HAO Research Highlights

Kalman filtering image
February 11, 2015

Approximating a model’s “true” state by applying Kalman filtering to solar cycles, a technique first developed in the 1950s and 1960s to help Apollo 11 settle safely on the Moon.

Stackplot of solar-terrestrial data image
February 11, 2015

Recent work on historical recurrent geomagnetic activity and the peculiarity of the recent solar-cycle minimum, was chosen by the editors of AGU journals for special highlight.

September 5, 2014

New observational work provides more information about the evolution of the Sun's interior and origins of its enigmatic 11(-ish) solar cycle. The research potentially opens the door to improved forecasting of decadal-scale solar variability.

Stokes Polarization
February 5, 2014

The Spectro-Polarimeter aboard the Hinode spacecraft was developed jointly by HAO and the Lockheed Martin Solar and Astrophysics Laboratory. This instrument provides continuous, high resolution, high precision measurements of polarization of the Sun.

September 26, 2013

Liang Zhao has authored an Astrophysical Journal paper titled "Two Novel Parameters to Evaluate the Global Complexity of the Sun’s Magnetic Field and Track the Solar Cycle".

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