University of Oulu

Hydrodynamic modeling of a complex urban lakes system in nordic region

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Author: Tehseen, Asfand1
Organizations: 1University of Oulu, Faculty of Technology, Environmental Engineering
Format: ebook
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.7 MB)
Pages: 54
Persistent link:
Language: English
Published: Oulu : A. Tehseen, 2022
Publish Date: 2022-07-21
Thesis type: Master's thesis (tech)
Tutor: Torabi Haghighi, Ali
Rossi, Pekka
Patro, Ritesh
Reviewer: Torabi Haghighi, Ali


This thesis focuses on two lakes (Pyykosjarvi and Kuivasjarvi) located in a suburban area of Oulu, Finland. This analysis aimed to model water circulation between two lakes and provide possible solutions for reducing the residence time from one lake to another, eventually improving the water quality, as these lakes suffer water quality problems due to poor drainage. Two-dimensional hydrodynamic modeling was applied to resolve this problem by implementing channel modification to the actual terrain. Modified terrain is then analyzed for the hydrological response of the basin (as discharge) to short rainfall of 5, 10, 50 and 100 years return period to observe the catchment response to changes.

It is evident from the results acquired through hydrodynamic modeling that channel modification can reduce residence time between two lakes. Moreover, catchment response to rainfall scenarios showed exceptional results with almost no flooding with changes introduced compared to the actual conditions. These modifications can help improve water quality in both lakes as a conveyance in the system ameliorates.

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Copyright information: © Asfand Tehseen, 2022. Except otherwise noted, the reuse of this document is authorised under a Creative Commons Attribution 4.0 International (CC-BY 4.0) licence ( This means that reuse is allowed provided appropriate credit is given and any changes are indicated. For any use or reproduction of elements that are not owned by the author(s), permission may need to be directly from the respective right holders.