{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T15:08:48Z","timestamp":1774278528115,"version":"3.50.1"},"reference-count":83,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2022,2,21]],"date-time":"2022-02-21T00:00:00Z","timestamp":1645401600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005375","name":"Latvian Council of Science","doi-asserted-by":"publisher","award":["lzp-2020\/2-0279"],"award-info":[{"award-number":["lzp-2020\/2-0279"]}],"id":[{"id":"10.13039\/501100005375","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005414","name":"University of Latvia","doi-asserted-by":"publisher","award":["AAp2016\/B041\/\/Zd2016\/AZ03"],"award-info":[{"award-number":["AAp2016\/B041\/\/Zd2016\/AZ03"]}],"id":[{"id":"10.13039\/501100005414","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Science Centre, Poland","award":["2017\/25\/B\/ST10\/00540"],"award-info":[{"award-number":["2017\/25\/B\/ST10\/00540"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Unmanned Aerial Vehicles (UAVs) are being increasingly used in glaciology demonstrating their potential for the generation of high-resolution digital elevation models (DEMs) that can be further used for the evaluation of glacial processes in detail. Such investigations are especially important for the evaluation of surface changes of small valley glaciers, which are not well-represented in lower-resolution satellite-derived products. In this study, we performed two UAV surveys at the end of the ablation season in 2019 and 2021 on Waldemarbreen, a High-Arctic glacier in NW Svalbard. We derived the mean annual glacier surface velocity of 5.3 m. The estimated mean glacier surface elevation change from 2019 to 2021 was \u22121.46 m a\u22121 which corresponds to the geodetic mass balance (MB) of \u22121.33 m w.e. a\u22121. The glaciological MB for the same period was \u22121.61 m w.e. a\u22121. Our survey includes all Waldemarbreen and demonstrates the efficiency of high-resolution DEMs produced from UAV photogrammetry for the reconstruction of changes in glacier surface elevation and velocity. We suggest that glaciological and geodetic MB methods should be used complementary to each other.<\/jats:p>","DOI":"10.3390\/rs14041029","type":"journal-article","created":{"date-parts":[[2022,2,21]],"date-time":"2022-02-21T20:48:41Z","timestamp":1645476521000},"page":"1029","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Surface Characteristics, Elevation Change, and Velocity of High-Arctic Valley Glacier from Repeated High-Resolution UAV Photogrammetry"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4523-1537","authenticated-orcid":false,"given":"Kristaps","family":"Lamsters","sequence":"first","affiliation":[{"name":"Faculty of Geography and Earth Sciences, Polar Research Center, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4457-0016","authenticated-orcid":false,"given":"Jurijs","family":"Je\u0161kins","sequence":"additional","affiliation":[{"name":"Faculty of Geography and Earth Sciences, Polar Research Center, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5983-7049","authenticated-orcid":false,"given":"Ireneusz","family":"Sobota","sequence":"additional","affiliation":[{"name":"Faculty of Earth Sciences and Spatial Management, Department of Hydrology and Water Management, Polar Research Center, Nicolaus Copernicus University in Toru\u0144, Lwowska 1, 87-100 Toru\u0144, Poland"}]},{"given":"J\u0101nis","family":"Karu\u0161s","sequence":"additional","affiliation":[{"name":"Faculty of Geography and Earth Sciences, Polar Research Center, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia"}]},{"given":"P\u0113teris","family":"D\u017eeri\u0146\u0161","sequence":"additional","affiliation":[{"name":"Faculty of Geography and Earth Sciences, Polar Research Center, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Cao, B., Guan, W., Li, K., Pan, B., and Sun, X. (2021). High-Resolution Monitoring of Glacier Mass Balance and Dynamics with Unmanned Aerial Vehicles on the Ningchan No. 1 Glacier in the Qilian Mountains, China. Remote Sens., 13.","DOI":"10.3390\/rs13142735"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"F01008","DOI":"10.1029\/2008JF001223","article-title":"Svalbard glacier elevation changes and contribution to sea level rise","volume":"115","author":"Nuth","year":"2010","journal-title":"J. Geophys. Res. Earth Surf."