نتایج جستجو برای: using mann â kendall graphical
تعداد نتایج: 3433541 فیلتر نتایج به سال:
Creating innovative ways for the identification of trends is a very vital part atmospheric studies. Different climatic locations present their unique variations, calling dynamism trend analysis. In addition to widely adopted Mann–Kendall (MK) test, new Şen’s analysis (ITA) method has been applied analyze refractivity related (atmosphere pressure—AP, vapour pressure—VP, ambient temperature—T) an...
A hybrid algorithm of an enhanced version of Mann-Kendall trending and data analysis is proposed to solve the limitations of current technology in detecting and diagnosing cooling system refrigerant faults in general and refrigerant leakage specifically. A data abstraction mechanism is applied over feed of temperatures and power measurement to calculate and store only the significant informatio...
The Pre-Whitening (PW), the Trend-Free Pre-Whitening (TFPW) and the Modified Trend-Free PreWhitening (MTFPW) were developed to remove the influence of serial correlations on the MannKendall trend test. The main purpose of this study was to compare the performance of these algorithms for evaluating trends in auto-correlated series. The PW, TFPW and MTFPW were also applied to the monthly values o...
Any changes in the climate system affect on the access and management of natural resources such as water and soil. Temperature and precipitation are the key elements of climate for studying their trend can be important for atmospheric scientists, environmental managers and planners in the field of hydrology, agriculture, environment and so on. In this study, the trend of climate fluctuations wa...
Given the importance of climate change issue, consideration of the climate and hydrological data trend has become very important. This study aimed to evaluate the effectiveness of different methods to remove the effect of autocorrelation in assessing the trend of parameters such as temperature, precipitation and discharge of the Eastern Gorganrood Basin, Golestan Province. For this purpose, in ...
Rain-fed food crop production is very sensitive to climate variability. The majority of Ethiopian population reliant on rain-fed seasonal agriculture, which the backbone country’s economy. objective study was investigate impact rainfall and temperature changes maize sorghum yields. data were analyzed using Mann–Kendall trend test, Sen’s slope, correlation, regression models. study’s findings de...
The present study has analysed the Spatial-temporal distribution of groundwater level (GWL) in Ghazipur district been calculated using statistical and graphical methods for period 1998, 2008 2018. In study, GWL trend was non-parametric Modified Mann-Kendall (MMK) test 39 locations UP, India. analysis tested at a 5 % significance level. mean, minimum maximum during pre-monsoon season(PRM) ranged...
O presente trabalho objetivou compreender como a variabilidade temporal das médias anuais de temperatura do ar (Mínima, Média Compensada e Máxima) se comportaram ao longo 30 anos para o município Belo Horizonte. Foram utilizadas técnicas estatísticas medidas tendência central, dispersão, classificação intensidade temperaturas cada ano (Ano Frio, Normal Quente) alteração pelo teste Mann-Kendall....
In arid and semi-arid ecosystems shortage of surface water has led to a greater use of groundwater resources. Water table in groundwater due to climate and human intervention is always fluctuating. Assessing change groundwater resource in planning and sustainable management of water resources in each region has of great importance. In this study were investigated changes of water table in the p...
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