# Mars: Orbital Angular Momentum for Orbit-Spin Coupling Studies of GDS

## Description

These data accompany the JGR-Planets paper by Shirley et al. (2019JE006077), which is a study of the historic record of global-scale dust storms (GDS) on Mars. Calculation of the dynamical quantities is described in the above cited paper and in Shirley, J.H. (2017). Orbit-spin coupling and the circulation of the Martian atmosphere, Planetary and Space Science 141, 1–16. doi: 10.1016/j.pss.2017.04.006 and in Mischna, M. A., & Shirley, J. H. (2017). Numerical Modeling of Orbit-Spin Coupling Accelerations in a Mars General Circulation Model: Implications for Global Dust Storm Activity, Planetary and Space Science 141, 45–72. doi: 10.1016/j.pss.2017.04.003. Archived files include one PDF file with Supplementary Information and one Excel spreadsheet with time series of ecliptic coordinates of the time derivatives of the Martian orbital angular momentum with respect to the solar system barycenter for the years 1870-2030. These data were used for the plots and analyses of (2019JE006077).