Search Results - "Lifton, Nathaniel A"

Regional and global forcing of glacier retreat during the last deglaciation by Shakun, Jeremy D., Clark, Peter U., He, Feng, Lifton, Nathaniel A., Liu, Zhengyu, Otto-Bliesner, Bette L.

“…The ongoing retreat of glaciers globally is one of the clearest manifestations of recent global warming associated with rising greenhouse gas concentrations…”
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Nunataks as barriers to ice flow: implications for palaeo ice sheet reconstructions by Mas e Braga, Martim, Selwyn Jones, Richard, Newall, Jennifer C. H, Rogozhina, Irina, Andersen, Jane L, Lifton, Nathaniel A, Stroeven, Arjen P

“…Numerical models predict that discharge from the polar ice sheets will become the largest contributor to sea-level rise over the coming centuries. However, the…”
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A thicker Antarctic ice stream during the mid-Pliocene warm period by Mas e Braga, Martim, Jones, Richard S., Bernales, Jorge, Andersen, Jane Lund, Fredin, Ola, Morlighem, Mathieu, Koester, Alexandria J., Lifton, Nathaniel A., Harbor, Jonathan M., Suganuma, Yusuke, Glasser, Neil F., Rogozhina, Irina, Stroeven, Arjen P.

“…Abstract Ice streams regulate most ice mass loss in Antarctica. Determining ice stream response to warmer conditions during the Pliocene could provide insights…”
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Regional sea-level highstand triggered Holocene ice sheet thinning across coastal Dronning Maud Land, East Antarctica by Suganuma, Yusuke, Kaneda, Heitaro, Mas e Braga, Martim, Ishiwa, Takeshige, Koyama, Takushi, Newall, Jennifer C., Okuno, Jun’ichi, Obase, Takashi, Saito, Fuyuki, Rogozhina, Irina, Andersen, Jane Lund, Kawamata, Moto, Hirabayashi, Motohiro, Lifton, Nathaniel A., Fredin, Ola, Harbor, Jonathan M., Stroeven, Arjen P., Abe-Ouchi, Ayako

“…Abstract The East Antarctic Ice Sheet stores a vast amount of freshwater, which makes it the single largest potential contributor to future sea-level rise…”
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A topographic hinge-zone divides coastal and inland ice dynamic regimes in East Antarctica by Andersen, Jane L., Newall, Jennifer C., Fredin, Ola, Glasser, Neil F., Lifton, Nathaniel A., Stuart, Finlay M., Fabel, Derek, Caffee, Marc, Pedersen, Vivi K., Koester, Alexandria J., Suganuma, Yusuke, Harbor, Jonathan M., Stroeven, Arjen P.

“…Abstract The impact of late Cenozoic climate on the East Antarctic Ice Sheet is uncertain. Poorly constrained patterns of relative ice thinning and thickening…”
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Complex patterns of glacier advances during the late glacial in the Chagan Uzun Valley, Russian Altai by Gribenski, Natacha, Jansson, Krister N., Lukas, Sven, Stroeven, Arjen P., Harbor, Jonathan M., Blomdin, Robin, Ivanov, Mikhail N., Heyman, Jakob, Petrakov, Dmitry A., Rudoy, Alexei, Clifton, Tom, Lifton, Nathaniel A., Caffee, Marc W.

“…The Southern part of the Russian Altai Mountains is recognized for its evidence of catastrophic glacial lake outbursts. However, little is known about the late…”
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Technical note: A software framework for calculating compositionally dependent in situ 14C production rates by Koester, Alexandria J, Lifton, Nathaniel A

“…Over the last 30 years, in situ cosmogenic nuclides (CNs) have revolutionized surficial processes and Quaternary geologic studies. Commonly measured CNs…”
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Re‐evaluation of MIS 3 glaciation using cosmogenic radionuclide and single grain luminescence ages, Kanas Valley, Chinese Altai by Gribenski, Natacha, Jansson, Krister N., Preusser, Frank, Harbor, Jonathan M., Stroeven, Arjen P., Trauerstein, Mareike, Blomdin, Robin, Heyman, Jakob, Caffee, Marc W., Lifton, Nathaniel A., Zhang, Wei

“…ABSTRACT Previous investigations observed a period of major glacial advances in Central Asia during marine oxygen isotope stage (MIS) 3 (57–29 ka), out of…”
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Last ice sheet recession and landscape emergence above sea level in east-central Sweden, evaluated using in situ cosmogenic 14C from quartz by Goodfellow, Bradley W, Stroeven, Arjen P, Lifton, Nathaniel A, Heyman, Jakob, Lewerentz, Alexander, Hippe, Kristina, Näslund, Jens-Ove, Caffee, Marc W

“…In situ cosmogenic 14C (in situ 14C) in quartz provides a recently developed tool to date exposure of bedrock surfaces of up to ∼ 25 000 years. From outcrops…”
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Cosmogenic dating of Late Pleistocene glaciation, southern tropical Andes, Peru by Shakun, Jeremy D., Clark, Peter U., Marcott, Shaun A., Brook, Edward J., Lifton, Nathaniel A., Caffee, Marc, Shakun, William R.

