Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 46572 10.2205/2020ES000743 ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Determining dynamics of the Kara Sea coasts usingremote sensing and UAV data: A case study Determining dynamics of the Kara Sea coasts usingremote sensing and UAV data: A case study Novikova A V Novikova A V annamsu17@gmail.com Vergun A P Vergun A P Zelenin E A Zelenin E A Baranskaya A V Baranskaya A V Ogorodov S A Ogorodov S A Geography Faculty, Lomonosov Moscow State University ru Geography Faculty, Lomonosov Moscow State University ru Geography Faculty, Lomonosov Moscow State University ru Geography Faculty, Lomonosov Moscow State University ru Geological Institute, Russian Academy of Science ru Geological Institute, Russian Academy of Science ru Geography Faculty, Lomonosov Moscow State University ru Geography Faculty, Lomonosov Moscow State University ru Geography Faculty, Lomonosov Moscow State University ru Geography Faculty, Lomonosov Moscow State University ru 21 3 29 10 2021 https://ras.editorum.ru/en/nauka/article/46572/view

Studies of Arctic coasts are of great importance given their active dynamics with thetendency to retreat, especially in the last decades under the conditions of global climatewarming and enhanced human impact. Here, we present the results of the first surveysof the Kara Sea coasts with use of such new technique as unmanned aerial vehicles(UAVs). Land surveys using DJI Phantom 4 PRO drone were conducted at two keysites: the Yamal coast of Baydaratskaya Bay in the area of the Bovanenkovo-Ukhtagas pipeline crossing (western Kara Sea) in 2018, and the western coast of Taymyrpeninsula in the area of Dikson settlement, Lemberova Bay (eastern Kara Sea) in2019. The imagery and DEMs built based on the UAV survey data were compared toearlier satellite imagery and ArcticDEMs that allowed estimation of coastal dynamicsfor several periods. Since the 1960s, coasts of the key areas had relatively slow retreat(0.4 m/yr for the Yamal area and 0.1 m/yr for the Taymyr area) compared to othersites of the Kara Sea and the Arctic in general. At the same time, there were higherosion rates at separate segments in certain periods: they reached 2 m/yr at erosionalcoastal segments with ice wedge outcrops, and up to 10 m/yr at low accumulativecoasts in the area of gas facilities in the period of their construction.

Studies of Arctic coasts are of great importance given their active dynamics with thetendency to retreat, especially in the last decades under the conditions of global climatewarming and enhanced human impact. Here, we present the results of the first surveysof the Kara Sea coasts with use of such new technique as unmanned aerial vehicles(UAVs). Land surveys using DJI Phantom 4 PRO drone were conducted at two keysites: the Yamal coast of Baydaratskaya Bay in the area of the Bovanenkovo-Ukhtagas pipeline crossing (western Kara Sea) in 2018, and the western coast of Taymyrpeninsula in the area of Dikson settlement, Lemberova Bay (eastern Kara Sea) in2019. The imagery and DEMs built based on the UAV survey data were compared toearlier satellite imagery and ArcticDEMs that allowed estimation of coastal dynamicsfor several periods. Since the 1960s, coasts of the key areas had relatively slow retreat(0.4 m/yr for the Yamal area and 0.1 m/yr for the Taymyr area) compared to othersites of the Kara Sea and the Arctic in general. At the same time, there were higherosion rates at separate segments in certain periods: they reached 2 m/yr at erosionalcoastal segments with ice wedge outcrops, and up to 10 m/yr at low accumulativecoasts in the area of gas facilities in the period of their construction.

 Arctic coasts Kara Sea UAVs remote sensing coastal erosion Arctic coasts Kara Sea UAVs remote sensing coastal erosion The study has been supported by the Russian Foundation for Basic Research project No 19-35-90116. A. V. Baranskaya participated in the study with the financial support of the Russian Foundation for Basic Research project No 18-05-60300. A. P. Vergun participated in the study with the financial support of the state scientific program of the Laboratory of Geoecology of the North. We thank Dr. V. Fedosov (Faculty of Biology, Lomonosov Moscow State University), D. Koltysheva (Faculty of Biology, Lomonosov Moscow State University), M. Bondar (Zapovedniki Taymyra), I. Kornienko (Zapovedniki Taymyra) and V. Arkhipov (Zubov State Oceanographic Institute) for the arrangement, logistics and all kinds of support during the fieldworks.

