样式: 排序: IF: - GO 导出 标记为已读
-
Combined optically stimulated luminescence and radiocarbon dating of aeolian dunes in Arctic Sweden Permafr. Periglac. Process. (IF 5.0) Pub Date : 2024-03-16 Salome Oehler, Thomas Stevens, Thomas Kolb, Göran Possnert, Markus Fuchs
Multiple parabolic sand dune fields formed in Arctic Sweden after the last deglaciation, facilitated by an abundance of loose glaciofluvial sediment, limited vegetation cover and strong winds. Following initial stabilisation, these dunes underwent repeated reworking after fire events, as evidenced by the presence of buried soils, charcoal layers and redeposited sands in the dune stratigraphy. These
-
Characterization of a Deglaciated Sediment Chronosequence in the High Arctic Using Near‐Surface Geoelectrical Monitoring Methods Permafr. Periglac. Process. (IF 5.0) Pub Date : 2024-03-14 Mihai O. Cimpoiasu, Oliver Kuras, Harry Harrison, Paul B. Wilkinson, Philip Meldrum, Jonathan E. Chambers, Dane Liljestrand, Carlos Oroza, Steven K. Schmidt, Pacifica Sommers, Trevor P. Irons, James A. Bradley
Accelerated climate warming is causing significant reductions in the volume of Arctic glaciers, such that previously ice‐capped bare ground is uncovered, harboring soil development. Monitoring the thermal and hydrologic characteristics of soils, which strongly affect microbial activity, is important to understand the evolution of emerging terrestrial landscapes. We instrumented two sites on the forefield
-
Spatiotemporal characteristics and variability in the thermal state of permafrost on the Qinghai–Tibet Plateau Permafr. Periglac. Process. (IF 5.0) Pub Date : 2024-02-28 Hu Guojie, Zhao Lin, Sun Zhe, Zou Defu, Xiao Yao, Liu Guangyue, Du Erji, Wang Chong, Wang Yuanwei, Wu Xiaodong, Wang Lingxiao, Zhao Yonghua
Permafrost degradation on the Qinghai–Tibet Plateau (QTP) has significant impacts on climate, hydrology, and engineering and environmental systems. To understand the temporal and spatial characteristics of permafrost on the QTP, we quantified the variation in active layer thickness (ALT), permafrost thermal state, and future permafrost change under different scenarios using observational data, reanalysis
-
Advances in retrogressive thaw slump research in permafrost regions Permafr. Periglac. Process. (IF 5.0) Pub Date : 2024-02-27 Yuan Li, Youqian Liu, Ji Chen, Haiming Dang, Shouhong Zhang, Qihang Mei, Jingyi Zhao, Jinchang Wang, Tianchun Dong, Yaojun Zhao
A retrogressive thaw slump (RTS) is a slope failure formed by slope thaw settlement and retrogressive slump following the thawing of ice‐rich permafrost or the melting of massive ice. Here, we review recent literature on RTSs, one of the main geomorphological landscapes developed in the process of permafrost degradation. The main topics are as follows: development and temporal evolution, mechanisms
-
The trajectory of contemporary cryoplanation literature: A bibliometric assessment Permafr. Periglac. Process. (IF 5.0) Pub Date : 2024-02-01 Kelsey E. Nyland, Frederick E. Nelson, Devin Higgins
The origin of cryoplanation landforms has long been a subject of controversy in the literature on periglacial geomorphology. Multiple hypotheses have been advanced over the past century, but by the early 1970s only two had survived: geological structure and climate-driven nivation processes. To determine whether some publications may be playing a “gate-keeping” role through selective citation, we conducted
-
Pore-scale freezing of a sandy saline soil visualized with micro-computed tomography Permafr. Periglac. Process. (IF 5.0) Pub Date : 2024-01-30 Xiangbo Gao, Rongrong Tian, Tingchang Yin, Sergio Andres Galindo Torres, Liang Lei
Sandy saline soils are widely distributed and commonly experience seasonal or long-term freezing, yet the freezing process in these soils is rarely studied. This research utilized in situ X-ray computed tomography (CT) to visualize pore-scale freezing processes in sandy saline soils under various initial water and salt contents. Micron-resolution observations of pore ice and unfrozen water produced
-
The geolocation of features on information surfaces and the use of the open and FAIR data principles in the mountain landscape domain and geoheritage Permafr. Periglac. Process. (IF 5.0) Pub Date : 2024-01-25 W. Brian Whalley
This note suggests that decimal latitude/longitude [dLL] locations should be used to identify features of interest, landforms, sample and investigations sites, in an ‘information landscape’ provided by the geomorphological literature. All the information associated with a labelled, or tagged, geolocation should be available for examination as part of information landscapes that can be explored and
-
Issue Information Permafr. Periglac. Process. (IF 5.0) Pub Date : 2024-01-14
No abstract is available for this article.
