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Computational environment HYDRO-PATH as a flexible tool for operational rainfall-runoff model design

Tokarczyk T., Szalińska W., Tiukało A., Jełowicki J., Chorążyczewski A.

Meteorology Hydrology and Water Management. Research and Operational Applications

2016

Vol. 4, Iss. 1

65--77

The overall objective of the ongoing work is to develop the computational environment HY DRO-PATH as a flexible tool for forecasting runoff from catchment areas for various hydrometeorological conditions while taking into account the information available on a real-time basis. Ensuring the model’s operational reliability and reducing the uncertainty of generated forecasts is accomplished through the adjustment of both the internal structure of the model and the spatial representation of the computational grid to the physiographical, hydrological and climatological characteristics of a given basin. The research focused on the development of methods for selecting the optimal model structure and parameters by analysing the results obtained for different model structures. This is achieved through the computational environment, in which it is possible to implement different types of hydrological rainfall-runoff models. These models have a unified system of data input, parameter optimisation rules, and procedures for result generation. The developed elements of the computational environment correspond to generation potential of models with a given structure and complexity. Furthermore, within the framework of HY DRO-PATH the following components were developed: an application programming interface (API), a data assimilation module, a module for computational representation of a real object, and a module for the estimation and optimisation of model parameters. The developed computational environment was applied to prepare a version of TOPO-Flex and perform hydrological validation of the model’s results. The hydrological validation was performed for selected flood events in the Bystrzyca Dusznicka subbasin of the Nysa Kłodzka River.

An attempt at mathematical modelling of the process of microbiological biodegradation of diesel oil

Hawrot-Paw M., Nowak A.

Environment Protection Engineering

2012

Vol. 38, nr 3

23--29

A mathematical model has been created describing the process of biodegradation of diesel oil. Data for model development were obtained from two previously conducted laboratory experiments. The correlation between the measured and calculated of the biodegradation of diesel fuel data indicates the existing connection between them. It was found that the proposed mathematical approach of the biological process showed similar direction and nature of changes occurring in these two data sets.

A multicriteria a multistage model of development of the road network

Łukasik S.

Zeszyty Naukowe. Transport / Politechnika Śląska

2003

z. 51

365-372

Praca dotyczy planowania rozwoju regionalnej sieci drogowej. Zaproponowano w niej wieloetapowy model rozwoju, opisujący ewolucję grafu tej sieci w zakresie przyjętego horyzontu czasu, odpowiadające im zmiany natężeń ruchu pojazdów oraz zmiany wskaźników funkcjonalności transportowej. Modelowane decyzje dotyczą modernizacji istniejących elementów sieci oraz budowy nowych jej elementów. Rozpatrzono dwupoziomowy algorytm optymalizacji strategii rozwoju sieci, przy zakładanych wielkościach finansowania. Na poziomie wyższym wyznaczany jest stan docelowy na końcu horyzontu czasowego, natomiast na poziomie niższym rozwiązywane jest zadanie optymalnego planowania operacji inwestycyjnych, dających w finale stan docelowy.

The proposed evaluative methodology is helpful for long-term planning of the development of a regional road network. The approach is based upon two-level discrete multicriteria optimization. The development of the considered network is caused by modification of its existing elements and creation of new elements. The algorithm proposed, combines of a static discrete multicriteria and multistage discrete optimization.