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"27","DOI":"10.2478\/bgeo-2010-0002","article-title":"Recession of Kaffi\u00f8yra region glaciers, Oscar II land, Svalbard","volume":"3","author":"Sobota","year":"2010","journal-title":"Bull. Geogr. Phys. Geogr. Ser."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"182","DOI":"10.1016\/j.gloplacha.2016.07.006","article-title":"Long-term changes of glaciers in north-western Spitsbergen","volume":"144","author":"Sobota","year":"2016","journal-title":"Glob. Planet Change"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"313","DOI":"10.1017\/jog.2020.10","article-title":"Glacier change in Norway since the 1960s\u2014An overview of mass balance, area, length and surface elevation changes","volume":"66","author":"Andreassen","year":"2020","journal-title":"J. Glaciol."},{"key":"ref_6","unstructured":"Andreassen, L.M. (2021). Monitoring Glaciers in Mainland Norway and Svalbard Using Sentinel, NVE Rapport 3\u20132021."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"156","DOI":"10.3389\/feart.2020.00156","article-title":"Reconciling Svalbard Glacier Mass Balance","volume":"8","author":"Schuler","year":"2020","journal-title":"Front. Earth Sci."},{"key":"ref_8","unstructured":"Zemp, M., G\u00e4rtner-Roer, I., Nussbaumer, S.U., Bannwart, J., Rastner, P., Paul, F., and Hoelzle, M. (2020). Global Glacier Change Bulletin No. 3 (2016\u20132017), World Glacier Monitoring Service. 2020, Updated, and Earlier Reports; ISC(WDS)\/IUGG(IACS)\/UNEP\/UNESCO\/WMO."},{"key":"ref_9","unstructured":"Masson-Delmotte, V., Zhai, P., Pirani, A., Connors, S.L., P\u00e9an, C., Berger, S., Caud, N., Chen, Y., Goldfarb, L., and Gomis, M.I. (2021). Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1038\/ngeo1052","article-title":"Regionally differentiated contribution of mountain glaciers and ice caps to future sea-level rise","volume":"4","author":"Hock","year":"2011","journal-title":"Nat. Geosci."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"525","DOI":"10.5194\/tc-9-525-2015","article-title":"Surface elevation and mass changes of all Swiss glaciers 1980\u20132010","volume":"9","author":"Fischer","year":"2015","journal-title":"Cryosphere"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Bash, E.A., Moorman, B.J., and Gunther, A. (2018). Detecting Short-Term Surface Melt on an Arctic Glacier Using UAV Surveys. Remote Sens., 10.","DOI":"10.3390\/rs10101547"},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Rees, W.G. (2006). Remote Sensing of Snow and Ice, CRC Press. [1st ed.].","DOI":"10.1201\/9780367801069"},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Pellikka, P., and Rees, W.G. (2009). Remote Sensing of Glaciers. Techniques for Topographic, Spatial and Thematic Mapping of Glaciers, Taylor & Francis Group.","DOI":"10.1201\/b10155"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"19","DOI":"10.5194\/esurf-9-19-2021","article-title":"Measurement of rock glacier surface change over different timescales using terrestrial laser scanning point clouds","volume":"9","author":"Ulrich","year":"2021","journal-title":"Earth Surf. Dyn."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"470","DOI":"10.1016\/j.polar.2016.05.003","article-title":"Detailed subglacial topography and drumlins at the marginal zone of M\u00falaj\u00f6kull outlet glacier, central Iceland: Evidence from low frequency GPR data","volume":"10","author":"Lamsters","year":"2016","journal-title":"Polar Sci."