MAY 2002 AMERICAN METEOROLOGICAL SOCIETY | T he complex topography of the western United States produces a variety of thermally and dynamically driven wind systems. Historically, the knowledge and understanding of these systems has been limited by a number of factors, including a lack of observational data. In the Intermountain West (IW, Fig. 1), the elevated semiarid area between the Cascade–S...

We examine the climatological diurnal cycle of surface air temperature in a 6-km resolution atmospheric simulation of Southern California from 1995 to the present. We find its amplitude and phase both have significant geographical structure. This is most likely due to diurnally-varying flows back and forth across the coastline and elevation isolines resulting from the large daily warming and co...

The paper contains a preliminary study of the sea breeze at Thumba (08°32' N, 76° 52'E) based on observations 392 days, spread over period three years (1963-1966).
 
 Analysis hourly wind observation reveals that northeasterly or northerly land is replaced by westerly southwesterly before mid-day during October to May it also seen November April are favoured most Thumba. Southerly set...

T he mesoscale atmospheric flow near coastlines with rugged, steep terrain is often very complex and can be quite intense (Young and Winstead 2005). During the cool season, extratropical cyclones over the Pacific Ocean frequently make landfall along the southeast coast of Alaska. Interaction of these synoptic-scale disturbances with the steeply rising coastal terrain (see Fig. 1) can produce st...

Numerical simulations and surface-based observations how that katabatic winds persistently converge toward and blow across the Siple Coast part of West Antarctica onto the Ross Ice Shelf. About 14% of the time during winter (April to August 1988), thermal infrared satellite images reveal the horizontal propagation of this negatively buoyant katabatic airstream for al•out 1000 km across the ice ...

The Adélie Land coastal region of Antarctica is one of the most prominent cyclogenesis regions in the Southern Hemisphere, and is adjacent to the continent’s most intense katabatic wind regime. However, the physical mechanisms responsible for cyclogenesis are not known. A manual analysis of cyclogenesis for the 2003–2005 period using output from the Antarctic Mesoscale Prediction System (AMPS) ...

Spaceborne SAR images acquired over the ocean in conjunction with weather radar images are well suited to study atmospheric fronts in coastal areas. In this paper we confine ourselves to study quasi-stationary atmospheric fronts off the east coast of Taiwan which are located typically 3070 km offshore. These quasistationary atmospheric fronts were first detected on ERS SAR images [5]. In [5] we...