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Being the parent distribution in Romania, the Pearson III distribution (PE3) is one of the statistical distributions that is most frequently used in flood frequency analysis (FFA). All the components required for the simple implementation of PE3 distribution in FFA are presented in this manuscript. The estimated methods and exact and approximate relationships for estimating the parameters and frequency factors particular to the distribution are described. All of these factors are used to identify maximum flows with various annual exceedance probabilities, using data collected at the 6 rivers with different morphometric characteristics and different lengths of data series. Five parameter estimation techniques are used in this comparative analysis, i.e. the method of ordinary moments (MOM), the method of linear moments (L-moments), the high-order linear moments method (LH-moments), the method of maximum likelihood (MLE) and the method of least squares (LSM). Given the results, it can be assumed that the L-moments approach is more reliable, stable, robust and less sensitive to variations in recorded data lengths, as well as to the presence of outliers. [ABSTRACT FROM AUTHOR]

Since hydrotechnical is a broad topic, the peer review process is extremely important in maintaining the quality and validity of technical government regulations. Peer review is necessary to improve government technical regulations in the hydrotechnical field, as it is observed from ISI articles on some of these regulations which are characterized by eclecticism. A primary challenge in peer review is finding specialists who are capable of reviewing technical documents. This challenge is also relevant regarding government regulations. Solutions to this challenge include maintaining a database of academic specialists, incentives to participate, and encouraging collaboration between agencies and academic institutions. Disclosure of the reviewers’ identities and the provision of guidelines for the review process of technical regulations should be a priority of the relevant authorities, as it would promote transparency. Regulations should be designed as adaptable and responsive to changes and new information in ored to address the dynamic nature of hydrotechnical issues. [ABSTRACT FROM AUTHOR]