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Ewertowski, M.W., Tomczyk, A.M., Evans, D.J.A., Roberts, D.H., and Ewertowski, M.W. (2019). Operational Framework for Rapid, Very-high Resolution Mapping of Glacial Geomorphology Using Low-cost Unmanned Aerial Vehicles and Structure-from-Motion Approach. Remote Sens., 11.","DOI":"10.3390\/rs11010065"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1415","DOI":"10.1080\/01431160210153039","article-title":"ERS tandem InSAR processing for DEM generation, glacier motion estimation and coherence analysis on Svalbard","volume":"24","author":"Eldhuset","year":"2003","journal-title":"Int. J. Remote Sens."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"156","DOI":"10.1016\/j.epsl.2011.04.026","article-title":"Ice velocity determined using conventional and multiple-aperture InSAR","volume":"307","author":"Gourmelen","year":"2011","journal-title":"Earth Planet. Sci. Lett."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.rse.2015.07.012","article-title":"A processing system to monitor Greenland outlet glacier velocity variations at decadal and seasonal time scales utilizing the Landsat imagery","volume":"169","author":"Rosenau","year":"2015","journal-title":"Remote Sens. Environ."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"795","DOI":"10.5194\/tc-13-795-2019","article-title":"Extracting recent short-term glacier velocity evolution over southern Alaska and the Yukon from a large collection of Landsat data","volume":"13","author":"Altena","year":"2019","journal-title":"Cryosphere"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"181","DOI":"10.3189\/172756403781815762","article-title":"Intra-annual and intra-seasonal flow dynamics of a High Arctic polythermal valley glacier","volume":"37","author":"Bingham","year":"2003","journal-title":"Ann. Glaciol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"337","DOI":"10.3189\/172756503781830656","article-title":"Links between short-term velocity variations and the subglacial hydrology of a predominantly cold polythermal glacier","volume":"49","author":"Copland","year":"2003","journal-title":"J. Glaciol."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"54","DOI":"10.3189\/1998AoG27-1-54-60","article-title":"Comparison between glacier ice velocities inferred from GPS and sequential satellite images","volume":"27","author":"Frezzotti","year":"1998","journal-title":"Ann. Glaciol."},{"key":"ref_25","first-page":"1031","article-title":"Ice velocities of the Lambert Glacier from static GPS observations","volume":"52","author":"Manson","year":"2000","journal-title":"EPS"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1111\/geoa.12127","article-title":"Recent speed-up of an alpine rock glacier: An updated chronology of the kinematics of outer hochebenkar rock glacier based on geodetic measurements","volume":"98","author":"Hartl","year":"2016","journal-title":"Geogr Ann. A"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1017\/S0032247407006419","article-title":"Mass balance and dynamics of a valley glacier measured by high-resolution LiDAR","volume":"43","author":"Rees","year":"2007","journal-title":"Polar Rec."},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Telling, J.W., Glennie, C., Fountain, A.G., and Finnegan, D.C. (2017). Analyzing glacier surface motion using LiDAR data. Remote Sens., 9.","DOI":"10.3390\/rs9030283"},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Bodin, X., Thibert, E., Sanchez, O., Rabatel, A., and Jaillet, S. (2018). Multi-annual kinematics of an active rock glacier quantified from very high-resolution DEMs: An application-case in the French Alps. Remote Sens., 10.","DOI":"10.3390\/rs10040547"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"955","DOI":"10.5194\/tc-13-955-2019","article-title":"High-accuracy UAV photogrammetry of ice sheet dynamics with no ground control","volume":"13","author":"Chudley","year":"2019","journal-title":"Cryosphere"},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Karu\u0161s, J., Lamsters, K., Je\u0161kins, J., Sobota, I., and