Magnetic field vector retrieval with the Helioseismic and Magnetic Imager

We investigate the accuracy to which we can retrieve the solar photospheric magnetic field vector using the Helioseismic and Magnetic Imager (HMI) that will fly onboard of the Solar Dynamics Observatory by inverting simulated HMI profiles. The simulated profiles realistically take into account the effects of the photon noise, limited spectral resolution, instrumental polarization modulation, solar p modes, and temporal averaging. The accuracy of the determination of the magnetic field vector is studied by considering the different operational modes of the instrument.

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Copyright 2007, Springer Netherlands
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Author Borrero Santiago, Juan M.
Tomczyk, Steven
Norton, Aimee
Darnell, John A.
Schou, J.
Scherrer, P.
Bush, R.
Liu, Y.
Publisher UCAR/NCAR - Library
Publication Date 2007-01-01T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2025-07-17T17:03:41.860991
Metadata Record Identifier edu.ucar.opensky::articles:6748
Metadata Language eng; USA
Suggested Citation Borrero Santiago, Juan M., Tomczyk, Steven, Norton, Aimee, Darnell, John A., Schou, J., Scherrer, P., Bush, R., Liu, Y.. (2007). Magnetic field vector retrieval with the Helioseismic and Magnetic Imager. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7h13277. Accessed 04 August 2025.

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