Arctic, Antarctic, and Alpine Research最新文献

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Introduction: Processes and Palaeo-Environmental Changes in the Arctic from Past to Present (PalaeoArc) special issue 简介:从过去到现在北极的过程和古环境变化(古弧)特刊
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-31 DOI: 10.1080/15230430.2022.2154985
A. Lyså, A. Jennings, C. Morigi, C. Stokes, M. Winsborrow
{"title":"Introduction: Processes and Palaeo-Environmental Changes in the Arctic from Past to Present (PalaeoArc) special issue","authors":"A. Lyså, A. Jennings, C. Morigi, C. Stokes, M. Winsborrow","doi":"10.1080/15230430.2022.2154985","DOIUrl":"https://doi.org/10.1080/15230430.2022.2154985","url":null,"abstract":"PalaeoArc (Processes and Palaeo-Environmental Changes in the Arctic: From Past to Present) is an international network research programme, the aim of which is to understand and explain the climatically induced environmental changes in the Arctic that have taken place throughout the Quaternary and continue in the present-day (see http://www.palaeoarc.no/). This network builds on and extends the impressive legacy of previous palaeo-Arctic network programs and projects extending back to the 1980s. This began with the “Polar North Atlantic Margins—Late Cenozoic Evolution” project (PONAM: 1990–1994; Hjort and Persson 1994; Landvik and Salvigsen 1995; Elverhøi et al. 1998), which was followed by the “Quaternary Environment of the Eurasian North” project (QUEEN: 1996–2002; e.g., Larsen, Funder, and Thiede 1999; Thiede et al. 2001, 2004; Kjær et al. 2006). These were then followed by the “Arctic Palaeoclimate and Its Extremes” project (APEX: 2004–2012; Jakobsson et al. 2008, 2010, 2014) and the “Palaeo-Arctic Spatial and Temporal Gateways” project (PAST Gateways: 2012–2018; Ó Cofaigh et al. 2016, 2018). The latest incarnation of the network—PalaeoArc— was conceived at the final meeting of the PAST Gateways project in Durham, UK, in April 2019, when a new international steering committee was appointed to organize a series of activities and annual conferences for the following six years (2019–2024). The new international network held its first meeting in Poznań (20– 24 May 2019), hosted by the Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, Poznań (see Lyså et al. 2019), comprising the usual mix of talks, posters, discussions, workshops, and a field excursion. The network planned to organize a conference hosted by the Department of Earth Sciences at the University of Pisa in May 2020, but this had to be postponed due to the COVID-19 pandemic and was eventually held online in May 2021, endorsed by the International Arctic Science Council, Italian Geological Society, and Italian Association for the Study of the Quaternary. The meeting proved incredibly popular and was “attended” by over 250 Arctic scientists from twenty-six different countries over a four-day period, allowing glacial and marine geologists, palaeoceanographers, palaeoecologists, and specialists in permafrost and numerical modeling to discuss records of Arctic environmental change over decadal to millennial timescales. The collection of articles in this special issue stems from this second PalaeoArc International Conference and encompasses the diverse range of topics presented at the meeting, each of which addresses the overarching aims of PalaeoArc (detailed below). The third international PalaeoArc conference took place (in person) in Rovaniemi in August 2022. The network has been extended for a year, with further meetings planned in Akureyri (2023), Stockholm (2024), and Tromsø (2025).","PeriodicalId":8391,"journal":{"name":"Arctic, Antarctic, and Alpine Research","volume":"54 1","pages":"640 - 647"},"PeriodicalIF":2.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43697556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sedimentary facies and clay mineralogy of the late Pleistocene Landsort Deep sediments, Baltic Sea — Implications for the Baltic Ice Lake development 波罗的海晚更新世陆地港深层沉积物的沉积相和粘土矿物学——对波罗的海冰湖开发的启示
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-22 DOI: 10.1080/15230430.2022.2155352
Raisa Alatarvas, K. Strand, O. Hyttinen, A. Kotilainen
{"title":"Sedimentary facies and clay mineralogy of the late Pleistocene Landsort Deep sediments, Baltic Sea — Implications for the Baltic Ice Lake development","authors":"Raisa Alatarvas, K. Strand, O. Hyttinen, A. Kotilainen","doi":"10.1080/15230430.2022.2155352","DOIUrl":"https://doi.org/10.1080/15230430.2022.2155352","url":null,"abstract":"ABSTRACT The Landsort Deep is the deepest part of the Baltic Sea and contains an excellent high-resolution late Pleistocene sediment record suitable to study the retreat history of the southern margin of the Fennoscandian Ice Sheet and the development of the ice-marginal Baltic Ice Lake (BIL) from ~13.5 to 10.5 ka BP. The studied cores are from the lithostratigraphic Units V and VI of Hole M0063C that were recovered during the Integrated