نتایج جستجو برای: using mann â kendall graphical

تعداد نتایج: 3433541  

The study provides a statistical trend analysis of different air pollutants using Mann-Kendall and Sen’s slope estimator approach on past pollutants statistics from air quality index station of Varanasi, India. Further, using autoregressive integrated moving average model, future values of air pollutant levels are predicted. Carbon monoxide, nitrogen dioxide, sulphur dioxide, particu...

Journal: :Sustainability 2021

Climate change is having many effects in the agricultural sector, which are being studied worldwide. Undoubtedly, warmer winters and earlier springs produce changes frost regimes severity that will affect sustainability of production area. The Mediterranean region Iberian Peninsula (IP) among areas where greatest impact climate expected. Daily data from 68 weather stations IP belonging to Europ...

Journal: :PS: Political Science & Politics 1968

Journal: :River Research and Applications 2022

With ongoing climate change, analysis of trends in maximum annual daily river flow is interest. Flow magnitude and timing during the year were investigated this study. Observations from 11 unregulated rivers northern Sweden analysed, using extreme-value distributions with time-dependent parameters. The Mann–Kendall test was used to investigate possible trends. statistics revealed no significant...

Journal: :Acta geographica Slovenica 2021

In recent decades, an increase in the number of extreme flood events as well drought has been observed Slovenia. This rise need for a comprehensive analysis trends discharge data series. study, statistical seasonal and annual mean, maximum, low values were investigated using Mann Kendall test. The results show temporal spatial variability discharge. general, decreasing trend water quantities ri...

Journal: :IOP conference series 2023

Abstract In hydro-meteorological studies, precipitation is an important parameter that utilized in irrigation system design and management, as well agricultural planning. Under the effects of climate change, predicted to alter, which will have impact on sustainable development. Using rainfall data for Indravathi subbasin, Godavari basin, from 1998 2016, spatial variability temporal trend were e...

Journal: :Environment Conservation Journal 2022

Three timescale i.e. monthly, seasonal and annual rainfall data of Bundelkhand region, Central India, was analyzed for 40 years (1981-2020). The mean average the region ranges between 657.7 mm 1146.4 studied period with month August receiving highest amount rainfall. receives about 90 % its during South West Monsoon from June to September. Temporal trend different analysed using nonparametric M...

2005
W. Wang

Streamflow processes of 12 rivers in western Europe are investigated for trend and nonstationarity in the full 100-year period in the 20 century. Trend analyses with Mann–Kendall test show that there is no trend in annual mean discharges. Only three annual maximum flow series exhibit significant trends (Rhine and Moselle, upward; Rhone, downward). There are two minimum flow series exhibiting si...

Journal: :Dilemas Contemporáneos: Educación, Política y Valores 2021

En esta investigación se analizaron series de 40 años precipitaciones y temperatura las estaciones meteorológicas la sierra el oriente del Ecuador desde 1980 a 2019. Al considerar variabilidad en estaciones, fue posible establecer tendencias hacia aumento o disminución lo largo tiempo. Las fluctuaciones datos comparativos mostraron una comportamiento; por ello, mismas estuvieron sometidas prueb...

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