Atlas of the Oceans (1980), Arctic Ocean, 184 pp. GUNIO MO USSR Navy Publ., Moscow Atlas of the Oceans (1980), Arctic Ocean, 184 pp. GUNIO MO USSR Navy Publ., Moscow Belova, N. G. (2014), Massive Ice of the Southwestern Coast of the Kara Sea, 180 pp. MAKS Press, Moscow, Russia. (in Russian, ISBN 978-5317-04875-4) Belova, N. G. (2014), Massive Ice of the Southwestern Coast of the Kara Sea, 180 pp. MAKS Press, Moscow, Russia. (in Russian, ISBN 978-5317-04875-4) Belova, N. G., A. V. Novikova, et al. (2020), Spatiotemporal variability of coastal retreat rates at Western Yamal Peninsula, Russia, based on remotely sensed data, Global Coastal Issues of 2020. Journal of Coastal Research, Special Issue No. 95, Malv´arez, G. and Navas, F. (eds.) p. 367-371, Coconut Creek, Florida. (ISSN 0749-0208) Belova, N. G., A. V. Novikova, et al. (2020), Spatiotemporal variability of coastal retreat rates at Western Yamal Peninsula, Russia, based on remotely sensed data, Global Coastal Issues of 2020. Journal of Coastal Research, Special Issue No. 95, Malv´arez, G. and Navas, F. (eds.) p. 367-371, Coconut Creek, Florida. (ISSN 0749-0208) Belova, N. G., N. N. Shabanova, S. A. Ogorodov, et al. (2017), Erosion of permafrost coasts of Kara Sea near Kharasavey Cape, Western Yamal, Earth’s Cryosphere, 21, No. 6, 73-83 Belova, N. G., N. N. Shabanova, S. A. Ogorodov, et al. (2017), Erosion of permafrost coasts of Kara Sea near Kharasavey Cape, Western Yamal, Earth’s Cryosphere, 21, No. 6, 73-83 Dai, C., I. M. Howat (2017), Measuring lava flows with ArcticDEM: Application to the 2012-2013 eruption of Tolbachik, Kamchatka, Geophysical Research Letters, 44, No. 24, 12-133 Dai, C., I. M. Howat (2017), Measuring lava flows with ArcticDEM: Application to the 2012-2013 eruption of Tolbachik, Kamchatka, Geophysical Research Letters, 44, No. 24, 12-133 Dobrovolskiy, A. D., B. S. Zalogin (1982), Seas of the USSR, 192 pp. Publishing house of Moscow State University, Moscow Dobrovolskiy, A. D., B. S. Zalogin (1982), Seas of the USSR, 192 pp. Publishing house of Moscow State University, Moscow Eltner, A., P. Baumgart, et al. (2015), Multitemporal UAV data for automatic measurement of rill and interrill erosion on loess soil, Earth Surface Processes and Landforms, 40, No. 6, 741-755 Eltner, A., P. Baumgart, et al. (2015), Multitemporal UAV data for automatic measurement of rill and interrill erosion on loess soil, Earth Surface Processes and Landforms, 40, No. 6, 741-755 Ershova, E. D., (Ed.) (1989), Geocryology of the USSR. Western Siberia, 453 pp. Nedra, Moscow Ershova, E. D., (Ed.) (1989), Geocryology of the USSR. Western Siberia, 453 pp. Nedra, Moscow Farquharson, L. M., D. H. Mann, et al. (2018), Temporal and spatial variability in coastline response to declining sea-ice in northwest Alaska, Mar. Geol., 404, 71-83 Farquharson, L. M., D. H. Mann, et al. (2018), Temporal and spatial variability in coastline response to declining sea-ice in northwest Alaska, Mar. Geol., 404, 71-83 GEOS (1997), Baydaratskaya Bay Environmental Conditions. The Basic Results of Studies for the Pipeline “Yamal-Center” Underwater Crossing Design, 432 pp. Publishing House “GEOS”, Moscow, Russia. (in Russian, ISBN 5-89118-008-1) GEOS (1997), Baydaratskaya Bay Environmental Conditions. The Basic Results of Studies for the Pipeline “Yamal-Center” Underwater Crossing Design, 