Vatnajokull. Scientific Results of the Swedish-Icelandic Investigations 1936-37-38. Chapter XI

Ahlmann, Hans W:son; Thorarinsson, Sigurdur

doi:10.2307/519895

Cited by 89 publications

(52 citation statements)

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“…Öraefajökull has erupted only twice in the last 1000 years -in 1362 and 1727 -leading some to conclude that there may be a connection between periods of volcanic activity and glacier advances (Gudmundsson 1998;Larsen 2000). Regardless of any apparent connection, there is still some doubt as to whether the marginal fluctuations of ice caps draining active volcanoes are truly representative of climatic change (Thórarinsson 1943;Sturm et al, 1991). Hence, the findings of Gudmundsson (1998), Kirkbride & Dugmore (2001), Bradwell (2004a, and Casely & Dugmore (2004) may not be applicable across Iceland as a whole.…”

Section: Geomorphological Evidence Of Glacier Fluctuations In Icelandmentioning

confidence: 76%

“…Many of Iceland's larger outlet glaciers have been systematically monitored since 1930 (Eythorsson 1935;. Consequently, a general description of glacier conditions exists for the last ~1000 years (Thórarinsson 1943), in addition to a detailed knowledge of ice-front fluctuations for the last 70 years .…”

Section: Geomorphological Evidence Of Glacier Fluctuations In Icelandmentioning

confidence: 99%

“…Furthermore, Iceland has a unique documentary record of icefront positions between the time of settlement, around AD 870, to the early 20 th century (Magnússon 1610;Palsson 1795;Thórarinsson 1943). Many of Iceland's larger outlet glaciers have been systematically monitored since 1930 (Eythorsson 1935;.…”

Section: Geomorphological Evidence Of Glacier Fluctuations In Icelandmentioning

confidence: 99%

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The Little Ice Age glacier maximum in Iceland and the North Atlantic Oscillation: evidence from Lambatungnajökull, southeast Iceland

Bradwell

Dugmore

Sugden

2008

Boreas

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This article examines the link between late Holocene fluctuations of Lambatungnajökull, an outlet glacier of the Vatnajökull ice cap in Iceland, and variations in climate. Geomorphological evidence is used to reconstruct the pattern of glacier fluctuations, while lichenometry and tephrostratigraphy are used to date glacial landforms deposited over the past ˜400 years. Moraines dated using two different lichenometric techniques indicate that the most extensive period of glacier expansion occurred shortly before c. AD 1795, probably during the 1780s. Recession over the last 200 years was punctuated by re‐advances in the 1810s, 1850s, 1870s, 1890s and c. 1920, 1930 and 1965. Lambatungnajökull receded more rapidly in the 1930s and 1940s than at any other time during the last 200 years. The rate and style of glacier retreat since 1930 compare well with other similar‐sized, non‐surging, glaciers in southeast Iceland, suggesting that the terminus fluctuations are climatically driven. Furthermore, the pattern of glacier fluctuations over the 20th century broadly reflects the temperature oscillations recorded at nearby meteorological stations. Much of the climatic variation experienced in southern Iceland, and the glacier fluctuations that result, can be explained by secular changes in the North Atlantic Oscillation (NAO) Advances of Lambatungnajökull generally occur during prolonged periods of negative NAO index. The main implication of this work relates to the exact timing of the Little Ice Age in the Northeast Atlantic. Mounting evidence now suggests that the period between AD 1750 and 1800, rather than the late 19th century, represented the culmination of the Little Ice Age in Iceland.

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Section: Geomorphological Evidence Of Glacier Fluctuations In Icelandmentioning

confidence: 76%

Section: Geomorphological Evidence Of Glacier Fluctuations In Icelandmentioning

confidence: 99%

Section: Geomorphological Evidence Of Glacier Fluctuations In Icelandmentioning

confidence: 99%

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The Little Ice Age glacier maximum in Iceland and the North Atlantic Oscillation: evidence from Lambatungnajökull, southeast Iceland

Bradwell

Dugmore

Sugden

2008

Boreas

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“…The recent ice-front fluctuations and history of landform development at Svínafellsjökull are relatively well known (Hannesdóttir et al, 2015a(Hannesdóttir et al, , 2015bSigurdsson, 1998;Thompson, 1988;Thorarinsson, 1943). During the Little Ice Age (LIA -eighteenth and nineteenth centuries) and first few years of the twentieth century, the terminus of Svínafellsjökull extended well beyond its present-day position where it coalesced with the neighbouring Skaftafellsjökull until 1935 (Thompson, 1988;Thorarinsson, 1943).…”

Section: Svínafellsjökullmentioning

confidence: 99%

“…During the Little Ice Age (LIA -eighteenth and nineteenth centuries) and first few years of the twentieth century, the terminus of Svínafellsjökull extended well beyond its present-day position where it coalesced with the neighbouring Skaftafellsjökull until 1935 (Thompson, 1988;Thorarinsson, 1943). Since that time, overall retreat of the Svínafellsjökull ice-front, totalling around ∼500 m, has been punctuated by numerous minor oscillations and stillstands (Thompson, 1988).…”

Section: Svínafellsjökullmentioning

confidence: 99%

The geomorphology of Svínafellsjökull and Virkisjökull-Falljökull glacier forelands, southeast Iceland

et al. 2017

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The base digital elevation model (DEM) is compiled from an ice-cap wide airborne LiDAR dataset. The mapped glacial landforms are dominated by sequences of recessional moraines laid down in the mid-Holocene, the Little Ice Age, and the last ∼100 years; the state of landform preservation generally decreasing with age. Interspersed with glaciofluvial sedimentation associated with typical ice-marginal retreat sequences is key geomorphological evidence of high-magnitude volcanogenic outburst floods (jökulhlaups) associated with the eruptions of Öraefajökull in 1362 and 1727 CE. Ice-front retreat has accelerated since c.2005 leaving a rapidly evolving buried-ice landscape in front of Virkisjökull-Falljökull -including an ice-cored esker, a large ice-floored (supraglacial) lake, and numerous actively forming kettle holes and ice caverns. This map could act as a 'reference frame' for geomorphologists studying the temporal evolution of glacial landform-sediment assemblages undergoing rapid change. ARTICLE HISTORY

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References

2006

Glacier Science and Environmental Change

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Vatnajokull. Scientific Results of the Swedish-Icelandic Investigations 1936-37-38. Chapter XI

Cited by 89 publications

References 0 publications

The Little Ice Age glacier maximum in Iceland and the North Atlantic Oscillation: evidence from Lambatungnajökull, southeast Iceland

The Little Ice Age glacier maximum in Iceland and the North Atlantic Oscillation: evidence from Lambatungnajökull, southeast Iceland

The geomorphology of Svínafellsjökull and Virkisjökull-Falljökull glacier forelands, southeast Iceland

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