Results 21 to 30 of about 3,045,189 (293)

The Ice-Rich Permafrost Sequences as a Paleoenvironmental Archive for the Kara Sea Region (Western Arctic)

Frontiers in Earth Science, 2021
The Kara Sea coast and part of the shelf are characterized by wide presence of the ice-rich permafrost sequences containing massive tabular ground ice (MTGI) and ice wedges (IW).
I. D. Streletskaya, A. A. Pismeniuk, A. A. Pismeniuk, A. A. Vasiliev, A. A. Vasiliev, E. A. Gusev, G. E. Oblogov, G. E. Oblogov, N. A. Zadorozhnaya   +8 more
doaj   +1 more source

Variation in bacterial composition, diversity, and activity across different subglacial basal ice types [PDF]

The Cryosphere, 2022
Glaciers and ice sheets possess basal ice layers characterized by high amounts of entrained debris that can serve as sources of nutrients and organic matter, providing a habitat for microorganisms adapted to the frozen conditions. Basal ice forms through
S. M. Doyle, B. C. Christner
doaj   +1 more source

REGULARITIES OF GEOCHEMICAL COMPOSITION FORMATION OFUNDERGROUND ICE AND DEPOSITS ON THE NORTH OF THE GYDAN PENINSULA

Известия высших учебных заведений: Нефть и газ, 2018
The study of underground ice and frozen soils on the north of the Gydan Peninsula was made in 2016. The article is devoted to the results of the study. The granulometric and geochemical composition of the frozen deposits, the hydrochemical composition of
V. I. Butakov, Ya. V. Tikhonravova, E. A. Slagoda   +2 more
doaj   +1 more source

Sympagic Fauna in and Under Arctic Pack Ice in the Annual Sea-Ice System of the New Arctic

Frontiers in Marine Science, 2020
A strong decline and thinning of the Arctic sea-ice cover over the past five decades has been documented. The former multiyear sea-ice system has largely changed to an annual system and with it the dynamics of sea-ice transport across the Arctic Ocean ...
Julia Ehrlich, Julia Ehrlich, Fokje L. Schaafsma, Bodil A. Bluhm, Ilka Peeken, Giulia Castellani, Angelika Brandt, Angelika Brandt, Hauke Flores   +8 more
doaj   +1 more source

Geochemical Features of Ground Ice from the Faddeevsky Peninsula Eastern Coast (Kotelny Island, East Siberian Arctic) as a Key to Understand Paleoenvironmental Conditions of Its Formation

Land, 2023
Understanding paleoenvironmental conditions of the permafrost formation allows us to estimate the permafrost carbon pool and its behavior upon thawing in a changing climate.
Anfisa Pismeniuk, Petr Semenov, Alexandra Veremeeva, Wei He, Anna Kozachek, Sergei Malyshev, Elizaveta Shatrova, Anastasiia Lodochnikova, Irina Streletskaya   +8 more
doaj   +1 more source

Greenland ice core evidence of the 79 AD Vesuvius eruption [PDF]

Climate of the Past, 2013
Volcanic tephra are independent age horizons and can synchronize strata of various paleoclimate records including ice and sediment cores. The Holocene section of the Greenland Ice Core Project (GRIP) ice core is dated by multi-parameter annual layer ...
C. Barbante, N. M. Kehrwald, P. Marianelli, B. M. Vinther, J. P. Steffensen, G. Cozzi, C. U. Hammer, H. B. Clausen, M.-L. Siggaard-Andersen   +8 more
doaj   +1 more source

Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect [PDF]

, 2006
Zobrist B, Marcolli C, Koop T, et al. Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect. ATMOSPHERIC CHEMISTRY AND PHYSICS.
Koop, Thomas, Cziczo, Daniel J., Corti, Thierry, Murphy, D. M., Fueglistaler, Stephan, B. Zobrist, P. K. Hudson, Koop, T., Hudson, P.K., Koop, Thomas ; https://orcid.org/, Krieger, U. K., Corti, T., Lohmann, Ulrike, Thomson, D. S., U. K. Krieger, Marcolli, C., D. S. Thomson, D. J. Cziczo, T. Corti, T. Peter, U. Lohmann, Lohmann, U., Peter, Thomas, T. Koop, Luo, Beiping P., Murphy, Daniel M., A. A. Zardini, Krieger, Ulrich; id_orcid, Luo, B. P., Hudson, P. K., Thomson, D.S., B. P. Luo, Zardini, A., Cziczo, D. J., Zardini, A. A., Zardini, Alessandro A., D. M. Murphy, C. Marcolli, S. Fueglistaler, Peter, T., Marcolli, Claudia, Zobrist, Bernhard, Zobrist, B., Fueglistaler, S.   +43 more
core   +2 more sources

Sea level fluctuations and their signature in the composition and structure of polygonal wedge ice in the Yenisei River lower reaches

Лëд и снег, 2015
Late Pleistocene and Holocene polygonal-wedge ice is studied in the lower course of the Yenisei River. Ice distribution, features of the formation, chemical and microbiological composition were determined.
O. L. Opokina, E. A. Slagoda, I. B. Tomberg, M. Yu. Suslova, A. D. Firsova, T. V. Khodzher, N. A. Zhuchenko   +6 more
doaj   +1 more source

Atmospheric ice nuclei in the Eyjafjallajökull volcanic ash plume [PDF]

, 2011
Explosive volcanism affects weather and climate. Primary volcanic ash particles which act as ice nuclei (IN) can modify the phase and properties of cold tropospheric clouds.
B. Nillius, T. Herrmann, Levin, Zev, Curtius, Joachim, Nillius, Björn, M. Ebert, Bingemer, Heinz, S. Weinbruch, Haunold, Werner, Weber, A., H. Klein, Klein, Holger, Bundke, Ulrich, Weinbruch, Stephan, A. Wéber, Z. Levin, W. Haunold, D. Müller-Ebert, J. Curtius, K. Ardon-Dryer, Ebert, Martin, Judt, Anna, U. Bundke, Ardon-Dryer, Karin, H. Bingemer, A. Judt, Kandler, Konrad, Herrmann, Thomas, K. Kandler, Müller-Ebert, Dörthe   +29 more
core   +2 more sources

Sea ice meiofauna distribution on local to pan‐Arctic scales

Ecology and Evolution, 2018
Arctic sea ice provides microhabitats for biota that inhabit the liquid‐filled network of brine channels and the ice–water interface. We used meta‐analysis of 23 published and unpublished datasets comprising 721 ice cores to synthesize the variability in
Bodil A. Bluhm, Haakon Hop, Mikko Vihtakari, Rolf Gradinger, Katrin Iken, Igor A. Melnikov, Janne E. Søreide   +6 more
doaj   +1 more source