Repositorio Digital Marítimo, Fluvial y Costero

González Colville, Patricio. (2004). Behavior of the cold-hours, degree-days, frosts and precipitations in the Region del Maule’s agroecosystems during the events El Niño 1997 y La Niña 1998-1999. El Niño-La Niña 1997-2000. Sus Efectos en Chile.. pp. 231-252.

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Abstract

The behavior of hour-cold, degree-day, frost and precipitation are analized for agroecosystems of the Región del Maule, Chile (around 35º S) for 1997 (El Niño), 1998 and 1999 (La Niña) years. A study of the long-term trend (1960-1999) is included for the three variables mentioned above. Results indicate that El Niño, as well as La Niña cause anomalies on hourcold, degree-day, annual precipitation and frost during the winter. The El Niño-La Niña effects are attenuated throughout the spring as revealed by the degree-days record. It is concluded that regional fruit activity is highly vulnerable to the El Niño-La Niña occurrence. Besides, a long-term behavior on the thermal variables is found, whose main characteristic is to be colder than the 1960-1976 average. From 1977 to 1999 this behavior changes to a warmer condition compared to the climatologic mean.

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Item Type:	Article
Uncontrolled Keywords:	Horas-frío. Heladas. Sequías. Agroecosistemas. Vulnerabilidad. El Niño
Geographical coverage :	Chile
Depositing User:	Alianza Regional del Sistema Mundial de Observación de los Océanos (GOOS) para el Pacífico Sudeste - GRASP
ISSN:	956-235-024-X
Official URL:	http://www.cona.cl/pub/detalle_cientifica.php?pub=...

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