Academic Journal
Effect of temporal resolution of wind data on wind erosion prediction with the revised wind erosion equation (RWEQ)
| العنوان: | Effect of temporal resolution of wind data on wind erosion prediction with the revised wind erosion equation (RWEQ) |
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| المؤلفون: | Juan E Panebianco, Daniel E Buschiazzo |
| المصدر: | Ciencia del Suelo, Vol 31, Iss 2, Pp 189-199 |
| بيانات النشر: | Asociación Argentina de la Ciencia del Suelo. |
| المجموعة: | LCC:Agriculture (General) LCC:Plant culture |
| مصطلحات موضوعية: | predicción de la erosión eólica, datos de viento, energía eólica, rweq, Agriculture (General), S1-972, Plant culture, SB1-1110 |
| الوصف: | In wind erosion modelling and assessment, wind speed is a crucial variable. Available records for large regions of the world generally show relatively low temporal resolution. The effect of using wind data of different temporal resolutions in RWEQ discrete and continuous versions was assessed. Wind erosion was measured during 82 high-wind events occurring between 2005 and 2008. Simulated and measured erosion values were compared. For wind erosion simulation during discrete periods, the model was loaded with wind speeds averaged in 5 minutes and 1 hour- intervals. For continuous simulation, a weather file for RWEQ/ 97 was developed and Weibull factors were calculated using both hourly and daily wind speeds. When the discrete version of RWEQ was used with hourly wind speeds instead of five-minute averages, the total simulated soil loss was reduced by 44%. The model efficiency was not significantly affected by wind speed data resolution. RWEQ continuous version, loaded with monthly Weibull parameters using hourly wind speeds, calculated zero erosion. Monthly Weibull distribution scale factors calculated using daily wind speeds were reduced by 32% on average with respect to hourly data. Increasing the Weibull scale parameter by up to 50% slightly improved the monthly simulated erosion rates. Using low resolution wind speed data reduces the model outputs. This may be corrected but a large amount of field information is needed. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Spanish; Castilian Portuguese |
| تدمد: | 0326-3169 1850-2067 |
| Relation: | http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1850-20672013000200005&lng=en&tlng=en; https://doaj.org/toc/0326-3169; https://doaj.org/toc/1850-2067 |
| URL الوصول: | https://doaj.org/article/6a9676c8fbb044d09f769b1cf923a6a4 |
| رقم الانضمام: | edsdoj.6a9676c8fbb044d09f769b1cf923a6a4 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 03263169 18502067 |
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