prikaz prve stranice dokumenta Long term variations of river temperature and the influence of air temperature and river discharge: case study of Kupa River watershed in Croatia
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Scientific paper - Original scientific paper
Long term variations of river temperature and the influence of air temperature and river discharge: case study of Kupa River watershed in Croatia
Journal of Hydrology and Hydromechanics, 67 (2019), 4; 305-313. https://doi.org/10.2478/johh-2019-0019
Zhu, Senlin; Bonacci, Ognjen; Oskoruš, Dijana; Hadzima-Nyarko, Marijana; Wu, Shiqian

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Zhu, S., Bonacci, O., Oskoruš, D., Hadzima Nyarko, M. & Wu, S. (2019). Long term variations of river temperature and the influence of air temperature and river discharge: case study of Kupa River watershed in Croatia. Journal of Hydrology and Hydromechanics, 67. (4), 305-313. doi: 10.2478/johh-2019-0019

Zhu, Senlin, et al. "Long term variations of river temperature and the influence of air temperature and river discharge: case study of Kupa River watershed in Croatia." Journal of Hydrology and Hydromechanics, vol. 67, no. 4, 2019, pp. 305-313. https://doi.org/10.2478/johh-2019-0019

Zhu, Senlin, Ognjen Bonacci, Dijana Oskoruš, Marijana Hadzima Nyarko and Shiqian Wu. "Long term variations of river temperature and the influence of air temperature and river discharge: case study of Kupa River watershed in Croatia." Journal of Hydrology and Hydromechanics 67, no. 4 (2019): 305-313. https://doi.org/10.2478/johh-2019-0019

Zhu, S., et al. (2019) 'Long term variations of river temperature and the influence of air temperature and river discharge: case study of Kupa River watershed in Croatia', Journal of Hydrology and Hydromechanics, 67(4), pp. 305-313. doi: 10.2478/johh-2019-0019

Zhu S, Bonacci O, Oskoruš D, Hadzima Nyarko M, Wu S. Long term variations of river temperature and the influence of air temperature and river discharge: case study of Kupa River watershed in Croatia. Journal of Hydrology and Hydromechanics [Internet]. 2019 [cited 2025 January 15];67(4):305-313. doi: 10.2478/johh-2019-0019

S. Zhu, O. Bonacci, D. Oskoruš, M. Hadzima Nyarko and S. Wu, "Long term variations of river temperature and the influence of air temperature and river discharge: case study of Kupa River watershed in Croatia", Journal of Hydrology and Hydromechanics, vol. 67, no. 4, pp. 305-313, 2019. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:133:328004. [Accessed: 15 January 2025]

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Metadata
Title (english)Long term variations of river temperature and the influence of air temperature and river discharge: case study of Kupa River watershed in Croatia
AuthorSenlin Zhu
AuthorOgnjen Bonacci
AuthorDijana Oskoruš
AuthorMarijana Hadzima-Nyarko
AuthorShiqian Wu
Author's institutionJosip Juraj Strossmayer University of Osijek
Faculty of Civil Engineering and Architecture Osijek
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Civil Engineering
Abstract (english)
The bio-chemical and physical characteristics of a river are directly affected by water temperature, which therefore affects the overall health of aquatic ecosystems. In this study, long term variations of river water temperatures (RWT) in Kupa River watershed, Croatia were investigated. It is shown that the RWT in the studied river stations increased about 0.0232–0.0796ºC per year, which are comparable with long term observations reported for rivers in other regions, indicating an apparent warming trend. RWT rises during the past 20 years have not been constant for different periods of the year, and the contrasts between stations regarding RWT increases vary seasonally. Additionally, multilayer perceptron neural network models (MLPNN) and adaptive neuro-fuzzy inference systems (ANFIS) models were implemented to simulate daily RWT, using air temperature (Ta), flow discharge (Q) and the day of year (DOY) as predictors. Results showed that compared to the individual variable alone with Ta as input, combining Ta and Q in the MLPNN and ANFIS models explained temporal variations of daily RWT more accurately. The best accuracy was achieved when the three inputs (Ta, Q and the DOY) were included as predictors. Modeling results indicate that the developed models can well reproduce the seasonal dynamics of RWT in each river, and the models may be used for future projections of RWT by coupling with regional climate models.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleJournal of Hydrology and Hydromechanics
Numberingvol. 67, no. 4, pp. 305-313
BPC100 EUR
p-ISSN0042-790X
e-ISSN1338-4333
DOIhttps://doi.org/10.2478/johh-2019-0019
URN:NBNurn:nbn:hr:133:328004
Publication2019
Document URLhttps://sciendo.com/article/10.2478/johh-2019-0019
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-12-03 09:35:47