Polar Science最新文献_第7页

Indigenous place names in arctic Canada: A publicly accessible inventory of projects 加拿大北极地区的土著地名：可公开查阅的项目清单

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2023.101002

M. Cecilia Porter , Alyssa Parker , Matthew Walls

{"title":"Indigenous place names in arctic Canada: A publicly accessible inventory of projects","authors":"M. Cecilia Porter , Alyssa Parker , Matthew Walls","doi":"10.1016/j.polar.2023.101002","DOIUrl":"10.1016/j.polar.2023.101002","url":null,"abstract":"<div><p>Toponyms contain Indigenous modes of understanding and reflect ecological histories and deep relationships between Indigenous communities, arctic environments, time, and land. Completed toponymic studies are useful for researchers to access; however, they are notoriously difficult to find. Many are completed by community groups and published on their websites, or are completed by government agencies and published as grey literature. An inventory of toponym projects has not existed, and eliciting what has been completed where, with whom, and by whom has required long searches through academic and grey literature. In this paper, we inventory Indigenous toponymy projects in the Canadian North, and document our efforts to produce a publicly accessible index where toponymy projects can be found via maps. New or unknown resources can be added by users. Our purpose, here, is to document the production of this resource and to increase awareness of toponymical resources among communities, researchers, scientists, and other stakeholders. We reflect on knowledge gained through construction of the index and make observations on trends in Inuit toponym research through time. We argue for renewed efforts across arctic sciences to recognize Inuit-environment relationships through reference to place names and the ecological histories they encapsulate, and we provide considerations for future work.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 101002"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965223001093/pdfft?md5=ed9eab58b0da573897253891f67db510&pid=1-s2.0-S1873965223001093-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135428304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biophysical effects of an old tundra fire in the Brooks Range Foothills of Northern Alaska, U.S.A 美国阿拉斯加北部布鲁克斯山脉山麓老苔原火灾的生物物理效应

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2023.100984

Eric A. Miller , Carson A. Baughman , Benjamin M. Jones , Randi R. Jandt

{"title":"Biophysical effects of an old tundra fire in the Brooks Range Foothills of Northern Alaska, U.S.A","authors":"Eric A. Miller , Carson A. Baughman , Benjamin M. Jones , Randi R. Jandt","doi":"10.1016/j.polar.2023.100984","DOIUrl":"10.1016/j.polar.2023.100984","url":null,"abstract":"<div><p>Our understanding of tundra fire effects in Northern Alaska is limited because fires have been relatively rare. We sampled a 70+ year-old burn visible in a 1948 aerial photograph for vegetation composition and structure, soil attributes, terrain rugosity, and thermokarst pit density. Between 1948 and 2017 the burn initially became wetter as ice wedges melted but then drained and dried as the troughs became hydrologically connected. The reference tundra has become wetter over the last few decades and appears to be lagging through a similar sequence. The burn averaged 2.5 °C warmer than the reference tundra at 30 cm depth. Thinning of organic soil following fire appears to dramatically accelerate the background degradation of ground-ice features in response to climate change and promotes a plant community that is distinct in terms of taxa and structure, dominated by tall willows and other competitive, rather than cold-tolerant, species. The cover of sedges and mosses is low while that of willows and grass is high relative to the reference tundra. The changes in plant community composition and structure, increasing ground temperature, and thermokarst lead us to expect the observed biophysical changes to the tundra will persist centuries into the future.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 100984"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965223000828/pdfft?md5=96a8f7b412004deab43880eae8ab1831&pid=1-s2.0-S1873965223000828-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135255194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scientific research and collaboration in Antarctica: Türkiye's engagement from a science diplomacy perspective 南极洲的科学研究与合作：从科学外交的角度看土耳其的参与

