Reservoir-Induced Changes in Dynamics and Synchrony of River Water Temperatures Revealed by RQA and CRQA / Mariola Kędra // W: Recurrence Plots and Their Quantifications: Expanding Horizons : proceedings ... więcej

Reservoir-Induced Changes in Dynamics and Synchrony of River Water Temperatures Revealed by RQA and CRQA / Mariola Kędra // W: Recurrence Plots and Their Quantifications: Expanding Horizons : proceedings of the 6th International Symposium on Recurrence Plots, Grenoble, France, 17-19 June 2015 [Dokument elektroniczny] / eds.: Charles L. Webber, Jr., Cornel Ioana, Norbert Marwan. – Switzerland : Springer International Publishing, 2016. – (Springer Proceedings in Physics, ISSN 0930-8989 ; 180). – S. 289-300 : il. – Tryb dostępu: http://link.springer.com/chapter/10.1007/978-3-319-29922-8_15. – Bibliogr. 37 poz., Abstr. – doi: 10.1007/978-3-319-29922-8_15. – ISBN 978-3-319-29922-8 (E-book). – ISBN 978-3-319-29921-1 (Hardcover)

River water temperature is a key environmental determinant for aquatic biota. A range of and dynamic changes in temperature values through different temporal scales from diurnal to annual ones determine ... więcej

River water temperature is a key environmental determinant for aquatic biota. A range of and dynamic changes in temperature values through different temporal scales from diurnal to annual ones determine conditions of life and survival for fish and other aquatic organisms. As a result of heat exchange with the environment (mainly at the air-water boundary), river water temperature largely follows changes in local weather conditions and is related to the dynamics of local air temperature. A retention reservoir operating in a course of river can alter the dynamics of water temperature and the specific air-water relationship for a given site below that reservoir. But to what extent? Water and air temperatures measured some distance below a group of two reservoirs functioning on a mountain river were studied in two separate time periods—occurring before and after the reservoirs’ construction. Recurrence and cross-recurrence quantification analyses revealed that the reservoirs in question have significantly altered the temperature dynamics of water flowing out of them compared to the pre-dam period, and caused the weakening of synchronization between the air and water temperatures studied.