Academic literature on the topic 'Periglacial processes'

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Journal articles on the topic "Periglacial processes"

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André, Marie-Françoise. "Do periglacial landscapes evolve under periglacial conditions?" Geomorphology 52, no. 1-2 (May 2003): 149–64. http://dx.doi.org/10.1016/s0169-555x(02)00255-6.

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MATSUOKA, Norikazu, and Atsushi IKEDA. "Research Frontier in Periglacial Processes." Journal of Geography (Chigaku Zasshi) 121, no. 2 (2012): 269–305. http://dx.doi.org/10.5026/jgeography.121.269.

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Hutchinson, J. N. "Theme lecture: Periglacial and slope processes." Geological Society, London, Engineering Geology Special Publications 7, no. 1 (1991): 283–331. http://dx.doi.org/10.1144/gsl.eng.1991.007.01.27.

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AbstractFollowing a palaeoclimatic outline of the Late Quaternary, the paper reviews the periglacial and slope processes which have most effect on engineering works, particulary with regard to relic forms of such features in Britain. The first topics covered are; frost heave and thaw consolidation, thermokarst and periglacial mass movements, with particular attention to periglacial solifluction and slope development. Ground water discharge features, comprising pingos, anomalous depressions in the London Basin and perforated clay feather edges, are then discussed, as are superficial valley disturbances in various geological settings. The paper concludes by exploring theoretical and geological approaches to the determination of the former depths of permafrost in Britain.
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Vandenberghe, Jef, and Ming-ko Woo. "Modern and ancient periglacial river types." Progress in Physical Geography: Earth and Environment 26, no. 4 (December 2002): 479–506. http://dx.doi.org/10.1191/0309133302pp349ra.

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Climate has been proposed conventionally as the primary factor that determines periglacial river activity (aggradation) and pattern (braided). This concept does not explain the rich diversity in river patterns and morphological processes in both the present and past periglacial environments: besides braided rivers and sandur, meandering, anabranching, transitional and deltaic rivers also occur. A first attempt is made to combine past and present periglacial river types with regard to their morphology, processes and environments. The processes that control river energy and morphology are discussed especially for periglacial conditions. This approach permits an assessment of the responses of periglacial rivers to climatic conditions and the modulation of the responses due to changes in the basin properties. Examples drawn from palaeo- and present-day periglacial rivers and environments demonstrate that there is no unique type of periglacial river but rather an azonal fluvial system with a number of periglacial variants.
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Egholm, D. L., J. L. Andersen, M. F. Knudsen, J. D. Jansen, and S. B. Nielsen. "The periglacial engine of mountain erosion – Part 2: Modelling large-scale landscape evolution." Earth Surface Dynamics Discussions 3, no. 2 (April 22, 2015): 327–69. http://dx.doi.org/10.5194/esurfd-3-327-2015.

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Abstract. An increasing number of studies point to a strong periglacial control on bedrock erosion in mountain landscapes. Periglacial processes have also been suggested to control the formation of block-fields on high-elevation, low-relief surfaces (summit flats) found in many alpine landscapes. However, to which degree periglacial processes took part in accelerating global erosion rates in response to Late Cenozoic cooling still remains as an unanswered question. In this study, we present a landscape evolution model that incorporates two periglacial processes; frost cracking and frost creep, which both depend on the mean annual temperature (MAT) and sediment thickness. The model experiments allow us to time-integrate the contribution of periglacial processes to mountain topography over million-year time scales. It is a robust result of our experiments that periglacial frost activity leads to the formation of smooth summit flats at elevations dominated by cold climatic conditions through time periods of millions of years. Furthermore, a simplistic scaling of temperatures to δ18O values through the late-Cenozoic indicates that many of the highest summit flats in mid- to high-latitude mountain ranges can have formed prior to the Quaternary. The model experiments also suggest that cooling in the Quaternary accelerated periglacial erosion by expanding the areas affected by periglacial erosion significantly. A computational experiment combining glacial and periglacial erosion furthermore suggests that landscape modifications associated with glacial activity may increase the long-term average efficiency of the frost-related processes.
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Stachoň, Zdeněk, Jan Russnák, Daniel Nývlt, and Filip Hrbáček. "Stabilisation of geodetic points in the surroundings of Johann Gregor Mendel Station, James Ross Island, Antarctica." Czech Polar Reports 4, no. 1 (January 1, 2014): 80–89. http://dx.doi.org/10.5817/cpr2014-1-9.

