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Browsing Háskóli Íslands by Subject "Jöklar"
Now showing items 1-16 of 16
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(Hið íslenska náttúrufræðifélag, 1997)Heitur reitur er landsvæði sem einkennist af mikilli eldvirkni og jarðhita og stendur hátt yfir umhverfið. Ísland er einn af stærstu heitu reitum jarðar og gnæfir 2-4 km yfir venjulega hæð Norður-Atlantshafshryggjarins sem gengur í gegnum landið. Markmið ... -
(Cambridge University Press (CUP), 2017-01-25)We assess ice loss and velocity changes between 1985 and 2014 of three tidewater and fiveland terminating glaciers in Godthabsfjord (Nuup Kangerlua), Greenland. Glacier thinning accounted for 43.8 +/- 0.2 km(3) of ice loss, equivalent to 0.10 mm eustatic ...
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(Elsevier BV, 2021-08)Glaciers have been an increasingly studied topic in the ecosystem services (ES) literature, with 6 multiple scientific studies affirming a critical and diverse contribution to human well-being. 7 However, the literature to date on glacier ES has lacked ...
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(MDPI AG, 2017-04-25)Albedo is a key variable in the response of glaciers to climate. In Iceland, large albedo variations of the ice caps may be caused by the deposition of volcanic ash (tephra). Sparse in situ measurements are insufficient to characterize the spatial ...
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(Wiley-Blackwell, 2018-02)Contiguous sampling of ice spanning key intervals of the deglaciation from the Greenland ice cores of NGRIP, GRIP and NEEM has revealed three new silicic cryptotephra deposits that are geochemically similar to the well‐known Borrobol Tephra (BT). The ...
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(Copernicus GmbH, 2016-01-19)In this paper we describe how recent high-resolution digital elevation models (DEMs) can be used to extract glacier surface DEMs from old aerial photographs and to evaluate the uncertainty of the mass balance record derived from the DEMs. We present a ...
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(Elsevier BV, 2020-09)We synthesize the current understanding of glacier activity on Svalbard from the end of the Late Pleistocene (12,000 yrs. before present) to the end of the Little Ice Age (c. 1920 AD). Our glacier history is derived from the SVALHOLA database, the first ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2017-01)Located on the mid-Atlantic ridge, Iceland has the largest volcaniclastic desert on Earth, created by glacio-fluvial processes and frequent volcanic eruptions. Due to its location along the North Atlantic Storm track, Iceland frequently experiences ...
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(Copernicus GmbH, 2017-07-14)A simulation of the surface climate of Vatnajökull ice cap, Iceland, carried out with the regional climate model HIRHAM5 for the period 1980–2014, is used to estimate the evolution of the glacier surface mass balance (SMB). This simulation uses a new ...
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(Frontiers Media SA, 2020-06-03)To date, most mass balance studies in Iceland have concentrated on the three largest ice caps. This study turns the focus toward smaller Icelandic glaciers, presenting geodetic mass-balance estimates for 14 of them (total area 1,005 km2 in 2017) from ...
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(Copernicus GmbH, 2018-01-19)Glaciers with extensive surface debris cover respond differently to climate forcing than those without supraglacial debris. In order to include debris-covered glaciers in projections of glaciogenic runoff and sea level rise and to understand the ...
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(Copernicus GmbH, 2019-01-08)Strong similarities in Holocene climate reconstructions derived from multiple proxies (BSi, TOC – total organic carbon, δ13C, C∕N, MS – magnetic susceptibility, δ15N) preserved in sediments from both glacial and non-glacial lakes across Iceland indicate ...
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(Cambridge University Press (CUP), 2016-02)The mechanical properties of glacier beds play a fundamental role in regulating the sensitivity of glaciers to environmental forcing across a wide range of timescales. Glaciers are commonly underlain by deformable till whose mechanical properties and ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2019-04)Iceland’s position at the confluence of major oceanic and atmospheric fronts results in a highly sensitive climate evident in both instrumental and paleo records. However, open questions still remain regarding the pre-instrumental evolution of climate, ...
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(MDPI AG, 2018-11-15)Several simulations of the surface climate and energy balance of Vatnajökull ice cap, Iceland, are used to estimate the glacier runoff for the period 1980–2015 and the sensitivity of runoff to the spring conditions (e.g., snow thickness). The simulations ...
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(Bergur Einarsson, 2018-05-23)Continuous GPS measurements on three broad and gently sloping temperate ice-cap outlets in southern and western Vatnajökull, southeast Iceland, and in northern Hofsjökull, central Iceland, are the subject of this thesis. The measurements show events ...
Now showing items 1-16 of 16