-
Talus and its cooling effects on the thermal regime of permafrost: A review Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-12-13 Shengtao Lan, Bin Cao, Yan Hu, Ziyong Sun, Rui Ma, Xin Li
Talus, as the product of movement and accumulation along the slope after the cracking of cliffs or steep rock walls, is a common landform in the mountain periglacial environment. Significant thermal anomalies within talus have been widely reported to be a result of cooling effects. During the cold season, the increased temperature difference between talus and the ambient environment strengthens the
-
Formation of the Siberian Yamal gas emission crater via accumulation and explosive release of gas within permafrost Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-11-29 Lauren R. Schurmeier, Gwendolyn E. Brouwer, Sarah A. Fagents
The Arctic landscape has experienced many dramatic forms of change due to anthropogenic warming. Large crater-like forms surrounded by fragmented blocks scattered outward to great distances with precursor mounds appeared in the continuous permafrost zone of the Yamal and Gydan peninsulas of Western Siberia. The morphologies of these craters, in addition to the abundant evidence of active and intense
-
Main results of permafrost monitoring in the French Alps through the PermaFrance network over the period 2010–2022 Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-11-21 Florence Magnin, Ludovic Ravanel, Xavier Bodin, Philip Deline, Emmanuel Malet, Jean-Michel Krysiecki, Philippe Schoeneich
This study presents data from the first years of permafrost monitoring in boreholes in the French Alps that started at the end of 2009 in the framework of the PermaFrance network. Nine boreholes are instrumented, among which six monitored permafrost temperature and active layer thickness (ALT) over >10 years. Ice-poor and cold permafrost in high-elevation north-facing rock walls has warmed by up to
-
Lithological controls on soil properties, Snow Island, Maritime Antarctica Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-11-20 Davi do Vale Lopes, Fábio Soares de Oliveira, João Santiago Reis, Carlos Ernesto G. R. Schaefer
Soil–parent material is a critical controlling factor of soil properties in the Antarctic region due to a limited degree of soil development. However, the degree to which soil–parent material can be considered the major controlling factor in pedogenesis and subsequent soil physical and chemical properties in Antarctica should be better understood to improve soil mapping and interpretations. The present
-
Topographical effect of high embankments on resistivity investigation of the underlying permafrost table Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-10-25 Yanhui You, Xicai Pan, Wei Fu, Yun Wang, Qihao Yu, Lei Guo, Xinbin Wang
Investigation of resistivity has been effectively used in assessing the risks of embankmentation and failure. A two-dimensional (2D) approximation of the surveyed object is commonly assumed for a survey line on the road surface. However, this approximation may not be met when resistivity investigations are conducted over a raised high embankment; under these conditions, regular inversions might yield
-
Issue Information Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-10-19
No abstract is available for this article.