“…ABSTRACT We present 30 10Be dates on three moraines formed by small glaciers in the southern tropical Andes of Peru to determine the timing of the local Last…”
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Cosmogenic 26Al/10Be surface production ratio in Greenland by Corbett, Lee B., Bierman, Paul R., Rood, Dylan H., Caffee, Marc W., Lifton, Nathaniel A., Woodruff, Thomas E.

“…The assumed value for the cosmogenic 26Al/10Be surface production rate ratio in quartz is an important parameter for studies investigating the burial or…”
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In situ cosmogenic radiocarbon production and 2-D ice flow line modeling for an Antarctic blue ice area by Buizert, Christo, Petrenko, Vasilii V., Kavanaugh, Jeffrey L., Cuffey, Kurt M., Lifton, Nathaniel A., Brook, Edward J., Severinghaus, Jeffrey P.

“…Radiocarbon measurements at ice margin sites and blue ice areas can potentially be used for ice dating, ablation rate estimates and paleoclimatic…”
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Using in situ cosmogenic 10Be, 14C, and 26Al to decipher the history of polythermal ice sheets on Baffin Island, Arctic Canada by Briner, Jason P., Lifton, Nathaniel A., Miller, Gifford H., Refsnider, Kurt, Anderson, Rebecca, Finkel, Robert

“…Constraining the timing of past ice-sheet change is important for assessing the cryospheric expression of climate change and improving our understanding of ice…”
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A millennial perspective on Arctic warming from 14C in quartz and plants emerging from beneath ice caps by Anderson, Rebecca K., Miller, Gifford H., Briner, Jason P., Lifton, Nathaniel A., DeVogel, Stephen B.

“…Observational records show that the area of ice caps on northern Baffin Island, Arctic Canada has diminished by more than 50% since 1958. Fifty 14C dates on…”
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Establishing a Bayesian approach to determining cosmogenic nuclide reference production rates using He-3 by Goehring, Brent M., Muzikar, Paul, Lifton, Nathaniel A.

“…Production rates are a cornerstone of in situ cosmogenic nuclide applications, including surface exposure dating, erosion rate/denudation rate estimates, and…”
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Technical note: A software framework for calculating compositionally dependent in situ 14 C production rates by Koester, Alexandria J., Lifton, Nathaniel A.

“…Over the last 30 years, in situ cosmogenic nuclides (CNs) have revolutionized surficial processes and Quaternary geologic studies. Commonly measured CNs…”
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Holocene mountain glacier history in the Sukkertoppen Iskappe area, southwest Greenland by Schweinsberg, Avriel D., Briner, Jason P., Miller, Gifford H., Lifton, Nathaniel A., Bennike, Ole, Graham, Brandon L.

“…Mountain glaciers and ice caps (GIC) independent of the Greenland Ice Sheet respond rapidly to climate variations and records of their past extent provide…”
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New in situ14C data indicate the absence of nunataks in west Greenland during the Last Glacial Maximum by Graham, Brandon L., Briner, Jason P., Schweinsberg, Avriel D., Lifton, Nathaniel A., Bennike, Ole

“…In situ cosmogenic nuclide exposure age distributions on Ice Age nunataks act as past ice thickness indicators and provide valuable targets for ice sheet model…”
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New in situ 14C data indicate the absence of nunataks in west Greenland during the Last Glacial Maximum by Graham, Brandon L., Briner, Jason P., Schweinsberg, Avriel D., Lifton, Nathaniel A., Bennike, Ole

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Multiple independent records of local glacier variability on Nuussuaq, West Greenland, during the Holocene by Schweinsberg, Avriel D., Briner, Jason P., Licciardi, Joseph M., Bennike, Ole, Lifton, Nathaniel A., Graham, Brandon L., Young, Nicolás E., Schaefer, Joerg M., Zimmerman, Susan H.

“…The sensitivity of mountain glaciers to small-scale climate fluctuations makes records of their past extent among the best proxies for identifying…”
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