Articles | Volume 16, issue 4
https://doi.org/10.5194/tc-16-1497-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-1497-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Apr 2022
Research article |
| 27 Apr 2022
| 27 Apr 2022
Snow water equivalent change mapping from slope-correlated synthetic aperture radar interferometry (InSAR) phase variations
School of Engineering Science, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
Bernhard Rabus
School of Engineering Science, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
Peter Morse
Geological Survey of Canada, Natural Resources Canada, Ottawa, ON, K1A 0E8, Canada
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Cited
21 citations as recorded by crossref.
- A Discrete Interferometric Model for a Layer of a Random Medium: Effects on InSAR Coherence, Power, and Phase S. Seker et al. https://doi.org/10.3390/app15094802
- Toward Dry Snow Parameter Estimation by Simultaneous Multiple Squint Differential InSAR A. Benedikter et al. https://doi.org/10.1109/TGRS.2024.3486328
- Retrieval of snow depth using synthetic aperture radar: past, current, and future Z. Li et al. https://doi.org/10.1016/j.jhydrol.2026.135103
- Assessing the Applicability of Sentinel-1 D-InSAR for Snow Depth Retrieval in the Maxian Mountains T. Feng et al. https://doi.org/10.3390/s26206525
- Comparing InSAR Snow Water Equivalent Retrieval Using ALOS2 With In Situ Observations and SnowModel Over the Boreal Forest Area J. Jorge Ruiz et al. https://doi.org/10.1109/TGRS.2024.3439855
- Impact of a Thin Inhomogeneous Snow Layer on a Microwave Corner Reflector RADAR Cross Section: Consequences for Spaceborne Remote Sensing J. Friedt https://doi.org/10.1109/TGRS.2024.3423688
- Estimating snow accumulation and ablation with L-band interferometric synthetic aperture radar (InSAR) J. Tarricone et al. https://doi.org/10.5194/tc-17-1997-2023
- Evaluating snow depth measurements from ground-penetrating radar and airborne lidar in boreal forest and tundra environments during the NASA SnowEx 2023 campaign K. Holland-Goon et al. https://doi.org/10.5194/tc-20-2169-2026
- Interferometric SAR for monitoring the Arctic cryosphere: Progress, challenges, and perspectives J. Zhao et al. https://doi.org/10.1016/j.earscirev.2026.105698
- Snow water equivalent retrieval and analysis over Altay using 12 d repeat-pass Sentinel-1 interferometry J. Zhou et al. https://doi.org/10.5194/tc-19-5361-2025
- Assessment of L-band InSAR snow estimation techniques over a shallow, heterogeneous prairie snowpack R. Palomaki & E. Sproles https://doi.org/10.1016/j.rse.2023.113744
- Assessing the Snow Water Equivalent Dynamics of the Brahmaputra River Basin S. Rani et al. https://doi.org/10.17491/jgsi/2025/174080
- Enhancing Spatiotemporal InSAR Retrieval of Snow Water Equivalent Using Multichannel and MAP Estimators J. Jorge-Ruiz et al. https://doi.org/10.1109/TGRS.2026.3738147
- Advances and challenges in monitoring, risk assessment, and early warning of ice avalanches in High Mountain Asia M. Hu et al. https://doi.org/10.1016/j.earscirev.2026.105738
- Snow water equivalent retrieval over Idaho – Part 1: Using Sentinel-1 repeat-pass interferometry S. Oveisgharan et al. https://doi.org/10.5194/tc-18-559-2024
- Snow Water Equivalent Monitoring—A Review of Large-Scale Remote Sensing Applications S. Schilling et al. https://doi.org/10.3390/rs16061085
- Multi-Band Differential SAR Interferometry for Snow Water Equivalent Retrieval over Alpine Mountains F. Bovenga et al. https://doi.org/10.3390/rs17142479
- Exploring D-Pol-InSAR Coherence Regions for Snow Water Equivalent Estimation K. Belinska et al. https://doi.org/10.1109/TGRS.2026.3672275
- Evaluating snow depth retrievals from Sentinel-1 volume scattering over NASA SnowEx sites Z. Hoppinen et al. https://doi.org/10.5194/tc-18-5407-2024
- Using LIDAR and SNOTEL data for evaluating the performance of snow water equivalent retrieval using Sentinel-1 repeat-pass interferometry S. Oveisgharan et al. https://doi.org/10.5194/tc-20-4537-2026
- Sensitivity of Sentinel-1 C-band SAR backscatter, polarimetry and interferometry to snow accumulation in the Alps J. Jans et al. https://doi.org/10.1016/j.rse.2024.114477
21 citations as recorded by crossref.
