ground ice
New ground ice maps for Canada using a paleogeographic modelling approach
... Abstract. Ground ice melt caused by climate-induced permafrost degradation may trigger significant ecological change, damage infrastructure, and alter biogeochemical cy- ...fundamental ground ...
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Observing Muostakh disappear: permafrost thaw subsidence and erosion of a ground-ice-rich island in response to arctic summer warming and sea ice reduction
... total ground ice content on Muostakh is made up of equal amounts of intrasedimentary and macro ground ice and sums up to 87 %, rendering the island particularly susceptible to ero- sion along ...
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Time-lapse refraction seismic tomography for the detection of ground ice degradation
... identify ground ice ...of ice in the active layer, which disappeared until the date of the later ...in ice and water contents also for a multi-annual ob- servation ...
17
Dissolved organic carbon (DOC) in Arctic ground ice
... melting ground ice was shown to be highly bioavailable and can even enhance organic matter degrada- tion of the host material by increased enzyme activity in ice wedge meltwater (Vonk et ...by ...
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Distinguishing ice-rich and ice-poor permafrost to map ground temperatures and ground ice occurrence in the Swiss Alps
... and ground ice map (PGIM) presented here aims to reproduce the elevational permafrost gap by providing a better delimitation of the two main types of permafrost in alpine ...of ice-poor permafrost ...
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Features caused by ground ice growth and decay in Late Pleistocene fluvial deposits, Paris Basin, France
... Origin of the brittle deformation 529 530 The sites of Marcilly-sur-Seine and Gourgançon show that thermokarst lakes developed 531 during the Last Glacial in alluvial deposits in the Par[r] ...
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Thaw processes in ice-rich permafrost landscapes represented with laterally coupled tiles in a land surface model
... excess ground ice (thermokarst) is ...excess ice in these features sets off a feedback mechanism through subsidence, enhanced snow accumulation, reduced winter heat loss, and increased soil ...
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Permafrost soils and carbon cycling
... mation in Northern Russia; one during the early Holocene around 9000 to 8000 years BP and the second one during the late Holocene around 5000 to 4000 years BP. Formation of these lakes has been largely attributed to ...
25
Origin, burial and preservation of late Pleistocene-age glacier ice in Arctic permafrost (Bylot Island, NU, Canada)
... glacier ice and other types of massive ground ice in the permafrost is usually based on cryostratigraphy combined with detailed studies of physical, geochemical and isotopic properties of the ...
15
Imaging the structure of cave ice by ground-penetrating radar
... the ice exists for at least several years, it can be classified as a permafrost ...content, ice chemistry, and temperature conditions during permafrost ...the ice. Cave ice thickness ...
12
Cryostratigraphy, sedimentology, and the late Quaternary evolution of the Zackenberg River delta, northeast Greenland
... Abstract. The Zackenberg River delta is located in northeast Greenland (74 ◦ 30 0 N, 20 ◦ 30 0 E) at the outlet of the Zacken- berg fjord valley. The fjord-valley fill consists of a series of terraced deltaic deposits ...
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Late-glacial to late-Holocene shifts in global precipitation 18O
... groundwater, ground ice, glacial ice and cave calcite records, and to compare these measurements with output from five state-of-the-art isotope-enabled general circulation model simulations of last ...
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Ice Box Calorimetry: A useful method for estimating heat discharge rates through steaming ground
... technique, Ice Box Calorimetry, for estimating heat discharge rates through steaming ...ground. Ice within an aluminum box provides a powerful tool for measuring the total heat transfer from the ...
5
Trends and abrupt changes in 104 years of ice cover and water temperature in a dimictic lake in response to air temperature, wind speed, and water clarity drivers
... maximum ice thickness, ice-on date, ice-off date, and ice cover duration using the method of Rodi- onov (2004) shows that the most statistically significant tim- ing of the shift in these ...
22
Satellite-derived submarine melt rates and mass balance (2011–2015) for Greenland’s largest remaining ice tongues
... the ice tongue surface elevation due to ...of ice thickness at the flux ...the ice tongues con- sidered are well below the equilibrium line and any remain- ing firn layer is expected to be thin and ...
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Retrieval of cirrus optical thickness and assessment of ice crystal shape from ground-based imaging spectrometry
... and ice crystal shape is required to retrieve a reliable cirrus opti- cal thickness with ...the ice crystal shape is complicated without in situ mea- surements inside the ...of ice crys- tal shape ...
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Brief communication: widespread potential for seawater infiltration on Antarctic ice shelves
... the ice shelf and the depth of the firn ...thin ice driven by the lateral di- vergence of ice shelves which are relatively unconfined, with only shallow embayments ...
7
Retreat of Thwaites Glacier, West Antarctica, over the next 100 years using various ice flow models, ice shelf melt scenarios and basal friction laws
... grounded ice and the ice viscosity parameter over floating ice to best match the modeled surface velocity with the observed surface velocity (Morlighem et ...in ice velocity of a few hundreds ...
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Antarctic summer sea ice concentration and extent: comparison of ODEN 2006 ship observations, satellite passive microwave and NIC sea ice charts
... sea ice cover has shown a slight in- crease (<1%/decade) in overall observed ice extent as de- rived from satellite mapping from 1979 to 2008, contrary to the decline observed in the Arctic ...sea ...
9
Assessment of altimetry using ground-based GPS data from the 88S Traverse, Antarctica, in support of ICESat-2
... This ground-based survey was designed to validate space- borne altimetry and airborne altimetry developed at ...the ground- based GPS data quality and a quantitative assessment of the airborne laser ...
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