Dataset for: An Explainable Optical Flow Network for Arctic Sea Ice Drift Extraction from Multi-Frequency AMSR2 Passive Microwave Data

Dataset for An Explainable Optical Flow Network for Arctic Sea Ice Drift Extraction from Multi-Frequency AMSR2 Passive Microwave Data. ## 📁 Dataset Structure The dataset is organized by region and data type: root/ ├── train/ └── test/ ├── Region_1/ ├── Region_2/ ├── Region_3/ │ ├── 18/ │ ├── 36/ │ ├── 89/ │ ├── wv/ │ ├── sic/ │ └── flow/ └── ... --- ## 🧊 Data Components ### 1. Brightness Temperature (TB) Stored under frequency folders: - 18/ - 36/ - 89/ Each folder contains both polarizations: 2021001h.png # Horizontal polarization 2021001v.png # Vertical polarization - h → Horizontal (H) - v → Vertical (V) --- ### 2. Water Vapor (WV) Directory: wv/ Format: .tif 2021001.tif 2021002.tif Represents atmospheric water vapor content. --- ### 3. Sea Ice Concentration (SIC) Directory: sic/ Format: .png 2021001h.png 2021001v.png --- ### 4. ground truth Directory: flow/ Format: .txt region_3_2021_1.txt region_3_2021_2.txt Represents drift vector observed by IABP buoy --- ## Time Indexing - TB, WV, SIC: YYYYDOY (e.g., 2021001) - Flow: YYYY_index (e.g., 2021_1) ---