- A Discrete Interferometric Model for a Layer of a Random Medium: Effects on InSAR Coherence, Power, and Phase S. Seker et al. https://doi.org/10.3390/app15094802
- Toward Dry Snow Parameter Estimation by Simultaneous Multiple Squint Differential InSAR A. Benedikter et al. https://doi.org/10.1109/TGRS.2024.3486328
- Retrieval of snow depth using synthetic aperture radar: past, current, and future Z. Li et al. https://doi.org/10.1016/j.jhydrol.2026.135103
- Assessing the Applicability of Sentinel-1 D-InSAR for Snow Depth Retrieval in the Maxian Mountains T. Feng et al. https://doi.org/10.3390/s26206525
- Comparing InSAR Snow Water Equivalent Retrieval Using ALOS2 With In Situ Observations and SnowModel Over the Boreal Forest Area J. Jorge Ruiz et al. https://doi.org/10.1109/TGRS.2024.3439855
- Impact of a Thin Inhomogeneous Snow Layer on a Microwave Corner Reflector RADAR Cross Section: Consequences for Spaceborne Remote Sensing J. Friedt https://doi.org/10.1109/TGRS.2024.3423688
- Estimating snow accumulation and ablation with L-band interferometric synthetic aperture radar (InSAR) J. Tarricone et al. https://doi.org/10.5194/tc-17-1997-2023
- Evaluating snow depth measurements from ground-penetrating radar and airborne lidar in boreal forest and tundra environments during the NASA SnowEx 2023 campaign K. Holland-Goon et al. https://doi.org/10.5194/tc-20-2169-2026
- Interferometric SAR for monitoring the Arctic cryosphere: Progress, challenges, and perspectives J. Zhao et al. https://doi.org/10.1016/j.earscirev.2026.105698
- Snow water equivalent retrieval and analysis over Altay using 12 d repeat-pass Sentinel-1 interferometry J. Zhou et al. https://doi.org/10.5194/tc-19-5361-2025
- Assessment of L-band InSAR snow estimation techniques over a shallow, heterogeneous prairie snowpack R. Palomaki & E. Sproles https://doi.org/10.1016/j.rse.2023.113744
- Assessing the Snow Water Equivalent Dynamics of the Brahmaputra River Basin S. Rani et al. https://doi.org/10.17491/jgsi/2025/174080
- Enhancing Spatiotemporal InSAR Retrieval of Snow Water Equivalent Using Multichannel and MAP Estimators J. Jorge-Ruiz et al. https://doi.org/10.1109/TGRS.2026.3738147
- Advances and challenges in monitoring, risk assessment, and early warning of ice avalanches in High Mountain Asia M. Hu et al. https://doi.org/10.1016/j.earscirev.2026.105738
- Snow water equivalent retrieval over Idaho – Part 1: Using Sentinel-1 repeat-pass interferometry S. Oveisgharan et al. https://doi.org/10.5194/tc-18-559-2024
- Snow Water Equivalent Monitoring—A Review of Large-Scale Remote Sensing Applications S. Schilling et al. https://doi.org/10.3390/rs16061085
- Multi-Band Differential SAR Interferometry for Snow Water Equivalent Retrieval over Alpine Mountains F. Bovenga et al. https://doi.org/10.3390/rs17142479
- Exploring D-Pol-InSAR Coherence Regions for Snow Water Equivalent Estimation K. Belinska et al. https://doi.org/10.1109/TGRS.2026.3672275
- Evaluating snow depth retrievals from Sentinel-1 volume scattering over NASA SnowEx sites Z. Hoppinen et al. https://doi.org/10.5194/tc-18-5407-2024
- Using LIDAR and SNOTEL data for evaluating the performance of snow water equivalent retrieval using Sentinel-1 repeat-pass interferometry S. Oveisgharan et al. https://doi.org/10.5194/tc-20-4537-2026
- Sensitivity of Sentinel-1 C-band SAR backscatter, polarimetry and interferometry to snow accumulation in the Alps J. Jans et al. https://doi.org/10.1016/j.rse.2024.114477
Saved (final revised paper)
Latest update: 08 Nov 2026
Short summary
We introduce a new method for mapping changes in the snow water equivalent (SWE) of dry snow based on differences between time-repeated synthetic aperture radar (SAR) images. It correlates phase differences with variations in the topographic slope which allows the method to work without any "reference" targets within the imaged area and without having to numerically unwrap the spatial phase maps. This overcomes the key challenges faced in using SAR interferometry for SWE change mapping.
We introduce a new method for mapping changes in the snow water equivalent (SWE) of dry snow...
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