-
Best practices for using electrical resistivity tomography to investigate permafrost Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-10-15 Teddi Herring, Antoni G. Lewkowicz, Christian Hauck, Christin Hilbich, Coline Mollaret, Greg A. Oldenborger, Sebastian Uhlemann, Mohammad Farzamian, Fabrice Calmels, Riccardo Scandroglio
Electrical resistivity tomography (ERT) is a minimally invasive geophysical method that produces a model of subsurface resistivity from a large number of electrical resistance measurements. Strong resistivity contrasts usually exist between frozen and unfrozen earth materials, making ERT an effective and increasingly utilized tool in permafrost research. In this paper, we review more than 300 scientific
-
Disparate permafrost terrain changes after a large flood observed from space Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-09-27 Simon Zwieback, Mark McClernan, Mikhail Kanevskiy, Mark T. Jorgenson, Donald A. Walker, Qianyu Chang, Helena Bergstedt, Horacio Toniolo, Vladimir E. Romanovsky, Franz J. Meyer
The 2015 spring flood of the Sagavanirktok River inundated large swaths of tundra as well as infrastructure near Prudhoe Bay, Alaska. Its lasting impact on permafrost, vegetation, and hydrology is unknown but compels attention in light of changing Arctic flood regimes. We combined InSAR and optical satellite observations to quantify subdecadal permafrost terrain changes and identify their controls
-
Carbon-cycling microorganisms in permafrost and their responses to a warming climate: A review Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-09-24 Sizhong Yang, Xi Wen, Tonghua Wu, Xiaodong Wu, Xiaoming Wang, Xiaoying Jin, Xiaoying Li, Xue Yang, Ling Yang, Hongwei Wang
Global climate warming is accelerating permafrost degradation. The large amounts of soil organic matter in permafrost-affected soils are prone to increased microbial decomposition in a warming climate. Along with permafrost degradation, changes to the soil microbiome play a crucial role in enhancing our understanding and in predicting the feedback of permafrost carbon. In this article, we review the
-
The summer heatwave in 2022 and its role in changing permafrost and periglacial conditions at a historic mountain pass in the Eastern Alps (Hochtor, Hohe Tauern Range, Austria) Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-08-26 Andreas Kellerer-Pirklbauer, Julia Eulenstein
Air temperatures in Europe in 2022 had been the highest on record for the meteorological summer season [June, July and August (JJA)], with +1.3°C above the 1991–2020 average. We studied the effects of recent warming on permafrost and periglacial conditions at a historical mountain pass in the Eastern Alps (Hochtor, 2,576 m asl, 47.08°N, 12.84°E). We used ground temperature data (2010–2022), repeated
-
Stochastic representation of spatial variability in thaw depth in permafrost boreal forests Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-08-10 Taro Nakai, Tetsuya Hiyama, Ayumi Kotani, Yoshihiro Iijima, Takeshi Ohta, Trofim C. Maximov
A simple stochastic representation of the spatial variability in thaw depth is proposed. Thaw depth distribution measured in the two larch-type forests in eastern Siberia, Spasskaya Pad and Elgeeii, showed different spatial, seasonal, and interannual variability, respectively. Year-to-year variation in active-layer thickness was minor in Spasskaya Pad compared to Elgeeii. A gamma distribution adequately
-
Quantification of freeze–thaw hysteresis of unfrozen water content and electrical resistivity from time lapse measurements in the active layer and permafrost Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-07-25 Soňa Tomaškovičová, Thomas Ingeman-Nielsen
We quantified seasonal, in-situ variation in ground electrical resistivity, unfrozen water content, and ground temperature using daily and sub-daily measurements in active layer and in permafrost on a high-latitude monitoring site in West Greenland. The in-situ unfrozen water content in a clayey soil undergoing phase change was 10% higher during freezing than during thawing at the same ground temperature
-
Fine-scale environment control on ground surface temperature and thaw depth in a High Arctic tundra landscape Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-07-22 Hadi Mohammadzadeh Khani, Christophe Kinnard, Simon Gascoin, Esther Lévesque
Surface conditions are known to mediate the impacts of climate warming on permafrost. This calls for a better understanding of the environmental conditions that control the thermal regime and the depth of the active layer, especially within heterogeneous tundra landscapes. This study analyzed the spatial relationships between thaw depths, ground surface temperature (GST), and environmental conditions
-
Issue Information Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-07-19
No abstract is available for this article.
