TY - JOUR TI - Metody określania związków temperatury wody rzecznej i temperatury powietrza na przykładzie rzeki Świder AU - Łaszewski, Maksym TI - Metody określania związków temperatury wody rzecznej i temperatury powietrza na przykładzie rzeki Świder AB - Methods of estimating stream water temperature and air temperature relationships – the Świder River case study Due to the high significance of water temperature to lotic ecosystems, this paper presents the methods of estimating relationships between water temperature and air temperature on the example of the Świder River. Statistical relationships were determined using logistic and linear regression models for daily, weekly and monthly average temperatures, as well as for daily maximum and average weekly maximum temperatures. The data were obtained as a result of field measurements, conducted in the hydrological years 2012 and 2013. A strong non-linear relationship was found between water and air temperature, as indicated by the obtained coefficients of determination and the R M S E of logistic models. Despite the non- -linear nature of this relationship, the appropriate selection of measurement data allows the efficient use of linear models. A comparison of fit measures of the models based on microclimatic data (Wólka Mlądzka) and meteorological station data (Warszawa-Okęcie) revealed no significant differences in their quality. The results may have practical application for the fisheries management and the protection of the ecosystem of the Świder River. VL - 2014 IS - Issue 136 PY - 2014 SN - 1644-3586 C1 - 2083-3113 SP - 45 EP - 60 DO - 10.4467/20833113PG.14.003.1641 UR - https://ejournals.eu/en/journal/prace-geograficzne/article/metody-okreslania-zwiazkow-temperatury-wody-rzecznej-i-temperatury-powietrza-na-przykladzie-rzeki-swider KW - water temperature KW - hydrometeorology KW - logistic model KW - linear model