| | --- |
| | license: mit |
| | size_categories: |
| | - n>1T |
| | tags: |
| | - Helio |
| | - Foundation_model |
| | - Pretraining |
| | --- |
| | |
| |  |
| |
|
| | # 🌞 SDO ML-Ready Dataset: AIA and HMI Level-1.5 |
| |
|
| | ## Overview |
| |
|
| | This dataset provides machine learning (ML)-ready solar data curated from NASA’s Solar Dynamics Observatory (SDO), covering observations from **May 13, 2010, to July 31, 2024**. It includes Level-1.5 processed data from: |
| |
|
| | - **Atmospheric Imaging Assembly (AIA)**: |
| | - **Helioseismic and Magnetic Imager (HMI)**: |
| |
|
| | The dataset is designed to facilitate large-scale ML applications in heliophysics, such as solar activity forecasting, unsupervised representation learning, and scientific foundation model development. |
| |
|
| | --- |
| |
|
| | ## 📦 Dataset Details |
| |
|
| | | Field | Description | |
| | |------------------------|---------------------------------------------| |
| | | **Temporal Coverage** | May 13, 2010 – Dec 31, 2024 | |
| | | **Data Format** | netCDF (`.nc`), float32 | |
| | | **Temporal Granularity**| 12 minutes | |
| | | **Data Shape** | `[13, 4096, 4096]` per file | |
| | | **Channels** | 13 total (AIA EUV ×8 + HMI magnetograms ×5) | |
| | | **Size per File** | ~570 MB | |
| | | **Total Size** | ~360TB | |
| |
|
| | --- |
| | **Data Variables:** |
| | ```text |
| | - aia94 (y, x) float32 : AIA 94 Å |
| | - aia131 (y, x) float32 : AIA 131 Å |
| | - aia171 (y, x) float32 : AIA 171 Å |
| | - aia193 (y, x) float32 : AIA 193 Å |
| | - aia211 (y, x) float32 : AIA 211 Å |
| | - aia304 (y, x) float32 : AIA 304 Å |
| | - aia335 (y, x) float32 : AIA 335 Å |
| | - aia1600 (y, x) float32 : AIA 1600 Å (UV continuum) |
| | - hmi_m (y, x) float32 : HMI LOS Magnetogram |
| | - hmi_bx (y, x) float32 : HMI Magnetic Field - x component |
| | - hmi_by (y, x) float32 : HMI Magnetic Field - y component |
| | - hmi_bz (y, x) float32 : HMI Magnetic Field - z component |
| | - hmi_v (y, x) float32 : HMI Doppler Velocity |
| | |
| | --- |
| | Training Data for 1 month is available on Huggingface parallel to the main branch as Parquet files. |
| | |
| | Authors |
| | Sujit Roy, Dinesha Vasanta Hegde, Johannes Schmude, Amy Lin, Vishal Gaur, Talwinder Singh, Rohit Lal |
| | corr: sujit.roy@nasa.gov |
