{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T14:49:41Z","timestamp":1771339781929,"version":"3.50.1"},"reference-count":44,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2019,7,9]],"date-time":"2019-07-09T00:00:00Z","timestamp":1562630400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Modern degradation of Arctic permafrost promotes changes in tundra landscapes and leads to degradation of ice wedge polygons, which are the most widespread landforms of Arctic wetlands. Status assessment of polygon degradation is important for various environmental studies. We have applied the geographic information systems\u2019 (GIS) analysis of data from unmanned aerial vehicles (UAV) to accurately assess the status of ice wedge polygon degradation on Samoylov Island. We used several modern models of polygon degradation for revealing polygon types, which obviously correspond to different stages of degradation. Manual methods of mapping and a high spatial resolution of used UAV data allowed for a high degree of accuracy in the identification of all land units. The study revealed the following: 41.79% of the first terrace surface was composed of non-degraded polygonal tundra; 18.37% was composed of polygons, which had signs of thermokarst activity and corresponded to various stages of degradation in the models; and 39.84% was composed of collapsed polygons, slopes, valleys, and water bodies, excluding ponds of individual polygons. This study characterizes the current status of polygonal tundra degradation of the first terrace surface on Samoylov Island. Our assessment reflects the landscape condition of the first terrace surface of Samoylov Island, which is the typical island of the southern part of the Lena Delta. Moreover, the study illustrates the potential of UAV data GIS analysis for highly accurate investigations of Arctic landscape changes.<\/jats:p>","DOI":"10.3390\/rs11131627","type":"journal-article","created":{"date-parts":[[2019,7,10]],"date-time":"2019-07-10T03:05:26Z","timestamp":1562727926000},"page":"1627","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Assessment of the Ice Wedge Polygon Current State by Means of UAV Imagery Analysis (Samoylov Island, the Lena Delta)"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6120-788X","authenticated-orcid":false,"given":"Andrei","family":"Kartoziia","sequence":"first","affiliation":[{"name":"V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, 3 Koptyug ave., 630090 Novosibirsk, Russia"},{"name":"A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, 3 Koptyug ave., 630090 Novosibirsk, Russia"},{"name":"Department of Geology and Geophysics, Novosibirsk State University, 1 Pirogov st., 630090 Novosibirsk, Russia"}]}],"member":"1968","published-online":{"date-parts":[[2019,7,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1111\/j.1654-1103.2005.tb02365.x","article-title":"The circumpolar Arctic vegetation map","volume":"16","author":"Walker","year":"2005","journal-title":"J. Veg."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"French, H.M. (2007). The Periglacial Environment, John Wiley & Sons. [3rd ed.].","DOI":"10.1002\/9781118684931"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"635","DOI":"10.1086\/622281","article-title":"Ground-ice wedges: the dominant form of ground-ice on the north coast of Alaska","volume":"23","author":"Leffingwell","year":"1915","journal-title":"J. Geol."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Lachenbruch, A.H. (1962). Mechanics of thermal contraction cracks and ice-wedge polygons in permafrost. GSA Special Papers, Geological Society of America.","DOI":"10.1130\/SPE70-p1"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"312","DOI":"10.1038\/ngeo2674","article-title":"Pan-Arctic Ice-Wedge Degradation in Warming Permafrost and Its Influence on Tundra Hydrology","volume":"9","author":"Liljedahl","year":"2016","journal-title":"Nat. Geosci."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1089","DOI":"10.5194\/tc-13-1089-2019","article-title":"Pathways of ice-wedge degradation in polygonal tundra under different hydrological conditions","volume":"13","author":"Nitzbon","year":"2019","journal-title":"Cryosphere"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2","DOI":"10.1029\/2005GL024960","article-title":"Abrupt increase in permafrost degradation in Arctic Alaska","volume":"33","author":"Jorgenson","year":"2006","journal-title":"Geophys. Res. Lett."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"20","DOI":"10.1016\/j.geomorph.2017.09.001","article-title":"Degradation and stabilization of ice wedges: implications for assessing risk of thermokarst in Northern Alaska","volume":"297","author":"Kanevskiy","year":"2017","journal-title":"Geomorphology"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2280","DOI":"10.1002\/2015JF003602","article-title":"Role of ground ice dynamics and ecological feedbacks in recent ice wedge degradation and stabilization","volume":"120","author":"Jorgenson","year":"2015","journal-title":"J. Geophys. Res. Earth Surf."