The document in this data set lists the links to both the released version of the MPAS code, the modified MPAS code and the observational datasets used to evaluate the model updates presented in the publication. High resolution global model output is large and exceeded the limitations of this archive by several orders of magnitude. Thus the document also contains instructions on where the data resides, the data format, and how to obtain these data. This dataset is associated with the following publication: Campbell, P., J. Bash, J. Herwehe, and R. Gilliam. Impacts of tiled land cover characterization in the Model for Predictions Across Scales-Atmosphere (MPAS-A). JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES. American Geophysical Union, Washington, DC, USA, 125(15): e2019JD032093, (2020).