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The article is focused on issuing of the permanent stabilisation of geodetic points in the periglacial environment. Periglacial environment of ice-free areas of northern James Ross Island is characterised by specific geomorphological processes connected with freezing and thawing and mass movement processes in the superficial part of the ground. Variable intensity of periglacial processes creates main limitations for traditional methods of permanent geodetic point’s stabilisation. This article describes periglacial processes with regards to the traditional stabilisation methods and suggests alternative solutions, which were practically applied and verified on the ice-free area of Ulu Peninsula, northern James Ross Island.
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Berthling, Ivar, and Bernd Etzelmüller. "The concept of cryo-conditioning in landscape evolution." Quaternary Research 75, no. 2 (March 2011): 378–84. http://dx.doi.org/10.1016/j.yqres.2010.12.011.

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AbstractRecent accounts suggest that periglacial processes are unimportant for large-scale landscape evolution and that true large-scale periglacial landscapes are rare or non-existent. The lack of a large-scale topographical fingerprint due to periglacial processes may be considered of little relevance, as linear process–landscape development relationships rarely can be substantiated. Instead, periglacial landscapes may be classified in terms of specific landform associations. We propose “cryo-conditioning”, defined as the interaction of cryotic surface and subsurface thermal regimes and geomorphic processes, as an overarching concept linking landform and landscape evolution in cold regions. By focusing on the controls on processes, this concept circumvents scaling problems in interpreting long-term landscape evolution derived from short-term processes. It also contributes to an unambiguous conceptualization of periglacial geomorphology. We propose that the development of several key elements in the Norwegian geomorphic landscape can be explained in terms of cryo-conditioning.
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Matsuoka, Norikazu. "Climate and material controls on periglacial soil processes: Toward improving periglacial climate indicators." Quaternary Research 75, no. 2 (March 2011): 356–65. http://dx.doi.org/10.1016/j.yqres.2010.12.014.

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AbstractOne of the distinguished efforts of A.L. Washburn was to reconstruct mean annual air temperature using periglacial features as climate indicators. This paper reviews existing periglacial indicators and proposes a strategy to improve their thermal resolution based on recent periglacial process studies, with a focus on solifluction and thermal contraction cracking and associated landforms/structures. Landforms resulting from solifluction reflect both the depth subjected to freeze–thaw and the thickness of frost-susceptible soils. The thickness of a solifluction structure can be used to infer the dominant freeze–thaw regime and minimum seasonal frost depth. Ice-wedge pseudomorphs have limited potential as a climate indicator because (1) they mainly reflect extreme winter temperatures, (2) their thermal thresholds depend on the host material, and (3) they need to be distinguished from frost wedges of other origin produced under different thermal and/or material conditions. Monitoring studies of currently active ice wedges suggest that ice-wedge cracking requires a combination of low temperature and large temperature gradients in the frozen active layer. Further field monitoring of periglacial processes and their controlling factors under various climate conditions and in various materials are needed, however, to improve the resolution of periglacial paleoclimate indicators.
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Buček, Antonín, Jaromír Kolejka, and Robert Kostka. "Selected landscape forming-processes in the volcanic Putorana Plateau (Taymir, Siberia)." Geografie 101, no. 3 (1996): 232–46. http://dx.doi.org/10.37040/geografie1996101030232.

