Figure 11 from the paper
Figure 11 from the paper: Composite mean analyses derived from the North American Regional Reanalysis (NARR) 3-h gridded dataset of the (left) 20 strongest vs. (right) 20 weakest cool-season Sierra Barrier Jet cases.
August 26, 2010

HMT Publication Notice

A journal article entitled A Seven-Year Wind Profiler-Based Climatology of the Windward Barrier Jet along California's Northern Sierra Nevada, by Paul J. Neiman, Ellen M. Sukovich, F. Martin Ralph, and Mimi Hughes appeared in the April 2010 issue of Monthly Weather Review, 138, 1206-1233, doi:10.1175/2009MWR3170.1.

Earlier research had identified the important role of the coastal barrier jet in modulating the detailed mesoscale distributions of rainfall in the west coast mountains during orographic precipitation. In addition, forecasters responsible for QPF in and near the Sierra Nevada had indicated in HMT meetings that the Sierra Barrier Jet (SBJ) played a role in modulating orographic precipitation, a conclusion backed up by years of forecasting experience and some suggestive research findings. These factors, and earlier studies from the 1970s that had first documented the presence and some characteristics of the SBJ, motivated further exploration of this phenomenon in the context of HMT's QPF major activity area. The study took advantage of unique long-term observations of the SBJ using boundary layer wind profilers deployed year-round by NOAA/ESRL/PSD over a seven year period, including key support from HMT (for wet seasons) and from air quality projects (for dry seasons). The findings include identification of key relationships between SBJ characteristics (e.g., strength, depth and duration) and the distribution of orographic precipitation across northern California.

 Read the Abstract
404 Not Found

404 Not Found


nginx/1.25.4