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1957","DOI":"10.5194\/tc-12-1957-2018","article-title":"Microtopographic control on the ground thermal regime in ice wedge polygons","volume":"12","author":"Abolt","year":"2018","journal-title":"Cryosphere"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"591","DOI":"10.5194\/tc-13-591-2019","article-title":"Thaw processes in ice-rich permafrost landscapes represented with laterally coupled tiles in a land surface model","volume":"13","author":"Aas","year":"2019","journal-title":"Cryosphere"},{"key":"ref_12","first-page":"41","article-title":"Thermally induced movements in ice-wedge polygons, western arctic coast: A long-term study","volume":"54","author":"Mackay","year":"2000","journal-title":"Geogr. Phys. Quatern."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1612","DOI":"10.1126\/science.1128908","article-title":"Climate change: permafrost and the global carbon budget","volume":"312","author":"Zimov","year":"2006","journal-title":"Science"},{"key":"ref_14","first-page":"1","article-title":"Soil organic carbon pools in the Northern circumpolar permafrost region","volume":"23","author":"Tamocai","year":"2009","journal-title":"Global Biogeochem. Cycles"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"e00171","DOI":"10.1016\/j.geodrs.2018.e00171","article-title":"Carbon stock estimation and changes associated with thermokarst activity, forest disturbance, and land use changes in Eastern Siberia","volume":"14","author":"Iwasaki","year":"2018","journal-title":"Geoderma Reg."},{"key":"ref_16","unstructured":"Anisimov, O., Belolutskaya Grigoriev, A.I., Kokorev, V., Strelchenko, S.A., Streletskiy, D., and Shiklomanov, N. (2010). Major Natural and Social-Economic Consequences of Climate Change in the Permafrost Region: Predictions Based on Observations and Modeling, Greenpeace. (In Russian)."},{"key":"ref_17","unstructured":"Shroder, J.F., and Haeberli, W. (2015). Permafrost Degradation. Snow and Ice-Related Hazards, Risks, and Disasters, Academic Press."},{"key":"ref_18","first-page":"1574","article-title":"Evaluation of the use of very high resolution aerial imagery for accurate ice-wedge polygon mapping (Adventdalen, Svalbard)","volume":"615","author":"Mora","year":"2017","journal-title":"Sci. Total Environ."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1139\/as-2016-0008","article-title":"UAV Photogrammetry for Mapping Vegetation in the Low-Arctic","volume":"2","author":"Fraser","year":"2016","journal-title":"Arct. Sci."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"827","DOI":"10.1139\/as-2018-0016","article-title":"Thaw Slump Activity Measured Using Stationary Cameras in Time-Lapse and Structure-from-Motion Photogrammetry","volume":"4","author":"Armstrong","year":"2018","journal-title":"Arct. Sci."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Van der Sluijs, J., Kokelj, V.S., Fraser, H.R., Tunnicliffe, J., and Lacelle, D. (2018). Permafrost Terrain Dynamics and Infrastructure Impacts Revealed by UAV Photogrammetry and Thermal Imaging. Remote Sens., 10.","DOI":"10.3390\/rs10111734"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Huang, L., Liu, L., Jiang, L., and Zhang, T. (2018). Automatic Mapping of Thermokarst Landforms from Remote Sensing Images Using Deep Learning: A Case Study in the Northeastern Tibetan Plateau. Remote Sens., 10.","DOI":"10.3390\/rs10122067"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"119","DOI":"10.1016\/j.rse.2019.01.030","article-title":"Estimating Fractional Cover of Tundra Vegetation at Multiple Scales Using Unmanned Aerial Systems and Optical Satellite Data","volume":"224","author":"Luoto","year":"2019","journal-title":"Remote Sens. Environ."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Saito, H., Iijima, Y., Basharin, N.I., Fedorov, A.N., and Kunitsky, V.V. (2018). Thermokarst development detected from high-definition topographic data in Central Yakutia. Remote Sens., 10.","DOI":"10.3390\/rs10101579"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1134\/S0097807811010064","article-title":"Mouths of World Rivers in the Atlas of Space Images","volume":"38","author":"Kravtsova","year":"2011","journal-title":"Water Resour."},{"key":"ref_26","unstructured":"Finlayson, C.M., Milton, R., Prentice, C., and Davidson, N.C. (2018). Lena River Delta (Russia). The Wetland Book: II: Distribution, Description, and Conservation, Springer Netherlands."},{"key":"ref_27","unstructured":"Grigoriev, M.N. (1993). Criomorphogenesis in the Lena Delta, Permafrost Institute Press. (In Russian)."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"119","DOI":"10.1016\/S1040-6182(01)00084-2","article-title":"Late Quaternary Sedimentation History of the Lena Delta","volume":"89","author":"Schwamborn","year":"2002","journal-title":"Quat. Int."