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A Rainfall Simulator for the in situ Study of Superficial Runoff and Soil Erosion Chilean J. Agric. Res.
Sangüesa,Claudia; Arumí,José; Pizarro,Roberto; Link,Oscar.
A rainfall simulator is an important tool for the study of runoff generation and soil loss because it can be used either under laboratory conditions, or in disturbed or natural soil. The objective of this study was to describe the design and operation of a rainfall simulator to evaluate soil loss in situ. The rainfall simulator has four full-cone spray nozzles with a Unijet system mounted in a straight line pipe configuration, and easily transported and assembled. Simulated rainfall uniformity was evaluated in the laboratory, whereas the applicability of the simulator in natural soil erosion plot conditions in an experimental field with different slopes was tested by quantifying runoff and evaluating soil erosion. Twenty simulations were carried out in the...
Tipo: Journal article Palavras-chave: Soil erosion; Superficial runoff; Erosion plot; Uniformity of rain.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000100019
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Latitudinal Analysis of Rainfall Intensity and Mean Annual Precipitation in Chile Chilean J. Agric. Res.
Pizarro,Roberto; Valdés,Rodrigo; García-Chevesich,Pablo; Vallejos,Carlos; Sangüesa,Claudia; Morales,Carolina; Balocchi,Francisco; Abarza,Alejandro; Fuentes,Roberto.
The study and analysis of precipitation has become a crucial tool in understanding the temporal and spatial behavior of water resources, in terms of availability and impact on extreme events. The objective of this study was to evaluate different rainfall parameters (intensities for 1-h duration D = 1 h and return periods of T = 5 and 100 yr, and mean annual precipitation) for different latitudinal and climatic zones in Chile. We analyzed the information recorded on thousands of pluvial bands and rain gauges for 49 stations; this because it is unclear how rainfall intensities change along the country (though total amounts do), in addition to a lack of literature focused on ranges and amounts on the behavior of rainfall variables. The Gumbel probability...
Tipo: Journal article Palavras-chave: Precipitation; Frequency-duration-intensity curves; IDF curves; Rainfall intensity.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200014
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