EOMF-05. robspack, a fast R package to read, process and plot NOAA/GML ObsPack

Abstract
Observations of greenhouse gas emissions are critical to monitor the state of the atmosphere, quantify present and historical emissions, and understand global climate change. Observation Package (ObsPack) is a specific format to deliver atmospheric measurements data of trace gasses (Masarie, Peters, Jacobson, & Tans, 2014). However, processing ObsPack products (i.e. GLOBALVIEW) and selecting specific observations for modeling purposes can be cumbersome, as they generally contain hundreds of files. Hence, we developed an open-source R package “robspack” to read, process and plot NOAA/GML ObsPack products. We used an CH4 ObsPack as an example in our code. But it can be easily modified to process ObsPack products for other greenhouse gasses.