Browsing Bergen Open Research Archive by Author "Moiseev, Artem"
Now showing items 1-4 of 4
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Ocean surface currents derived from Sentinel-1 SAR Doppler shift measurements
Moiseev, Artem (Doctoral thesis, 2021-05-20)Reliable information about ocean surface currents is crucial for operational oceanography, regulating weather development, and climate research (e.g., UN SDG 13). Upper-ocean currents are also key for monitoring life below ... -
On the Use of Dual Co-Polarized Radar Data to Derive a Sea Surface Doppler Model - Part 2: Simulation and Validation
Fan, Shengren; Zhang, Biao; Moiseev, Artem; Kudryavtsev, Vladimir; Johannessen, Johnny Andre; Chapron, Bertrand (Journal article; Peer reviewed, 2023)The Doppler shift obtained from synthetic aperture radar (SAR) measurements comprises the combined contribution to the radial motion of the ocean surface induced by the sea state (wind waves and swell) and underlying surface ... -
On the use of dual co-polarized radar data to derive a sea surface Doppler model-part 1: Approach
Kudryavtsev, Vladimir; Fan, Shengren; Zhang, Biao; Chapron, Bertrand; Johannessen, Johnny Andre; Moiseev, Artem (Journal article; Peer reviewed, 2023)This article proposes a Doppler velocity (DV) model based on dual co-polarized (co-pol) decomposition of a normalized radar cross section of an ocean surface on polarized Bragg scattering and nonpolarized (NP) radar returns ... -
Towards Retrieving Reliable Ocean Surface Currents in the Coastal Zone From the Sentinel-1 Doppler Shift Observations
Moiseev, Artem; Johannessen, Johnny Andre; Johnsen, Harald (Journal article; Peer reviewed, 2022)Recent developments on calibration and partitioning of the signal between the wave and current contributions significantly improve the accuracy of geophysical retrievals from Sentinel-1 Synthetic Aperture Radar-based Doppler ...