Ocean Drilling Program (IODP) Expedition 347. The subdivision and interpretation of the studied BIL record are based on the identification of seven distinct sedimentary facies, grain size characteristics, detrital clay minerals, water and carbon content, and physical properties. The ice-rafted debris (IRD) in the lowermost part of Unit VI indicates a proximal glaciolacustrine environment. The onset of the Fennoscandian Ice Sheet deglaciation during the warm Bølling/Allerød interstadial caused a rise of the proglacial lake water level and the transition from ice-proximal (IRD-containing sediments) to ice-distal varved sediments (rhythmically laminated silty clays) detected within the middle part of Unit VI. This depositional unit of constant sedimentation was followed by the first drainage event of the BIL, which led to the deposition of a distinct clay-rich interval representing erosion and redeposition of the emerged lake bottom sediments. The reduced grain size of the overlying sediments is associated to the onset of cooler climate conditions and a possible ice sheet readvance during the Younger Dryas that resulted in a decrease of meltwater release and sediment availability. The higher sand content and kaolinite peak are associated to a rapid ice retreat and the release of abundant sediment laden meltwater plumes at the end of the Younger Dryas. The final drainage of the BIL enabled the erosion of coastal clay sediments, and the termination of the ice lake stage led to enhanced clay sedimentation to the Landsort Deep.","PeriodicalId":8391,"journal":{"name":"Arctic, Antarctic, and Alpine Research","volume":"54 1","pages":"624 - 639"},"PeriodicalIF":2.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43341041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Stress-associated metabolites vary with both season and habitat across populations of a climate sentinel species 气候哨兵物种种群中与压力相关的代谢物随季节和栖息地而变化
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-21 DOI: 10.1080/15230430.2022.2146633
A. Whipple, C. Ray, J. Varner, J. N. Kitchens, A. Hove, J. C. Castillo Vardaro, J. L. Wilkening
{"title":"Stress-associated metabolites vary with both season and habitat across populations of a climate sentinel species","authors":"A. Whipple, C. Ray, J. Varner, J. N. Kitchens, A. Hove, J. C. Castillo Vardaro, J. L. Wilkening","doi":"10.1080/15230430.2022.2146633","DOIUrl":"https://doi.org/10.1080/15230430.2022.2146633","url":null,"abstract":"ABSTRACT Relating physiological stress to habitat quality could refine conservation efforts. Habitat quality, which is often inferred from patch occupancy or demographic rates, might be measured in a more timely and nuanced way using metrics of physiological stress. To understand whether stress-associated hormones vary with metrics of habitat quality, we measured fecal glucocorticoid metabolite (FGM) levels in the American pika (Ochotona princeps), a small mammal with well-defined habitat (talus), which can vary in quality depending on the presence of subsurface ice features. In spring and fall 2018, we collected feces noninvasively from pika territories in taluses “with” or “without” subsurface ice to capture seasonal variation in FGM between habitat types. We used linear mixed effects models to explore the interactions among season, habitat metrics (including subsurface ice status), and subsurface temperature as predictors of FGM. We found support for interacting effects on FGM levels, which covaried with season, elevation, putative ice presence, graminoid to forb ratio, graminoid cover, and measures of acute subsurface heat exposure. However, only one subsurface temperature metric differed according to putative presence of subsurface ice. Our results contribute to the growing evidence that FGMs might be developed as a tool to assess habitat quality.","PeriodicalId":8391,"journal":{"name":"Arctic, Antarctic, and Alpine Research","volume":"54 1","pages":"603 - 623"},"PeriodicalIF":2.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41531464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mass balance, ice volume, and flow velocity of the Vestre Grønfjordbreen (Svalbard) from 2013/14 to 2019/20 2013/14年至2019/20年斯瓦尔巴群岛Vestre Grønfjordbreen的质量平衡、冰体积和流速
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-16 DOI: 10.1080/15230430.2022.2150122
A. Terekhov, S. Verkulich, Alexander Borisik, V. Demidov, U. Prokhorova, Kseniia Romashova, Mikhail Anisimov, O. Sidorova, Gleb Tarasov
