NON-STATIONARY APPROACH TO AT-SITE FLOOD FREQUENCY MODELLING II. WEIGHTED LEAST SQUARES ESTIMATION

dc.contributor.author	Strupczewski W.G.
dc.contributor.author	Kaczmarek Z.
dc.date.accessioned	2021-03-10T04:26:10Z
dc.date.available	2021-03-10T04:26:10Z
dc.date.issued	2001
dc.identifier	https://www.elibrary.ru/item.asp?id=689462
dc.identifier.citation	Journal of Hydrology, 2001, 248, 1-4, 143-151
dc.identifier.issn	0022-1694
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/26521
dc.description.abstract	This is the second of the three-part paper and generalises the least squares method to the weighted least squares (WLS) method in order to deal with the trend in the first two moments. The generalised method applies when the assumption of constant variance does not hold and the functional form of a trend in the variance is given. In the generalised method, the parameters of trend in the mean and variance are estimated simultaneously. To keep the weights as power functions of variances only, the restrictions on distribution functions are formulated, which, in fact, are not difficult to fulfil in hydrological studies. It is shown that the WLS method coincides with the maximum likelihood method in the case of the normal distribution.
dc.subject	TIME SERIES
dc.subject	TREND
dc.subject	LEAST SQUARES METHOD
dc.subject	RIVER
dc.subject	FLOODS
dc.subject	FREQUENCY
dc.title	NON-STATIONARY APPROACH TO AT-SITE FLOOD FREQUENCY MODELLING II. WEIGHTED LEAST SQUARES ESTIMATION
dc.type	Статья

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