D\u017eeri\u0146\u0161, P. (2022). UAV and GPR Data Integration in Glacier Geometry Reconstruction: A Case Study from Irenebreen, Svalbard. Remote Sens., 14.","DOI":"10.3390\/rs14030456"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Karu\u0161s, J., Lamsters, K., Sobota, I., Je\u0161kins, J., D\u017eeri\u0146\u0161, P., and Hodson, A. (2021). Drainage system and thermal structure of a High Arctic polythermal glacier: Waldemarbreen, western Svalbard. J. Glaciol., 1\u201314.","DOI":"10.3390\/rs14041029"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"332","DOI":"10.1017\/S0954102019000452","article-title":"Subglacial topography and thickness of ice caps on the Argentine Islands","volume":"31","author":"Lamsters","year":"2019","journal-title":"Antarct. Sci."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"335","DOI":"10.1080\/17445647.2020.1748130","article-title":"High-resolution orthophoto map and digital surface models of the largest Argentine Islands (the Antarctic) from unmanned aerial vehicle photogrammetry","volume":"16","author":"Lamsters","year":"2020","journal-title":"J. Maps"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"100566","DOI":"10.1016\/j.polar.2020.100566","article-title":"The thermal structure, subglacial topography and surface structures of the NE outlet of Eyjabakkaj\u00f6kull, east Iceland","volume":"26","author":"Lamsters","year":"2020","journal-title":"Polar Sci."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"757","DOI":"10.5194\/isprs-annals-V-2-2020-757-2020","article-title":"High-Resolution Surface and Bed Topography Mapping of Russell Glacier (SW Greenland) Using UAV and GPR","volume":"2","author":"Lamsters","year":"2020","journal-title":"ISPRS Ann. Photogramm. Remote Sens. Spat. Inf. Sci."},{"key":"ref_37","first-page":"131","article-title":"Application of Unmanned Aerial Vehicles for Glacier Research in the Arctic and Antarctic","volume":"Volume 1","author":"Lamsters","year":"2019","journal-title":"Environment. Technologies. Resources, Proceedings of the 12th International Scientific and Practical Conference, Rezekne, Latvia, 20\u201322 June 2019"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"408","DOI":"10.1016\/j.rse.2013.07.043","article-title":"The glaciers climate change initiative: Methods for creating glacier area, elevation change and velocity products","volume":"162","author":"Paul","year":"2015","journal-title":"Remote Sens. Environ."},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"B\u0142aszczyk, M., Ignatiuk, D., Grabiec, M., Kolondra, L., Laska, M., Decaux, L., Jania, J., Berthier, E., Luks, B., and Barzycka, B. (2019). Quality assessment and glaciological applications of digital elevation models derived from space-borne and aerial images over two tidewater glaciers of southern Spitsbergen. Remote Sens., 11.","DOI":"10.3390\/rs11091121"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1016\/j.isprsjprs.2017.04.019","article-title":"The Surface Extraction from TIN based Search-space Minimization (SETSM) algorithm","volume":"129","author":"Noh","year":"2017","journal-title":"ISPRS J. Photogramm. Remote Sens."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"198","DOI":"10.1080\/15481603.2015.1008621","article-title":"Automated stereo-photogrammetric DEM generation at high latitudes: Surface Extraction with TIN-based Search-space Minimization (SETSM) validation and demonstration over glaciated regions","volume":"52","author":"Noh","year":"2015","journal-title":"GISci. Remote Sens."