{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,13]],"date-time":"2026-03-13T15:33:47Z","timestamp":1773416027393,"version":"3.50.1"},"reference-count":40,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2015,8,24]],"date-time":"2015-08-24T00:00:00Z","timestamp":1440374400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Funds for International Cooperation and Exchange of the National Natural Science Foundation of China","award":["41120114001"],"award-info":[{"award-number":["41120114001"]}]},{"name":"National Key Technology Research and Development Program of the Ministry of Science and Technology of China","award":["2012BAH27B05"],"award-info":[{"award-number":["2012BAH27B05"]}]},{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","award":["2015QNA32"],"award-info":[{"award-number":["2015QNA32"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>We obtained accurate, detailed motion distribution of glaciers in Central Asia by applying digital elevation model (DEM) assisted pixel-tracking method to L-band synthetic aperture radar imagery. The paper firstly introduces and analyzes each component of the offset field briefly, and then describes the method used to efficiently and precisely compensate the topography-related offset caused by the large spatial baseline and rugged terrain with the help of DEM. The results indicate that the rugged topography not only forms the complex shapes of glaciers, but also affects the glacier velocity estimation, especially with large spatial baseline. The maximum velocity, 0.85 m\u2219d\u22121, was observed in the middle part on the Fedchenko Glacier, which is the world\u2019s longest mountain glacier. The motion fluctuation on its main trunk is apparently influenced by mass flowing in from tributaries, as well as angles between tributaries and the main stream. The approach presented in this paper was proved to be highly appropriate for monitoring glacier motion and will provide valuable sensitive indicators of current and future climate change for environmental analysis.<\/jats:p>","DOI":"10.3390\/rs70810898","type":"journal-article","created":{"date-parts":[[2015,8,25]],"date-time":"2015-08-25T02:34:23Z","timestamp":1440470063000},"page":"10898-10916","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Accurate Determination of Glacier Surface Velocity Fields with a DEM-Assisted Pixel-Tracking Technique from SAR Imagery"],"prefix":"10.3390","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9577-1662","authenticated-orcid":false,"given":"Shiyong","family":"Yan","sequence":"first","affiliation":[{"name":"Jiangsu Key Laboratory of Resources and Environmental Engineering, School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China"}]},{"given":"Guang","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100094, China"}]},{"given":"Yunjia","family":"Wang","sequence":"additional","affiliation":[{"name":"Jiangsu Key Laboratory of Resources and Environmental Engineering, School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China"}]},{"given":"Zhixing","family":"Ruan","sequence":"additional","affiliation":[{"name":"Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100094, China"}]}],"member":"1968","published-online":{"date-parts":[[2015,8,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"150","DOI":"10.3189\/172756407782871512","article-title":"Integrated monitoring of mountain glaciers as key indicators of global climate change: The European Alps","volume":"46","author":"Haeberli","year":"2007","journal-title":"Ann. Glaciol."},{"key":"ref_2","unstructured":"Parry, M.L., Canziani, O.F., Palutikof, J.P., van der Linden, P.J., and Hanson, C.E. (2007). Climate change 2007\u2014Impacts, Adaptation and Vulnerability: Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1060","DOI":"10.3189\/2013JoG12J234","article-title":"Glacier velocity measurements in the eastern Yigong Zangbo basin, Tibet, China","volume":"59","author":"Ke","year":"2013","journal-title":"J. Glaciol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"5518","DOI":"10.1080\/01431161.2013.792965","article-title":"Estimation and validation of glacier surface motion in the northwestern Himalayas using high-resolution SAR intensity tracking","volume":"34","author":"Kumar","year":"2013","journal-title":"Int. J. Remote Sens."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1126\/science.258.5079.115","article-title":"Sensitivity of glaciers and small ice caps to greenhouse warming","volume":"258","author":"Oerlemans","year":"1992","journal-title":"Science"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1177\/0309133311399494","article-title":"Glacier retreat and climate change: Documenting the last 50 years of Alpine glacier history from area and geometry changes of Dosde Piazzi glaciers (Lombardy Alps, Italy)","volume":"35","author":"Diolaiuti","year":"2011","journal-title":"Prog. Phys. Geog."