 1992--2000, measured by Satellite Radar Interferometry, The 25th Nordic Geological Winter Meeting in Reykjavík, 6-9 Jan 2002, abstract volume, p. 150.

Pedersen, R. Sigmundsson, F. Jonsson, S. Feigl, K.L.cand Árnadóttir, Th. 2002. Bookshelf tectonics observed from space, The 25th Nordic Geological Winter Meeting in Reykjavík, 6-9 Jan 2002, abstract volume, p. 152.

Pedersen, R. Sigmundsson, F. Feigl, K.L. Sturkell, E. Einarsson, P. Jonsson, S. Agustsson, K. Linde, A. and Bretar F. 2002. Deformation of Volcanoes - what InSAR, tilt, GPS and strain data can tell us about Hekla, The 25th Nordic Geological Winter Meeting in Reykjavík, 6-9 Jan 2002, abstract volume, p. 153.


2001:

F. Sigmundsson, and P. Einarsson, Plume-ridge interaction in Iceland: Expression in crustal deformation fields and volcanic activity, EOS Transactions American Geophysical Union, 82, AGU Fall Meeting abstracts, p. F1184, 2001.

F. Sigmundsson, Crustal deformation in Iceland, Abstract volume for meeting on the Icelandic crust, Svartsengi (Rannís+NSF supported), September 2001.

F. Sigmundsson, R. Pedersen, K.L. Feigl, Erik Sturkell, Pall Einarsson, Sigurjon Jonsson, Kristjan Agustsson, Alan Linde and Frederic Bretar: Joint Interpretation of Geodetic Data for Volcano Studies: Evaluation of Pre- and Co-eruptive Deformation for the Hekla 2000 Eruption from InSAR, Tilt, GPS and Strain Data, AGU fall meeting, San Francisco, USA, December 2001.

R. Pedersen, F. Sigmundsson, S. Jonsson, K.L. Feigl, and Th. Árnadóttir: Bookshelf Tectonics Observed by InSAR: Co-seismic Deformation and Triggered “Back-Slip” in the South Iceland Seismic Zone from, June 2000 earthquakes, AGU fall meeting, San Francisco, USA, December 2001.

Dixon, T.H., Árnadóttir, Ţ., Dixon, J.E., LaFemina, P., Höskuldsson, H., Ofoegbu, G., Sigmundsson, F., Stefánsson, R., Sturkell, E., 2001: Deformation at Torfajökull and Hekla Volcanoed, South Iceland: Influence of regional of tectonics and viscoelasticity, Symposium on the Icelandic plume and crust, Svartsengi Goethermal Power Plant, 8-10 Sep, 2001, 38.

Sturkell, E., Sigmundsson, F., Einarsson, P., Hreinsdóttir, S., & Geirsson, H., 2001: Magma movements and unrest at the Katla and Eyjafjallajökull volcanoes in the period 1994-2001. The Icelandic Geological Society Island spring meeting, Reykjavík, 69.

Amy E. Clifton, Freysteinn Sigmundsson, Ţóra Árnadottir, Kurt Feigl& Gunnar Guđmundsson, Faulting and deformation resulting from magma accumulation at the Hengill triple junction SW-Iceland. Geoscience Society of Iceland, Spring Meeting 2001, p.12. (poster)

Freysteinn Sigmundsson & Páll Einarsson, 1994-2000 Volcanic and Seismic Unrest at a 200-km-long Stretch of the Mid-Atlantic Ridge Plate Boundary in Iceland: Episodic Magma Delivery. Geoscience Society of Iceland, Spring Meeting 2001, p. 16.

Rikke Pedersen, Freysteinn Sigmundsson, Kurt Feigl & Ţóra Árnadóttir, The SISZ earthquakes, June 2000: Fault geometry and slip distribution inferred from InSAR. Geoscience Society of Iceland, Spring Meeting 2001, p. 65.

Erik Sturkell, Freysteinn Sigmundsson, Páll Einarsson, Sigrún Hreinsdóttir & Halldór Geirsson, Magma movements and unrest at the Katla and Eyjafjalla-jökull volcanoes in the period 1994-2001. Geoscience Society of Iceland, Spring Meeting 2001, p. 69.

