Characteristics of a crater glacier at Ushkovsky volcano, Kamchatka, Russia, as revealed by the physical properties of ice cores and borehole thermometry

Shiraiwa, Takayuki; Muravyev, Yaroslav D.; Kameda, Takao; Nishio, Fumihiko; Toyama, Yoko; Takahashi, Akiyoshi; Ovsyannikov, A. A.; Salamatin, Andrey N.; Yamagata, Kotaro

doi:10.3189/172756501781832061

Cited by 31 publications

(53 citation statements)

References 17 publications

(26 reference statements)

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“…), a temperature of À14.68C was recorded in glacier ice at a depth of 27 m (below the depth of zero annual amplitude). At a depth of 10 m, the MAGT in cold firn was measured at À15.88C (August 1996 to July 1997, Shiraiwa et al, 2001) and provides an approximation of the MAAT (Loewe, 1970). This leads to an estimated regional lapse rate of À0.00458C/m.…”

Section: Kamchatka Research Regionmentioning

confidence: 99%

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Thermal state of permafrost in Russia

Romanovsky

Drozdov

Oberman³

et al. 2010

Permafrost & Periglacial

444

315

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The results of the International Permafrost Association's International Polar Year Thermal State of Permafrost (TSP) project are presented based on field measurements from Russia during the IPY years (2007-09) and collected historical data. Most ground temperatures measured in existing and new boreholes show a substantial warming during the last 20 to 30 years. The magnitude of the warming varied with location, but was typically from 0.58C to 28C at the depth of zero annual amplitude. Thawing of Little Ice Age permafrost is ongoing at many locations. There are some indications that the late Holocene permafrost has begun to thaw at some undisturbed locations in northeastern Europe and northwest Siberia. Thawing of permafrost is most noticeable within the discontinuous permafrost domain. However, permafrost in Russia is also starting to thaw at some limited locations in the continuous permafrost zone. As a result, a northward displacement of the boundary between continuous and discontinuous permafrost zones was observed. This data set will serve as a baseline against which to measure changes of near-surface permafrost temperatures and permafrost boundaries, to validate climate model scenarios, and for temperature reanalysis.

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Section: Kamchatka Research Regionmentioning

confidence: 99%

“…Basal melting is expected beneath thick glaciers and in calderas the glaciers are polythermal (i.e. the central part of the bed is frozen) (Shiraiwa et al, 2001;Salamatin et al, 2002). A 114Àm deep borehole at 3600 m a.s.l.…”

Section: Kamchatka Research Regionmentioning

confidence: 99%

Thermal state of permafrost in Russia

Romanovsky

Drozdov

Oberman³

et al. 2010

Permafrost & Periglacial

444

315

View full text Add to dashboard Cite

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“…In this paper we compare the glacial histories in Kamchatka with two climatic proxies: a ring-width based warmseason temperature record, and an ice-core based annual precipitation record (Shiraiwa et al, 1997(Shiraiwa et al, , 2001). This comparison helps to identify the climatic signals related to glacier advances in Kamchatka as solid precipitation and summer temperature are the two primary drivers of glacier mass balance (Patterson, 1994).…”

Section: Pacific Oceanmentioning

confidence: 99%

Multiproxy records of climate variability for Kamchatka for the past 400 years

et al. 2007

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Abstract. Tree ring, ice core and glacial geologic histories for the past several centuries offer an opportunity to characterize climate variability and to identify the key climate parameters forcing glacier expansion in Kamchatka over the past 400 years. A newly developed larch ring-width chronology (AD 1632(AD -2004) is presented that is sensitive to past summer temperature variability. Individual low growth years in the larch record are associated with several known and proposed volcanic events from the Northern Hemisphere. The comparison of ring width minima and those of Melt Feature Index of Ushkovsky ice core helps confirm a 1-3 year dating accuracy for this ice core series over the late 18th to 20th centuries. Decadal variations of low summer temperatures (tree-ring record) and high annual precipitation (ice core record) are broadly consistent with intervals of positive mass balances measured and estimated at several glaciers in 20th century, and with moraine building. According to the tree-ring data the 1860s-1880s were the longest coldest interval in the last 350 years. The latest part of this period (1880s) coincided with the positive anomaly in accumulation. This coincidence led to a positive mass balance, which is most likely responsible for glacier advances and moraine deposition of the end of 19th-early 20th centuries. As well as in some other high latitude regions (Spitsbergen, Polar Urals, Franz Jozef Land etc.) in Kamchatka these advances marked the last millennium glacial maximum. In full agreement with subsequent summer warming trend, inferred both from instrumental and tree ring data, glacier advances since 1880s have been less extensive. The late 18th century glacier expansion coincides with the inferred summer temperature decrease recorded by the ring width chronology. However, both the advance and the summer temperature decrease were less prominent that in the end of 19th century. Comparisons of the glacier history in Kamchatka with records from Alaska Correspondence to: O. Solomina (olgasolomina@yandex.ru) and the Canadian Rockies suggests broadly consistent intervals of glacier expansion and inferred summer cooling during solar irradiance minima.

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“…The volcanic activity can also affect the mass balance due to changes in albedo caused by ash deposition and lava flows, which can change the amount of ablation at the surface (Shiraiwa et al, 2001). In order to estimate the glacier surface mass balance, several 4-m coligüe (Chilean bamboo) and some 10-m PVC stakes have been monitored monthly, including snow height variations, snow densities and surface topography measurements, following the "combined" method (Østrem & Brugman, 1991).…”

Section: Introductionmentioning

confidence: 99%

Glacier shrinkage and negative mass balance in the Chilean Lake District (40°S) / Rétrécissement glaciaire et bilan massique négatif dans la Région des Lacs du Chili (40°S)

Rivera

Bown²,

Casassa³

et al. 2005

Hydrological Sciences Journal

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Ice-capped volcanoes of the Chilean Lake District have shown significant glacier retreat during recent decades, probably in response to tropospheric warming and precipitation decrease. Volcán Mocho-Choshuenco (39°55′S, 72°02′W) is one of the main active volcanoes in this part of the country. A mass balance programme was initiated on its southeastern glacier in 2003, in view of its representative conditions as an ice body that is presumably not affected by current volcanic activity.

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Characteristics of a crater glacier at Ushkovsky volcano, Kamchatka, Russia, as revealed by the physical properties of ice cores and borehole thermometry

Cited by 31 publications

References 17 publications

Thermal state of permafrost in Russia

Thermal state of permafrost in Russia

Multiproxy records of climate variability for Kamchatka for the past 400 years

Glacier shrinkage and negative mass balance in the Chilean Lake District (40°S) / Rétrécissement glaciaire et bilan massique négatif dans la Région des Lacs du Chili (40°S)

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