In: Journal of Hydrology and Hydromechanics, vol. 66, no. 3
Jinping Zhang - Jiayi Li - Xixi Shi
Details:
Year, pages: 2018, 279 - 284
Keywords:
Luhun irrigation district; Copula function; Reference crop evapotranspiration; Amount of irrigation
water; Encounter probability.
Original source URL: http://www.ih.sav.sk/jhh
About article:
Based on the data series of the annual reference crop evapotranspiration (ET0) and the amount of irrigation
water (IR) from 1970 to 2013 in the Luhun irrigation district, the joint probability distribution of ET0 and IR is established
using the Gumbel-Hougaard copula function. Subsequently, the joint probability, the conditional joint probability,
and the conditional return period of rich−poor encounter situations of ET0 and IR are analysed. The results show that:
(1) For the joint probabilities of rich−poor encounter situations of ET0 and IR, the asynchronous encounter probability is
slightly larger than the synchronous encounter probability. (2) When IR is in rich state or ET0 is in poor state, the conditional
joint probability is larger, and the conditional return period is smaller. (3) For a certain design frequency of ET0, if
the design frequency decreases, the conditional joint probability of the amount of irrigation water will decrease, therefore
the encounter probability of them will decrease. (4) For a certain design frequency of the amount of irrigation water, if
the design frequency decreases, the conditional joint probability of ET0 will increase, thus the encounter probability of
them will increase.
How to cite:
ISO 690:
Zhang, J., Li, J., Shi, X. 2018. Encounter probability analysis of irrigation water and reference crop
evapotranspiration in irrigation district. In Journal of Hydrology and Hydromechanics, vol. 66, no.3, pp. 279-284. 0042-790X (until 2019) .
APA:
Zhang, J., Li, J., Shi, X. (2018). Encounter probability analysis of irrigation water and reference crop
evapotranspiration in irrigation district. Journal of Hydrology and Hydromechanics, 66(3), 279-284. 0042-790X (until 2019) .