Sverrir Guđmundsson, Freysteinn Sigmundsson, Magnús Tumi Guđmundsson, Helgi Björnsson, Jens Michael Carstensen & Helmut Rott, Three-Dimensional Surface Motion Maps Estimated From Combined InSAR And GPS Data. Geoscience Society of Iceland, Spring Meeting 2001, p. 70.

R. Pedersen, F. Sigmundsson, K.L. Feigl and Th. Árnadóttir: The SISZ earthquakes, June 2000: Fault geometry and slip distribution inferred from InSAR, JFI spring meeting, Reykjavik, April 2001.

R. Pedersen, F. Sigmundsson, Th. Árnadóttir, K. Ágústsson, K.L. Feigl: The Earthquake in South Iceland on June 17, 2000: An InSAR based model compared to GPS and volumetric strain data, EUG meeting, Strasbourg, April 2001.

R. Pedersen, F. Sigmundsson, Th. Árnadóttir, K. Ágústsson, K.L. Feigl: The Earthquake in South Iceland on June 17, 2000: An InSAR based model compared to GPS and volumetric strain data, EGS meeting, Nice, France, March 2001.


2000:

Freysteinn Sigmundsson, Improved Eruption Warnings in a New Century - Role of Deformation Data, EOS Transactions American Geophysical Union, 81, AGU Fall Meeting abstracts, p. F1255, 2000.

P. Einarsson, A. Clifton, F. Sigmundsson, and R. Sigbjornsson, The South Iceland Earthquakes of June 2000: Tectonic Environment and Effects, EOS Transactions American Geophysical Union, 81, AGU Fall Meeting abstracts, p. F890, 2000.

A. Clifton and F. Sigmundsson, Faulting and Deformation Resulting from Magma Accumulation at the Hengill Triple Junction, SW-Iceland, EOS Transactions American Geophysical Union, 81, AGU Fall Meeting abstracts, p. F1233, 2000.

R. Pedersen, A. Clifton, P. Einarsson, and F. Sigmundsson, Styles of Surface Rupture Accompanying the June 17 and 21, 2000 Earthquakes in the South Iceland Seismic Zone, EOS Transactions American Geophysical Union, 81, AGU Fall Meeting abstracts, p. F1171, 2000.

S. Gudmundsson, F. Sigmundsson, and J. M. Carstensen, Three-dimensional surface motion maps estimated from combined InSAR and GPS data, EOS Transactions American Geophysical Union, 81, AGU Fall Meeting abstracts, p. F338, 2000. (oral presentation given by FS)

Erik Sturkell, Freysteinn Sigmundsson, Pall Einarsson, Sigrun Hreinsdottir and Malou B. Stinessen, 1994-2000 Unrest and Magma Movements at Katla and Eyjafjallajokull Volcanoes, Iceland: Simultaneous Activity of Coupled Volcanic Systems, EOS Transactions American Geophysical Union, 81, AGU Fall Meeting abstracts, p. F1387, 2000.

Sigmundsson, F., and P. Einarsson, 1994-2000 Volcanic and Seismic Unrest at a 200-km-long Stretch of the Mid-Atlantic Ridge Plate Boundary in Iceland: Episodic Magma Delivery, EOS Transactions American Geophysical Union, 81, AGU Fall Meeting abstracts, p. F1232, 2000.

Rikke Pedersen and Freysteinn Sigmundsson, InSAR study of the June 17th, 2000 earthquake, SISZ, Iceland: Preliminary results, Geoscience Society of Iceland, Autumn Meeting 2000, p. 9-10, 2000.

Sigmundsson, F., Eruption warnings and volcano monitoring. Paper presented at International conference of LACDE (Local authorities confronting disasters and emergencies), Reykjavik, 27-30 August 2000.

Sigmundsson, F., K. Feigl, D. Massonnet, H. Vadon, R. Ólafsdóttir, R. Pedersen, and E. Sturkell, Remote sensing of volcano deformation in Iceland using Satellite Radar Interferometry, paper presented at The Nordic GIS Conference, Reykjavik, 26-28 October 2000.

Sturkell, E., P. Einarsson, and F. Sigmundsson, Crustal deformation around Myrdalsjokull and Eyjafjallajokull, 1967-2000, Geoscience Society of Iceland, 2000 February Meeting, Abstract volume, p. 22-23, 2000.

