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dc.contributor.authorKræmer, Thomas
dc.contributor.authorJohnsen, Harald
dc.contributor.authorBrekke, Camilla
dc.date.accessioned2018-08-03T13:41:35Z
dc.date.available2018-08-03T13:41:35Z
dc.date.issued2015-08-05
dc.description.abstractUsing data from the Envisat Advanced Synthetic Aperture Radar (ASAR) instrument, this paper demonstrates how the high-precision radial surface velocity product, which will become available with the European Space Agency's Sentinel-1 satellite, can complement the analysis of sea ice motion. High-resolution Doppler frequency measurements are used to estimate the subsecond line-of-sight motion of drifting sea ice in Fram Strait. We compare the method with buoy measurements and a recent cross-correlation algorithm for tracking ice between pairs of images. Maximum speeds measured from the time series were on the order of 20 cm/s. Using our method, we measured instantaneous speeds reaching 40-60 cm/s.en_US
dc.descriptionAccepted manuscript version. Published version available at <a href=https://doi.org/10.1109/TGRS.2015.2439044> https://doi.org/10.1109/TGRS.2015.2439044</a>. © © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en_US
dc.identifier.citationKræmer, T., Johnsen, H. & Brekke, C. (2015). Emulating sentinel-1 Doppler radial ice drift measurements using envisat ASAR data. IEEE Transactions on Geoscience and Remote Sensing, 53(12), 6407-6418. https://doi.org/10.1109/TGRS.2015.2439044en_US
dc.identifier.cristinIDFRIDAID 1134853
dc.identifier.doi10.1109/TGRS.2015.2439044
dc.identifier.issn0196-2892
dc.identifier.issn1558-0644
dc.identifier.urihttps://hdl.handle.net/10037/13351
dc.language.isoengen_US
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en_US
dc.relation.journalIEEE Transactions on Geoscience and Remote Sensing
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/NORDSATS/195143/Norway/Arctic Earth Observation and Surveillance Technologies//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430en_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430en_US
dc.subjectDoppler measurementsen_US
dc.subjectmotion estimationen_US
dc.subjectsynthetic aperture radar (SAR)en_US
dc.subjectsea iceen_US
dc.subjectSentinel-1en_US
dc.titleEmulating sentinel-1 Doppler radial ice drift measurements using envisat ASAR dataen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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