metadata

license: mit
tags:
  - solar-physics
  - solar-active-regions
  - segmentation
  - polarity-inversion-lines
  - space-weather

Binary Map Creator for Active Regions with Polarity Inversion Lines

Dataset Summary

This dataset provides binary segmentation maps (4096×4096 resolution) derived from Solar Dynamics Observatory (SDO) magnetograms. The maps highlight regions containing Active Regions (ARs) and Polarity Inversion Lines (PILs). The data spans observations from January 2011 to July 2024 and is intended for image segmentation tasks using full-disk 4096×4096 magnetogram rasters as input.

Supported Tasks and Applications

segmentation: Binary segmentation of solar magnetograms to identify ARs with embedded PILs.

Dataset Structure

Data Files

train.csv: Input list for 2011 data
val.csv: Input list for 2012 data
test.csv: Input list for 2013 data
ar_binary_masks.tar.gz: Binary segmentation maps from 2011 to 2024

To create other train, validation, and test set, use these files

ar_2011.csv: Data for 2011
ar_2012.csv: Data for 2012
...
ar_2024.csv: Data for 20124

Features

Each .h5 file contains two keys:

intersection: Binary map of polarity inversion lines (PILs)
union_with_intersect: Binary map of active regions that contain PILs

Dataset Details

Field	Description
Temporal Coverage	Jan 01, 2011 – July 31, 2024
Data Format	HDF5 (.h5)
Data Shape	[1, 4096, 4096] per file
Total Instances	Total 109,175 instances
Size per File	~ 53kB
Total Dataset Size	~ 7GB