Results 31 to 40 of about 3,234 (297)

First-year sea-ice salinity, temperature, density, oxygen and hydrogen isotope composition from the main coring site (MCS-FYI) during MOSAiC legs 1 to 4 in 2019/2020

, 2023
First-year sea-ice thickness, draft, salinity, temperature, and density were measured during near-weekly surveys at the main first-year ice coring site (MCS-FYI) during the MOSAiC expedition (legs 1 to 4). The ice cores were extracted either with a 9-cm (
Ulfsbo, Adam, Granskog, Mats A, Aguilar-Islas, Ana M, Torres-Valdés, Sinhué, Immerz, Antonia, Grosfeld, Lisa, Stefels, Jacqueline, Webster, Melinda, Vortkamp, Martina, Bowman, Jeff S, Whitmore, Laura M, Damm, Ellen, Salganik, Evgenii, Bozzato, Deborah, Chamberlain, Emelia, Abrahamsson, Katarina, Angelopoulos, Michael, Dumitrascu, Adela, Lange, Benjamin Allen, Fong, Allison A, Castellani, Giulia, D'Angelo, Alessandra, Eggers, Sarah Lena, Rinke, Annette, Olsen, Lasse Mørk, Spahic, Susanne, Gradinger, Rolf, Haapala, Jari, Marsay, Christopher M, Shimanchuk, Egor, Ren, Jian, Creamean, Jessie, Snoeijs-Leijonmalm, Pauline, Hoppe, Clara Jule Marie, Gardner, Jessie, Divine, Dmitry V, Kolabutin, Nikolai, Arndt, Stefanie, Lei, Ruibo, Maus, Sönke, Nuibom, Alexey, Verdugo, Josefa, Oggier, Marc, Wischnewski, Laura, Høyland, Knut Vilhelm, Balmonte, John Paul, Sheikin, Igor, Torstensson, Anders, Wang, Lei, Rember, Robert, Müller, Oliver, Fons, Steven W   +51 more
core   +2 more sources

New modeling of the Vostok ice flow line and implication for the glaciological chronology of the Vostok ice core [PDF]

, 2004
We have used new spaceborne (elevation) and airborne (ice thickness) data to constrain a 2D1/2 model of snow accumulation and ice flow along the Ridge B-Vostok station ice flow line (East Antarctica).
Ritz, C., Jouzel, J., Parrenin, F., Remy, F., Siegert, M. G., Siegert, M.J., Rémy, Florence   +6 more
core   +1 more source

Clean subglacial access: prospects for future deep hot-water drilling [PDF]

, 2015
Accessing and sampling subglacial environments deep beneath the Antarctic Ice Sheet presents several challenges to existing drilling technologies. With over half of the ice sheet believed to be resting on a wet bed, drilling down to this environment must
Smith, Andrew, Tranter, Martyn, Smith, Andrew M, Mowlem, M., Ross, N., Hodgson, Dominic A., Ross, N, Parnell, J, Rose, Mike, Mowlem, Matt, Bentley, Michael J., Siegert, MJ, Parnell, John, Mowlem, Matthew, Pearce, D., Hodgson, D.A., Siegert, M.J., Siegert, Martin J., Bentley, M.J., Tranter, M., Tranter, M, Rose, M, Smith, A.M., Ross, Neil, Smith, Andrew M., Makinson, K, Hodgson, DA, Makinson, Keith, Bentley, Michael, Hodgson, Dominic, Mowlem, M, Rose, M., Pearce, David, Pearce, D, Makinson, K., Siegert, Martin, Smith, AM, Parnell, J., Bentley, MJ   +38 more
core   +1 more source

Towards ice core sampling by subsea robotic vehicles [PDF]

Geoscientific Instrumentation, Methods and Data Systems
Ice coring has developed into one of the most frequently used sampling methods across cryospheric sciences. Sea ice, firn and glacial ice are sampled using a range of different coring systems.
C. Katlein
doaj   +1 more source