Sturkell, E., and F. Sigmundsson, Subsidence of the Askja caldera, Iceland, during the 1983-1999 non-eruptive period. Paper presented at the 24th Nordic Geological Winter meeting, Trondheim, 6-9 Januar, 2000.

Sigmundsson, F., Oskarsson, N. Gronvold, K. and G. Sverrisdottir, Unrest near the center of the Iceland hotspot: Subglacial eruptions in 1996 and 1998. Paper presented at the 24th Nordic Geological Winter meeting, Trondheim, 6-9 Januar, 2000.

Sigmundsson, F., Sturkell, E., and R. Olafsdottir, Satellite radar interferometry for exploration and geophysical research. Paper presented at the 24th Nordic Geological Winter meeting, Trondheim, 6-9 Januar, 2000.


1999:

Sigmundsson, F., P. Durand, and D. Massonnet, Crustal deformation associated with 1998 eruption at Piton de la Fournaise volcano, La Reunion island, mapped by SAR-interferometry using the RADARSAT satellite, Geoscience Society of Iceland, 1999 Spring Meeting, Abstract volume, p. 17, 1999. (poster)

AGU fleiri ágrip.

Sturkell, E., and F. Sigmundsson, Continuous deflation of the Askja caldera during the 1983-1999 non-eruptive period, Geoscience Society of Iceland, 1999 Spring Meeting, Abstract volume, p. 14, 1999.

Gudmundsson, M. T., F. Sigmundsson, G. Larsen, Th. Hognadottir, H. Bjornsson, and F. Palsson, The 1998 eruption in Grímsvötn, 1999 Spring Meeting, Abstract volume, p. 47, 1999.

Hreinsdottir, S., P. Einarsson, F. Sigmundsson, and Th. Arnadottir, Measurements of continued uplift and expansion at the Hromundartindur volcanic system, Geoscience Society of Iceland, 1999 Spring Meeting, Abstract volume, p. 71, 1999.

Hreinsdottir, S., P. Einarsson, and F. Sigmundsson, Crustal Deformation at the Reykjanes Peninsula Plate Boundary 1993-1998, Geoscience Society of Iceland, 1999 Spring Meeting, Abstract volume, p. 72, 1999.

Hreinsdottir, S., P. Einarsson, and F. Sigmundsson, GPS-network around Bardarbunga – Monitoring of crustal deformation associsated with volcanic activity at the Vatnajökull ice cap, Geoscience Society of Iceland, 1999 Spring Meeting, Abstract volume, p. 73-74, 1999.

Hreinsdottir, S., P. Einarsson, and F. Sigmundsson, Crustal deformation at the Oblique Reykjanes Peninsula Plate Boundary, SW-Iceland, 1993-1998, Observed with GPS Geodetic Measurements, EOS Transactions American Geophysical Union, 80, AGU Spring Meeting abstracts, p. S340, 1998.


1998:

Sigmundsson, F., and D. Massonnet, Satellite radar interferometry for global routine monitoring of volcano deformation: Prospects and limitations, EOS Transactions American Geophysical Union, 79, AGU Fall Meeting abstracts, p. F974, 1998. (poster)

Sturkell, E., and F. Sigmundsson, Constant 4-5 cm/year subsidence of the Askja caldera, Iceland, during the 1983-1988 non-eruptive period, EOS Transactions American Geophysical Union, 79, AGU Fall Meeting abstracts, p. F949, 1998.

Durand, P., F. Sigmundsson, and D. Massonnet, Opening of the March 1998 eruptive fissure at Piton de la Fournaise volcano measured by RADARSAT satellite radar interferometry, EOS Transactions American Geophysical Union, 79, AGU Fall Meeting abstracts, p. F35, 1998.

Gasperi, J., K. L. Feigl, F. Sigmundsson, and A. Rigo, Satellite radar interferometry on the Hengill triple junction, south Iceland, EOS Transactions American Geophysical Union, 79, AGU Fall Meeting abstracts, p. F201, 1998.

Rymer, H., J. Cassidy, C. A. Locke, F. Sigmundsson, Post-eruptive gravity changes from 1990-1996 at Krafla volcano, Iceland, EOS Transactions American Geophysical Union, 79, AGU Fall Meeting abstracts, p. F949, 1998.

