J. Marcus Hughes
    • Posts
    • Welcome
    • Anomaly Detection
      • Atypicality
      • Axis-aligned RRCF artifacts
      • goal of nonstationary
      • Mostly noise training
    • Assorted Coding
      • flood
      • inclusion check
      • mood tracking
      • np.sum speeds in Cython
      • sliding puzzles
      • truncating numbers
      • Ulam Warburton
    • Assorted ML
      • TSS vs f1
    • Denoising
      • denoising autoencoder
    • Paper Reading
      • State of Astro-informatics
    • Photography
      • New Instagram
    • Solar
      • EUI artifact
      • HEK thematic maps
      • SUVI calendar heatmap
      • Thematic Map Paper
    • Teaching
      • peer review activity
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    SUVI calendar heatmap

    Introduction The Solar Ultraviolet Imager (SUVI) aboard NOAA’s GOES takes pictures of the Sun in 6 ultraviolet passbands. They’re quite stunning and are used for space weather monitoring and prediction. (I was lucky enough to get to work with them in my previous job at NOAA.) To make them more useful, the imager takes long and short length exposures and then composites them together as a Level 2 composite image product.

    May 20, 2022 Read
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    EUI Artifact Analysis

    Introduction The Extreme Ultraviolet Imager (EUI) aboard the ESA/NASA Solar Orbiter mission takes pictures of the Sun in ultraviolet wavelengths. Above you can see an annotated version of one of these images. Specifically this is the image with filename solo_L1_eui-fsi174-image_20210224T013042238_V02.fits. Notice the artifacts where above and below the solar disk there are darkened stripes. It’s my understanding from a colleague that the cause of these stripes is unknown and they still need to be corrected in the data.

    April 1, 2022 Read
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    Paper published: Real-time solar image classification: Assessing spectral, pixel-based approaches

    This was my first first-author paper! It talks about doing semantic segmentation on the Sun. Here’s the link.

    November 16, 2019 Read
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    Generate Thematic Maps from Heliophysics Event Knowledgebase

    The below script will allow you to generate thematic maps from the valuable Heliophysics Event Knowledgebase (HEK). I have written it to take a SUVI thematic map as input and output only Spatial Possibilistic Clustering Algorithm (SPoCA) coronal hole and bright region patches in HEK but would be willing to help assist others to modify the script as needed. Expert labeled map SPoCA map from HEK The script can be found below and bundled with smachy, my solar image segmentation toolkit.

    February 25, 2019 Read
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    Contact me:
    • hughes.jmb@gmail.com
    • 1-270-704-3055

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