-
Mechanism of strength degradation of frozen soil–rock mixture under temperature rise-induced particle ice film ablation Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-07-17 Liyun Tang, Zihan Lu, Juanjuan Zheng, Jianguo Zheng, Long Jin, Yongtang Yu, Hailiang Jia, Qiang Sun, Di Wu, Gang Li
The mesoscale effect of climate change and engineering activities on a superficial frozen soil–rock mixture (FSRM) in regions is complex. The decrease in strength caused by particle ice film ablation under temperature rise has various effects, such as upper subgrade settlement deformation. However, the internal mechanism of FSRM strength degradation remains unclear. Triaxial and nuclear magnetic resonance
-
Topography and canopy cover influence soil organic carbon composition and distribution across a forested hillslope in the discontinuous permafrost zone Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-07-11 Erin C. Rooney, Vanessa L. Bailey, Kaizad F. Patel, Alexander Kholodov, Holly Golightly, Rebecca A. Lybrand
Topography and canopy cover influence ground temperature in warming permafrost landscapes, yet soil temperature heterogeneity introduced by mesotopographic slope positions, microtopographic differences in vegetation cover, and the subsequent impact of contrasting temperature conditions on soil organic carbon (SOC) dynamics are understudied. Buffering of permafrost-affected soils against warming air
-
Climate change records in coversand deposits from the eastern margin of the Tarnów Plateau (southeast Poland) Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-07-07 Tadeusz Sokołowski, Barbara Woronko, Dorota Chmielowska-Michalak
Coversands (CSs) are one of the most distinctive sediments within the European Sand Belt. Their extraordinary thickness, exceeding 6 m, was recorded at the Góra Motyczna site located at the edge of the Wisłoka River valley in the Tarnów Plateau (southeast Poland). The sedimentary record of the studied CSs sets their arrangement into one of two sedimentary cycles. Each consists of sandy (A1 and A2)
-
Batagay megaslump: A review of the permafrost deposits, Quaternary environmental history, and recent development Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-05-30 Julian Murton, Thomas Opel, Sebastian Wetterich, Kseniia Ashastina, Grigoriy Savvinov, Petr Danilov, Vasily Boeskorov
The Batagay megaslump, in the Yana Uplands of northern Yakutia, Russia, is the largest known retrogressive thaw slump in the world. The slump exposes a remarkable sequence of Ice Age permafrost deposits that record the interaction of colluvial, eolian and periglacial processes on a hillslope episodically forested during the last 650 ka or more in response to climate variability on glacial–interglacial
-
Little tools, big job: The periglacial conveyor system in cryoplanated uplands Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-05-21 Raven J. Mitchell, Frederick E. Nelson, Kelsey E. Nyland
The mechanisms of sediment removal associated with the nivation process suite are underinvestigated, a situation that hinders development of a unified, coherent theory of cryoplanation terrace formation. This study links sorted stripes—a type of periglacial patterned ground frequently encountered on cryoplanation terrace treads—to active hydrologic networks capable of transporting large quantities
-
Biogeochemistry of low- and high-centered ice-wedge polygons in wetlands in Svalbard Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-05-08 Eleanor L. Jones, Andrew J. Hodson, Kelly R. Redeker, Hanne H. Christiansen, Steve F. Thornton, Jade Rogers
Arctic wetlands are a globally significant store of soil organic carbon. They are often characterized by ice-wedge polygons, which are diagnostic of lowland permafrost, and which greatly influence wetland hydrology and biogeochemistry during summer. The degradation of ice-wedge polygons, which can occur in response to climate change or local disturbance, has poorly understood consequences for biogeochemical
-
Thermal simulations on periglacial soils of the Central Andes, Argentina Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-05-08 Martín Mendoza López, Carla Tapia Baldis, Dario Trombotto Liaudat, Noelia Sileo
Rock glaciers are the most common landforms of the Andean periglacial landscape in the Central Andes of San Juan, Argentina. Their active layer is gravelly with a typical openwork structure. The upper parts of these rock glaciers are coarse-grained Turbic Cryosols, with no vegetation cover. Since March 2018, coarse soils in the active layer of the “Candidato” rock glacier have been monitored (31.9°S
-
The soil–cryogenic complex: Evidence of late Pleistocene–Holocene coevolution of permafrost and cryosols at the Kolyma Lowland Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-05-06 Alexey Lupachev, Stanislav Gubin
One of the most important problems of cryopedology is the interaction of pedogenic processes with the processes that form the structure of the uppermost layers of the near-surface permafrost. The thickness, structure, spatial variability, and other features are responsible for the reaction of the soil-permafrost system to the bioclimatic fluctuations as well as the contemporary anthropogenic pressure
-
Characterization and mapping of MIS-2 thermal contraction crack polygons in Western Transdanubia, Hungary Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-04-26 Beáta Farkas, György Sipos, Tamás Bartyik, Edina Józsa, Szabolcs Czigány, Richárd Balogh, Gábor Varga, János Kovács, Szabolcs Ákos Fábián
The Pannonian Basin was located in the southernmost, disputed limit of permafrost during the Last Glacial Maximum (LGM). In the western part of the basin, over an area of 1,200 km2, more than 150 sites with polygonal patterned ground were surveyed, and 72 sediment samples from forms identified as relict sand wedges were collected. Ten optically stimulated luminescence ages were obtained from the infills
-
Issue Information Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-04-18
No abstract is available for this article.