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The development and products of the natural processes present in the hard rock and weak rock areas of the volcanic Putorana Plateau were studied. Intensive frost weathering causes the degradation of glacial land forms and the formation of periglacial forms. A progressive permafrost degradation occurs on valley bottoms, accompanied by alas lake origin, peat mound creation, pingo degradation and periglacial soil development.
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Rapp, Anders. "Advances in periglacial geomorphology." Geomorphology 4, no. 2 (June 1991): 157–59. http://dx.doi.org/10.1016/0169-555x(91)90028-9.

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Dissertations / Theses on the topic "Periglacial processes"

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Boereboom, Thierry. "Greenhouse gases investigations in ice from periglacial environments." Doctoral thesis, Universite Libre de Bruxelles, 2012. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209673.

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L’environnement périglaciaire en général et les régions de permafrost en particulier, connus pour être très sensibles au changement climatique actuel, sont le sujet de beaucoup d’études sur les émissions de gaz à effet de serre. En effet, le dégel de ces milieux engendre la mobilisation d’une quantité importante de matière organique, précédemment piégée par le froid, favorisant les émissions de dioxyde de carbone et/ou de méthane. L’objectif premier, du présent travail, est de contribuer à l’étude des gaz enfermés dans certains types de glace de ces régions afin de mieux quantifier leur impact potentiel sur le climat.

Dans un premier temps, une analyse multiparamétrique a été menée sur deux coins de glace du nord de la Sibérie dans la cadre d’une collaboration avec l’Alfred Wegener Institut (Allemagne). Cette première approche a révélé que l’analyse conjointe de la cristallographie, de l’orientation des axes optiques, du contenu en gaz total et de la composition en gaz des coins de glace est un outil puissant, complémentaire aux analyses des isotopes stables, pour comprendre les conditions paléo-climatiques qui ont régi la construction des coins de glace. Cette étude soutient également l’hypothèse de variations spatiales importantes de l’origine des masses d’air durant les variations climatiques du Pléistocène.

Dans un deuxième temps, une analyse des caractéristiques de la glace annuelle de 4 lacs du nord de la Suède a été réalisée afin d’étudier le rôle de la couverture de glace sur les émissions de gaz à effet de serre. En effet, les lacs de ces régions contribuent fortement aux émissions de méthane durant la période d’eau libre et très peu d’études ont analysé la quantité de méthane emprisonnée dans la glace hivernale et relâchée au printemps. Ce projet nous a amené à établir une nouvelle classification des bulles dans la glace de lac basée sur leur contenu en méthane, leur origine, leur forme et leur densité. Il nous a également permis de montrer que plusieurs facteurs interviennent sur le contenu en gaz dans la couverture de glace :le système hydrologique, la variation de la pression atmosphérique, la variabilité des émissions et potentiellement la proximité des sédiments sont autant de facteurs qui déterminent le contenu en gaz. L’analyse de la composition des gaz a révélé que la composition observée dans la glace est sensiblement différente de celle observée durant les périodes d’eau libre. Nous avons également, pour la première fois, établit un budget des émissions de méthane relâchées par la fonte de la couverture de glace au niveau mondial.

Cette étude a été complétée par l’analyse des isotopes 13C des gaz des différents types de bulles de notre classification en collaboration avec l’Université d’Utrecht. Nous avons alors mis en évidence que la couverture de glace influence l’équilibre biogéochimique dans l’eau en favorisant l’oxydation du méthane en dioxyde de carbone.


Doctorat en Sciences
info:eu-repo/semantics/nonPublished

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Arosio, Riccardo. "Late Devensian ice sheet dynamics and the deglaciation of the Hebridean shelf, western Scotland, UK." Thesis, University of the Highlands and Islands, 2017. https://pure.uhi.ac.uk/portal/en/studentthesis/late-devensian-ice-sheet-dynamics-and-the-deglaciation-of-the-hebridean-shelf-western-scotland-uk(5da41b09-53fd-46ac-8228-bc6d40bd61fa).html.

