TEMPORAL AND SPATIAL VARIABILITY IN AIR TEMPERATURE AND PRECIPITATION IN THE BASIN OF AZOV SEA OVER THE PERIOD 1966�2015

Author(s):  
Olesya Nazarenko
Climate ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 16 ◽  
Author(s):  
Julia Bilbao ◽  
Roberto Román ◽  
Argimiro De Miguel

Maximum (Tmax), minimum (Tmin), mean (Tmean) air temperature and diurnal temperature range (DTR) trends on a seasonal and annual time scale are evaluated from data recorded at nine Spanish weather stations during the period 1950–2011. Temporal and spatial variability in temperatures and in the diurnal temperature range (DTR) are presented. The non-parametric Theil-Sen approach and the Mann-Kendall test are used to evaluate anomaly temperature trends and their statistical significance, respectively. An air temperature reduction in Spain between 1950 and 1980 emerges and significant warming is observed between 1980 and 2011. On a seasonal scale, the weakest trends (mostly insignificant at the 5% confidence level) are noted during autumn, while the strongest warming rates were found during summer and spring. The rate of change between 1950 and 2011 in Tmax, Tmin and Tmean was 1.6 °C, 1.1 °C and 1.3 °C, respectively. DTR trends showed a decrease on the Mediterranean coast and a small change in northern, Atlantic and rural areas. The spatial distribution of annual and seasonal trends was plotted as isoline maps and strong trend gradients from the south to the north of the country are observed. DTR values were negatively correlated with relative humidity and precipitation and positively correlated with sunshine hours.


2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Agu Eensaar

The change in the statistical and temporal parameters of air temperatures in the Estonian cities, that is, Tallinn and Tartu, was analyzed for two centuries. The results showed that the change of air temperature in Estonia exceeded 0.5°C per ten years for the time 1979–2012. For the longer period, that is, 1880–2012, the average annual rise in the air temperature was within the range of 0.1°C per ten years. The analysis of frequency distributions of the average annual air temperatures and Welch’s t-test demonstrated the considerable rise in air temperature (the significance level of 0.05) in Estonia, which took place in 1901–2014 and was witnessed only in the months from November to April. However, no significant rise in air temperature was detected in Estonia from May to October.


2020 ◽  
Author(s):  
Hao Luo ◽  
Irene Crisologo ◽  
Marcelo Garcia ◽  
Scott Collis ◽  
Daniel Horton ◽  
...  

2013 ◽  
Vol 120 (1-2) ◽  
pp. 375-387 ◽  
Author(s):  
Gregory J. McCabe ◽  
David M. Wolock

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