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1691","DOI":"10.1007\/s11069-011-9860-2","article-title":"Identification of potentially dangerous glacial lakes in the northern Tien Shan","volume":"59","author":"Bolch","year":"2011","journal-title":"Nat. Hazard."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"172","DOI":"10.1016\/j.rse.2007.05.019","article-title":"The potential of satellite radar interferometry and feature tracking for monitoring flow rates of Himalayan glaciers","volume":"111","author":"Luckman","year":"2007","journal-title":"Remote Sens. Environ."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1016\/j.rse.2012.09.021","article-title":"Short-term glacier velocity changes at West Kun Shan, Northwest Tibet, detected by synthetic aperture radar data","volume":"128","author":"Yasuda","year":"2013","journal-title":"Remote Sens. Environ."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"437","DOI":"10.1080\/01431160500486674","article-title":"Himalayan glacier retreat using IRS 1C PAN stereo data","volume":"28","author":"Bahuguna","year":"2007","journal-title":"Int. J. Remote Sens."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Berthier, E., Arnaud, Y., Baratoux, D., Vincent, C., and R\u00e9my, F. (2004). Recent rapid thinning of the \u201cMer de Glace\u201d glacier derived from satellite optical images. Geophy. Res. Lett., 31.","DOI":"10.1029\/2004GL020706"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Kaser, G., Cogley, J.G., Dyurgerov, M.B., Meier, M.F., and Ohmura, A. (2006). Mass balance of glaciers and ice caps: Consensus estimates for 1961\u20132004. Geophys. Res. Lett., 33.","DOI":"10.1029\/2006GL027511"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"2","DOI":"10.1029\/2008EO010001","article-title":"Monitoring Earth Surface Dynamics with Optical Imagery","volume":"89","author":"Leprince","year":"2008","journal-title":"Eos. Trans. Am. Geophys. Union"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1016\/j.gloplacha.2009.07.001","article-title":"Glacier retreat and climatic variability in the eastern Terskey-Alatoo, inner Tien Shan between the middle of the 19th century and beginning of the 21st century","volume":"69","author":"Stanislav","year":"2009","journal-title":"Global Planet. Chang."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1427","DOI":"10.1126\/science.1208336","article-title":"Ice flow of the Antarctic ice sheet","volume":"333","author":"Rignot","year":"2011","journal-title":"Science"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"3806","DOI":"10.1016\/j.rse.2008.05.018","article-title":"Glacier-surface velocities in alpine terrain from optical satellite imagery\u2014Accuracy improvement and quality assessment","volume":"112","author":"Scherler","year":"2008","journal-title":"Remote Sens. Environ."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"463","DOI":"10.1016\/j.rse.2004.11.003","article-title":"Combination of SRTM3 and repeat ASTER data for deriving alpine glacier flow velocities in the Bhutan Himalayas","volume":"94","year":"2005","journal-title":"Remote Sens. Environ."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"781","DOI":"10.1126\/science.1153288","article-title":"Seasonal speedup along the western flank of the Greenland Ice Sheet","volume":"320","author":"Joughin","year":"2008","journal-title":"Science"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1525","DOI":"10.1126\/science.262.5139.1525","article-title":"Satellite radar interferometry for monitoring ice sheet motion: Application to an Antarctic ice stream","volume":"262","author":"Goldstein","year":"1993","journal-title":"Science"},{"key":"ref_20","first-page":"273","article-title":"Three-dimensional glacial flow and surface elevation measured with radar interferometry","volume":"391","author":"Johan","year":"1997","journal-title":"Nature"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"571","DOI":"10.1029\/95GL00264","article-title":"Observations of ice-sheet motion in Greenland using satellite radar interferometry","volume":"22","author":"Joughin","year":"1995","journal-title":"Geophys. Res. Lett."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"2384","DOI":"10.1109\/TGRS.2002.805079","article-title":"Glacier motion estimation using SAR offset-tracking procedures","volume":"40","author":"Strozzi","year":"2002","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Yun, S.H., Zebker, H., Segall, P., Hooper, A., and Poland, M. (2007). Interferogram formation in the presence of complex and large deformation. Geophys. Res. Lett., 34.","DOI":"10.1029\/2007GL029745"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"636","DOI":"10.1016\/j.rse.2007.06.007","article-title":"Estimation of Arctic glacier motion with satellite L-band SAR data","volume":"112","author":"Strozzi","year":"2008","journal-title":"Remote Sens. Environ."