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The reconstruction of marine-based paleo ice sheet dynamics can reveal long-term ice sheet activity, and in turn provide constraints on the response of modern marine ice sheets (e.g. the West Antarctica Ice Sheet) to climate change. The marine-terminating Hebrides Ice Stream (HIS) flowed across the western Scottish shelf during the last glacial maximum (3024 ka) and drained a large portion of the northern sector of the British Irish-Ice Sheet (BIIS), affecting its stability. This thesis aims to examine how the HIS evolved and interacted with the changing climate and the underlying landscape after 27 ka. The work is subdivided into: a) an investigation of modern high-resolution bathymetry data coupled with seismic data with the aim of reconstructing deglacial dynamics; b) the analysis of Pb isotopic composition in sediment cores on the shelf in order to locate glacial sediment provenance; c) a study of Hebrides shelf core sedimentology and microfaunal assemblage to reconstruct Lateglacial paleoenvironmental changes. A three-stage deglacial pattern, where topography played a critical role, is defined: i) ice stream margin retreat punctuated by standstills, ii) topography-controlled fjordic retreat, with evolution from a coherent ice-sheet to separate fjord tidewater glaciers, and iii) a stabilisation at the transition from tidewater to land-based ice margins. Between 21 and 15 ka, fine-grained sediments transported by meltwater plumes were the product of erosion of Neoproterozoic basement, while the coarse-grained sediments were instead sourced from island igneous rocks. These results indicate prevailing sediment input from NW Scotland. Lateglacial sediment deposition was strongly influenced by shelf currents and shows wide variation. Therefore, the seismic and sedimentological interpretations need to be considered only on a local scale. Glacimarine sandy deposits in the Muck Deep region support a prolonged glacial occupancy until the latest stages of GS-1 (12.8-11.7 ka), and are at odds with recent studies indicating earlier glacial retreat. The thesis demonstrates the complex interactions between BIIS evolution, subglacial landscape and ocean dynamics. The outcome of this research can be useful to inform future numerical reconstructions.
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Cook, Judith Diane. "Active and relict sorted circles, Jotunheimen, Norway : a study of the altitudinal zonation of periglacial processes." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265820.

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Chan, Yi-Chin, and 陳毅青. "Freeze-thaw processes and periglacial landforms of High Mountain in Taiwan." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/99486171981006056788.

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碩士
國立臺灣大學
地理環境資源學研究所
95
Frost action is one of the important environmental factors in alpine and periglacial climate. Among them, freeze-thaw process is the most influential geomorphologic process in the area. Freeze-thaw weathering and gelifluction movement shapes the landform in high mountain area of Taiwan. In this study, the air and ground temperature data of 2, 10 and 20 cm depth of Mt. Nanhu was used to model the magnitude, frequency and distribution of freeze-thaw process. Besides, field investigation was also conducted to depict the geomorphological map in Mt. Nanhu area. According to ground temperature data in Mt. Nanhuta collected from 2001 to 2005, frequency of freeze-thaw processes at depth of 2 , 10 and 20cm was 55, 8.75 and 1.25 times per year respectively. The freeze-thaw process was weak at depth of 20cm. It was most frequent in autumn and spring but not few in winter for freeze and snow cover in that period. At the depth of 10 cm in the ground, there are about 2 months of frozen period per year in average. The measured and estimated ground temperature data are highly correlated, the R-square value is 0.7875, and the numbers of freeze-thaw from measurement and estimation by the model are identical. The relationship between elevation and freeze-thaw cycle is in logarithm regression by the estimation of the model. However, the relationship between freeze-thaw cycle and forest line in Mt. Nanhuta is not clear. According to field investigation, there are some periglacial landforms in the Mt. Nanhuta and Mt. Hehuan, including turf-banked lobes terraces, talus accumulation and talus slopes. Turf-banked lobes terrace are crescent shape terrace developed in Mt. Sheimajuei and the saddle between main peak and east peak of Mt. Nanhuta. Talus accumulation is developed in the saddle between main peak and east peak of Mt. Nanhuta. Talus slope is accumulated a lot of frost-wedging rock which is located at east of upper-cirque. It shows that freeze-thaw processes are active in the Mt. Nanhuta, so there are many periglacial landscapes between 3200-4000m above sea level.
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Žížalová, Ivana. "Polohové a morfometrické charakteristiky polygonů mrazových klínů na Marsu." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-411450.