-
Hillslope erosional features and permafrost dynamics along infrastructure in the Arctic Foothills, Alaska Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-04-18 Eva Stephani, Margaret M. Darrow, Mikhail Kanevskiy, Frank Wuttig, Ronald P. Daanen, Jaimy A. Schwarber, Guy Doré, Yuri Shur, Mark T. Jorgenson, Peppi Croft, Jeremiah S. Drage
Abrupt thaw of ice-rich permafrost in the Arctic Foothills yielded to the formation of hillslope erosional features. In the infrastructure corridor, we observed thermal erosion and thaw slumping that self-healed near an embankment. To advance our understanding of processes between infrastructure and hillslope erosional features (INF-HEF), we combined climate and remote sensing analyses to field investigations
-
Hotspots and trends in frozen soils research in 2010–2019 Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-04-03 Wenhao Liu, Ren Li, Xiaoqian Shi, Tonghua Wu, Xiao Dong Wu
In the context of climate change, research on frozen soils has attracted much attention in recent years, and numerous research papers have been published on these topics in the last decade. However, the present status and developmental trends in frozen soils research have not been reported systematically. Herein, a bibliometric analysis was conducted using 7,108 research papers on frozen soils published
-
Ion geochemistry of a coastal ice wedge in northwestern Canada: Contributions from marine aerosols and implications for ice-wedge paleoclimate interpretations Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-03-29 Kira M. Holland, Trevor J. Porter, Alison S. Criscitiello, Duane G. Froese
Ice wedges are a characteristic ground ice feature in permafrost regions that form primarily from the meltwater of the seasonal snowpack. Ice-wedge oxygen and hydrogen stable isotopes have been used in winter paleotemperature reconstructions; however, until recently, the ion geochemistry of ice wedges has rarely been analyzed as a potential paleoclimate proxy. This potential is greatest for ice wedges
-
Yedoma sediments with gravel and rock debris inclusions: Characteristics and origin Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-03-28 Yurij K. Vasil'chuk
Yedoma ice complex sediments with large syngenetic ice wedges (IW) are usually observed in outcrops in river valleys on permafrost plains and on sea coasts and lake shores in the north of Siberia, Alaska, and Canada. Less frequently, they occur in mountainous and foothill regions of East Siberia, for example, in the Upper Kolyma Upland and in river valleys of the Eastern Sayan Range and the Anabar
-
Sensitivity of simulated frozen ground temperatures to different solar radiation and air temperature products—a case study in the Qilian Mountains in West China Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-03-27 Yanlin Zhang, Xin Li, Xiaoli Chang, Huijun Jin, Anning Huang, Ji Liang, Guodong Cheng, Xin Wang
Downward solar radiation (DSR) and air temperature (Ta) have significant influences on the thermal state of frozen ground. These parameters are also important forcing terms for physically based land surface models (LSMs). However, the quantitative influences of inaccuracies in DSR and Ta products on simulated frozen ground temperatures remain unclear. In this study, three DSR products (CMFD-SR, Tang-SR
-
Last Glacial Maximum cryogenic calcite deposits in an alluvial fan at Villetoureix, southwest France Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-03-20 Pascal Bertran, Isabelle Couchoud, Karine Charlier, Christine Hatté, Yannick Lefrais, Nicole Limondin-Lozouet, Alain Queffelec
The origin of white calcite silts forming 0.5 to 3-cm-thick lenses in alluvial fan deposits 14C-dated to the Last Glacial Maximum in the Dronne Valley (Dordogne, southwest France) is investigated using microscopic imagery, chemistry, and O and C stable isotopes. The calcite silts, composed mainly of aggregates of 3–5-μm euhedral crystals, do not resemble secondary precipitations of pedological origin
-
Microbial response to warming and cellulose addition in a maritime Antarctic soil Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-03-20 Paulina Pradel, León A. Bravo, Carolina Merino, Nicole Trefault, Rodrigo Rodríguez, Heike Knicker, Claudia Jara, Giovanni Larama, Francisco Matus
