Kaidel, Larson; Polashenski, Christopher: Synthetic Aperture Radar Images from Sentinel-1 over the Arctic Ocean from 2020-2021 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.986430 (dataset in review)
Abstract:
Two levels of processed Synthetic Aperture Radar imagery of Arctic sea ice. First, Level-1 Ground Range Detected Synthetic Aperture Radar imagery as downloaded from the Alaska Satellite Facility Vertex platform (Piantanida, 2022). Second, NetCDF files of backscatter that are radiometrically calibrated, speckle reduced, cross-polarization ratio calculated, and separately normalized and converted to decibels, and reprojected into a polar stereographic coordinate reference system (Meyer, 2019). All pre-processing of the L1-GRD data was done in the Sentinel Application Platform (SNAP) (ESA, 2024). Images are coincident over the SIDEx drifting buoy array from March 2021 to May 2021. Images were acquired from March 14 to May 05, 2021 and are centered at 72N drifting from approximately -150W to -158W. These images are intended to serve as pairs for producing sea ice motion maps from motion-extracting algorithms.
Supplement to:
Kaidel, Larson; Polashenski, Christopher (in prep.): Community Challenge for Image-Derived Observation of Sea Ice Drift and Deformation. The Cryosphere
Source:
References:
Science Toolbox Exploitation Platform - SNAP. Visited: 2024, https://step.esa.int/main/
Meyer, Franz (2019): Spaceborne Synthetic Aperture Radar: Principles, Data Access, and Basic Processing Techniques. The SAR Handbook, chapter 2, Meyer_2019.pdf
Piantanida, Riccardo (2022): Sentinel-1 Level 1 Detailed Algorithm Definition. RiccardoPiantanida_2022.pdf
Funding:
Office of Naval Research (ONR), grant/award no. N00014-20-1-2595: Sea Ice Modeling and Data Assimilation (SIMDA)
Comment:
File descriptions:
Each image (one acquisition time) comes in original L1-GRD as a zip file (<500 MB), netCDF (<5GB), and SNAP I/O BEAM-DIMAP (<50 MB). There are 49 of each type.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Kaidel, Larson | |||
| 2 | Binary Object (File Size) | Binary (Size) | Bytes | Kaidel, Larson | ||
| 3 | Binary Object (Media Type) | Binary (Type) | Kaidel, Larson | |||
| 4 | Binary Object (MD5 Hash) | Binary (Hash) | Kaidel, Larson |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
62 data points