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RISCoastal Lows along the Subtropical West Coast of South America: Numerical Simulation of a Typical Case
Publisher: American Meteorological Society
Abstract: Subsynoptic, warm core low pressure areas are frequently observed along the west coast of subtropical South America during austral winter. These so-called coastal lows (CLs) tend to develop as an upper-air, midlatitude ...
Episodes of Strong Flow down the Western Slope of the Subtropical Andes
Publisher: American Meteorological Society
Abstract: Nocturnal flows down the narrow Andean valleys within the western slope of the subtropical Andes (central Chile) are episodically enhanced by easterly downslope winds that flow into the Santiago basin over the radiatively ...
Detecting Subtle Seasonal Transitions of Upwelling in North-Central Chile
Publisher: American Meteorological Society
Abstract: iological productivity in the ocean along the Chilean coast is tied to upwelling that is primarily forced by equatorward wind stress and wind stress curl on the ocean surface. Southerly alongshore flow is driven by the ...
Circulation and Low-Frequency Variability near the Chilean Coast: Remotely Forced Fluctuations during the 1991–92 El Niño
Publisher: American Meteorological Society
Abstract: Results are reported from the first long, recording current meter observations over the slope off Chile. These observations, at 30°S during the 1991?92 El Niño event, are analyzed together with observations of currents at ...
Coastal Lows along the Subtropical West Coast of South America: Mean Structure and Evolution
Publisher: American Meteorological Society
Abstract: The typical conditions of the eastern boundary of the subtropical anticyclone [e.g., well-defined marine boundary layer (MBL), equatorward low-level flow] that prevail along the mountainous west coast of subtropical South ...
Southeast Pacific Stratocumulus: High-Frequency Variability and Mesoscale Structures over San Félix Island
Publisher: American Meteorological Society
Abstract: Stratocumulus cloud cover patterns and their relationship to drizzle were characterized at San Felix Island (SFI; 26.5°S, 80°W) in the southeast Pacific Ocean. Small closed, large closed, and open cells were identified in ...
Assessing the Influence of the MJO on Strong Precipitation Events in Subtropical, Semi-Arid North-Central Chile (30°S)
Publisher: American Meteorological Society
Abstract: nnual precipitation in subtropical, semiarid north-central Chile (30°S) during rainy years comprises a few (3?5) strong events in the fall and winter, which are presumably modulated by the Madden?Julian oscillation (MJO). ...
The Low-Level Atmospheric Circulation near Tongoy Bay–Point Lengua de Vaca (Chilean Coast, 30°S)
Publisher: American Meteorological Society
Abstract: trong southerly, terrain parallel winds often occur along the coast of north-central Chile (25°?35°S) embedded in the marine atmospheric boundary layer and the lower part of the capping temperature inversion. Their offshore ...
The Coastal Boundary Layer at the Eastern Margin of the Southeast Pacific (23.4°S, 70.4°W): Cloudiness-Conditioned Climatology
Publisher: American Meteorological Society
Abstract: A basic climatological description of 29 years of surface and upper-air observations at a coastal site (23.4°S, 70.4°W) in northern Chile is presented. The site is considered to be generally representative of the eastern ...
Terral de Vicuña, a Foehnlike Wind in Semiarid Northern Chile: Meteorological Aspects and Implications for the Fulfillment of Chill Requirements in Deciduous Fruit Trees
Publisher: American Meteorological Society
Abstract: he terral de Vicuña is a warm and dry wind that flows down the Elqui Valley in north-central Chile typically at dawn and early morning. Given that most terral episodes occur in austral winter when chill accumulation by ...