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2023.101035

Derya Buyuktanir Karacan , Burcu Ozsoy , Dilara Zengin Okay

{"title":"Scientific research and collaboration in Antarctica: Türkiye's engagement from a science diplomacy perspective","authors":"Derya Buyuktanir Karacan , Burcu Ozsoy , Dilara Zengin Okay","doi":"10.1016/j.polar.2023.101035","DOIUrl":"10.1016/j.polar.2023.101035","url":null,"abstract":"<div><p>The Antarctic Peninsula is one of the most affected regions by global climate change, requiring a multinational and collaborative effort of concerted actions guided by scientific principles. Science diplomacy has been embraced by policymakers and various stakeholders as a promising approach in international and global politics to tackle this issue and manage Antarctica's governance peacefully through science and diplomacy. The Antarctic Treaty System has been accepted as a model for international cooperation among the countries interested in Antarctic science and governance for many years. However, with the profound changes in the Antarctic Peninsula landscape in recent years due to global climate change, an increasing number of nations with various motivations have been more eager to secure a place at the table regarding the governance of Antarctica, which has become a vital agenda. Scientific research and collaboration have been among the most effective ways for most countries to show their presence in/for the region. This study aims to emphasize the increasing importance of Antarctica from a Science Diplomacy perspective and discuss Türkiye's recent policies and initiatives as an emerging market economy and a potential model for developing countries to engage in scientific research and collaboration in Antarctica from the same perspective.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 101035"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965223001494/pdfft?md5=9c66e1258b46df8a34797a5563763606&pid=1-s2.0-S1873965223001494-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139056420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soundscape during summer in Kongsfjorden, Svalbard, Arctic 北极斯瓦尔巴群岛康斯峡湾夏季声景

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2023.101005

Sunil Kumar Mohanta , M.C. Sanjana , G. Latha , E. Arunbabu

{"title":"Soundscape during summer in Kongsfjorden, Svalbard, Arctic","authors":"Sunil Kumar Mohanta , M.C. Sanjana , G. Latha , E. Arunbabu","doi":"10.1016/j.polar.2023.101005","DOIUrl":"10.1016/j.polar.2023.101005","url":null,"abstract":"<div><p>This paper summarises research on ambient noise data collected during the summers of 2016 and 2017 by an autonomous Ambient Noise Measurement System (ANMS) deployed in the Kongsfjorden, Arctic. The primary goals of this study are to identify the various soundscape components and the variation of the soundscape in the Arctic environment during the summers of 2016 and 2017. This work mainly quantifies the ambient noise sources during each month of the summer. After analysing the data, five distinct sources of soundscape were identified, out of which three geophysical sources, including iceberg bubbling, glacier calving, and rain noise, as well as two anthropogenic sources, such as shipping noise and ice ramming noise, were identified. No biological sources were identified either in the summer of 2016 or in 2017. A comparison of average Sound Pressure Levels (SPL) in the summers of 2016 and 2017 shows that the difference in average SPL below 8 kHz is 3 dB re 1 μPa<sup>2</sup>/Hz.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 101005"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965223001123/pdfft?md5=3bf6c1bf37234a51868c416c1564d6b2&pid=1-s2.0-S1873965223001123-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135607340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Critical seasonal conditions in the reindeer-herding year: A synopsis of factors and events in Fennoscandia and northwestern Russia 驯鹿放牧年的关键季节条件:芬诺斯坎迪亚和俄罗斯西北部的因素和事件摘要

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2023.101016

Roza Laptander , Tim Horstkotte , Joachim Otto Habeck , Sirpa Rasmus , Teresa Komu , Heidrun Matthes , Hans Tømmervik , Kirill Istomin , Jussi T. Eronen , Bruce C. Forbes

