On Lee Cyclogenesis and Airflow in the Canadian Rocky Mountains and the East Asian Mountains

Downscaling the hydrological cycle in the Mackenzie basin with the Canadian regional climate model

“…Observations show that this is a relatively frequent phenomenon over the Mackenzie Basin (Chung et al, 1976;Zishka and Smith, 1980), and we might expect that precipitation associated with lee troughs provides an important contribution to the basin hydrological cycle. We have chosen to simulate the month of September in this study, as the autumn is known to be a season of particularly frequent lee cyclogenesis in this region (we chose 1988 to enable a comparison with results from the International Satellite Land Surface Climatology Project (ISLSCP)).…”

Northern Tales: A Synthesis of MAGS Atmospheric and Hydrometeorological Research

“…The polar front is also located near the region and the climatological high pressure ridge is not as strong as during the winter. The general development of MRB lee cyclones and their importance in affecting the weather of the basin and downstream regions has long been known (e.g., Chung et al 1976). When a cyclone from the Gulf of Alaska approaches the west coast of Canada, the onshore flow strengthens and induces a stationary surface trough as the flow crosses and subsides adiabatically over the lee of the Rocky Mountains.…”

A 36-year Climatology of Surface Cyclogenesis in East Asia Using High-resolution Reanalysis Data

“…Such a localization of cyclogenesis is important for the decision of the design of forecast models, including the area of the nested region, horizontal resolution, parameterizations and so on. Chung et al (1976) (hereafter Chung76) analyzed the frequency of cyclogenesis in Northeast Asia with surface weather maps obtained between 1958 and 1959. They indicated that areas of high-frequency cyclogenesis are distributed in the lee of the major mountains, while the most active area is located in the Mongolian Plateau (Fig.…”