My primary DESC activity has been focused on photometric redshifts (methods, training data, and characterization of the results). I served as inaugural Convener of the DESC Photometric Redshifts working group and inaugural Analysis Coordinator of the collaboration, two terms as Deputy Spokesperson, and now am Co-convener of the DESC External Synergies Working Group. Although my primary focus is DESC, I am also a member of the Galaxies, AGN, and ISSC Science Collaborations.