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The aim of this thesis is to analyze zonality of the thermal contraction crack polygons on the surface of Mars. Their morphology and its variation are analyzed in relation to the latitude of Mars. For spatial and morphological analysis were selected 64 images from the HiRISE (Mars Reconnaissance Orbiter) polychromatic camera dataset, images are covering the bandwidths proportionally. Images were first visually analyzed using HiView. 258 areas containing the thermal contraction crack polygons (with total area of 1184 km2 ) and 1036 well developed thermal contraction crack polygons were further vectorized using ArcMap. The thermal contraction crack polygons were found in every searched latitude which proves the ubiquity of permafrost. The largest amount of the thermal contraction crack polygons have been found in latitudes ±60ř and 45ř. In these latitudes were also found the largest and probably the deepest thermal contraction crack polygons (average length ranges from 42,1 - 73,6 m). The smallest polygons (average length 7,7 m) were found around the equator. "Altitude" has no effect on the spread of the thermal contraction crack polygons on Mars; however it has the effect on its morphology. The most widespread are pentagonal polygons, which occur mainly in the southern hemisphere. The next most...
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Books on the topic "Periglacial processes"

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London, Geological Society of, and Quaternary Research Association (Great Britain), eds. Periglacial and paraglacial processes and environments. London: Geological Society, 2009.

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Ice-marginal and periglacial processes and sediments. London: Geological Society, 2011.

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C, Kneisel, ed. Applied geophysics in periglacial environments. Cambridge: Cambridge University Press, 2008.

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Zwoliński, Zbigniew. Mobilność materii mineralnej na obszarach paraglacjalnych, Wyspa Króla Jerzego, Antarktyka Zachodnia. Poznań: Wydawnictwo Naukowe Uniwersytetu im. Adama Mickiewicza, 2007.

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Öztürk, Muhammed Zeynel. Uludağ' daki periglasiyal süreçlerin, periglasiyal yerşekillerinin ve bunları denetleyen etmenlerin incelenmesi. Bursa: Nilüfer Akkılıç Kütüphanesi Yayınları, 2012.

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Pitty, Alistair F. Geomorphological processes in Britain in a periglacial age. Norwich: University of East Anglia, School of Environmental Sciences, 1988.

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Paraglacial sediment storage quantification in the Turtmann Valley, Swiss Alps. Bergisch Gladbach: Ferger, 2009.

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Bailey, Palmer K. Periglacial landforms and processes in the southern Kenai Mountains, Alaska. [Hanover, N.H.]: US Army Corps of Engineers, Cold Regions Research & Engineering Laboratory, 1985.

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Lopez-Gamundi, Oscar R. Late Paleozoic glacial events and postglacial transgressions in Gondwana. Boulder, Colo: Geological Society of America, 2010.

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Woronko, Barbara. Zapis procesów eolicznych w osadach piaszczystych plejstocenu na wybranych obszarach Polski środkowej i północno-wschodniej. Warszawa: Wydział Geografii i Studiów Regionalnych, Uniwersytet Warszawski, 2012.

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Book chapters on the topic "Periglacial processes"

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French, Hugh M. "Azonal Processes and Landforms." In The Periglacial Environment, 248–79. West Sussex, England: John Wiley & Sons Ltd,., 2013. http://dx.doi.org/10.1002/9781118684931.ch10.

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French, Hugh M. "Hillslope Processes and Slope Evolution." In The Periglacial Environment, 216–47. West Sussex, England: John Wiley & Sons Ltd,., 2013. http://dx.doi.org/10.1002/9781118684931.ch9.

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Bondyrev, Igor V., Zurab V. Davitashvili, and Vijay P. Singh. "Glacial and Periglacial Processes." In World Regional Geography Book Series, 87–95. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-05413-1_9.