432 pp. Publishing House “GEOS”, Moscow, Russia. (in Russian, ISBN 5-89118-008-1) Gonc . alves, J. A., R. Henriques (2015), UAV photogrammetry for topographic monitoring of coastal areas, ISPRS J. Photogramm. Remote Sens., 104, 101-111 Gonc . alves, J. A., R. Henriques (2015), UAV photogrammetry for topographic monitoring of coastal areas, ISPRS J. Photogramm. Remote Sens., 104, 101-111 Grosse, G., L. Schirrmeister, et al. (2005), The use of CORONA images in remote sensing of periglacial geomorphology: An illustration from the NE Siberian coast, Permafr. Periglac. Process, 16, 163-172 Grosse, G., L. Schirrmeister, et al. (2005), The use of CORONA images in remote sensing of periglacial geomorphology: An illustration from the NE Siberian coast, Permafr. Periglac. Process, 16, 163-172 G¨unther, F., G. Grosse, et al. (2017), Repeat terrestrial LIDAR and DEM-based change detection for quantification of extensive thaw subsidence on yedoma uplands, Abstracts of the International Permafrost Conference “Earth’s Cryosphere: Past, Present and Future”, Pushchino, Russia, June 4-8, 2017 p. 110-112, FASO, RF. (http://cryosol.ru/im ages/worksfoto/konfe retsii/perm2017tezisy/Abstract s 2017.pdf) G¨unther, F., G. Grosse, et al. (2017), Repeat terrestrial LIDAR and DEM-based change detection for quantification of extensive thaw subsidence on yedoma uplands, Abstracts of the International Permafrost Conference “Earth’s Cryosphere: Past, Present and Future”, Pushchino, Russia, June 4-8, 2017 p. 110-112, FASO, RF. (http://cryosol.ru/im ages/worksfoto/konfe retsii/perm2017tezisy/Abstract s 2017.pdf) G¨unther, F., P. P. Overduin, et al. (2015), Observing Muostakh disappear: permafrost thaw subsidence and erosion of a ground-ice-rich island in response to arctic summer warming and sea ice reduction, The Cryosphere, 9, No. 1, 151-178 G¨unther, F., P. P. Overduin, et al. (2015), Observing Muostakh disappear: permafrost thaw subsidence and erosion of a ground-ice-rich island in response to arctic summer warming and sea ice reduction, The Cryosphere, 9, No. 1, 151-178 Irrgang, A. M., H. Lantuit, et al. (2018), Variability in rates of coastal change along the Yukon coast, 1951 to 2015, J. Geophys. Res. Earth Surf., 123, 779-800 Irrgang, A. M., H. Lantuit, et al. (2018), Variability in rates of coastal change along the Yukon coast, 1951 to 2015, J. Geophys. Res. Earth Surf., 123, 779-800 Jones, B. M., C. D. Arp, et al. (2009), Increase in the rate and uniformity of coastline erosion in Arctic Alaska, Geophys. Res. Lett., 36, L3503 Jones, B. M., C. D. Arp, et al. (2009), Increase in the rate and uniformity of coastline erosion in Arctic Alaska, Geophys. Res. Lett., 36, L3503 Kamalov, A. M., S. A. Ogorodov, et al. (2006), Coastal and seabed morpholithodynamics of Baydaratskaya Bay at the route of gas pipeline crossing, Earth’s Cryosphere, 3, 3-14. (in Russian) Kamalov, A. M., S. A. Ogorodov, et al. (2006), Coastal and seabed morpholithodynamics of Baydaratskaya Bay at the route of gas pipeline crossing, Earth’s Cryosphere, 3, 3-14. (in Russian) Kizyakov, A. I. (2005), Dynamics of termodunadational processes on the coast of Yugora Peninsula, The Cryosphere of the Earth, 9, No. 1, 63. (in Russian Kizyakov, A. I. (2005), Dynamics of termodunadational processes on the coast of Yugora Peninsula, The Cryosphere of the Earth, 9, No. 1, 63. (in