Gasperi, J., K. L. Feigl, F. Sigmundsson, and A. Rigo, Satellite radar interferometry in the southern Iceland seismic zone: Initial results, Annales Geophysicae, 1998 Special Issue for the European Geophysical Society meeting in Nice 20-24 April 1998, p. 352, 1998.

Sigmundsson, F., Geodesy and magma chambers (In Icelandic), Geoscience Society of Iceland, Conference on Magma Chambers, abstract volume, p. 14, February 1998.


1997:

Sigmundsson, F., M. T. Gudmundsson, H. Bjornsson, and Th. Hognadottir, The subglacial 1966 Vatnajokull eruption, Iceland: Ice melt and eruption volume inferred from aeroplane radar altimetry, EOS Transactions American Geophysical Union, 78, AGU Fall Meeting abstracts, p. F778, 1997.

Gudmundsson, M. T., H. Bjornsson, and F. Sigmundsson, Effects of the 1996 Vatnajokull eruption on ice flow and ice cap stability, EOS Transactions American Geophysical Union, 78, AGU Fall Meeting abstracts, p. F244, 1997.

Vadon, H., F. Sigmundsson, and D. Massonnet, Readjustment of the Krafla spreading segment to crustal rifting measured by Satellite Radar Interferometry, EOS Transactions American Geophysical Union, 78, AGU Fall Meeting abstracts, p. F166, 1997. (oral presentation by FS).

Massonnet, D., F. Sigmundsson, and H. Vadon, Remote sensing of volcano deformation by radar interferometry from various satellites, EOS Transactions American Geophysical Union, 78, AGU Fall Meeting abstracts, p. F817, 1997. (oral presentation by FS)

Alves, M. M., S. Jonsson, and F. Sigmundsson, Low rates of deformation of the Furnas and Fogo volcanoes, Sao Miguel, Azores, observed with the Global Positioning System, EOS Transactions American Geophysical Union, 78, AGU Fall Meeting abstracts, p. F160, 1997.

Gudmundsson M. T., F. Sigmundsson, and H. Bjornsson, The October 1996 Gjalp Eruption and the formation of hyaloclastite mountains (in Icelandic), Geoscience Society of Iceland, Conference on 1996 Vatnajokull Eruption, abstract volume, p. 10, February 1997.

Gudmundsson M. T., F. Sigmundsson, Th. Hognadottir, and H. Bjornsson, The 1996 Gjalp eruption: Chronology of events and ice melt history (in Icelandic), Geoscience Society of Iceland, Conference on 1996 Vatnajokull Eruption, abstract volume, p. 11, February 1997.


1996:

Sigmundsson, F., and H. Vadon, Oblique spreading at the Mid-Atlantic Ridge, SW-Iceland: 3D crustal velocity field inferred from satellite radar interferometry and geologic evidence, EOS Transactions American Geophysical Union, 77, AGU Fall Meeting abstracts, p. F143, 1996.

Vadon, H., and F. Sigmundsson, Plate movements and volcano deformation from satellite radar interferometry: 1992-1995 crustal deformation at the Mid-Atlantic Ridge, SW Iceland, EOS Transactions American Geophysical Union, 77, AGU Fall Meeting abstracts, p. F50, 1996. (oral presentation by FS).

Sigmundsson, F., Deformation of the Hekla volcano, south Iceland, European Seismological Commission, XXV General Assembly, Reykjavik, September 9-14, Abstract volume, p. 100, 1996.

Jonsson, S., P. Einarsson, and F. Sigmundsson, Extension across a divergent plate boundary, the eastern volcanic rift zone, south Iceland, 1967-1994, observed with GPS and EDM, European Seismological Commission, XXV General Assembly, Reykjavik, September 9-14, Abstract volume, p. 113, 1996.

Sigmundsson, F., Inversion of geodetic data from Hengill triple junction, Iceland: Rift subsidence and volcano inflation, paper presented at the 21th General Assembly of EGS in the Hague, May 1996, Annales Geophysicae, Supplement I to vol. 14., p. C257, 1996.

Sigmundsson, F., P. Einarsson, S. Rognvaldsson, G. Foulger, and G. Thorbergsson, 1994-1995 earthquake swarm at Hengill triple junction, Iceland: Triggering of earthquakes by an inflating magma chamber in a zone of horizontal shear stress?, paper presented at the 21th General Assembly of EGS in the Hague, May 1996, Annales Geophysicae, Supplement I to vol. 14., p. C94, 1996.

