Open AccessProbabilistic Models of Maximum Precipitation for Designing Sewerage
Author(s) -
A. Kotowski,
Bartosz Kaźmierczak
Publication year - 2013
Publication title -
journal of hydrometeorology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.733
H-Index - 123
eISSN - 1525-755X
pISSN - 1525-7541
DOI - 10.1175/jhm-d-13-01.1
Subject(s) - precipitation , environmental science , probabilistic logic , quantitative precipitation forecast , sewerage , statistical model , interval (graph theory) , meteorology , climatology , statistics , mathematics , geography , geology , environmental engineering , combinatorics
Pluviographic measurement results from the Institute of Meteorology and Water Management (IMGW) Wrocław–Strachowice meteorological station from the years 1960–2009 constitute the basis for this paper. While conducting the statistical analysis of precipitation occurrence frequency, the criterion of interval precipitation amounts was assumed in order to isolate the intensive rainfalls from the pluviograms, which made it possible to select a number of the most intensive rainfalls in each year. A total of 514 synthetic rainfall instances were isolated, which were then were arranged according to non-increasing amounts in 16 duration intervals. This was the basis to propose the unification of the development methodology of probabilistic models for maximum precipitation amounts, reliable in the designing and verification of drain flow capacity, especially for low probability of precipitation occurrence. Maximum precipitation models for Wrocław were developed (average annual precipitation H = 590 mm).