{"title":"Mass balance, ice volume, and flow velocity of the Vestre Grønfjordbreen (Svalbard) from 2013/14 to 2019/20","authors":"A. Terekhov, S. Verkulich, Alexander Borisik, V. Demidov, U. Prokhorova, Kseniia Romashova, Mikhail Anisimov, O. Sidorova, Gleb Tarasov","doi":"10.1080/15230430.2022.2150122","DOIUrl":"https://doi.org/10.1080/15230430.2022.2150122","url":null,"abstract":"ABSTRACT The first seven years (2013/14–2019/20) of annual and seasonal mass-balance monitoring on the glacier Vestre Grønfjordbreen (16.4 km2), located south of the town of Barentsburg on Spitsbergen, Svalbard, are presented. This part of the archipelago is one of the least glaciated on Svalbard and at the same time it experiences the most prominent glacier retreat within the last few decades. The annual mass balance of Vestre Grønfjordbreen is negative, ranging from −0.60 ± 0.18 to −2.01 ± 0.26 m w.e. The results of direct observations are compared with the geodetic mass balance for the same period (July 2015 through end of summer 2019) to identify systematic bias in the record. As the mismatch between cumulative mass balances, defined by the glaciological method (−5.66 ± 0.47 m w.e.) and computed from geodetic differencing (−5.52 ± 0.40 m w.e.), lies within the uncertainty limits, no calibration of the mass-balance series is needed. From the results of a ground-penetrating radar (GPR) survey (spring 2019), which confirmed the polythermal glacier structure, a total glacier volume of 1.987 ± 0.139 km3 was found, meaning that the cumulative mass loss during the reported seven-year period equals 8 ± 1% of the total glacier mass. Observed annual ice-flow velocities, varying from 0.50 ± 0.10 to 4.50 ± 0.10 m year−1, are consistent with low mean bed and surface slopes (5° and 8°, respectively). Correlations of mass-balance values with meteorological observations at the Barentsburg weather station are mediocre, possibly due to anomalous values recorded for 2015/16: the negative mass-balance peak reported for the other land-terminating Svalbard glaciers was not observed at Vestre Grønfjordbreen.","PeriodicalId":8391,"journal":{"name":"Arctic, Antarctic, and Alpine Research","volume":"54 1","pages":"584 - 602"},"PeriodicalIF":2.0,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44673694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Climate change in the western part of the Russian Arctic in 1980–2021. Part 2. Soil temperature, snow, humidity 1980-2021年俄罗斯北极西部的气候变化。第2部分。土壤温度,积雪,湿度
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-12 DOI: 10.30758/0555-2648-2022-68-4-352-369
I. Serykh, A. Tolstikov
{"title":"Climate change in the western part of the Russian Arctic in 1980–2021. Part 2. Soil temperature, snow, humidity","authors":"I. Serykh, A. Tolstikov","doi":"10.30758/0555-2648-2022-68-4-352-369","DOIUrl":"https://doi.org/10.30758/0555-2648-2022-68-4-352-369","url":null,"abstract":"Based on average monthly data from the re-analysis of NASA MERRA-2 satellite measurements, the paper explores climatic changes in the temperature of the upper 1.5 meters of soil (TS), the thickness and area of the snow cover (SC), the moisture content of the top layer of soil 1 meter thick (SM) and air humidity at a height of 2 meters from the surface (AH) in the western part of the Russian Arctic (60°–75° N, 30°–85° E) for 1980–2021. The time interval considered is divided into two periods: 1980–2000 and 2001–2021. The differences between the average values of the parameters studied for these periods are calculated. The climatic changes that have occurred for the winter and summer seasons, as well as for each month of the year, are considered separately. Calculation of linear and quadratic trends has revealed an accelerating growth in the TS of the region studied in the period 2001–2021. A decrease in the thickness of the SC and a significant reduction in the area of the SC in November and April are shown. An increase in SM was found in the southwest and east of the region studied in the period 2001–2021, and a significant increase in AH in the western part of the Russian Arctic over the time interval studied is shown. Moreover, the growth of AH over the waters of the Barents, Kara and White Seas significantly accelerated in 2001–2021 compared to 1980–2000.","PeriodicalId":8391,"journal":{"name":"Arctic, Antarctic, and Alpine Research","volume":"1 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82878010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Anisotropy of the friction forces of rest and sliding frictionof single crystals of ice 冰单晶静止摩擦力和滑动摩擦力的各向异性
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-12 DOI: 10.30758/0555-2648-2022-68-4-406-419
B. P. Egorov