Spatial and temporal variability in the snowpack of a High Arctic ice cap: implications for mass-change measurements [PDF]

, 2008
Interpretation of ice mass elevation changes observed by satellite altimetry demands quantification of the proportion of elevation change which is attributable to variations in firn densification.
Bell, Christina, Burgess, David, Mair, Douglas, Demuth, Michael, Sharp, Martin, Demuth M, Bell C, Wadham J, Bingham, Robert, Mair D, Bingham R, Jacka J, Cawkwell, Fiona, Wadham, Jemma, Cawkwell F, Burgess D, Sharp M   +16 more
core   +1 more source

Ices in Starless and Starforming Cores [PDF]

Proceedings of the International Astronomical Union, 2011
AbstractIcy grain mantles are commonly observed through infrared spectroscopy toward dense clouds, cloud cores, protostellar envelopes and protoplanetary disks. Up to 80% of the available oxygen, carbon and nitrogen are found in such ices; the most common ice constituents – H2O, CO2 and CO – are second in abundance only to H2 in many star forming ...
Oberg, Karin I., Boogert, A. C. Adwin, Pontoppidan, Klaus M., Broek, Saskia van den, van Dishoeck, Ewine F., Bottinelli, Sandrine, Blake, Geoffrey A., Evans II, Neal J.   +7 more
openaire   +2 more sources

The Second Deep Ice Coring Project at Dome Fuji, Antarctica [PDF]

Scientific Drilling, 2007
Throughout the history of the polar icecaps, dust and aerosols have been transported through the atmosphere to the poles, to be preserved within the annually freezing ice of the growing ice shields.
Hideaki Motoyama
doaj   +1 more source

Antarctic subglacial drilling rig: Part III. Drilling auxiliaries and environmental measures

Annals of Glaciology, 2021
The Antarctic subglacial drilling rig (ASDR) is designed to recover 105 mm-diameter ice cores up to 1400 m depth and 41.5 mm-diameter bedrock cores up to 2 m in length. In order to ensure safe and convenient drilling, drilling auxiliaries are designed to
Xiaopeng Fan, Pavel Talalay, Youhong Sun, Xingchen Li, Nan Zhang, Alexey Markov, Yang Yang, Pinlu Cao, Rusheng Wang, Yongwen Liu, Yunchen Liu, Ting Wang, Wei Wu, Cheng Yang, Jialin Hong, Da Gong, Han Zhang, Mikhail Sysoev, Xiao Li, An Liu, Yazhou Li   +20 more
doaj   +1 more source

High-resolution aerosol data from the top 3.8 kyr of the East Greenland Ice coring Project (EGRIP) ice core [PDF]

, 2023
International audienceHere we present the high-resolution continuous flow analysis (CFA) data from the top 479 m of the East Greenland Ice coring Project (EGRIP) ice core covering the past 3.8 kyr.
Ogata, Jun, Segato, Delia, Adolphi, Florian, Maffezzoli, Niccoló, Hirabayashi, Motohiro, Darfeuil, Sophie, Mekhaldi, Florian, Jensen, Camilla Marie, Dallmayr, Remi, Scoto, Federico, Paleari, Chiara, Fukuda, Kaori, Burgay, François, Spagnesi, Azzurra, Behrens, Melanie, Kjaer, Helle Astrid, Kjær, Helle Astrid, Crotti, Ilaria, Muscheler, Raimund, Fischer, Hubertus, Twarloh, Birthe, Erhardt, Tobias   +21 more
core   +1 more source

Rapid Access Ice Drill: a new tool for exploration of the deep Antarctic ice sheets and subglacial geology

Journal of Glaciology, 2016
A new Rapid Access Ice Drill (RAID) will penetrate the Antarctic ice sheets in order to create borehole observatories and take cores in deep ice, the glacial bed and bedrock below.
JOHN W. GOODGE, JEFFREY P. SEVERINGHAUS
doaj   +1 more source