Statistical analysis of long term spatial and temporal trends of precipitation during 1901–2002 at Madhya Pradesh, India

Duhan, DS; Pandey, Ashish

doi:10.1016/j.atmosres.2012.10.010

Cited by 289 publications

(101 citation statements)

References 60 publications

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“…Mann-Kendall test [20] is a non-parametric test for randomness against time for correlation and has, in the last half decade, become useful in water resources research for examining significance in trends within river basins [6,[23][24][25]. The Non-Parametric Mann-Kendall (MK) test [20] and rank correlation method [26] were used to study the trend analysis because of their powerful nature over other methods in hydrological analysis [27].…”

Section: Methodsmentioning

confidence: 99%

Temporal Variability and Trends of Rainfall and Streamflow in Tana River Basin, Kenya

2017

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This study investigated temporal variabilities and trends of rainfall and discharges in Tana River Basin in Kenya using Mann-Kendall non-parametric test. Monthly rainfall data from ten stations spanning from 1967 to 2016 and daily streamflow data time series of observations from 1941 to 2016 (75 years) were analyzed with the aim of capturing and detecting multiannual and seasonal variabilities and monotonic trends. The results for the datasets suggested that the streamflow is largely dependent on increasing rainfall at the highlands. The rainfall trends seemed to have been influenced by altitudinal factors. The coefficient of variation of the ten rainfall stations ranged from 12% to 17% but 70% of rainfall stations showed negative monotonic trends and 30% show significant trends. The streamflow showed statistically significant upward monotonic trend and seasonal variability indicating a substantial change in the streamflow regime. Although the increasing trend of the streamflow during this period may not pose future risks and vulnerability of energy and irrigated agricultural production systems across the basin, variability observed indicates the need for enhanced alternative water management strategies during the low flow seasons. The trends and time series data indicate the potential evidence of climate and land use change and their impacts on the availability of water and sustainability of ecology and energy and agricultural production systems across the basin. Variability and trends of rainfall and streamflow are useful for planning studies, hydrological modeling and climate change impacts assessment within Tana River Basin.

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Section: Methodsmentioning

confidence: 99%

Temporal Variability and Trends of Rainfall and Streamflow in Tana River Basin, Kenya

2017

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“…Kumar and Jain [17] also found downward trend in the annual rainfall as well as rainy days in 15 out of 22 basins in India. Studies over states of Chhattisgarh [18] and Madhya Pradesh also reported downward rainfall trends [19].…”

Section: Introductionmentioning

confidence: 99%

Long Term Spatiotemporal Variability in Rainfall Trends over the State of Jharkhand, India

Sharma

Singh

2017

Climate

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Abstract:The current study was conducted to examine the impact of climate change on rainfall in Jharkhand state of India. It deals with the analysis of the historical spatiotemporal variability of rainfall on the annual, seasonal and monthly scale in 18 districts of the state Jharkhand over a period of 102 years . Mann-Kendall trend test and Sen's slope method were applied to detect trends and the magnitude of change over the time period of 102 years . Mann Whitney Pettit's method and Cumulative deviations test were applied for detection of shift point in the series. The results obtained year 1951 to be the most probable shift point in annual rainfall. The trend analysis along with the percent change for the data series before and after the shift point was also done. A significant downward rainfall trend was found in annual, monsoon and winter rainfall over the period of 102 years. The maximum decrease was found for the Godda (19.77%) and minimum at Purbi Singhbum station (1.95%). Trend analysis before shift point, i.e., during 1901-1951 showed an upward trend in annual rainfall and after shift point a downward trend. The trend analysis for entire Jharkhand demonstrated a significant downward trend in annual and monsoon rainfall with a decrease of 14.11% and 15.65% respectively. A downward trend in seasonal rainfall will have a more pronounced effect on agricultural activities in the area as it may affect the growth phase of the kharif crops (May-October) in the region.

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“…The Theil-Sen estimator is a commonly used trend slope calculation method, particularly in a hydrological factor trend analysis. In such an analysis, it is used together with other trend analysis methods to perform quantitative analyses on trend significance [11][12][13][14][15]. Thus, in this study, the Theil-Sen estimator is used to calculate the trend slopes to obtain the extent of trend changes.…”

Section: Introductionmentioning

confidence: 99%

“…The intersection where two dissimilar trends meet is called a change point. To determine whether change points exist in the long-term data in this study, the Mann-Whitney-Pettit test and the cumulative deviation test, two tests commonly used in hydrology analyses, are used [14,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Spatial and Temporal Streamflow Trends in Northern Taiwan

Yeh

Wang

Yeh

et al. 2015

Water

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Abstract:Streamflow is an important factor in the study of water resource management, floods, and droughts. Dramatic climate change has created extreme rainfall distributions, making the study of streamflow trends and variability even more crucial. In this study, the long-term streamflow data and trends recorded at gauging stations in Northern Taiwan are analyzed using the Mann-Kendall test. The data used for trend analysis are the average annual streamflow, the average seasonal streamflow, and the high and low flows. The slope trend is calculated using the Theil-Sen estimator. Finally, change point analysis is conducted using the Mann-Whitney-Pettit test and the cumulative deviation test to gain further information about the change points and to understand the changes in streamflow before and after the change points. The average annual streamflow of the 12 gauging stations in the study area is analyzed using the Mann-Kendall test. The results show that of the 12 gauging stations, only the Ximen Bridge Station in the Lanyang River basin show a significant downward streamflow trend. Results of the monthly and seasonal average streamflow analysis show that in the spring, 72.2% of the gauging stations showed upward streamflow trends, most of which were located in the Tamsui River and the Touqian River basins. The high and low flow data analysis shows that the Ximen Bridge Station was the only gauging station to feature a significant downward streamflow trend for both high and low flows. This distribution pattern provides valuable information for regional hydrological studies and water management. OPEN ACCESSWater 2015, 7 635

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Statistical analysis of long term spatial and temporal trends of precipitation during 1901–2002 at Madhya Pradesh, India

Cited by 289 publications

References 60 publications

Temporal Variability and Trends of Rainfall and Streamflow in Tana River Basin, Kenya

Temporal Variability and Trends of Rainfall and Streamflow in Tana River Basin, Kenya

Long Term Spatiotemporal Variability in Rainfall Trends over the State of Jharkhand, India

Spatial and Temporal Streamflow Trends in Northern Taiwan

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