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"579","DOI":"10.5194\/bg-12-579-2015","article-title":"Lena River Delta Formation during the Holocene","volume":"12","author":"Bolshiyanov","year":"2015","journal-title":"Biogeosciences"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1016\/j.palaeo.2010.10.045","article-title":"Late Quaternary Paleoenvironmental Records from the Western Lena Delta, Arctic Siberia","volume":"299","author":"Schirrmeister","year":"2011","journal-title":"Palaeogeogr. Palaeoclimatol. Palaeoecol."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1080\/789610225","article-title":"Late Quaternary History of the Accumulation Plain North of the Chekanovsky Ridge (Lena Delta, Russia): A Multidisciplinary Approach","volume":"27","author":"Schirrmeister","year":"2003","journal-title":"Polar Geogr."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1523","DOI":"10.1016\/j.quascirev.2008.04.007","article-title":"Palaeoenvironmental Dynamics Inferred from Late Quaternary Permafrost Deposits on Kurungnakh Island, Lena Delta, Northeast Siberia, Russia","volume":"27","author":"Wetterich","year":"2008","journal-title":"Quat. Sci. Rev."},{"key":"ref_33","first-page":"97","article-title":"The temperature of permafrost in the Lena delta basin\u2013deposit conditions and properties of the permafrost in Yakutia","volume":"2","author":"Grigoriev","year":"1960","journal-title":"Yakutsk"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"261","DOI":"10.5194\/essd-11-261-2019","article-title":"A 16-Year Record (2002\u20132017) of Permafrost, Active-Layer, and Meteorological Conditions at the Samoylov Island Arctic Permafrost Research Site, Lena River Delta, Northern Siberia: An Opportunity to Validate Remote-Sensing Data and Land Surface, Snow, and Permafrost Models","volume":"11","author":"Boike","year":"2019","journal-title":"Earth Syst. Sci. Data"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"3507","DOI":"10.5194\/bg-10-3507-2013","article-title":"Organic Carbon and Total Nitrogen Stocks in Soils of the Lena River Delta","volume":"10","author":"Zubrzycki","year":"2013","journal-title":"Biogeosci."},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"Mackay, J.R. (1963). The Mackenzie Delta Area, Queen\u2019s printer. Geographical Branch Memoir, no. 8.","DOI":"10.4095\/329313"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"162","DOI":"10.14430\/arctic3423","article-title":"Tundra relief features near Point Barrow, Alaska","volume":"19","author":"Hussey","year":"1966","journal-title":"Arctic"},{"key":"ref_38","unstructured":"Romanovskiy, N.N. (1977). Formation of Polygonal-Wedge Structures, Nauka SSSR. (In Russian)."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"2241","DOI":"10.5194\/tc-10-2241-2016","article-title":"Modeling the spatiotemporal variability in subsurface thermal regimes across a low-relief polygonal tundra landscape","volume":"10","author":"Kumar","year":"2016","journal-title":"Cryosphere"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"3161","DOI":"10.1002\/2017JG004035","article-title":"Mathematical modelling of Arctic polygonal tundra with Ecosys: 1. Microtopography determines how active layer depths respond to changes in temperature and precipitation","volume":"122","author":"Grant","year":"2017","journal-title":"J. Geophys. Res. Biogeosci."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"61","DOI":"10.5194\/gmd-11-61-2018","article-title":"Impacts of microtopographic snow redistribution and lateral subsurface processes on hydrologic and thermal states in an arctic polygonal ground ecosystem: a case study using ELM-3D v1.0","volume":"11","author":"Bisht","year":"2018","journal-title":"Geosci. Model Dev."},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Root, J.D. (1975). Ice-Wedge Polygons, Tuktoyaktuk Area, North \u2013West Territories, Geology Survey of Canada.","DOI":"10.4095\/104301"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"1","DOI":"10.3402\/tellusb.v64i0.17301","article-title":"Subpixel heterogeneity of ice-wedge polygonal tundra: a multi-scale analysis of land cover and evapotranspiration in the Lena River Delta, Siberia","volume":"64","author":"Muster","year":"2012","journal-title":"Tellus Ser. B Chem. Phys. Meteorol."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"2105","DOI":"10.5194\/bg-10-2105-2013","article-title":"Baseline characteristics of climate, permafrost and land cover from a new permafrost observatory in the Lena River Delta, Siberia (1998\u20132011)","volume":"10","author":"Boike","year":"2013","journal-title":"Biogeosciences"}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/13\/1627\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:03:56Z","timestamp":1760187836000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/13\/1627"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,7,9]]},"references-count":44,"journal-issue":{"issue":"13","published-online":{"date-parts":[[2019,7]]}},"alternative-id":["rs11131627"],"URL":"https:\/\/doi.org\/10.3390\/rs11131627","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,7,9]]}}}