Hornbrook has been a part of many research publications. Below are a list of some of the significant publications from throughout her career.
* Global seasonal distributions of HCN and acetonitrile. 2019. 99th AMS Annual Meeting, American Meteorological Society (AMS). 
* The Deep Convective Clouds and Chemistry (DC3) Field Campaign. 2015. Bulletin of the American Meteorological Society. 
* High levels of molecular chlorine in the Arctic atmosphere. 2014. Nature Geoscience.
* Observations of nonmethane organic compounds during ARCTAS - Part 1: Biomass burning emissions and plume enhancements. 2011. Atmospheric Chemistry and Physics.
* Measurements of tropospheric HO₂ and RO₂ by oxygen dilution modulation and chemical ionization mass spectrometry. 2011. Atmospheric Measurement Techniques.