Hiatus in global warming - example of water temperature of the Danube River at Bogojevo gauge (Serbia)

Ducic, Vladan; Milenković, Milan; Milijasevic, Dragana; Vujačić, Duško; Bjeljac, Željko; Lovic, Suzana; Gajić, Mirjana; Anđelković, Goran; Djordjević, Aleksandar

doi:10.2298/tsci150430133d

Cited by 7 publications

(4 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of the NAO index and the water temperature are mainly in compliance with the results of Ducić et al (2015). They researched the connection between the NAO index and the water temperature of the Danube at Bogojevo gauge in the period 1961-2013.…”

Section: Resultssupporting

confidence: 71%

The North Atlantic Oscillation (NAO) and the water temperature of the Sava River in Serbia

Milenković¹,

Savić²,

Walker³

et al. 2017

J GEOGR INST CVIJIC

Self Cite

View full text Add to dashboard Cite

The data on the water temperature of the Sava in Serbia (hydrological stations Šabac and Belgrade, period 1961-2015) were used for the research, as well as the data on the surface air temperature. The temperature trends were determined and the significance (at p≤0.05 and p≤0.01) was established on the basis of the t-test. The Pearson correlation coefficient (R) was used for the calculation of the correlation. Increasing trends of the water temperature of the Sava were recorded in all cases at both stations. However, in the case of the HS Šabac, the trends for 6 months (February-April and September-November) were not statistically significant. In the case of the HS Belgrade, all the calculations (except for April) showed statistically significant increasing trends, which can be explained by anthropogenic influence. High level of correlation between the surface air temperature and the water temperature was also determined. In this research, the lowest values of R were recorded for October (0.561 for Belgrade), and on the seasonal level, for autumn (0.625 for Šabac). The research on the correlation between the water temperature of the Sava River and the NAO index showed the highest values of R for January (0.512 for HS Šabac and 0.528 for HS Belgrade). On the seasonal level, the highest values were recorded for winter (0.422 for HS Šabac and 0.432 for HS Belgrade).

show abstract

Section: Resultssupporting

confidence: 71%

The North Atlantic Oscillation (NAO) and the water temperature of the Sava River in Serbia

Milenković¹,

Savić²,

Walker³

et al. 2017

J GEOGR INST CVIJIC

Self Cite

View full text Add to dashboard Cite

show abstract

“…A similar increase of the minimum and mean annual Tw of the Danube and its main tributaries in Croatia since 1988 was reported by Bonacci et al (2008). A statistically significant increase (0.039 °C per year) in the mean annual Tw of the Danube at Bogojevo (Serbia) and increases in all the average monthly values between 1961 and 2013 were reported by Ducić et al (2015). A comprehensive study on the trends in alterations of water temperatures across Elbe and Danube river basins warns that there is a significant risk for fundamental changes in river ecosystems, which may lead to significant distortions in community structure and composition Markovic et al (2013).…”

Section: Discussionsupporting

confidence: 75%

Status of the burbot (Lota lota L.) in the Lower Danube (Bulgaria) – a species threatened by climate change

Pandakov

Teofilova

KODZHABASHEV

2020

View full text Add to dashboard Cite

Citation: Pandakov PG, Teofilova TM, Kodzhabashev ND (2020) Status of the burbot (Lota lota L.) in the Lower Danube (Bulgaria) -a species threatened by climate change. ZooKeys 910: 143-161. https://doi.org/10.3897/ zookeys.910.47866 AbstractThe study provides data on the catch composition, length-weight relationship, age structure, gender structure, growth, maturation, fecundity, distribution and conservation status of the burbot Lota lota (Linnaeus, 1758) in Bulgaria. During six consecutive winters (2008-2014) a total of 395 burbot specimens were caught. The total length and the weight of the specimens ranged from 16 to 51 cm and 29.8 to 1057 g, respectively. Seven age classes were represented (3-to 9-years-old), with 3-, 4-, and 5-years-old most abundant. The maximal life expectancy was estimated as 12 years. Male-female ratio was 1:1. Maturity happens at the age of four at the earliest, valid for both sexes. One-quarter of the fish, older than 5 years were determined as non-reproducing in the particular year. The absolute fecundity varied between 47 462 and 810 236 eggs for females ranging from 5 to 7 years old and from 25.7 to 41.5 cm in length. A dramatic decrease of burbot population was observed in the last two decades. Warming water temperatures of the Danube, together with fragmentation in its tributaries are considered as the major threats affecting the species. Therefore, the burbot in Bulgaria is classified as Endangered.

show abstract

“…and the respective basin area A in square kilometres (km 2 ). The literature on the Danube River and its catchment water temperature is extensive [7,[44][45][46][47][48][49][50][51][52]. Analysis of Danube water temperature in Austria by Webb and Nobilis concluded that there were significant increases in annual mean values, closely following changes in air temperature [44].…”

Section: Study Areamentioning

confidence: 99%

Trends in Air and Water Temperatures at the Confluence of the Sava and Danube Rivers in Belgrade, Serbia

Bonacci,

Žaknić-Ćatović,

Roje-Bonacci

et al. 2024

Preprint

View full text Add to dashboard Cite

This study investigates the mean annual water temperature trends at the confluence of the Sava and Danube Rivers, along with air temperature trends at the Belgrade meteorological station, spanning from 1956 to 2020. Results reveal a consistent increase in temperature across all three measuring stations, with the Danube experiencing a rise of 0.34°C/10 years, the Sava at 0.44°C/10 years, and Belgrade's air temperature increasing by 0.39°C/10 years. Employing the RAPS method, sharp rises in water temperature were pinpointed in 1989 for the Sava and 1990 for the Danube, while Belgrade's air temperature surge began in 1998. The highest intensity of air temperature increase within the recent period (1998-2020) was observed at the Belgrade observatory, reaching 0.76°C/10 years. Notably, the Sava exhibited a faster increase in water temperature over the last thirty years compared to the Danube. August marked the peak average water temperature for both rivers, while July recorded the highest average air temperature in Belgrade. Despite differing flow rates, both rivers exhibit similar hydrological regimes, with maximum flows occurring in April and minimum flows in August for the Sava, and October for the Danube. Seasonal temperature increases were most pronounced in summer, notably in August, with the smallest rises occurring during cold periods. Additionally, an inverse proportional relationship between mean annual water temperatures and discharges was observed at both river stations.

show abstract

Hiatus in global warming - example of water temperature of the Danube River at Bogojevo gauge (Serbia)

Cited by 7 publications

References 46 publications

The North Atlantic Oscillation (NAO) and the water temperature of the Sava River in Serbia

The North Atlantic Oscillation (NAO) and the water temperature of the Sava River in Serbia

Status of the burbot (Lota lota L.) in the Lower Danube (Bulgaria) – a species threatened by climate change

Trends in Air and Water Temperatures at the Confluence of the Sava and Danube Rivers in Belgrade, Serbia

Contact Info

Product

Resources

About