This document summarizes a study commissioned by the EPA on opportunities for Irish researchers to participate in the Horizon 2020 topic "SC5-18-2017: Novel in-situ observation systems". The study mapped relevant research excellence and consortiums in Ireland and Europe. It identified 83 relevant projects across databases, including 20 Horizon 2020 projects and 63 FP7 projects. The study found that Irish researchers have been involved in 3 Earth observation projects under Horizon 2020 and 5 under FP7. The document outlines key disciplines and skills needed to develop novel in-situ observation systems and respond to challenges in this area.