{"title":"Anisotropy of the friction forces of rest and sliding frictionof single crystals of ice","authors":"B. P. Egorov","doi":"10.30758/0555-2648-2022-68-4-406-419","DOIUrl":"https://doi.org/10.30758/0555-2648-2022-68-4-406-419","url":null,"abstract":"The properties of the ice of natural reservoirs are due to its crystalline structure. The dependence of the mechanical and strength characteristics of single ice crystals on the angle between the direction of application of force to a single crystal and the direction of its C-axis is known. Basically, this dependence is due to the possibility of the base plates of a single crystal of ice sliding relative to each other. In physics, in addition to the mechanical and strength characteristics of a solid, the properties of the surfaces of a solid state, manifested in the process of friction, are of great importance. The friction of two single crystals of ice relative to each other has been investigated in experiments on rest friction and sliding friction. From an artificially grown plate of a single ice crystal, samples of single crystals of ice with a certain orientation of the C-axis were made for the experiment. The measurement of the rest friction coefficient of a single ice crystal was realized according to the classical scheme of recording the minimum angle at which the single crystal began to roll down an inclined surface. The dependence of the rest friction coefficient of ice single crystals on the mutual orientation of the C-axes of single crystals relative to each other was discovered. The coefficients of rest friction in the case that the C-axes of single ice crystals are parallel to each other significantly exceed those obtained when the C-axes of single ice crystals are perpendicular to each other. Measurements have shown that the anisotropy of sliding friction increases with increasing initial velocity of the single crystal on the surface of the second single crystal. This is explained by the fact that with the growth of the path traveled by the M2 crystal, the time of interaction of single crystals of ice also increases, during which the properties of the anisotropy of single crystals of ice relative to sliding friction are manifested. Studies have shown the presence of anisotropy of the friction forces of rest and friction of sliding of a pair of single crystals of ice.","PeriodicalId":8391,"journal":{"name":"Arctic, Antarctic, and Alpine Research","volume":"46 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79010986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial variations of the hummocks keel draft in the Laptev Sea area 拉普捷夫海地区小丘龙骨吃水的空间变化
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-12 DOI: 10.30758/0555-2648-2022-68-4-332-351
A. K. Naumov, E. Skutina, D. O. Yakimushkin
{"title":"Spatial variations of the hummocks keel draft in the Laptev Sea area","authors":"A. K. Naumov, E. Skutina, D. O. Yakimushkin","doi":"10.30758/0555-2648-2022-68-4-332-351","DOIUrl":"https://doi.org/10.30758/0555-2648-2022-68-4-332-351","url":null,"abstract":"The article investigates the morphometric features of the ice cover lower surface in the Laptev Sea area. The main attention is paid to the study of the hummocked formations’ keel draft and the spatial variability of this quantity. The data for the research were obtained during several ice seasons (from two to four) in the period 2014-2019 using upward-looking sonars, which were part of the submerged autonomous buoy stations (SABS). The stations were installed at five points in the Laptev Sea area. The data obtained from a series of observations of the ice cover draft allowed extracting information on the hummocked formations’ keel draft at separate points of the sea area. As a result, samples of values of the hummocks keel draft were formed for separate ice seasons for each of the five stations. Further, a statistical processing of the data obtained was performed. In particular, for each of the ice seasons we checked the homogeneity of the mean values and of the distribution of samples by stations. Also checked was the distribution matching. A comparative data analysis using methods of mathematical statistics made it possible to describe the spatial variability of the hummocked formations’ keel draft in the Laptev Sea area for separate ice seasons. The “key” points (stations) describing the spatial variability of the hummocked formations’ keel draft for all the ice seasons considered were determined according to the results of the analysis performed, which allows planning further ice draft research using SABS, if required (to determine the necessary number of stations and points of their installation).","PeriodicalId":8391,"journal":{"name":"Arctic, Antarctic, and Alpine Research","volume":"158 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91222998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes in volume and geometry of the Austre Dahlfonna glacier (Spitsbergen island) in 2008–2019 2008-2019年奥地利达尔丰纳冰川(斯匹次卑尔根岛)体积和几何形状的变化
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-12 DOI: 10.30758/0555-2648-2022-68-4-370-383
A. Terekhov, U. Prokhorova, A. L. Borisik, V. Demidov, S. Verkulich
