Anomalous Effects on the Current Evolution in \mbox{DIII-D}

We explore configurations where the current profile formation and evolution exhibit features consistent with non-neoclassical resistive effects or self-organizing mechanisms. In these discharges, evolution of the current density that determines $q$ achieves a stationary configuration where the inductively driven flux diffusion is balanced by external, non-inductively driven current and/or by anomalous flux or current diffusion processes. This stationary evolution of $q$ has been observed in both hybrid and quiescent, high-confinement (QH) modes of operation. By contrasting measurements with the neoclassical evolution, we infer the location and amount of anomalous current diffusion required to maintain these discharges. A hyper-resistive model is applied to provide at least a heuristic understanding of the current evolution observed in QDB modes. We present a combination of experimental data analysis and simulation results using the CORSICA code to demonstrate the anomaly in current profiles and their evolution.