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"360","DOI":"10.1111\/bor.12160","article-title":"Surge dynamics of Aavatsmarkbreen, Svalbard, inferred from the geomorphological record","volume":"45","author":"Sobota","year":"2016","journal-title":"Boreas"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"107620","DOI":"10.1016\/j.geomorph.2021.107620","article-title":"Applications of unmanned aerial vehicle (UAV) surveys and Structure from Motion photogrammetry in glacial and periglacial geomorphology","volume":"378","author":"Ewertowski","year":"2021","journal-title":"Geomorphology"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"103","DOI":"10.3189\/2016AoG71A072","article-title":"Seasonal surface velocities of a Himalayan glacier derived by automated correlation of unmanned aerial vehicle imagery","volume":"57","author":"Kraaijenbrink","year":"2016","journal-title":"Ann. Glaciol."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1016\/j.geomorph.2017.12.039","article-title":"Rapid melting dynamics of an alpine glacier with repeated UAV photogrammetry","volume":"304","author":"Rossini","year":"2018","journal-title":"Geomorphology"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1017\/jog.2021.37","article-title":"Combining UAV and Landsat data to assess glacier changes on the central Tibetan Plateau","volume":"67","author":"Xue","year":"2021","journal-title":"J. Glaciol."},{"key":"ref_47","doi-asserted-by":"crossref","unstructured":"Wang, P., Li, H., Li, Z., Liu, Y., Xu, C., Mu, J., and Zhang, H. (2021). Seasonal Surface Change of Urumqi Glacier No. 1, Eastern Tien Shan, China, Revealed by Repeated High-Resolution UAV Photogrammetry. Remote Sens., 13.","DOI":"10.3390\/rs13173398"},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"196","DOI":"10.1016\/j.rse.2015.12.029","article-title":"UAVs as remote sensing platform in glaciology: Present applications and future prospects","volume":"175","author":"Bhardwaj","year":"2016","journal-title":"Remote Sens. Environ."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"503","DOI":"10.5194\/isprs-archives-XLII-2-W13-503-2019","article-title":"Photogrammetric assessment and comparison of DJI Phantom 4 pro and phantom 4 RTK small unmanned aircraft systems","volume":"XLII-2\/W13","author":"Peppa","year":"2019","journal-title":"Int. Arch. Photogramm. Remote Sens. Spat. Inf. Sci."},{"key":"ref_50","doi-asserted-by":"crossref","unstructured":"\u0160troner, M., Urban, R., Reindl, T., Seidl, J., and Brou\u010dek, J. (2020). Evaluation of the georeferencing accuracy of a photogrammetric model using a quadrocopter with onboard GNSS RTK. J. Sens., 20.","DOI":"10.3390\/s20082318"},{"key":"ref_51","doi-asserted-by":"crossref","unstructured":"Taddia, Y., Stecchi, F., and Pellegrinelli, A. (2020). Coastal mapping using DJI Phantom 4 RTK in post-processing kinematic mode. Drones, 4.","DOI":"10.3390\/drones4020009"},{"key":"ref_52","first-page":"257","article-title":"Ablation of the Waldemar Glacier in the summer seasons 1996, 1997 and 1998","volume":"26","author":"Sobota","year":"1999","journal-title":"Pol. Polar Stud."},{"key":"ref_53","first-page":"249","article-title":"Selected methods in mass balance estimation of Waldemar Glacier, Spitsbergen","volume":"28","author":"Sobota","year":"2007","journal-title":"Pol. Polar. Res."},{"key":"ref_54","first-page":"317","article-title":"The near-surface ice thermal structure of the Waldemarbreen, Svalbard","volume":"30","author":"Sobota","year":"2009","journal-title":"Polar Res."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"81","DOI":"10.1515\/bgeo-2016-0006","article-title":"Icings and their role as an important element of the cryosphere in High Arctic glacier forefields","volume":"10","author":"Sobota","year":"2016","journal-title":"Bull. Geogr. Phys. Geogr. Ser."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1080\/04353676.2017.1297679","article-title":"Selected problems of snow accumulation on glaciers during long-term studies in north-western Spitsbergen, Svalbard","volume":"99","author":"Sobota","year":"2017","journal-title":"Geogr. Ann. A"},{"key":"ref_57","unstructured":"Sobota, I. (2021). Atlas of Changes in the Glaciers of Kaffi\u00f8yra (Svalbard, the Arctic), Scientific Publishers of the Nicolaus Copernicus University. [1st ed.]."