HAO Research Highlights

Model output from the analysis of Carrington rotation 1912
December 28, 2017

Mausumi Dikpati explains the challenge of creating synoptic maps of the photosphere that reliably reflect conditions at all locations concurrently is a major limitation to progress in this area.

The evolution of the total daily (black) and hemispheric sunspot numbers
December 28, 2017

In 2011, three satellites—the Solar-Terrestrial RElations Observatory (STEREO) A & B, and the Solar Dynamics Observatory (SDO)—were in a unique spatial alignment that allowed a 360 degree view of the Sun. This alignment lasted until 2014, the peak of solar cycle 24.

Magnetic field amplification in exploding granules image
December 13, 2017

Magnetic field amplification in exploding granules and the role of deep and shallow recirculation

Field line connectivity and associated pressure perturbation image
December 13, 2017

There have been a number of reports in the literature of counter-Evershed flows in well developed sunspot penumbrae, i.e. flows directed towards the umbra.

Total electron content (TEC)
December 7, 2017

Plain Language Summary or Abstract: Whole atmosphere models offer the opportunity to improve specification and forecasting of the upper atmosphere through incorporating the effects of forcing from both the lower atmosphere as well as the Sun.

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