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"443","DOI":"10.1016\/j.polar.2010.04.010","article-title":"Fluctuations in the flow velocity of the Antarctic Shirase Glacier over an 11-year period","volume":"4","author":"Nakamura","year":"2010","journal-title":"Polar Sci."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"986","DOI":"10.1126\/science.1121381","article-title":"Changes in the velocity structure of the Greenland Ice Sheet","volume":"311","author":"Rignot","year":"2006","journal-title":"Science"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"106","DOI":"10.1038\/ngeo102","article-title":"Recent Antarctic ice mass loss from radar interferometry and regional climate modelling","volume":"1","author":"Rignot","year":"2008","journal-title":"Nat. Geosci."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"608","DOI":"10.1038\/nature03130","article-title":"Large fluctuations in speed on Greenland\u2019s Jakobshavn Isbr\u00e6 glacier","volume":"432","author":"Joughin","year":"2004","journal-title":"Nature"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1016\/j.rse.2009.08.015","article-title":"Landsat-based inventory of glacier in western Canada, 1985\u20132005","volume":"114","author":"Bolch","year":"2010","journal-title":"Remote Sens. Environ."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1007\/s10113-010-0174-9","article-title":"Climate change in Nepal and its impact on Himalayan glaciers","volume":"11","author":"Shrestha","year":"2011","journal-title":"Reg. Environ. Chang."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"275","DOI":"10.3189\/002214309788608787","article-title":"Stable-isotope and trace element time series from Fedchenko glacier (Pamirs) snow\/firn cores","volume":"55","author":"Vladimir","year":"2009","journal-title":"J. Glaciol."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"33","DOI":"10.7886\/hgs.84.33","article-title":"Mapping features of Fedchenko Glacier, the Pamirs, Central Asia from space","volume":"84","author":"Iwata","year":"2009","journal-title":"Geogr. Stud."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"233","DOI":"10.3189\/2014JoG13J110","article-title":"The evolution of Fedchenko glacier in the Pamir Tajikstan, during the past eight decades","volume":"60","author":"Astrid","year":"2014","journal-title":"J. Glaciol."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"3020","DOI":"10.1109\/TGRS.2010.2043739","article-title":"Topographic correction for ALOS PALSAR interferometry","volume":"48","author":"Samsonov","year":"2010","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_35","unstructured":"Cuffey, K.M., and Paterson, W.S.B. (2010). The Physics of Glaciers, Academic Press. [4th ed.]."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1016\/j.isprsjprs.2013.04.010","article-title":"Glacier surface velocity estimation using repeat TerraSAR-X images: Wavelet- vs. correlationn-based image matching","volume":"82","author":"Schubert","year":"2013","journal-title":"JSPRS J. Photogramm. Remote Sens."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"494","DOI":"10.1080\/2150704X.2012.754561","article-title":"Mountain glacier displacement monitoring using a DEM-assisted offset-tracking method with ALOS\/PALSAR data","volume":"4","author":"Yan","year":"2013","journal-title":"Remote Sens. Lett."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"2861","DOI":"10.1109\/TGRS.2006.875787","article-title":"Geometrical SAR image registration","volume":"44","author":"Sansosti","year":"2006","journal-title":"IEEE T. Geosci. Remote Sens."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"372","DOI":"10.1109\/JSTARS.2010.2096200","article-title":"Monitoring temperate glacier displacement by multi-temporal TerraSAR-X images and continuous GPS measurements","volume":"4","author":"Fallourd","year":"2011","journal-title":"IEEE J. Select. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"1033","DOI":"10.1007\/s12665-012-1563-9","article-title":"Yengisogat Glacier surface velocities with ALOS PALSAR data feature tracking, Karakoram, China","volume":"67","author":"Jiang","year":"2012","journal-title":"Environ. Earth Sci."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/8\/10898\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T20:47:16Z","timestamp":1760215636000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/8\/10898"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,8,24]]},"references-count":40,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2015,8]]}},"alternative-id":["rs70810898"],"URL":"https:\/\/doi.org\/10.3390\/rs70810898","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,8,24]]}}}