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"16","DOI":"10.1016\/j.geomorph.2013.04.001","article-title":"Changes in dynamics and runoff from the High Arctic glacial catchment of Waldemarbreen, Svalbard","volume":"212","author":"Sobota","year":"2014","journal-title":"Geomorphology"},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"175","DOI":"10.24425\/ppr.2019.129670","article-title":"Meteorological conditions on Kaffi\u00f8yra (NW Spitsbergen) in 2013\u20132017 and their connection with atmospheric circulation and sea ice extent","volume":"40","author":"Kejna","year":"2019","journal-title":"Pol. Polar Res."},{"key":"ref_60","unstructured":"Porter, C., Morin, P., Howat, I., Noh, M.-J., Bates, B., Peterman, K., Keesey, S., Schlenk, M., Gardiner, J., and Tomko, K. (2018). ArcticDEM, Harvard Dataverse, V1."},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"2081","DOI":"10.1002\/esp.4637","article-title":"Guidelines on the use of structure-from-motion photogrammetry in geomorphic research","volume":"44","author":"James","year":"2019","journal-title":"Earth Surf. Process. Landf."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.jhydrol.2020.125279","article-title":"Rain-on-Snow (ROS) events and their relations to snowpack and ice layer changes on small glaciers in Svalbard, the high Arctic","volume":"590","author":"Sobota","year":"2020","journal-title":"J. Hydrol."},{"key":"ref_63","unstructured":"\u00d8strem, G., and Brugman, M. (1991). Glacier Mass-Balance Measurements: A Manual for Field and Office Work, National Hydrology Research Institute. [1st ed.]."},{"key":"ref_64","unstructured":"Cogley, J.G., Hock, R., Rasmussen, L.A., Arendt, A.A., Bauder, A., Braithwaite, R.J., Jansson, P., Kaser, G., Moller, M., and Nicholson, L. (2011). Glossary of Glacier Mass Balance and Related Terms, UNESCO-IHP. IHP-VII Technical Documents in Hydrology No. 86; IACS Contribution No. 2."},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"521","DOI":"10.5194\/tc-12-521-2018","article-title":"Increased West Antarctic and unchanged East Antarctic ice discharge over the last 7 years","volume":"12","author":"Gardner","year":"2018","journal-title":"Cryosphere"},{"key":"ref_66","unstructured":"Zheng, W., Durkin, W.J., Melkonian, A.K., and Pritchard, M.E. (2021). Cryosphere and Remote Sensing Toolkit (CARST) v2.0.0a1 (Version v2.0.0a1), Zenodo."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"2115","DOI":"10.5194\/tc-15-2115-2021","article-title":"Glacier Image Velocimetry: An open-source toolbox for easy and rapid calculation of high-resolution glacier velocity fields","volume":"15","author":"Wickert","year":"2021","journal-title":"Cryosphere"},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"177","DOI":"10.1016\/0034-4257(92)90101-O","article-title":"Application of image cross-correlation to the measurement of glacier velocity using satellite image data","volume":"42","author":"Scambos","year":"1992","journal-title":"Remote Sens. Environ."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"e2021JF006161","DOI":"10.1029\/2021JF006161","article-title":"Interpretation of volume and flux changes of the Laurichard rock glacier between 1952 and 2019, French Alps","volume":"126","author":"Cusicanqui","year":"2021","journal-title":"J. Geophys. Res. Earth Surf."},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"88","DOI":"10.1002\/geot.201900074","article-title":"Innovative methods to monitor rock and mountain slope deformation","volume":"13","author":"Hormes","year":"2020","journal-title":"Geomech. Tunn."