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  • 1
    Electronic Resource
    Electronic Resource
    Estimation theory in hydrology and water systems
    Amsterdam : Elsevier
    Journal of Hydrology 163 (1994), S. 195-196 
    Details
    ISSN: 0022-1694
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Architecture, Civil Engineering, Surveying , Geography , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-1694(94)90029-9
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Towards a systematic approach to comparing distributions used in flood frequency analysis
    Amsterdam : Elsevier
    Journal of Hydrology 142 (1993), S. 121-136 
    Details
    ISSN: 0022-1694
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Architecture, Civil Engineering, Surveying , Geography , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-1694(93)90008-W
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  • 3
    Electronic Resource
    Electronic Resource
    Parameter estimation for the Pearson type 3 distribution using order statistics (Durans, 1992) - Comment
    Amsterdam : Elsevier
    Journal of Hydrology 153 (1994), S. 417-424 
    Details
    ISSN: 0022-1694
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Architecture, Civil Engineering, Surveying , Geography , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-1694(94)90201-1
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  • 4
    Electronic Resource
    Electronic Resource
    DISCUSSION (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 13 (1977), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1977.tb02070.x
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  • 5
    Electronic Resource
    Electronic Resource
    A METHOD FOR ESTIMATING PEAK WATER DEMAND OF MULTIFAMILY RESIDENCES (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 16 (1980), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : The importance of estimating peak water demands for determining the dimensions of pipe size and meters which provide household water to multifamily residences is examined. Several methods utilized in North America and Europe are examined. The analysis makes clear the necessity of studying the peak water demand through statistics based on local data concerning multifamily residences. For different periods of return, the peak demand of a given apartment building is related to its size (the number of apartments) in order to compare the results obtained with existing formula.By use of Ridge-regression technique, the relationship between peak water demand, and building size (number of apartments) and available pressure is established. It can be concluded that peak demand can be estimated with the square root of number of apartment units in the building and the cube root of water pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1980.tb02456.x
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  • 6
    Electronic Resource
    Electronic Resource
    Detection of changes in precipitation and runoff over eastern Canada and U.S. using a Bayesian approach (1999)
    Springer
    Stochastic environmental research and risk assessment 13 (1999), S. 201-216 
    Details
    ISSN: 1436-3259
    Keywords: Key words: Bayesian methods ; climatic variability ; change-point ; Bayes factor ; time series ; hydrology.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Notes: Abstract. Inference about the existence and characteristics of changes in mean level of hydrometeorological sequences that may be generated by climatic variability is an important step before developing management rules in water resources systems. This paper presents a Bayesian approach, based on a single shifting model, which can be used to study a change in the mean level of a set of independent normal random variables. Two different problems are considered: the first is the detection of a change, while the second is the estimation of the change-point and its amplitude under the assumption that a change has occurred. This method is applied to precipitation and runoff data series over eastern Canada and U.S. during the twentieth century. The main results show an increase in the late sixties in the Eastern North American precipitation. This supports conclusions drawn from a number of studies which identified the late sixties to early seventies as a period of possible change.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004770050039
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  • 7
    Electronic Resource
    Electronic Resource
    Retrospective multivariate Bayesian change-point analysis: A simultaneous single change in the mean of several hydrological sequences (2000)
    Springer
    Stochastic environmental research and risk assessment 14 (2000), S. 243-261 
    Details
    ISSN: 1436-3259
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Notes: Abstract.  Although hydrological time series for different sites in a given region are usually correlated and that climate changes should have a regional impact on water resources, very little has appeared in the literature about multivariate change-point analysis. This paper generalizes the univariate Bayesian approach for the detection of a single shift in the mean level to study a change in the mean-vector of a sequence of multivariate normal vectors. Two different problems are considered: the first one is the estimation of the unknown regional change-point under the hypothesis that a shift occurred, while the second one is the overall assessment of change versus no change. This method is illustrated by an application to streamflow data series for six rivers situated in the Northern Québec Labrador region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004770000051
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  • 8
    Electronic Resource
    Electronic Resource
    The generalized method of moments as applied to the generalized gamma distribution (1988)
    Springer
    Stochastic environmental research and risk assessment 2 (1988), S. 161-174 
    Details
    ISSN: 1436-3259
    Keywords: Floods ; estimation ; quantiles ; generalized gamma ; generalized moments ; standard error
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Notes: Abstract The generalized gamma (GG) distribution has a density function that can take on many possible forms commonly encountered in hydrologic applications. This fact has led many authors to study the properties of the distribution and to propose various estimation techniques (method of moments, mixed moments, maximum likelihood etc.). We discuss some of the most important properties of this flexible distribution and present a flexible method of parameter estimation, called the “generalized method of moments” (GMM) which combines any three moments of the GG distribution. The main advantage of this general method is that it has many of the previously proposed methods of estimation as special cases. We also give a general formula for the variance of theT-year eventX T obtained by the GMM along with a general formula for the parameter estimates and also for the covariances and correlation coefficients between any pair of such estimates. By applying the GMM and carefully choosing the order of the moments that are used in the estimation one can significantly reduce the variance ofT-year events for the range of return periods that are of interest.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01550839
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  • 9
    Electronic Resource
    Electronic Resource
    Two kinds of moment ratio diagrams and their applications in hydrology (1993)
    Springer
    Stochastic environmental research and risk assessment 7 (1993), S. 41-65 
    Details
    ISSN: 1436-3259
    Keywords: Moment ratio diagrams ; Log-Pearson Type III ; Generalized Gamma ; geometric mean ; harmonic mean
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Notes: Abstract We refocus attention on moment ratio diagrams and their uses in hydrology with four major objectives: (1) to summarize the information available in the literature about possible uses of the traditional moment ratio diagram introduced by Karl Pearson, which uses the coefficient of skewness and of kurtosis to compare the shapes of various distributions commonly used in hydrology; (2) to complete this traditional MRD by integrating into it the regions occupied by the log-Pearson Type III and generalized gamma distributions which are more and more used in hydrology; (3) to present another MRD which uses ratios of moments of orders −1 (harmonic mean), quasi zero (geometric mean) and 1 (arithmetic mean); (4) to stress the need to consider the different MRD's (along with the more recently introduced L-moment ratio diagrams) as complementary tools for choosing between distributions fitted to hydrologic data. Finally, using Monte Carlo simulation we compare the two types of diagrams as tools to identify and discriminate between different distributions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01581566
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  • 10
    Electronic Resource
    Electronic Resource
    Reply (1989)
    Springer
    Stochastic environmental research and risk assessment 3 (1989), S. 69-69 
    Details
    ISSN: 1436-3259
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01543429
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