Maritime Antarctic King George Island (South Shetland Islands) has experienced rapid warming in recent decades, but the impacts on soil organic matter (SOM) decomposition remain ambiguous. Most vegetation cover is dominated by bryophytes (mosses), whereas a few vascular plants, such as Deschampsia antarctica and Colobanthus quitensis grow interspersed. Therefore, SOM is mainly enriched with carbohydrates
-
Ice wedge polygon stability on steep slopes in West Greenland related to temperature and moisture dynamics of the active layer Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-03-13 Katharina Schwarzkopf, Steffen Seitz, Michael Fritz, Thomas Scholten, Peter Kühn
Ice wedge polygons on steep slopes have generally been described as being covered by periglacial sediments and, typically, the active layer on slopes becomes mobile during thaw periods, which can lead to solifluction. In West Greenland close to the ice margin, however, the active layer and ice wedge polygons are stable despite their occurrence on steep slopes with inclinations of ≥30°. We conducted
-
Cover Image Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-01-15 Lingxiao Wang, Lin Zhao, Huayun Zhou, Shibo Liu, Guojie Hu, Zhibin Li, Chong Wang, Jianting Zhao
-
Issue Information Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-01-15
No abstract is available for this article.
-
Factors influencing the development of microtextures on cold-climate aeolian quartz grains revealed by experimental frost action Permafr. Periglac. Process. (IF 5.0) Pub Date : 2023-01-17 Martyna E. Górska, Barbara Woronko, Tomasz M. Kossowski
Aeolian-originated quartz grains of coarse-sand size (0.5–1 mm) were subjected to experimental frost weathering. A total of 1,000 freeze–thaw cycles with temperature ranges from −5 to +10°C were simulated under full water availability conditions. Scanning electron microscope microtextural analysis of grain surfaces conducted after 0, 50, 100, 300, 700, and 1,000 freeze–thaw cycles resulted in different-sized
-
Holocene January paleotemperature of northwestern Siberia reconstructed based on stable isotope ratio of ice wedges Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-12-22 Yurij K. Vasil'chuk, Alla C. Vasil'chuk, Nadine A. Budantseva
Ice wedges are considered as a paleoarchive of winter air temperatures as their stable isotope composition has been widely used to reconstruct winter climatic conditions in the Arctic regions. Ice wedge stable isotope records, obtained in recent decades for many Arctic permafrost areas of Russia and North America, demonstrate a clear shift from lower to higher values between the Late Pleistocene and
-
Combination of historical and modern data to decipher the geomorphic evolution of the Innere Ölgruben rock glacier, Kaunertal, Austria, over almost a century (1922–2021) Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-12-18 Fabian Fleischer, Florian Haas, Moritz Altmann, Jakob Rom, Bettina Knoflach, Michael Becht
Rock glaciers are cryo-conditioned downslope-creeping landforms in high mountains. Their dynamics are changing due to external factors influenced by climate change. Although there has been a growing scientific interest in mountain permafrost and thus in rock glaciers in recent years, their historical development, especially before the first alpine-wide aerial image flights in the 1950s, has hardly
-
Origin of CO2, CH4, and N2O trapped in ice wedges in central Yakutia and their relationship Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-11-13 Ji-Woong Yang, Jinho Ahn, Go Iwahana, Nayeon Ko, Ji-Hoon Kim, Kyungmin Kim, Alexander Fedorov, Sangyoung Han
Permafrost thawing as a result of global warming is expected to foster the biological remineralization of intact organic carbon and nitrogen and release greenhouse gas (GHG) into the atmosphere, which will have positive feedback for future global warming. However, GHG budgets and their controls in permafrost ground ice are not yet fully understood. This study aims to better understand the control mechanisms
-
