| contributor author | Bernard Bremond | |
| contributor author | Bruno Molle | |
| date accessioned | 2017-05-08T20:48:11Z | |
| date available | 2017-05-08T20:48:11Z | |
| date copyright | September 1995 | |
| date issued | 1995 | |
| identifier other | %28asce%290733-9437%281995%29121%3A5%28347%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/27680 | |
| description abstract | A simulation model of rainfall under center pivots was used to elevate center-pivot testing procedures. The model calculates rainfall parameters such as weighted mean and uniformity coefficient for various scenarios including the case of a voluntarily disrupted machine. Observed variations in rainfall parameters suggested modifications to standard procedures in order to improve accuracy. Those modifications include staggering rain-gauge position on the two radii of measure and a uniformity coefficient derived from a coefficient of variation calculated on weighted values, theoretically more sensitive than existing approaches. Such a procedure has been proposed as an improvement over the draft international standard ISO/TC23/SC18/DIS 11545, “Agricultural Irrigation Equipment—CentrePivot and Moving Lateral Irrigation Machines Equipped with Sprayer or Sprinkler Nozzles—Determination of Uniformity of Water Distribution.” | |
| publisher | American Society of Civil Engineers | |
| title | Characterization of Rainfall under Center Pivot: Influence of Measuring Procedure | |
| type | Journal Paper | |
| journal volume | 121 | |
| journal issue | 5 | |
| journal title | Journal of Irrigation and Drainage Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9437(1995)121:5(347) | |
| tree | Journal of Irrigation and Drainage Engineering:;1995:;Volume ( 121 ):;issue: 005 | |
| contenttype | Fulltext | |
