Journal ArticleDOI
Contemporary sand wedge development in seasonally frozen ground and paleoenvironmental implications
Stephen A. Wolfe,Peter D. Morse,Christina M. Neudorf,Steven V. Kokelj,Olav B. Lian,H. Brendan O’Neill +5 more
TLDR
In this paper, Sand wedges and sand veins are found to be active in seasonally frozen ground within the extensive discontinuous permafrost zone in Northwest Territories, Canada, where the region has a subarctic continental climate with 291mm/a−1 precipitation, −4.1°C mean annual air temperature, warm summers (July mean 17.0°C), and cold winters (January mean −26.6°C).About:
This article is published in Geomorphology.The article was published on 2018-05-01. It has received 26 citations till now. The article focuses on the topics: Subarctic climate.read more
Citations
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Journal ArticleDOI
Possible (closed system) pingo and ice-wedge/thermokarst complexes at the mid latitudes of Utopia Planitia, Mars
TL;DR: In this article, a suite of candidate closed-system pingos (CSPs) at the mid-latitudes of Utopia Planitia (UP) is described and discussed, and morphologies, scale and height of the Martian mounds, as well as the surface textures and characteristics, landscape features and spatially-associated landforms are consistent with the CSPs observed in ice-rich regions on Earth.
Journal ArticleDOI
Detection of Ice Wedge Cracking in Permafrost Using Miniature Accelerometers
Journal ArticleDOI
The extent of permafrost during the Last Permafrost Maximum (LPM) on the Ordos Plateau, north China
Jef Vandenberghe,Hugh M. French,Hugh M. French,Huijun Jin,Huijun Jin,Xianyan Wang,Shuangwen Yi,Ruixia He +7 more
TL;DR: In this paper, the extent of permafrost and frozen ground in Ordos Plateau in North China has been investigated and two types of sand-wedge structures were recognized: type A wedges extend to depths in excess of 3.0m and are thought to have formed under conditions of continuous permafure.
Journal ArticleDOI
Possible ice-wedge polygonisation in Utopia Planitia, Mars and its latitudinal gradient of distribution
Richard J. Soare,Susan J. Conway,Jean-Pierre Williams,M. Philippe,L. E. Mc Keown,E. Godin,J. Hawkswell +6 more
TL;DR: In this article, the authors show that the Utopia Planitia terrain of Mars exhibits a statistically significant and positive correlation between the ratio of low-centred to high-centered polygons (lcps vs hcps) and a poleward latitude of distribution.
Journal ArticleDOI
Large equatorial seasonal cycle during Marinoan snowball Earth
TL;DR: Through numerical simulations, it is shown that the equatorial seasonal cycle could reach >30°C at various continental locations if the oceans are completely frozen over, as would have been the case for a snowball Earth, or could reach ~20°C if the seas are not completely frozenOver, asWould have beenTheoretical calculations show that the deep sand wedges form readily in a snowballEarth while hardly form in a waterbelt Earth.
References
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Climate change 2007: the physical science basis
Susan Solomon,Dahe Qin,Martin R. Manning,Melinda Marquis,Kristen Averyt,Melinda M.B. Tignor,H. L. Miller,Z. Chen +7 more
TL;DR: The first volume of the IPCC's Fourth Assessment Report as mentioned in this paper was published in 2007 and covers several topics including the extensive range of observations now available for the atmosphere and surface, changes in sea level, assesses the paleoclimatic perspective, climate change causes both natural and anthropogenic, and climate models for projections of global climate.
Journal ArticleDOI
IntCal13 and Marine13 radiocarbon age calibration curves 0-50,000 years cal BP
Paula J. Reimer,Edouard Bard,Alex Bayliss,J. Warren Beck,Paula G Blackwell,Christopher Bronk Ramsey,Caitlin E. Buck,Hai Cheng,R. Lawrence Edwards,Michael Friedrich,Pieter Meiert Grootes,Thomas P. Guilderson,Haflidi Haflidason,Irka Hajdas,Christine Hatté,Timothy J Heaton,Dirk L. Hoffmann,Alan G. Hogg,Konrad A Hughen,K Felix Kaiser,Bernd Kromer,Sturt W. Manning,Mu Niu,Ron W Reimer,David Richards,E. Marian Scott,John Southon,Richard A. Staff,Christian Turney,Johannes van der Plicht +29 more
TL;DR: In this paper, Heaton, AG Hogg, KA Hughen, KF Kaiser, B Kromer, SW Manning, RW Reimer, DA Richards, JR Southon, S Talamo, CSM Turney, J van der Plicht, CE Weyhenmeyer
Climate Change 2013: The Physical Science Basis
Reinhard F. Stocker,Dahe Qin,Gian-Kasper Plattner,Melinda Tignor,S. D. Allen,J. Boschung,T Stocker,Gian-Kasper Plattner,Simon K. Allen,Alexander Nauels,Yu Xia,V. Bex,Pauline M. Midgley,Matthew Collins,Reto Knutti,Julie M. Arblaster,Jean-Louis Dufresne,Thierry Fichefet,Pierre Friedlingstein,Michael Wehner,Thomas F. Stocker,S. James Allen,P. M. Midgley,F. M. Midgley,TF Stocker,Stefan Allen,SG Allen +26 more
TL;DR: In this paper, a summary of issues to assist policymakers, a technical summary, and a list of frequently-asked questions are presented, with an emphasis on physical science issues.
Journal ArticleDOI
Bayesian analysis of radiocarbon dates
TL;DR: An overview of the main model components used in chronological analysis, their mathematical formulation, and examples of how such analyses can be performed using the latest version of the OxCal software (v4) are given.
Journal Article
IntCal13とMarine13放射性炭素年代較正曲線0-50,000年cal BP
Reimer Paula J,Bard Edouard,Bayliss Alex,Beck J Warren,Blackwell Paul G,Ramsey Christopher Bronk,Buck Caitlin E,Cheng Hai,Edwards R Lawrence,Friedrich Michael,Grootes Pieter M,Guilderson Thomas P,Haflidason Haflidi,Hajdas Irka,Hatte Christine,Heaton Timothy J,L Hoffmann Dirk,Hogg Alan G,Hughen Konrad A,Kaiser K Felix,Kromer Bernd,Manning Sturt W,Niu Mu,Reimer Ron W,Richards David A,Scott E Marian,Southon John R,Staff Richard A,Turney Christian S M,Van Der Plicht Johannes +29 more