Seasonally distinct runoff–recharge partitioning in an alpine tundra catchment Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-11-13 Geoffrey G. L. Kershaw, Michael C. English, Brent B. Wolfe
Hydrological processes within the alpine tundra of the Taiga Cordillera ecozone in northwestern Canada are poorly understood, yet these areas receive more precipitation per unit area than lowlands and sustain late summer and winter flow in large river systems when contributions from other areas are reduced. The objective of this study was to quantify the spatial and temporal variability in streamflow
-
Thermal history of the permafrost zone in the vicinity of the deep Tyumen SG-6 well, West Siberian Basin Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-11-04 Yu. I. Galushkin
A new software package, ICE2020 of the GALO basin modeling system, is used here to model the thermal evolution of permafrost zones in a sedimentary section of the Tyumen SG-6 well in the Koltogor–Urengoy graben of the West Siberia Basin. Reconstruction of permafrost evolution during the last 3.5 Ma is considered as the final stage of the modeling procedure of the basin, the history of which began with
-
Issue Information Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-10-21
No abstract is available for this article.
-
A review of salt occurrences in soils of the Transantarctic Mountains, Antarctica Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-10-17 Iain B. Campbell, Douglas S. Sheppard
Salts are pervasive throughout the Transantarctic Mountains cold desert soils and are derived primarily from atmospheric sources. Their composition is varied and dependent on local or regional climatic conditions. Their presence within soil profiles ranges from small flecks to continuous salt horizons and their abundance and distribution have a distinct relationship with climatic attributes and land
-
Spatial and temporal dynamics of aufeis in the Tso Moriri basin, eastern Ladakh, India Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-10-12 Dagmar Brombierstäudl, Susanne Schmidt, Marcus Nüsser
Aufeis is a common phenomenon in cold regions of the Northern Hemisphere that develops during winter by successive water overflow and freezing on ice-covered surfaces. Most studies on aufeis occurrence focus on regions in North America and Siberia, while research in High Mountain Asia (HMA) is still in an exploratory phase. This study investigates the extent and dynamics of icing processes and aufeis
-
Geographic object-based image analysis (GEOBIA) of the distribution and characteristics of aeolian sand dunes in Arctic Sweden Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-10-09 Melanie Stammler, Thomas Stevens, Daniel Hölbling
Current climate change in the Arctic is unprecedented in the instrumental record, with profound consequences for the environment and landscape. In Arctic Sweden, aeolian sand dunes have been impacted by climatic changes since their initial formation after the retreat of the last glacial ice sheet. Dune type, location and orientation can therefore be used to explore past wind patterns and landscape
-
Area and borders of Antarctic and permafrost—A review and synthesis Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-10-04 Wojciech Dobiński, Joanna E. Szafraniec, Bartłomiej Szypuła
The Antarctic continent is a crucial area for ultimate determination of permafrost extent on Earth, and its solution depends on the theoretical assumptions adopted. In fact, it ranges from 0.022 × 106 to 14 × 106 km2. This level of inaccuracy is unprecedented in the Earth sciences. The novelty of the present study consists in determining the extent of Antarctic permafrost not based exclusively on empirical
-
High-resolution stable isotopic signals of ground ice indicate freeze–thaw history in permafrost on the northeastern Qinghai–Tibet Plateau Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-09-30 Yuzhong Yang, Qingbai Wu, Huijun Jin
Understanding the mechanism of formation of ground ice and the freeze–thaw history of permafrost is essential when assessing the future of permafrost in a changing climate. High-resolution ground ice records, integrating stable isotopes (δ18O, d-excess, and δ13C), hydrochemistry (EC and pH) data, and cryostratigraphy at a depth of 4.8 m from two contrasting permafrost profiles (P-1, P-2) in the Source