},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"5345","DOI":"10.5194\/tc-15-5345-2021","article-title":"Multi-decadal (1953\u20132017) rock glacier kinematics analysed by high-resolution topographic data in the upper Kaunertal, Austria","volume":"15","author":"Fleischer","year":"2021","journal-title":"Cryosphere"},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"107261","DOI":"10.1016\/j.geomorph.2020.107261","article-title":"Analyses of UAV and GNSS based flow velocity variations of the rock glacier Lazaun (\u00d6tztal Alps, South Tyrol, Italy)","volume":"365","author":"Fey","year":"2020","journal-title":"Geomorphology"},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1007\/s12518-019-00269-4","article-title":"Analysis of multi-constellation GNSS PPP solutions under phase scintillations at high latitudes","volume":"12","author":"Dabove","year":"2020","journal-title":"Appl. Geomat."},{"key":"ref_74","doi-asserted-by":"crossref","first-page":"363","DOI":"10.3189\/172756504781829855","article-title":"Comparison of geodetic and glaciological mass-balance techniques, Gulkana Glacier, Alaska, USA","volume":"50","author":"Cox","year":"2004","journal-title":"J. Glaciol."},{"key":"ref_75","first-page":"1151","article-title":"Comparison of direct and GMBs on a multi-annual time scale","volume":"4","author":"Fischer","year":"2010","journal-title":"Cryosphere Discuss."},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"96","DOI":"10.3189\/172756409787769744","article-title":"Geodetic and direct mass-balance measurements: Comparison and joint analysis","volume":"50","author":"Cogley","year":"2009","journal-title":"Ann. Glaciol."},{"key":"ref_77","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1017\/jog.2020.88","article-title":"Reanalysing the 2007\u201319 glaciological mass-balance series of Mera Glacier, Nepal, Central Himalaya, using GMB","volume":"67","author":"Wagnon","year":"2021","journal-title":"J. Glaciol."},{"key":"ref_78","doi-asserted-by":"crossref","first-page":"743","DOI":"10.3189\/2014JoG13J181","article-title":"Satellite-derived volume loss rates and glacier speeds for the Juneau Icefield, Alaska","volume":"60","author":"Melkonian","year":"2014","journal-title":"J. Glaciol."},{"key":"ref_79","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1002\/1099-1530(200012)11:4<315::AID-PPP365>3.0.CO;2-J","article-title":"Surface geometry, thickness changes and flow fields on creeping mountain permafrost: Automatic extraction by digital image analysis","volume":"11","author":"Vollmer","year":"2000","journal-title":"Permafr. Periglac. Process."},{"key":"ref_80","doi-asserted-by":"crossref","first-page":"206","DOI":"10.3389\/feart.2019.00206","article-title":"High-endurance UAV for monitoring calving glaciers: Application to the Inglefield Bredning and Eqip Sermia, Greenland","volume":"7","author":"Jouvet","year":"2019","journal-title":"Front. Earth Sci."},{"key":"ref_81","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1016\/j.geomorph.2016.11.021","article-title":"Optimising UAV topographic surveys processed with structure-from-motion: Ground control quality, quantity and bundle adjustment","volume":"280","author":"James","year":"2017","journal-title":"Geomorphology"},{"key":"ref_82","doi-asserted-by":"crossref","first-page":"107855","DOI":"10.1016\/j.geomorph.2021.107855","article-title":"High-resolution monitoring of debris-covered glacier mass budget and flow velocity using repeated UAV photogrammetry in Iran","volume":"389","author":"Karimi","year":"2021","journal-title":"Geomorphology"},{"key":"ref_83","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.isprsjprs.2013.04.009","article-title":"Accurate 3D comparison of complex topography with terrestrial laser scanner: Application to the Rangitikei canyon (NZ)","volume":"82","author":"Lague","year":"2013","journal-title":"ISPRS J. Photogram. Remote Sens."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/14\/4\/1029\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T22:23:41Z","timestamp":1760135021000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/14\/4\/1029"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,2,21]]},"references-count":83,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2022,2]]}},"alternative-id":["rs14041029"],"URL":"https:\/\/doi.org\/10.3390\/rs14041029","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,2,21]]}}}