{"title":"Critical seasonal conditions in the reindeer-herding year: A synopsis of factors and events in Fennoscandia and northwestern Russia","authors":"Roza Laptander , Tim Horstkotte , Joachim Otto Habeck , Sirpa Rasmus , Teresa Komu , Heidrun Matthes , Hans Tømmervik , Kirill Istomin , Jussi T. Eronen , Bruce C. Forbes","doi":"10.1016/j.polar.2023.101016","DOIUrl":"10.1016/j.polar.2023.101016","url":null,"abstract":"<div><p>In this article, we identify what herders in Fennoscandia and northwestern Russia see as critical conditions and events in the annual reindeer herding cycle. Indigenous Sámi and Yamal reindeer herders identify eight seasons, each of which has crucial importance in its own way. Differences in perception between Fennoscandian and northwestern Russian reindeer herders about good and bad seasonal conditions are based on the degree of climatic and geographic variation, herd control and the variety of simultaneous pressures on pastures. The scope and speed of ongoing climate change in the Arctic will profoundly modify these conditions, and consequently shape critical events and outcomes in reindeer herding. The resulting challenges need to be assessed in the context of social and economic dynamics. Reindeer herders throughout Fennoscandia and Russia are concerned about future prospects of their livelihood. To adapt to climate change and develop new strategies, reindeer herders must have access to pastures; they must retain their mobility and flexibility; and their participation in land-use decisions must be endorsed.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 101016"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965223001238/pdfft?md5=1515435dbe1baf705e523963c62c77ab&pid=1-s2.0-S1873965223001238-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138510085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterizing Antarctic air-breathing predator dive patterns on a common prey base from stationary echosounders 利用固定回声探测仪在一个共同的猎物基地上描绘南极呼吸式捕食者的潜水模式

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2023.100974

Pavanee Annasawmy , John K. Horne , Christian S. Reiss , Gavin J. Macaulay

{"title":"Characterizing Antarctic air-breathing predator dive patterns on a common prey base from stationary echosounders","authors":"Pavanee Annasawmy , John K. Horne , Christian S. Reiss , Gavin J. Macaulay","doi":"10.1016/j.polar.2023.100974","DOIUrl":"10.1016/j.polar.2023.100974","url":null,"abstract":"<div><p>Diving patterns of air-breathing predators were monitored from three moored subsurface upward-looking echosounders. Complete and partial dive profiles were visible on active acoustic records as echoes that started and/or returned to the surface. Dive metrics: maximum dive depths, durations, and wiggle count were measured and angles, distances, and velocities, were calculated at each site. Dive shapes ‘U’, ‘V’ and ‘W’ were derived using the number of wiggles and the percentage of dive bottom time. Dive profiles were classified into four types with type 1 dives being short in total duration and distance, low velocities, small angles, shallow, and linked to ‘U’ and ‘W’ shapes. Type 2 dives were short in distance, had low velocities, shallow depths, and were linked to ‘V’ dives. Dive types 3 and 4 had higher velocities, larger angles, longer total durations, and were deeper than types 1 and 2. Observed dive types could correspond to travelling, exploring, and foraging predator behaviors. Significant predator-prey overlaps occurred with predator dive profile counts correlated with krill aggregation thickness, density, and depth. This study demonstrates the utility of using stationary active acoustics to identify predator dive profiles with a simultaneous characterization of the potential prey field.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 100974"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965223000725/pdfft?md5=41fc6494f7d29de28a606a26371056ee&pid=1-s2.0-S1873965223000725-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46997141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconstruct the AMSR-E/2 thin ice thickness algorithm to create a long-term time series of sea-ice production in Antarctic coastal polynyas 重建AMSR-E/2薄冰厚度算法，建立南极海岸冰融区海冰生成的长期时间序列

