Multi-scale/Multi-field Turbulence Measurements to Rigorously Test Gyrokinetic Simulation Predictions on \hbox{DIII-D}

The progress in rigorously testing gyrokinetic turbulence simulations through a series of carefully designed experiments is described. A unique array of multi-field, multi-scale turbulence diagnostics is utilized, including new measurements of TEM-scale $\tilde{n}$, turbulence flows, $\tilde{n}_e - \tilde{T}_e$ crossphase, as well as previously available ITG and ETG scale $\tilde{n}$ and low-k $\tilde{T}_e$. Turbulence and transport response to $T_e/T_i$ was quantified for QH-mode, low-rotation Hybrid H-mode, and L-mode cases. Little variation with $T_e/T_i$ of low-k through high-k $\tilde{n}$ was found in L-mode; however, $\tilde{T}_e$ varied strongly. In contrast, low-k $\tilde{n}$ increased substantially with $T_e/T_i$ in the Hybrid H-mode. These and other measurements, including particle transport via gas puff modulation, will be compared to linear and nonlinear gyrokinetic simulations.