The directionality and performance of radio waves are affected by the refractive index atmosphere, which varies in real time depending on location. To reflect domestic weather environment, we developed a radar modeling simulation (M&S) analysis tool constructing generation model, APM, model. We analyzed variations over past five years using station data. For 220 nm-based designs, variation ...

The characteristics of atmospheric low-frequency variability and midlatitude SST variability as simulated by the NCAR Climate System Model are analyzed in the vicinity of the North Paciic and North Atlantic basins. The simulated spatial patterns of variability correspond quite well to those seen in observational datasets, although there are some diierences in the amplitudes of variability. Comp...