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2023.100978

Sohey Nihashi , Kay I. Ohshima , Takeshi Tamura

{"title":"Reconstruct the AMSR-E/2 thin ice thickness algorithm to create a long-term time series of sea-ice production in Antarctic coastal polynyas","authors":"Sohey Nihashi , Kay I. Ohshima , Takeshi Tamura","doi":"10.1016/j.polar.2023.100978","DOIUrl":"10.1016/j.polar.2023.100978","url":null,"abstract":"<div><p>This study presented an extended time series of ice production in Antarctic coastal polynyas for 20 years of 2002–21 using high spatial resolution satellite data from passive microwave sensors: the Advanced Microwave Scanning Radiometer for EOS (AMSR-E) and the Advanced Microwave Scanning Radiometer 2 (AMSR2). For this, we reconstructed the previously presented thin ice thickness algorithms and re-estimated ice production by replacing atmospheric input data for the heat flux calculations with the newly released ECMWF Reanalysis v5 (ERA5). The consistency of ice production between AMSR-E and AMSR2, whose operation periods do not overlap, was confirmed from comparisons with ice production by the Special Sensor Microwave/Imager (SSM/I) and the Special Sensor Microwave Imager Sounder (SSMIS) with relatively coarse spatial resolution. The open ocean area, which cannot be detected from the thin ice thickness algorithm, was defined using sea-ice concentration (SIC) from AMSR-E and AMSR2. The satellite derived SIC has been suggested to be underestimated in the new thin ice (polynya) area. The effect of the underestimation on the ice production estimation was evaluated. The underestimation of SIC from three major algorithms was also investigated from comparisons with the thin ice thickness presented in this study. The coastal polynya dataset covering 20 years with the higher spatial resolution presented in this study is vital for climate-change-related studies.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 100978"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965223000762/pdfft?md5=8c0ddd9a59863f7e45824e8733125115&pid=1-s2.0-S1873965223000762-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46740867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal germination characteristics of three High Arctic plants: Implications for their response to climate warming 三种北极高纬度植物的热发芽特性：它们对气候变暖反应的影响

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2024.101045

Soshi Osaki , Masaki Uchida , Takayuki Nakatsubo

{"title":"Thermal germination characteristics of three High Arctic plants: Implications for their response to climate warming","authors":"Soshi Osaki , Masaki Uchida , Takayuki Nakatsubo","doi":"10.1016/j.polar.2024.101045","DOIUrl":"10.1016/j.polar.2024.101045","url":null,"abstract":"<div><p>Although temperature plays a crucial role in governing seed reproduction in High Arctic plants, little is known about the germination response of these plants to climate warming. We conducted a germination experiment to examine the thermal germination characteristics of three common High Arctic plant species in Svalbard: <em>Dryas octopetala</em>, <em>Oxyria digyna</em>, and <em>Salix polaris</em>. We exposed the seeds to two temperature regimes: gradually increasing and decreasing temperatures between 4 and 15 °C. Additionally, we measured the ground surface temperatures at the study site. All three High Arctic plant species exhibited no specific temperature requirements for germination, with minimum germination temperatures falling within the range of 4–8 °C. Based on the ground surface temperature data, the period during which the weekly average ground surface temperature exceeded this minimum germination temperature range (period available for germination) spanned from mid-June to mid-August. By simulating a warming scenario of 2 and 4 °C, we estimated that the onset of the period available for germination would advance by 1–2 and 2–3 weeks, respectively. Furthermore, our results suggest the possibility of autumn germination in the High Arctic region under future warming conditions.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 101045"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965224000021/pdfft?md5=6b6d4bb0374b410db31ed6503f7bb570&pid=1-s2.0-S1873965224000021-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139103929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation of crude oil slick on ice infested sea water 模拟受冰侵袭海水上的原油漂浮层

