Results 21 to 30 of about 481,486 (293)

The future of ice coring: International Partnerships in Ice Core Sciences (IPICS) [PDF]

PAGES news, 2006
Ice cores provide information about past climate and environmental conditions on timescales from decades to hundreds of millennia, and direct records of the composition of the atmosphere. As such, they are cornerstones of global change research. For example, ice cores play a central role in showing how closely climate and greenhouse gas concentrations ...
Brook, Edward J., Wolff, Eric W., Dahl-Jensen, Dorthe, Fischer, Hubertus, Steig, Eric J.   +4 more
  +7 more sources

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

Construction on a new deep ice coring site at Dome Fuji Station -Operations carried out by the JARE-44 Dome Fuji overwintering team-

Antarctic Record, 2005
Eight members of the 44th Japanese Antarctic Research Expedition (JARE-44) stayed at Dome Fuji Station (77°19′01″S, 39°42′11″E; 3810 m a.s.l.; ice thickness 3028±15 m; mean air temperature -54.4°C; lowest air temperature -79.7°C) from January 19, 2003 to
Takao Kameda, Ichio Obinata, Kyo Takahashi, Kenji Taniguchi, Okimasa Sugita, Koji Fujita, Takashi Kurisaki, Kei Nakano   +7 more
doaj   +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

Sea-ice protist (including ice algae) abundance and biodiversity data from ice coring at the main coring sites (MCS_FYI and MCS_SYI) and ridges during MOSAiC legs 2 to 4 in 2019/2020

, 2023
The data has been collected during the expedition "Multidisciplinary drifting Observatory for the Study of Arctic Climate" (MOSAiC) from September 2019 to September 2020 on research vessel Polarstern.
Granskog, Mats A, Olsen, Lasse Mørk, Dąbrowska, Anna Maria, Gradinger, Rolf, Lange, Benjamin Allen, Tatarek, Agnieszka, Assmy, Philipp, Rozanska, Magdalena, Hoppe, Clara Jule Marie, Gardner, Jessie, Müller, Oliver, Divine, Dmitry V, Wiktor, Jozef M, Salganik, Evgenii   +13 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

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

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

Where to find 1.5 million yr old ice for the IPICS "Oldest-Ice" ice core [PDF]

Climate of the Past, 2013
The recovery of a 1.5 million yr long ice core from Antarctica represents a keystone of our understanding of Quaternary climate, the progression of glaciation over this time period and the role of greenhouse gas cycles in this progression. Here we tackle
H. Fischer, J. Severinghaus, E. Brook, E. Wolff, M. Albert, O. Alemany, R. Arthern, C. Bentley, D. Blankenship, J. Chappellaz, T. Creyts, D. Dahl-Jensen, M. Dinn, M. Frezzotti, S. Fujita, H. Gallee, R. Hindmarsh, D. Hudspeth, G. Jugie, K. Kawamura, V. Lipenkov, H. Miller, R. Mulvaney, F. Parrenin, F. Pattyn, C. Ritz, J. Schwander, D. Steinhage, T. van Ommen, F. Wilhelms   +29 more
doaj   +1 more source

New synthetic fiber armored cable for freezing-in thermal ice probes

Annals of Glaciology, 2021
A series of new synthetic armored cables were developed and tested to ensure that they were suitable for use with the RECoverable Autonomous Sonde (RECAS), which is a newly designed freezing-in thermal ice probe.
Nan Zhang, Hui Liu, Pavel Talalay, Youhong Sun, Na Li, Xiaopeng Fan, Bing Li, Da Gong, Jialin Hong, Ting Wang, An Liu, Yazhou Li, Yunchen Liu, Rusheng Wang, Yang Yang, Liang Wang   +15 more
doaj   +1 more source