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Campo DC | Valor | Idioma |
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dc.contributor.author | Sánchez Marcos, Ignacio | es_ES |
dc.contributor.author | Zapata Ruiz, María Valvanera | es_ES |
dc.contributor.author | Faci González, José María | es_ES |
dc.contributor.author | Martínez Cob, Antonio | es_ES |
dc.date.accessioned | 2011-07-19T08:30:35Z | es_ES |
dc.date.available | 2011-07-19T08:30:35Z | es_ES |
dc.date.issued | 2011 | es_ES |
dc.identifier.citation | Sánchez, I., Zapata, N., Faci, J.M. and Martínez-Cob, A. "The spatial variability of the wind in a sprinkler irrigated district: implications for irrigation management". Biosystems engineering, 2011, vol. 109, nº 1, p. 65-76 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10532/1614 | es_ES |
dc.description.abstract | The spatial variability of the wind in the Montesnegros Irrigation District (MID), in Spain, has been analysed. From a wind series (2004-2007) registered by the reference weather station, a windspeed > 2 m s-1 was observed about 50% of the time. During these periods about 70% of the time it blew from the northwest (known as the Cierzo). Wind was monitored at the reference site and at 17 sites throughout the MID. Using regression a series of the local wind velocities for the irrigation seasons 2004 to 2007 were estimated from the reference station data. Wind exposure for 39% of the MID area was found to be similar to that of the reference site; 25% were less exposed and 36% considerably more exposed. The spatial variability of the wind was used to calculate the suitable time for irrigation (STI, %) using Ador-Sprinkler software. STI was simulated for different irrigation systems and strategies: standard - Christiansen's uniformity coefficient (CUC) > 84% and wind drift and evaporation losses (WDEL) ≤ 20%), restrictive - CUC ≥ 90% and WDEL ≤ 15% and relaxed - CUC > 80% and WDEL ≤ 25%. At the reference site, STI varied from 50 to 56% of the total time during the irrigation season time for standard strategy, from 68 to 77% for the relaxed strategy and 8 to 30% for the restrictive strategy. Excluding the restrictive strategy, the least exposed sites averaged 14% greater STI than the most exposed sites | es_ES |
dc.language.iso | en | es_ES |
dc.subject | Sprinkler | es_ES |
dc.subject | Wind | es_ES |
dc.subject | Uniformity | es_ES |
dc.subject | Water losses | es_ES |
dc.subject | Management | es_ES |
dc.subject.other | Aspersores | es_ES |
dc.subject.other | Riego por aspersión | es_ES |
dc.subject.other | Daños por el viento | es_ES |
dc.subject.other | Viento | es_ES |
dc.subject.other | Gestión | es_ES |
dc.subject.other | Suelos y riegos | es_ES |
dc.title | The spatial variability of the wind in a sprinkler irrigated district: implications for irrigation management | es_ES |
dc.type | Preprint | es_ES |
Aparece en las colecciones: | [DOCIART] Artículos científicos, técnicos y divulgativos |
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