{"title":"Changes in volume and geometry of the Austre Dahlfonna glacier (Spitsbergen island) in 2008–2019","authors":"A. Terekhov, U. Prokhorova, A. L. Borisik, V. Demidov, S. Verkulich","doi":"10.30758/0555-2648-2022-68-4-370-383","DOIUrl":"https://doi.org/10.30758/0555-2648-2022-68-4-370-383","url":null,"abstract":"Previously published geodetic mass balance data indicate glacier shrinkage in the Barentsburg area of Svalbard since the beginning of the 20th century on the decadal time scale. However, observations for shorter time spans allowing one to compute the inter-annual variability of the mass balance are scarce. The study presents results of ground-based GNSS and the GPR surveys of the Austre Dahlfonna glacier (2 sq km) located on Spitsbergen island, south of the town of Barentsburg. According to the GPR survey of spring 2019 at 50 MHz frequency, the area-averaged ice thickness was equal to 82 m, while the maximum was 170 m. The results confirm the polythermal structure of the glacier, with a layer of underlying temperate ice. Since the end of the Little Ice Age, the area of Austre Dahlfonna has halved. By comparing the GNSS survey results (the end of the melt season of 2019) with the co-registered archived remote sensing data (ArcticDEM strip of 2013 and S0 Terrengmodell of 2008), it was computed that, within the last 12 years (2008–2019), Austre Dahlfonna lost 16 % of its volume, which corresponds to a geodetic mass balance of –12.05 ± 0.85 m w. e. The mass loss in 2008–2013 (5.22 ± 0.37 m w. e.) was lower than in 2013–2019 (6.83 ± 0.48 m w. e.), which is in agreement with the ongoing direct measurements on the neighboring Austre Grønfjordbreen glacier and with the archipelago-wide mass-balance patterns. We demonstrate that the less intensive glacier mass loss, which occurred in 2005–2012 and was detected previously for the whole archipelago, definitely took place in the Barentsburg area as well. This time interval is characterized by the prevalence of a negative NAO phase (65 % of recurrence), which may indicate more frequent intrusions of colder Arctic air masses. This fact proves that the mass-balance variability of the Barentsburg area glaciers is governed in time spans of 5–10 years by regional-scale factors, presumably by shifts in the atmospheric circulation regimes.","PeriodicalId":8391,"journal":{"name":"Arctic, Antarctic, and Alpine Research","volume":"133 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89436430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Monitoring of the relief changes in polygonal peat plateaus adjacent to the highway Zapolyarnoe — Tazovsky Zapolyarnoe - Tazovsky高速公路附近多边形泥炭高原地形变化监测
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-12 DOI: 10.30758/0555-2648-2022-68-4-384-405
E. Babkin, E. Babkina, M. Leibman, R. Khayrullin, A. Khomutov
{"title":"Monitoring of the relief changes in polygonal peat plateaus adjacent to the highway Zapolyarnoe — Tazovsky","authors":"E. Babkin, E. Babkina, M. Leibman, R. Khayrullin, A. Khomutov","doi":"10.30758/0555-2648-2022-68-4-384-405","DOIUrl":"https://doi.org/10.30758/0555-2648-2022-68-4-384-405","url":null,"abstract":"The thawing of polygonal ice wedges determines the dynamics of polygonal peatland relief. The polygonal peat plateaus in the Pur-Taz interfluve account for an average of 6,5 % of the total area. The purpose of the proposed study is to establish the short-term rates and direction of change in the plateaus’ relief under the combined action of technogenic and natural factors, using monitoring data for the period 2005–2022. Based on satellite images and orthophotoplans, elements of the peat plateaus have been outlined and their areas have been determined for different time slices. The studies were carried out on a peat plateau immediately adjacent to the highway (T1) and on a background peat plateau at a distance of about 1.5 km from the highway (T2). To identify the natural causes of changes in the relief of the peat plateaus, the influence of climatic parameters is considered. The rates of relief change in natural conditions and under the impact of the highway are also compared. It has been established that in the area to the north-west of the highway the relief of the T1 polygonal peat plateau has stabilized. In the south-east section of T1, degradation has sharply increased after the construction of the highway. Due to the degradation of the polygons, the polygonal troughs expanded. In the background peat plateau T2, the rate of relief degradation is somewhat higher than in the northwestern portion of T1. Comparison of the main climatic parameters and degradation rates of the polygonal relief did not show any clear correlations. Probably, of greater importance are the regime of atmospheric precipitation, the redistribution of surface runoff and recurrence of flooding and drainage of the polygonal troughs, determined by the rhythmic course of the relief degradation.","PeriodicalId":8391,"journal":{"name":"Arctic, Antarctic, and Alpine Research","volume":"199 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79562321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Uncertainty factor in contemporary communities of the Russian Arctic: methodological approaches to research 当代俄罗斯北极社区的不确定性因素:研究的方法论方法
IF 2 4区 地球科学
Arctic, Antarctic, and Alpine Research Pub Date : 2022-12-12 DOI: 10.30758/0555-2648-2022-68-4-420-436
K. Istomin, N. Vakhtin
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