نتایج جستجو برای: mann kendall

تعداد نتایج: 22938  

Journal: :پژوهش های جغرافیای طبیعی 0
قاسم عزیزی دانشیار دانشکده جغرافیای دانشگاه تهران محمود روشنی مربی گروه جغرافیای دانشگاه آزاد اسلامی واحد رشت

abstract with due attention to importance of climate change and natural ecosystem sensibility of the study area, in this research have been studied the probable climatic departure from normal and the existence of trend in climatic time series is detected by statistical tests. the first on the basis of rank- method mann kendal, it is tried to identify of changes and then recognize their type and...

Journal: :International Journal of Enviornment and Climate Change 2022

This study was carried out to analyse the trend analysis of long-term annual and seasonal rainfall pattern in Telangana state, India. For this monthly data state from January 1982 December 2021 collected NASA power website (https://power.Iarc.nasa.gov). The linear regression line non-parametric tests, such as Mann-Kendall test, Modified-Mann Kendall test Innovative were used understand present ...

2011
Tahereh Soltani

Temperature, humidity and precipitation in an area, are parameters proved influential in the climate of that area, and one should recognize them so that he can determine the climate of that area. Climate changes are of primary importance in climatology, and in recent years, have been of great concern to researchers and even politicians and organizations, for they can play an important role in s...

2013
Shiulee Chakraborty R. P. Pandey

In this study, ETo was calculated using FAO-56 Penman Monteith method. Lag-1 autocorrelation coefficient was performed to detect the presence of serially correlation in data series. Mann-Kendall (MK) or Modified Mann Kendall (MMK) and Spearman’s rho test were applied to detect the trend in annual and monthly ETo at 8 districts over 49 years (1960–2008) in the Soenath river basin, Chhattisgarh (...

2013
Lucía Hermida José Luis Sánchez Laura López Claude Berthet Jean Dessens Eduardo García-Ortega Andrés Merino

Hail precipitation is characterized by enhanced spatial and temporal variability. Association Nationale d'Etude et de Lutte contre les Fléaux Atmosphériques (ANELFA) installed hailpad networks in the Atlantic and Midi-Pyrénées regions of France. Historical data of hail variables from 1990 to 2010 were used to characterize variability. A total of 443 stations with continuous records were chosen ...

2014
MARTINA ZELEŇÁKOVÁ

This paper deals with the research of monthly precipitation trends in climatic stations in Libya and Slovakia. The non-parametric Mann-Kendall statistic test was applied to detect trends and to assess the significance of the trends in the time series. The evaluation was done for the time period from November to October. Trend analysis of rainfall data series for 1970–2010 did not show any clear...

Journal: :Sains Malaysiana 2021

Novel coronavirus also known as COVID-19 was first discovered in Wuhan, China by end of 2019. Since then, the virus has claimed millions lives worldwide. In 29th April 2020, there were more than 5,000 outbreak cases Malaysia reported Ministry Health (MOHE). This study aims to evaluate trend analysis using Mann-Kendall test, and predict future Recurrent Forecasting-Singular Spectrum Analysis (RF...

Journal: :International Journal of Enviornment and Climate Change 2023

Bhadradri district of the central Telangana zone is monsoon dependent as like our country in past three decades many changes and shifts rainfall was experienced by farming community. Hence, data (1991-2020) analyzed using non parametric statistical tests i.e Mann-Kendall (MK) test Sen’s slope estimator for determining trend magnitude. The Results study revealed that Z value annual significantly...

2016
Yu Wang Qing-Ke Zhu Wei-Jun Zhao Huan Ma Rui Wang Ning Ai

Extensive vegetation restoration projects have been widely implemented on the Loess Plateau, China, since 1998. In addition, increasing attention has been paid to the influence of revegetation on soil water. However, the response of the soil water content (SWC) to vegetation construction and management has not been adequately studied. In this study, three types of typical artificial vegetation ...

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