Russian Kizyakov, A. I., M. V. Zimin, et al. (2013), Thermal denudation, thermal abrasion of sea shores, thermocirques, The Cryosphere of the Earth, 17, 36-47 Kizyakov, A. I., M. V. Zimin, et al. (2013), Thermal denudation, thermal abrasion of sea shores, thermocirques, The Cryosphere of the Earth, 17, 36-47 Klemas, V. V. (2015), Coastal and environmental remote sensing from unmanned aerial vehicles: An overview, J. Coast. Res., 31, 1260-1267 Klemas, V. V. (2015), Coastal and environmental remote sensing from unmanned aerial vehicles: An overview, J. Coast. Res., 31, 1260-1267 Koci, J., M. V. Zimin, et al. (2017), Assessment of UAV and ground-based structure from motion with multi-view stereo photogrammetry in a gullied savanna catchment, ISPRS International Journal of Geo-Information, 6, No. 11, 328 Koci, J., M. V. Zimin, et al. (2017), Assessment of UAV and ground-based structure from motion with multi-view stereo photogrammetry in a gullied savanna catchment, ISPRS International Journal of Geo-Information, 6, No. 11, 328 Lantuit, H., D. Atkinson, et al. (2011), Coastal erosion dynamics on the permafrost-dominated Bykovsky Peninsula, north Siberia, 1951-2006, Polar Research, 30, 7341 Lantuit, H., D. Atkinson, et al. (2011), Coastal erosion dynamics on the permafrost-dominated Bykovsky Peninsula, north Siberia, 1951-2006, Polar Research, 30, 7341 Lantuit, H., P. P. Overduin, et al. (2012), The Arctic Coastal Dynamics database. A new classifcation scheme and statistics on arctic permafrost coastlines, Estuaries and Coasts, 35, 383-400 Lantuit, H., P. P. Overduin, et al. (2012), The Arctic Coastal Dynamics database. A new classifcation scheme and statistics on arctic permafrost coastlines, Estuaries and Coasts, 35, 383-400 Mars, J. C., D. W. Houseknecht (2007), Quantitative remote sensing study indicates doubling of coastal erosion rate in past 50 yr along a segment of the Arctic coast of Alaska, Geology, 35, 583-586 Mars, J. C., D. W. Houseknecht (2007), Quantitative remote sensing study indicates doubling of coastal erosion rate in past 50 yr along a segment of the Arctic coast of Alaska, Geology, 35, 583-586 Melnikov, V. P., V. I. Spesivtsev, (eds.) (1995), Engineering-Geological and Geocryological Conditions of the Shelf of the Barents and Kara Seas, 195 pp. Nauka, Novosibirsk Melnikov, V. P., V. I. Spesivtsev, (eds.) (1995), Engineering-Geological and Geocryological Conditions of the Shelf of the Barents and Kara Seas, 195 pp. Nauka, Novosibirsk Novikova, A., N. Belova, et al. (2018), Dynamics of permafrost coasts of Baydaratskaya Bay (Kara Sea) based on multi-temporal remote sensing data, Remote Sensing, 10, No. 9, 1481 Novikova, A., N. Belova, et al. (2018), Dynamics of permafrost coasts of Baydaratskaya Bay (Kara Sea) based on multi-temporal remote sensing data, Remote Sensing, 10, No. 9, 1481 Oblogov, G. E. (2016), Evolution of the cryolithozone of the coast of the Kara Sea during the Late Pleistocene-Holocene, Ph. D. thesis in Geological Science, Institute of the Cryosphere of the Earth, Siberian Department of the Russian Academy of Science, Tyumen. (in Russian) Oblogov, G. E. (2016), Evolution of the cryolithozone of the coast of the Kara Sea during the Late Pleistocene-Holocene, Ph. D. thesis in Geological Science, Institute of the Cryosphere of the Earth, Siberian Department of the Russian Academy