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Part 1: Document Description
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Citation |
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Title: |
A Systematic Magnetic Polarity Inversion Lines Dataset from SDO and HMI Magnetograms |
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Identification Number: |
doi:10.7910/DVN/BKP1RH |
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Distributor: |
Harvard Dataverse |
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Date of Distribution: |
2022-05-31 |
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Version: |
4 |
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Bibliographic Citation: |
Khani, Ziba; Ji, Anli; Cai, Xumin; Khasayeva, Nigar; Georgoulis, Manolis; Martens, Petrus; Angryk, Rafal; Aydin, Berkay, 2022, "A Systematic Magnetic Polarity Inversion Lines Dataset from SDO and HMI Magnetograms", https://doi.org/10.7910/DVN/BKP1RH, Harvard Dataverse, V4, UNF:6:GbQBrPa7JfwXV/+3MSarKQ== [fileUNF] |
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Citation |
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Title: |
A Systematic Magnetic Polarity Inversion Lines Dataset from SDO and HMI Magnetograms |
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Identification Number: |
doi:10.7910/DVN/BKP1RH |
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Authoring Entity: |
Khani, Ziba (Georgia State University) |
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Ji, Anli (Georgia State University) |
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Cai, Xumin (Georgia State University) |
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Khasayeva, Nigar (Georgia State University) |
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Georgoulis, Manolis (Georgia State University) |
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Martens, Petrus (Georgia State University) |
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Angryk, Rafal (Georgia State University) |
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Aydin, Berkay (Georgia State University) |
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Distributor: |
Harvard Dataverse |
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Access Authority: |
Ji, Anli |
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Access Authority: |
Khani, Ziba |
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Depositor: |
Ji, Anli |
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Date of Deposit: |
2022-05-29 |
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Holdings Information: |
https://doi.org/10.7910/DVN/BKP1RH |
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Study Scope |
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Keywords: |
Astronomy and Astrophysics, Computer and Information Science, Magnetic Polarity Inversion Line, Solar Active Regions, Time Series Analysis |
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Abstract: |
Magnetic polarity inversion lines (PILs) detected in solar active regions have long been recognized as arguably the most essential feature for triggering the instabilities such as flares and eruptive events (i.e., eruptive flares and coronal mass ejections). In recent years, efforts have been focused on using features engineered from PILs for solar eruption prediction. However, PIL rasters and metadata are often generated as byproducts and are not accessible for public use, which limits their utilization in data-intensive space weather analytics applications. We introduce a large-scale publicly available PIL dataset covering practically the entire solar cycle 24 for applying to various space weather forecasting and analytics tasks. The dataset is created using line-of-sight (LoS) magnetograms from the Solar Dynamics Observatory's (SDO) Helioseismic and Magnetic Imager (HMI) Active Region Patches (HARPs) that involves 4,090 HARP series ranging from May 2010 to March 2019. This dataset includes three PIL-related binary masks of rasters: the actual PILs as per the spatial analysis of the magnetograms, the region of polarity inversion (RoPI), and the convex hull of PILs (convex closure of the set of detected PILs), along with time series structured metadata extracted from these masks. |
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Methodology and Processing |
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Sources Statement |
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Data Access |
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Other Study Description Materials |
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File Description--f7655018 |
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File: folder_mapping_v1.tab |
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Notes: |
UNF:6:GbQBrPa7JfwXV/+3MSarKQ== |
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List of Variables: | |
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Variables |
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f7655018 Location: |
Summary Statistics: Max. 7597.0; Min. 1.0; StDev 2136.927751630253; Valid 7394.0; Mean 3698.8289153366845; Variable Format: numeric Notes: UNF:6:JNz02UjXSBpPykX7YelGgQ== |
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f7655018 Location: |
Variable Format: character Notes: UNF:6:Y9C3xGL12jfEOTAFKH5TSw== |
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Label: |
HMI_PIL.tar.gz |
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Notes: |
application/x-gzip |
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Label: |
HMI_PIL_BR.tar.gz |
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Text: |
PIL dataset generated from Radial Field (Br) |
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Notes: |
application/x-gzip |
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Label: |
HMI_PIL_V1_1.tar.gz |
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Notes: |
application/gzip |
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Label: |
HMI_PIL_V1_10.tar.gz |
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application/gzip |
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HMI_PIL_V1_11.tar.gz |
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application/gzip |
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HMI_PIL_V1_12.tar.gz |
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application/gzip |
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HMI_PIL_V1_13.tar.gz |
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application/gzip |
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HMI_PIL_V1_14.tar.gz |
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application/gzip |
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HMI_PIL_V1_15.tar.gz |
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application/gzip |
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HMI_PIL_V1_16.tar.gz |
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application/gzip |
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HMI_PIL_V1_17.tar.gz |
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application/gzip |
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HMI_PIL_V1_2.tar.gz |
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application/gzip |
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HMI_PIL_V1_3.tar.gz |
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application/gzip |
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HMI_PIL_V1_4.tar.gz |
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application/gzip |
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HMI_PIL_V1_5.tar.gz |
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Notes: |
application/gzip |
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HMI_PIL_V1_6.tar.gz |
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Notes: |
application/gzip |
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HMI_PIL_V1_7.tar.gz |
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application/gzip |
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HMI_PIL_V1_8.tar.gz |
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Notes: |
application/gzip |
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HMI_PIL_V1_9.tar.gz |
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Notes: |
application/gzip |