A Rainfall Simulator for Laboratory Use in Acidic Precipitation Studies

Chevone, Boris I.; Yang, Yongjie; Winner, William E.; Storks-Cotter, I.; Long, S.

doi:10.1080/00022470.1984.10465755

Cited by 20 publications

(10 citation statements)

References 5 publications

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“…A rain simulation device (for more elaborate field-use rainfall simulators see ref [23][24][25] was constructed with two five-needle (18-gauge) sprinkler heads fed by a variable rate peristaltic pump. These heads were positioned 60 cm above the samples.…”

Section: Methodsmentioning

confidence: 99%

Foliar washoff of pesticides by rainfall

Cohen¹,

Steinmetz²

1986

Environ. Sci. Technol.

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Section: Methodsmentioning

confidence: 99%

Foliar washoff of pesticides by rainfall

Cohen¹,

Steinmetz²

1986

Environ. Sci. Technol.

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“…Drip-style rainfall simulators have been used to study the same processes as nozzle-style simulators, typically at a plotscale 63,124,135 . In these simulators, water is channelled to a large number (~168 to 2209) of fine tubes or needles which periodically release droplets due to gravitational forces 125,135 , covering areas from 0.4-9 m 2 119,135,136 . This technique produces droplet sizes ranging from 2.6-3.3 mm in diameter and rainfall intensities ranging from 20-203 mm/hr 63,124 for durations of 0.5-1 hours 133,136 .…”

Section: -Drip-style Rainfall Simulatorsmentioning

confidence: 99%

“…Spatial and temporal variability in droplet distribution similar to natural rainfall (RP5) is an important attribute of dynamic nozzle-based rainfall simulators. The horizontal rotation and sweeping motion of the nozzles used in these simulators may create spatial and temporal variability which is more representative of natural rainfall than stationary nozzles 125 . Increased control and precision of droplet size (RP6) is a benefit of drip-style rainfall simulators.…”

Section: -Comparison Of Key Rainfall Simulation Technique Characteris...mentioning

confidence: 99%

“…Increased control and precision of droplet size (RP6) is a benefit of drip-style rainfall simulators. Droplet size can be altered by changing the gage of the tubes and needles used, allowing for control over droplet diameters 125 and subsequently the kinetic energy of raindrops produced. Direct measurement of water repellency and chemical changes (RP7) is a benefit unique to WDPT tests and leaching.…”

Section: -Comparison Of Key Rainfall Simulation Technique Characteris...mentioning

confidence: 99%

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A review of simulation experiment techniques used to analyze wildfire effects on water quality and supply

Brucker

Livneh

Minear

et al. 2022

Environ. Sci.: Processes Impacts

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“…Two different methods are used to improve the spatial uniformity of a rainfall simulator: a rotating nozzle mechanism and a rotating platform mechanism [13][14][15]. The main difference between these two methods is that the former is used to improve the uniformity of the rainfall environment, while the latter is used to improve the relative uniformity.…”

Section: Rainfall Simulator With a Rotary Platform (Rsrp)mentioning

confidence: 99%

Research on the Fine-Scale Spatial Uniformity of Natural Rainfall and Rainfall from a Rainfall Simulator with a Rotary Platform (RSRP)

et al. 2017

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Abstract:The accurate production of a rainfall environment similar to natural rainfall by a rainfall simulator (RS) is a crucial and challenging task in rainfall instrument testing or calibration. Although the spatial uniformity of rainfall accumulation is a key parameter of an RS, the spatial uniformity comparison between simulated rainfall and natural rainfall, and the spatial uniformity improvements for an RS are scant in the literature. In this study, a fine-scale natural rainfall experiment was studied using the same testing methods of an RS and the rainfall uniformity was evaluated using the Christiansen Uniformity Coefficient (CU). Simultaneously, factors influencing the spatial uniformity of natural rainfall, including the average rainfall accumulation (RA), the deviation of RA, and the area of the test zone, were analyzed. The results successfully reproduced some of the behaviors observed in natural rainfall experiments, showing that CU is dependent on these parameters. Based on these studies, we developed a rainfall simulator with a rotary platform (RSRP) and found that although spatial uniformity of the RSRP was greatly improved using an appropriate rotary speed, it was not consistent with the spatial uniformity of natural rainfall. Furthermore, we tested four tipping-bucket rain gauges using this imperfect RSRP, and found that the RSRP might acquire the instrumental errors associated with RA for a tested rainfall instrument.

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A Rainfall Simulator for Laboratory Use in Acidic Precipitation Studies

Cited by 20 publications

References 5 publications

Foliar washoff of pesticides by rainfall

Foliar washoff of pesticides by rainfall

A review of simulation experiment techniques used to analyze wildfire effects on water quality and supply

Research on the Fine-Scale Spatial Uniformity of Natural Rainfall and Rainfall from a Rainfall Simulator with a Rotary Platform (RSRP)

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