The SWAP Filter: A Simple Azimuthally Varying Radial Filter for Wide-Field EUV Solar Images

Seaton, Daniel B.; Berghmans, David; Bloomfield, D. Shaun; De Groof, Anik; D’Huys, Elke; Nicula, Bogdan; Rachmeler, Laurel A.; West, Matthew J.

doi:10.1007/s11207-023-02183-w

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The SWAP Filter: A Simple Azimuthally Varying Radial Filter for Wide-Field EUV Solar Images

2023
By Seaton, Daniel B. ; Berghmans, David ; Bloomfield, D. Shaun ; ...
Source: Solar Physics, 298(7)

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Journal Title:

Solar Physics
Personal Author:

Seaton, Daniel B. ; Berghmans, David ; Bloomfield, D. Shaun ; De Groof, Anik ; D’Huys, Elke ; ... More +

Seaton, Daniel B. ; Berghmans, David ; Bloomfield, D. Shaun ; De Groof, Anik ; D’Huys, Elke ; Nicula, Bogdan ; Rachmeler, Laurel A. ; West, Matthew J. Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information)

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information) Less -
Description:

We present the SWAP Filter: an azimuthally varying, radial normalizing filter specifically developed for EUV images of the solar corona, named for the Sun Watcher with Active Pixels and Image Processing (SWAP) instrument on the Project for On-Board Autonomy 2 (PROBA2) spacecraft. We discuss the origins of our technique, its implementation and key user-configurable parameters, and highlight its effects on data via a series of examples. We discuss the filter’s strengths in a data environment in which wide field-of-view observations that specifically target the low signal-to-noise middle corona are newly available and expected to grow in the coming years.
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Astronomy And Astrophysics Space And Planetary Science
Source:

Solar Physics, 298(7)
DOI:

https://doi.org/10.1007/s11207-023-02183-w
ISSN:

0038-0938;1573-093X;
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PDF
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Springer Science and Business Media LLC
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Journal Article
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https://creativecommons.org/licenses/by/4.0
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CC BY
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Submitted
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urn:sha256:601024383144f855de1a04b6739c03b93e4a8ee833868d085f2c05c6bd9f1bbe
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The SWAP Filter: A Simple Azimuthally Varying Radial Filter for Wide-Field EUV Solar Images

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