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2023.101007

Hosseinreza Abbasi, Raed Lubbad

{"title":"Simulation of crude oil slick on ice infested sea water","authors":"Hosseinreza Abbasi, Raed Lubbad","doi":"10.1016/j.polar.2023.101007","DOIUrl":"10.1016/j.polar.2023.101007","url":null,"abstract":"<div><p>A three-dimensional numerical model based on the smoothed particle hydrodynamics (SPH) method is utilized to model such interactions. The effects from air and water are well captured using suitable force components and without explicit inclusion of air and water phases. This reduces the four-phase SPH model into a two-phase model, significantly reducing computational costs and potentially enabling the use of this model for large-scale simulations. This study includes two simulation domain size. The results show that the remained oil slick in the icy domain is completely depend on properties of different crude oils and current velocity. Then we performed a numerical experiment to study the effects of different ice parameters (e.g., ice concentration, floe shape) on the drift of fresh and weathered oil. Ice fields with the size of 750 m <span><math><mo>×</mo></math></span> 1350 m are used in the experiment. The ice concentration varies between 30%, 50% and 70%. Quadrilateral and circular ice floes, in addition to real-shape floes digitize from an aerial image are all used in the experiment. Oil spills of 1257 <span><math><msup><mrow><mi>m</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span> are released in the open water and later drift into the ice under the influence of steady current of 50 <span><math><mfrac><mrow><mi>cm</mi></mrow><mrow><mi>s</mi></mrow></mfrac></math></span>. The type of spilled crude oil varies from fresh Troll B, Troll B 250 °C, and Troll B 250 °C and 75%emuls. The behavior of oil spills while crossing through the ice infested area are investigated by measuring the thickness of crude oil, the average and maximum distance traveled by crude oil.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 101007"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965223001147/pdfft?md5=8e4c97597217c98cbc1331cabb207b54&pid=1-s2.0-S1873965223001147-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136010030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Himalayan glacier thickness mapper (HIGTHIM) tool: An automated approach to map potential glacier lakes and expansion of existing lakes 喜马拉雅冰川厚度绘图工具（HIGTHIM）：绘制潜在冰川湖泊和现有湖泊扩展图的自动方法

IF 1.8 4区地球科学

Polar Science Pub Date : 2024-03-01 DOI: 10.1016/j.polar.2023.101008

Pradeep Srinivasalu , Anil V. Kulkarni , S.N. Remya , Tejal Shirsat , Ajanta Goswami

{"title":"Himalayan glacier thickness mapper (HIGTHIM) tool: An automated approach to map potential glacier lakes and expansion of existing lakes","authors":"Pradeep Srinivasalu , Anil V. Kulkarni , S.N. Remya , Tejal Shirsat , Ajanta Goswami","doi":"10.1016/j.polar.2023.101008","DOIUrl":"10.1016/j.polar.2023.101008","url":null,"abstract":"<div><p>Climate warming is the driving force behind the mass change of glaciers, resulting in their thinning and retreat. These changes could result in the formation of glacial lakes across the Himalayan landscape, posing a risk of glacial lake outburst flood (GLOF) hazards, causing enormous damage to the natural environment, human property, and lives. The present study demonstrates a semi-automated tool named 'Himalayan Glacier Thickness Mapper' (HIGTHIM), a Python script based on the ArcPy module. The tool provides the glacier's ice thickness, bed topography, location of the potential lake, and lake volume. It utilizes the laminar flow equation to model ice thickness by applying the surface velocity and slope. We used HIGTHIM in the Sutlej and Beas basins for 132 glaciers covering an area of 618 km<sup>2</sup> in the Western Himalaya for this investigation. The results indicate 118 potential lake sites covering a total area of 16 km<sup>2</sup> and a volume of 269 × 10<sup>6</sup> m<sup>3</sup>. The information provided by the HIGTHIM tool will be useful in understanding the formation and progression of future glacial lakes caused by deglaciation. Such data is required for the scientific community to perform dynamic modelling of outburst scenarios, hydrological modelling, and risk mitigation from GLOF.</p></div>","PeriodicalId":20316,"journal":{"name":"Polar Science","volume":"39 ","pages":"Article 101008"},"PeriodicalIF":1.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1873965223001159/pdfft?md5=a2b5a2799cc70936dd27a3e98a3dfc98&pid=1-s2.0-S1873965223001159-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135922033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0