-
Evidence of ground ice melting detected by InSAR and in situ monitoring over permafrost terrain on the Qinghai-Xizang (Tibet) Plateau Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-09-30 Lingxiao Wang, Lin Zhao, Huayun Zhou, Shibo Liu, Guojie Hu, Zhibin Li, Chong Wang, Jianting Zhao
The thawing of ice-rich permafrost has attracted considerable attention in recent years. In this study, we analyzed both the ground surface deformation time series spanning 6 years, derived through the SBAS-InSAR technique on the Qinghai-Xizang (Tibet) Plateau (QTP), and the long-term active layer soil temperature and moisture in situ observations and their relationships. The results showed that long-term
-
Spatial distribution mapping of permafrost in Mongolia using TTOP Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-09-14 Jambaljav Yamkhin, Gansukh Yadamsuren, Temuujin Khurelbaatar, Tsogt-Erdene Gansukh, Undrakhtsetseg Tsogtbaatar, Saruulzaya Adiya, Amarbayasgalan Yondon, Dashtseren Avirmed, Sharkhuu Natsagdorj
This study presents the results of permafrost mapping in Mongolia based on the TTOP (temperature-on-top-of-permafrost) approach, which were validated against in situ measurements at various locations. In situ measurements indicated that the mean annual ground temperature (MAGT) ranged from 0.6 to 2.2°C interannually, showing the greatest variability when furthest from 0°C. The differences between the
-
Analytical model to predict unfrozen water content based on the probability of ice formation in soils Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-09-13 Xusheng Wan, Wansheng Pei, Jianguo Lu, Enxi Qiu, Zhongrui Yan, Nima Pirhadi, Jishuai Zhu
The variation in unfrozen water content with temperature substantially affects coupled heat and water transport in frozen soil, causing frost heave and thaw settlement owing to the ice and water phase change and influencing soil stability in cold regions. Thus, analyzing the mechanism of water freezing and building a predictive model for the unfrozen water content of soils is paramount. In this study
-
Multi-stage evolution of frost-induced microtextures on the surface of quartz grains—An experimental study Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-09-11 Martyna E. Górska, Barbara Woronko
Coarse sand-sized (0.5–1.0 mm) grains of vein quartz were subjected to frost-induced stress under controlled laboratory conditions. A total of 1,000 freeze–thaw (FT) cycles, simulated under different (low, high) water mineralization conditions in the temperature range from −5°C up to +10°C, were used to test effects on collected samples. Scanning electron microscopic (SEM) microtextural analysis of
-
Near-surface geophysical imaging of a thermokarst pond in the discontinuous permafrost zone in Nunavik (Québec), Canada Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-08-20 Léa Bussière, Myriam Schmutz, Richard Fortier, Jean-Michel Lemieux, Alain Dupuy
In this study, high resolution ground-penetrating radar (GPR), electrical resistivity tomography (ERT), and spectral-induced polarization tomography (SIPT) were used to (i) delineate characteristic solifluction features, (ii) map the ice distribution, and (iii) assess subsurface water content and permeability in the surrounding rampart of a thermokarst pond in the discontinuous permafrost zone. The
-
Ground warming and permafrost degradation in various terrestrial ecosystems in northcentral Mongolia Permafr. Periglac. Process. (IF 5.0) Pub Date : 2022-07-31 Qinxue Wang, Tomohiro Okadera, Masataka Watanabe, Tonghua Wu, Batkhishig Ochirbat
To detect the response of permafrost to climate change in various terrestrial ecosystems, we established a permafrost monitoring network in 2007, which includes eight boreholes to monitor ground temperatures in forest, meadow, steppe, moderately dry steppe, and wetland ecosystems and three Automatic Weather Stations (AWS) to monitor climatic factors, such as wind speed (Ws), air temperature (Ta), relative