Multiple sources for tephra from AD 1259 volcanic signal in Antarctic ice cores
Sign Up to like & getrecommendations! Published in 2019 at "Quaternary Science Reviews"
DOI: 10.1016/j.quascirev.2019.03.005
Abstract: Abstract Strong volcanic signals simultaneously recorded in polar ice sheets are commonly assigned to major low-latitude eruptions that dispersed large quantities of aerosols in the global atmosphere with the potential of inducing climate perturbations. Parent… read more here.
Keywords: antarctic ice; volcanic signal; eruption; tephra ... See more keywords
Response of the Intertropical Convergence Zone to Antarctic Ice Sheet Melt
Sign Up to like & getrecommendations! Published in 2018 at "Geophysical Research Letters"
DOI: 10.1029/2018gl078659
Abstract: Past cooling events in the Northern Hemisphere have been shown to impact the location of the intertropical convergence zone (ITCZ) and therewith induce a southward shift of tropical precipitation. Here we use high resolution coupled… read more here.
Keywords: intertropical convergence; ice sheet; response; antarctic ice ... See more keywords
Biogeochemical Connectivity Between Freshwater Ecosystems beneath the West Antarctic Ice Sheet and the Sub‐Ice Marine Environment
Sign Up to like & getrecommendations! Published in 2020 at "Global Biogeochemical Cycles"
DOI: 10.1029/2019gb006446
Abstract: Although subglacial aquatic environments are widespread beneath the Antarctic ice sheet, subglacial biogeochemistry is not well understood, and the contribution of subglacial water to coastal ocean carbon and nutrient cycling remains poorly constrained. The Whillans… read more here.
Keywords: dissolved organic; antarctic ice; ice sheet; ice ... See more keywords
Radar‐Detected Englacial Debris in the West Antarctic Ice Sheet
Sign Up to like & getrecommendations! Published in 2019 at "Geophysical Research Letters"
DOI: 10.1029/2019gl084012
Abstract: Structural glaci‐geological processes can entrain basal sediment into ice, leading to its transportation and deposition downstream. Sediments potentially rich in essential nutrients, like silica and iron, can thus be transferred from continental sources to the… read more here.
Keywords: west antarctic; antarctic ice; ice sheet; ice ... See more keywords
Observations of Buried Lake Drainage on the Antarctic Ice Sheet
Sign Up to like & getrecommendations! Published in 2020 at "Geophysical Research Letters"
DOI: 10.1029/2020gl087970
Abstract: Between 1992 and 2017, the Antarctic Ice Sheet (AIS) lost ice equivalent to 7.6 ± 3.9 mm of sea level rise. AIS mass loss is mitigated by ice shelves that provide a buttress by regulating… read more here.
Keywords: antarctic ice; buried lake; ice sheet; lake drainage ... See more keywords
Marijuana's benefits, Antarctic ice cracks and a $500-million donation
Sign Up to like & getrecommendations! Published in 2017 at "Nature"
DOI: 10.1038/541264a
Abstract: Marijuana has some identifiable positive effects on health, but evidence for many other claimed benefits is inconclusive, says a huge 12 January report from the US National Academies of Sciences, Engineering, and Medicine. The report… read more here.
Keywords: 500 million; benefits antarctic; antarctic ice; marijuana benefits ... See more keywords
Centennial-scale Holocene climate variations amplified by Antarctic Ice Sheet discharge
Sign Up to like & getrecommendations! Published in 2017 at "Nature"
DOI: 10.1038/nature20582
Abstract: Proxy-based indicators of past climate change show that current global climate models systematically underestimate Holocene-epoch climate variability on centennial to multi-millennial timescales, with the mismatch increasing for longer periods. Proposed explanations for the discrepancy include… read more here.
Keywords: ice sheet; climate; sheet discharge; antarctic ice ... See more keywords
Initiation and long-term instability of the East Antarctic Ice Sheet
Sign Up to like & getrecommendations! Published in 2017 at "Nature"
DOI: 10.1038/nature25026
Abstract: Antarctica’s continental-scale ice sheets have evolved over the past 50 million years. However, the dearth of ice-proximal geological records limits our understanding of past East Antarctic Ice Sheet (EAIS) behaviour and thus our ability to evaluate… read more here.
Keywords: ice sheet; subglacial basin; aurora subglacial; antarctic ice ... See more keywords
Meltwater produced by wind-albedo interaction stored in an East Antarctic ice shelf
Sign Up to like & getrecommendations! Published in 2017 at "Nature Climate Change"
DOI: 10.1038/nclimate3180
Abstract: Surface melt has been tied to the collapse of Antarctic Peninsula ice shelves. This study illustrates that warmer temperatures associated with katabatic winds drive similar processes in an East Antarctic ice shelf, highlighting vulnerability to… read more here.
Keywords: meltwater produced; ice shelf; antarctic ice; east antarctic ... See more keywords
Spatio-temporal variability of processes across Antarctic ice-bed–ocean interfaces
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-04583-0
Abstract: Understanding how the Antarctic ice sheet will respond to global warming relies on knowledge of how it has behaved in the past. The use of numerical models, the only means to quantitatively predict the future, is… read more here.
Keywords: variability processes; spatio temporal; processes across; antarctic ice ... See more keywords
Mass balance of the Antarctic Ice Sheet from 1992 to 2017
Sign Up to like & getrecommendations! Published in 2018 at "Nature"
DOI: 10.1038/s41586-018-0179-y
Abstract: The Antarctic Ice Sheet is an important indicator of climate change and driver of sea-level rise. Here we combine satellite observations of its changing volume, flow and gravitational attraction with modelling of its surface mass… read more here.
Keywords: 1992 2017; mass balance; mass; antarctic ice ... See more keywords