Li, X., D. Wolf, and F. Sigmundsson, Predictions of uplift and gravity change caused by recent melting of the Vatnajokull ice cap, Iceland, paper presented at the 21th General Assembly of EGS in the Hague, May 1996, Annales Geophysicae, Supplement I to vol. 14., p. C20, 1996.

Sigmundsson, F., P. Einarsson, S. Th. Rognvaldsson, and G. Thorbergsson, Crustal uplift, expansion, and earthquakes in the Hengill area 1994-1995: Is the source increased pressure within the Hromundartindur volcanic system?, Geoscience Society of Iceland, Spring Meeting, Abstract volume, p. 24, 1996.

Sigmundsson, F., Using Global Positioning System Geodesy for seismotectonic studies, Journees Luxembourgeoises de Geodynamique, 80th session, 11-13 March, Comptes-Rendus, edited by M. Bonatz, p. 51, 1996,


1995:

Sigmundsson, F., Triggering of eruptions by release of overburden pressure: Theory and application to subglacial volcanoes, EOS Transactions American Geophysical Union, 76, AGU 1995 Fall Meeting abstracts, p. F198, 1995.

Tryggvason, E., and F. Sigmundsson, Slow inflation of the Furnas volcano, Sao Miguel, Azores, suggested from initial levelling and GPS measurements, EOS Transactions American Geophysical Union, 76, AGU 1995 Fall Meeting abstracts, p. F156, 1995. (oral presentation by FS).

Jonsson, S., P. Einarsson, and F. Sigmundsson, Extension across a divergent plate boundary, the eastern rift zone in south Iceland, 1967-1994, observed with EDM and GPS, EOS Transactions American Geophysical Union, 76, AGU 1995 Fall Meeting abstracts, p. F581, 1995.

Sigmundsson, F., and P. Einarsson, Slow inflation of the Furnas volcano, Azores (in Icelandic), Iceland Geological Society 1995 Spring Meeting, abstract volume, 1995.


1994:

Sigmundsson, F., P. Einarsson, and R. Bilham, Rift-transform kinematics in south Iceland: Deformation from GPS measurements 1986-1992, EOS Transactions American Geophysical Union, 75, AGU 1994 Fall Meeting abstracts, p. 180, 1994. (poster)

Einarsson, P., and F. Sigmundsson, Oblique spreading on the Reykjanes Peninsula, SW Iceland: Modes of crustal deformation, EOS Transactions American Geophysical Union, 75, AGU 1994 Fall Meeting abstracts, p. 589, 1994.

Camitz, J., F. Sigmundsson, G. Foulger, C. Voelksen, C.-H. Jahn, and P. Einarsson, Plate boundary deformation and continuing deflation of the Askja volcano, North Iceland, determined with GPS, 1987-1993, EOS Transactions American Geophysical Union, 75, AGU 1994 Fall Meeting abstracts, p. 165, 1994. (oral presentation by FS).

Sigmundsson, F., Monitoring of crustal deformation in Iceland: Implications for seismic and volcanic hazard assessment, Workshop on monitoring and research for mitigating seismic and volcanic risk, October 20-22 1994, Reykjavik, Iceland, Icelandic Meteorological Office and Commission of the European Communities, abstract volume, 1994.

Sigmundsson, F., and E. Tryggvason, GPS geodesy at the Krafla volcano 1993-1994: Comparison with EDM measurements, International workshop on European Laboratory Volcanoes, Catania Sicily, 18-21 June 1994, Commission of the European Communities, abstract volume, 1994.

Sigmundsson, F., M. Alves, K. Palsson, and E. Tryggvason, First GPS measurements at the Furnas volcano, International workshop on European Laboratory Volcanoes, Catania Sicily, 18-21 June 1994, Commission of the European Communities, abstract volume, 1994.

Sigmundsson, F., and P. Einarsson, GPS monitoring of crustal deformation in south Iceland 1986-1992, and the age of the south Iceland seismic zone (in Icelandic), Iceland Geological Society 1994 Spring Meeting, abstract volume, p. 8, 1994.

Camitz, J., and F. Sigmundsson, GPS measurements of Crustal deformation at the Askja volcano, North Iceland, 1987-1993, Iceland Geological Society 1994 Spring Meeting, abstract volume, p. 22, 1994.

