Pub Date : 1900-01-01DOI: 10.5154/r.inagbi.2020.11.085
Edgar Merino-Jiménez, L. A. Ibáñez-Castillo, Ramón Arteaga-Ramírez, M. Vázquez-Peña
Introduction: Mexico uses hydrological models to determine floods, evaluate land use change scenarios, evaluate climate change scenarios, and define federal zones, among other applications. However, the models are rarely calibrated beforehand, which increases uncertainty in the design of structures and hydraulic standards. Objective: To build a hydrological model for the watershed of the Fuerte River, Mexico, of extreme rainfall events occurred in 2009, 2011, 2015, 2016 and 2017. Methodology: Five extreme rainfall events were considered for this study. The hydrologic model was design using the HEC-HMS program, and calibrated at the Tubares hydrometric station. The runoff curve number methodology and the Clark unit hydrograph were used. Results: The results collected in four of the five events were positive; the Nash-Sutcliffe efficiency (NSE) ranged between 0.22 and 0.52. The temporal behavior of the river, at times when it moved away from the flow value, preserved the variation trend. Limitations of the study: The study reaches the Tubares hydrometric station, Chihuahua, without including the downstream dams in Sinaloa. Originality: There are few hydrological studies that generate a calibrated and, therefore, reliable hourly model. Conclusions: The hourly hydrologic model had an acceptable performance in four of the five predicted events in terms of NSE and root mean square error (RMSE).
{"title":"Hourly hydrologic modeling in the upper basin of the Fuerte River, Sinaloa, Mexico","authors":"Edgar Merino-Jiménez, L. A. Ibáñez-Castillo, Ramón Arteaga-Ramírez, M. Vázquez-Peña","doi":"10.5154/r.inagbi.2020.11.085","DOIUrl":"https://doi.org/10.5154/r.inagbi.2020.11.085","url":null,"abstract":"Introduction: Mexico uses hydrological models to determine floods, evaluate land use change scenarios, evaluate climate change scenarios, and define federal zones, among other applications. However, the models are rarely calibrated beforehand, which increases uncertainty in the design of structures and hydraulic standards. Objective: To build a hydrological model for the watershed of the Fuerte River, Mexico, of extreme rainfall events occurred in 2009, 2011, 2015, 2016 and 2017. Methodology: Five extreme rainfall events were considered for this study. The hydrologic model was design using the HEC-HMS program, and calibrated at the Tubares hydrometric station. The runoff curve number methodology and the Clark unit hydrograph were used. Results: The results collected in four of the five events were positive; the Nash-Sutcliffe efficiency (NSE) ranged between 0.22 and 0.52. The temporal behavior of the river, at times when it moved away from the flow value, preserved the variation trend. Limitations of the study: The study reaches the Tubares hydrometric station, Chihuahua, without including the downstream dams in Sinaloa. Originality: There are few hydrological studies that generate a calibrated and, therefore, reliable hourly model. Conclusions: The hourly hydrologic model had an acceptable performance in four of the five predicted events in terms of NSE and root mean square error (RMSE).","PeriodicalId":132972,"journal":{"name":"Ingeniería Agrícola y Biosistemas","volume":"96 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132247464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.5154/r.inagbi.2021.07.070
Gerónimo García-Rivera, M. Cadena-Zapata, Juan López-López, G. López-López, Santos Gabriel Campo-Magaña, A. Zermeño-González, H. Gutiérrez-Flores
Introduction: Slippage is usually measured with a standard manual method, however, if it is required slippage information inline in extensive areas of cropland, mechanical and electronic equipment have to be developed. Objective: To design, assemble and evaluate (in laboratory and under field conditions) an encoder-based slippage measurement system. Methodology: The system was integrated and tested in the laboratory, where equations were generated to calculate the slippage. The system was installed in an agricultural tractor and its performance was evaluated on an asphalt track and working with tillage implements on various soil conditions. Results: The values obtained with the manual method and the encoder-based method showed very small differences. The results of field evaluation of the system are in congruence with the type of implement and with the moisture content in the soil. This indicates that the measurement of distances by the wheel turns and the calculation of the percentage of slippage are correct. Study limitations: The system was tested in short runs (up to 100 m). Still to be tested in at least 1 ha. Originality: Automated slippage measurement in extended crop areas. Conclusions: The slippage measurement system based on encoders is reliable for automatically measuring the slippage of agricultural tractor in different field conditions.
{"title":"Agricultural tractor slippage measurement system using encoders","authors":"Gerónimo García-Rivera, M. Cadena-Zapata, Juan López-López, G. López-López, Santos Gabriel Campo-Magaña, A. Zermeño-González, H. Gutiérrez-Flores","doi":"10.5154/r.inagbi.2021.07.070","DOIUrl":"https://doi.org/10.5154/r.inagbi.2021.07.070","url":null,"abstract":"Introduction: Slippage is usually measured with a standard manual method, however, if it is required slippage information inline in extensive areas of cropland, mechanical and electronic equipment have to be developed. Objective: To design, assemble and evaluate (in laboratory and under field conditions) an encoder-based slippage measurement system. Methodology: The system was integrated and tested in the laboratory, where equations were generated to calculate the slippage. The system was installed in an agricultural tractor and its performance was evaluated on an asphalt track and working with tillage implements on various soil conditions. Results: The values obtained with the manual method and the encoder-based method showed very small differences. The results of field evaluation of the system are in congruence with the type of implement and with the moisture content in the soil. This indicates that the measurement of distances by the wheel turns and the calculation of the percentage of slippage are correct. Study limitations: The system was tested in short runs (up to 100 m). Still to be tested in at least 1 ha. Originality: Automated slippage measurement in extended crop areas. Conclusions: The slippage measurement system based on encoders is reliable for automatically measuring the slippage of agricultural tractor in different field conditions.","PeriodicalId":132972,"journal":{"name":"Ingeniería Agrícola y Biosistemas","volume":"770 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130621868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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