of Science, Tyumen. (in Russian) Obu, J., H. Lantuit, et al. (2016), Relation between planimetric and volumetric measurements of permafrost coast erosion: a case study from Herschel 17 of 18 ES3004 novikova et al.: determining dynamics ES3004 Island, western Canadian Arctic, Polar Research, 35, No. 1 Obu, J., H. Lantuit, et al. (2016), Relation between planimetric and volumetric measurements of permafrost coast erosion: a case study from Herschel 17 of 18 ES3004 novikova et al.: determining dynamics ES3004 Island, western Canadian Arctic, Polar Research, 35, No. 1 Ogorodov, S. A. (2005), Human impacts on coastal stability in the Pechora Sea, Geo-Marine Letters, 25, No. 2-3, 190-195 Ogorodov, S. A. (2005), Human impacts on coastal stability in the Pechora Sea, Geo-Marine Letters, 25, No. 2-3, 190-195 Ogorodov, S. A., A. V. Baranskaya, et al. (2016), Coastal Dynamics of the Pechora and Kara Seas Under Changing Climatic Conditions and Human Disturbances, Geogr. Environ. Sustain., 3, 53-73 Ogorodov, S. A., A. V. Baranskaya, et al. (2016), Coastal Dynamics of the Pechora and Kara Seas Under Changing Climatic Conditions and Human Disturbances, Geogr. Environ. Sustain., 3, 53-73 Pizhankova, E. I. (2016), Modern climate change at high latitudes and its influence on the coastal dynamics of the Dmitriy Laptev Strait area, Earth’s Cryosphere, 20, No. 14, 46-59 Pizhankova, E. I. (2016), Modern climate change at high latitudes and its influence on the coastal dynamics of the Dmitriy Laptev Strait area, Earth’s Cryosphere, 20, No. 14, 46-59 Pizhankova, E. I., M. S. Dobrynina (2010), Remote sensing data, coastal dynamics, ice complex, alas complex, thermal abrasion, thermal denudation, Dynamics, 14, No. 4, 66-79 Pizhankova, E. I., M. S. Dobrynina (2010), Remote sensing data, coastal dynamics, ice complex, alas complex, thermal abrasion, thermal denudation, Dynamics, 14, No. 4, 66-79 Romanenko, F. A. (2011), Geomorphological types of low coasts of Yamal and Tazovskiy peninsula and their role in forming of shore deposition, Geology of Marine and Oceans, Proceedings of the XIX International Conference on Marine Geology, 14-18 November 2011, 1 p. 75-79, Publishing House “GEOS”, Moscow, Russia. (in Russian) Romanenko, F. A. (2011), Geomorphological types of low coasts of Yamal and Tazovskiy peninsula and their role in forming of shore deposition, Geology of Marine and Oceans, Proceedings of the XIX International Conference on Marine Geology, 14-18 November 2011, 1 p. 75-79, Publishing House “GEOS”, Moscow, Russia. (in Russian) Romanenko, F., A. Baranskaya, et al. (2015), Lowlying coasts of the western arctic seas: origin, age and modern dynamics, Voprosi Geografii, 140, 275-306. (in Russian) Romanenko, F., A. Baranskaya, et al. (2015), Lowlying coasts of the western arctic seas: origin, age and modern dynamics, Voprosi Geografii, 140, 275-306. (in Russian) Romanenko, F., E. Garankina, O. Shilova (2009), The stratigraphy of recent sediments at western Yamal Peninsula and topography formation in Late Pleistocene and Holocene, Fundamental Problems of Quaternary: Results and Trends of Further Researches. Proceedings of the 6th All-Russian Quaternary Conference, Novosibirsk, Russia, 19-23 October 2009 p. 505-508, Publishing House of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia. (in Russian) Romanenko, F., E. Garankina, O. Shilova (2009), The stratigraphy of recent sediments at western Yamal Peninsula and topography formation in Late Pleistocene and Holocene, Fundamental Problems of Quaternary: Results and Trends of Further Researches. Proceedings of the 6th All-Russian Quaternary Conference, Novosibirsk, Russia, 19-23 October 2009 p. 505-508, Publishing House of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia. (in Russian) Shabanova, N., S. Ogorodov, et al. (2018), Hydrometeorological forcing of Western Russian Arctic coastal dynamics: XX-century history and current state, Geogr. Environ. Sustain., 11, 113-129 Shabanova, N., S. Ogorodov, et al. (2018), Hydrometeorological forcing of Western Russian Arctic coastal dynamics: XX-century history and current state, Geogr. Environ. Sustain., 11, 113-129 Smith, M. W., D. Vericat (2015), From experimental plots to experimental landscapes: topography, erosion and deposition in sub-humid badlands from structure-from-motion photogrammetry, Earth Surface Processes and Landforms, 40, No. 12, 1656- 1671 Smith, M. W., D. Vericat (2015), From experimental plots to experimental landscapes: topography, erosion and deposition in sub-humid badlands from structure-from-motion photogrammetry, Earth Surface Processes and Landforms, 40, No. 12, 1656- 1671 Sovershaev, V., K. Voskresensky, et al. (1998), Development of coastal accumulative forms in permafrost conditions, Dynamics of the Arctic coasts of Russia p. 80-92, Moscow State University, Moscow Sovershaev, V., K. Voskresensky, et al. (1998), Development of coastal accumulative forms in permafrost conditions, Dynamics of the Arctic coasts of Russia p. 80-92, Moscow State University, Moscow Streletskaya, I. D., A. A. Vasiliev, et al. (2009), Erosion of sediment and organic carbon from the Kara Sea coast, Arctic, Antarctic, and Alpine Research, 41, No. 1, 79-87 Streletskaya, I. D., A. A. Vasiliev, et al. (2009), Erosion of sediment and organic carbon from the Kara Sea coast, Arctic, Antarctic, and Alpine Research, 41, No. 1, 79-87 Thieler, E. R., E. A. Himmelstoss, et al. (2009), Digital Shoreline Analysis System (DSAS) version 4.0, An ArcGIS Extension for Calculating Shoreline Change, Open-File Report 2008-1278, U.S. Geological Survey, U.S. (https://pubs.er.usgs.gov/publication /ofr20081278 Thieler, E. R., E. A. Himmelstoss, et al. (2009), Digital Shoreline Analysis System (DSAS) version 4.0, An ArcGIS Extension for Calculating Shoreline Change, Open-File Report 2008-1278, U.S. Geological Survey, U.S. (https://pubs.er.usgs.gov/publication /ofr20081278 Trofimov, V. T., Yu. B. Badu, Yu. K. Vasilchuk (1986), Geotechnical Conditions of the Gydan Peninsula, 212 pp. Publishing House of Moscow State University, Moscow Trofimov, V. T., Yu. B. Badu, Yu. K. Vasilchuk (1986), Geotechnical Conditions of the Gydan Peninsula, 212 pp. Publishing House of Moscow State University, Moscow Vasiliev, A. A., I. D. Streletskaya, et al. (2006), Coastal dynamics of the Kara Sea, Earth’s Cryosphere, 10, No. 2, 56-67 Vasiliev, A. A., I. D. Streletskaya, et al. (2006), Coastal dynamics of the Kara Sea, Earth’s Cryosphere, 10, No. 2, 56-67 VNIIOkeangeologiya (2000), State Geological Map M 1:1,000,000, 1st edition, sheet S44 pp. VNIIOkeangeologiya, Russia VNIIOkeangeologiya (2000), State Geological Map M 1:1,000,000, 1st edition, sheet S44 pp. VNIIOkeangeologiya, Russia