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Wilson, Peter. "Periglacial and Paraglacial Processes, Landforms and Sediments." In Advances in Irish Quaternary Studies, 217–54. Paris: Atlantis Press, 2016. http://dx.doi.org/10.2991/978-94-6239-219-9_8.

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Onaca, Alexandru, Petru Urdea, Adrian C. Ardelean, Raul Șerban, and Florina Ardelean. "Present-Day Periglacial Processes in the Alpine Zone." In Springer Geography, 147–76. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32589-7_7.

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Tobler, Daniel, Peter Mani, Rachel Riner, Nils Haehlen, and Hugo Raetzo. "Prediction of Climate Change Forced Mass Movement Processes Induced in Periglacial Areas." In Engineering Geology for Society and Territory - Volume 1, 143–47. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09300-0_27.

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Bertotto, Stefania, Luigi Perotti, Marco Bacenetti, Elisa Damiano, Chiarle Marta, and Marco Giardino. "Integrated Geomatic Techniques for Assessing Morphodynamic Processes and Related Hazards in Glacial and Periglacial Areas (Western Italian Alps) in a Context of Climate Change." In Engineering Geology for Society and Territory - Volume 1, 173–76. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09300-0_33.

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Weyman, Darrell, and Valerie Weyman. "Glacial and Periglacial Landscapes." In Landscape Processes, 58–70. Routledge, 2020. http://dx.doi.org/10.4324/9780429316319-4.

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Murton, Julian. "Periglacial Processes and Deposits." In Encyclopedia of Geology, 857–75. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-409548-9.11925-6.

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Kennedy, Barbara A. "II(ii) Periglacial Morphometry." In Introduction to Fluvial Processes, 169–76. Routledge, 2019. http://dx.doi.org/10.4324/9780429273315-12.

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Conference papers on the topic "Periglacial processes"

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Amantov, Aleksey, Aleksey Amantov, Willy Fjeldskaar, and Willy Fjeldskaar. "ICE AGE AND COASTAL ADAPTATIONS." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b942b546c29.90248576.

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Eustatic changes have interrelations with other long-term processes, connected with the glacial activity and related isostatic adjustment. Topographic changes in glacial and periglacial areas, linked with sediment- and hydro-isostasy, influence the redistribution of amount of water globally before and after glaciations. Glacial erosion is a significant, but variable factor. Many enclosed basins of different order- including the Baltic -were created or strongly modified by this process. In relation to the ice age onset they can hold additional amount of water, even if related isostasy reduces its volume. Accumulation replaces ocean water by low-compacted sediments, with additional subsidence, but part of deposition remains in coastal areas. Negative topographic elements, previously occupied by central parts of ice sheets (Bothnian, Hudson Bay) would likely remain stable water storage with gradual shallowing up to future system of giant lakes. Hydro-isostasy impacted non-uniform relocation of coastal zone in local and regional scale.
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Amantov, Aleksey, Aleksey Amantov, Willy Fjeldskaar, and Willy Fjeldskaar. "ICE AGE AND COASTAL ADAPTATIONS." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b43153b7e56.

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Eustatic changes have interrelations with other long-term processes, connected with the glacial activity and related isostatic adjustment. Topographic changes in glacial and periglacial areas, linked with sediment- and hydro-isostasy, influence the redistribution of amount of water globally before and after glaciations. Glacial erosion is a significant, but variable factor. Many enclosed basins of different order- including the Baltic -were created or strongly modified by this process. In relation to the ice age onset they can hold additional amount of water, even if related isostasy reduces its volume. Accumulation replaces ocean water by low-compacted sediments, with additional subsidence, but part of deposition remains in coastal areas. Negative topographic elements, previously occupied by central parts of ice sheets (Bothnian, Hudson Bay) would likely remain stable water storage with gradual shallowing up to future system of giant lakes. Hydro-isostasy impacted non-uniform relocation of coastal zone in local and regional scale.
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