Sigmundsson, F., and E. Tryggvason, Monitoring of crustal deformation at Katla volcano 1967-1993 (in Icleandic), Conference on the Katla volcano, 26 February 1994, Reykjavik, Iceland, Iceland Geological Society, abstract volume, p. 18, 1994.

Sigmundsson, F., P. Einarsson,, and R. Bilham, Crustal deformation from GPS measurements in south Iceland: 1986-1992, NorFa Workshop on Earthquake prediction research in the south Iceland test area: State-of-the art, January 4-7, 1994, Hveragerdi, Iceland, Icelandic Meteorological Office, abstract volume, p. 6, 1994.


1993:

Sigmundsson, F., and P. Einarsson, Sub-lithospheric viscosity beneath Iceland, Second Nordic Symposium in Geosciences, Tanumstrand, Sweden, 5-9 September, 1993, Abstract supplement no. 5 to TERRA nova, p. 14, 1993.

Einarsson, P., and F. Sigmundsson, GPS experiments in geodynamics in Iceland, Second Nordic Symposium in Geosciences, Tanumstrand, Sweden, 5-9 September, 1993, Abstract supplement no. 5 to TERRA nova, p. 19, 1993.

Sturkell, E., F. Sigmundsson, and P. Einarsson, Crustal deformation on the Reykjanes Peninsula 1986-1992 determined with GPS measurements (in Icelandic), Iceland Geological Society 1993 Spring Meeting, abstract volume, p. 18, 1993.


1992:

Sigmundsson, F., R. Bilham, and P. Einarsson, Magma chamber deflation recorded by the Global Positioning System: The Hekla 1991 eruption, Workshop on deformation of volcanoes; measurements and modelling, 21-26 August 1992, Laugar, Iceland, IAVCEI Volcano Geophysics Commission, abstract volume, p. 24, 1992.

Behr, J., R. Bilham, and F. Sigmundsson, Monitoring of magma inflation using a biaxial Michelson tiltmeter in Long Valley Caldera, California, Workshop on deformation of volcanoes; measurements and modelling, 21-26 August 1992, Laugar, Iceland, IAVCEI Volcano Geophysics Commission, abstract volume, p. 9, 1992.


1991:

Sigmundsson, F., P. Einarsson, C. Hackman, R. Bilham, and G. Thorbergsson, Displacement of GPS control points associated with the 1991 Hekla eruption, EOS Transactions American Geophysical Union, 72, AGU 1991 Fall Meeting abstracts, p. 115, 1991.

Einarsson, P., Sigmundsson, F., and G. Thorbergsson, Glacio-isostatic uplift around the Vatnajökull ice cap due to ice loss in this century, EOS Transactions American Geophysical Union, 72, AGU 1991 Fall Meeting abstracts, p. 112, 1991. (oral presentation by FS)

Jackson, M., K. Adhikari, S. Barrientos, J. Behr, B. Bernard, R. Bilham, P. Bodin, G. Chitrakar, R. DeConto, L. Denham, J. Faller, J. Fried, D. Kauffman, N. Karki, D. Kayastha, P. Molnar, J. Normandeau, G. Peter, B. Phuyal, T. Pradhananga, B. Sharma, B. Shrestha, K. Shresta, F. Sigmundsson, B. Stephens, B. Washburn, W. Wenying, D. Winester, and Z. Guogong, Trans-Himalayan geodesy, EOS Transactions American Geophysical Union, 72, AGU 1991 Fall Meeting abstracts, p. 112, 1991.


1990:

Sigmundsson, F., and A. Hjartarson, Postglacial rebound and viscosity of the uppermost mantle in Iceland, Annales Geophysicae, 1990 Special Issue for the European Geophysical Society meeting in Copenhagen 23-27 April 1990, p. 29, 1990.


1989:

Sigmundsson, F., M. C. Hackman, P. Einarsson, H. Bjornsson, M. Debiche, T. James, J. Morgan, A. Einarsson, B. Gudmundsson, G. Ţorbergsson, G. Vigfusson, and G. Foulger, Deformation in South Iceland 1986-1989, EOS Transactions American Geophysical Union, 70, AGU 1989 Fall Meeting abstracts, p. 1053, 1989.