SMARPs and SHARPs: Two Solar Cycles of Active Region Data

Monica G. Bobra; Paul J. Wright; Xudong Sun; Michael J. Turmon

doi:10.3847/1538-4365/ac1f1d

SMARPs and SHARPs: Two Solar Cycles of Active Region Data

Solar and Stellar Astrophysics 2021-09-21 v1

Authors: Monica G. Bobra , Paul J. Wright , Xudong Sun , Michael J. Turmon

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Abstract

We present a new data product, called Space-Weather MDI Active Region Patches (SMARPs), derived from maps of the solar surface magnetic field taken by the Michelson Doppler Imager (MDI) aboard the Solar and Heliospheric Observatory (SoHO). Together with the Space-Weather HMI Active Region Patches (SHARPs), derived from similar maps taken by the Helioseismic and Magnetic Imager (HMI) aboard the Solar Dynamics Observatory, these data provide a continuous and seamless set of maps and keywords that describe every active region observed over the last two solar cycles, from 1996 to the present day. In this paper, we describe the SMARP data and compare it to the SHARP data.

Keywords

solar active regions smarp sharp mdi hmi solar magnetic field space weather data

Cite

@article{arxiv.2108.07918,
  title  = {SMARPs and SHARPs: Two Solar Cycles of Active Region Data},
  author = {Monica G. Bobra and Paul J. Wright and Xudong Sun and Michael J. Turmon},
  journal= {arXiv preprint arXiv:2108.07918},
  year   = {2021}
}

Comments

11 pages, 3 figures, accepted in ApJS

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