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Ring width and rainfall time series

Solar variability and width of tree ring

Solar variability and width of tree ring

... 3 ICRR, Univ. of Tokyo, Kashiwa, Japan Received: 9 September 2010 – Revised: 9 June 2011 – Accepted: 10 June 2011 – Published: 14 September 2011 Abstract. The relationship between solar activity and the global climate is ...

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A Time-series Forecasting Model for Windhoek Rainfall, Namibia

A Time-series Forecasting Model for Windhoek Rainfall, Namibia

... use time series forecasting techniques to model Windhoek rainfall based on secondary monthly data from 1891 to ...dispersion, time series plots, and autocorrelation functions were ...

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Hybrid of ARIMA-GARCH modeling in rainfall time series

Hybrid of ARIMA-GARCH modeling in rainfall time series

... of rainfall is usually very complex both in time and ...daily rainfall series of Ipoh and Alorsetar are affected by nonlinear characteristics of the variance often referred to as variance ...

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A modular technique for monthly rainfall time series prediction

A modular technique for monthly rainfall time series prediction

... Abstract—Rainfall time series forecasting is a crucial task in water resource planning and ...Conventional time series prediction models and intelligent models have been applied to this ...

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Statistical Modelling and Prediction of Rainfall Time Series Data

Statistical Modelling and Prediction of Rainfall Time Series Data

... of Rainfall Time Series Data ...and rainfall are highly non-linear and complicated phenomena, which require classical, modern and detailed models to obtain accurate ...fuzzy time ...

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Optimizing Dynamic Time Warping’s Window Width for Time Series Data Mining Applications

Optimizing Dynamic Time Warping’s Window Width for Time Series Data Mining Applications

... In line 1, we ensure that the data has an arbitrary structure in its ordering. In line 2, we enter a loop that replaces every second data object with a warped version of the data object that precedes it. Since these two ...

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Time Series Analysis of Nyala Rainfall Using ARIMA Method

Time Series Analysis of Nyala Rainfall Using ARIMA Method

... the rainfall, groundwater, and seasonal khors. The rainfall decreases from South to ...in rainfall is associated with increased ...levels. Rainfall varies from year to ...of rainfall ...

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Application of Seasonal Time Series Model to Rainfall and Temperature Forecast

Application of Seasonal Time Series Model to Rainfall and Temperature Forecast

... forecasted rainfall and temperature time series ...Nigerian rainfall and temperature ...in rainfall and temperature series forecast indicated that there will be rapid climate ...

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Time Series Analysis of Rainfall and Temperature Interactions in Coastal Catchments

Time Series Analysis of Rainfall and Temperature Interactions in Coastal Catchments

... The rainfall data was variable and appeared seasonal while the temperature data appeared ...in rainfall and temperature over 50-60 years but the results showed that rainfall and temperature varied ...

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Cascade based disaggregation of continuous rainfall time series: the influence of climate

Cascade based disaggregation of continuous rainfall time series: the influence of climate

... cascade-based rainfall model with geographical region and governing rainfall ...increasing rainfall variability, in turn associated with an increasing convective ...extreme rainfall, or more ...

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Stochastic Characteristics and Modelling of Monthly Rainfall Time Series of Ilorin, Nigeria

Stochastic Characteristics and Modelling of Monthly Rainfall Time Series of Ilorin, Nigeria

... monthly rainfall modelling and short-term ...trend-free series requiring de-trending, deseasonalisation followed by moving average smoothing, and fitting of ARIMA model might be too excessive as it distorts ...

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Forecasting Rainfall Distribution Based on Deseasonalising Fuzzy Time Series Model

Forecasting Rainfall Distribution Based on Deseasonalising Fuzzy Time Series Model

... of rainfall prediction based on deseasonalising data and fuzzy time series ...of rainfall distribution were collected from Drainage and Irrigation Department, Perlis Malaysia between January ...

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Trends and Shifts in Time Series of Rainfall and Runoff in the Gambia River Watershed

Trends and Shifts in Time Series of Rainfall and Runoff in the Gambia River Watershed

... of rainfall is seen as a major concern in environmental science because of the extreme vulnerability of the environment where the climate can be broadly defined by an annual rainfall ...of time ...

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Stochastic point process model for fine-scale rainfall time series

Stochastic point process model for fine-scale rainfall time series

... fine-scale rainfall time ...aggregated rainfall have been derived and used for model fitting and ...the rainfall are in very good agreement with the fitted theoretical values over a range of ...

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An Analytics Prediction Model of Monthly Rainfall Time Series: Case of Thailand

An Analytics Prediction Model of Monthly Rainfall Time Series: Case of Thailand

... A time series data especially rainfall and temperature needs analytics technologies to return a valuable ...of rainfall prediction model will be helpful for agriculturist and water ...daily ...

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Multivariate linear parametric models applied to daily rainfall time series

Multivariate linear parametric models applied to daily rainfall time series

... synthetic series, despite their capability to reproduce the main statistics of the observed ...simulated series is equal to the no-rain frequency, (ii) changing the negative values in zero-values; (iii) ...

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Forward modelling of tree-ring width and comparison with a global network of tree-ring chronologies

Forward modelling of tree-ring width and comparison with a global network of tree-ring chronologies

... et al., 1984; a threshold value of 0.85 is routinely, but ar- bitrarily, cited in dendrochronological literature). Rbar and EPS statistics were calculated over moving 30 yr windows with 15 yr overlap. A total of 93 % of ...

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Time-Series Analyses Applied to Sequences of Nothofagus Growth- Ring Measurements

Time-Series Analyses Applied to Sequences of Nothofagus Growth- Ring Measurements

... Results and discussion The producton of valid growth-ring index chronologies from cores obtained from Nothofagus species growing in a closed canopy environment was not without some difficulty. The periods of ...

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Iterative multiscale dynamic time warping (IMs-DTW): a tool for rainfall time series comparison

Iterative multiscale dynamic time warping (IMs-DTW): a tool for rainfall time series comparison

... the time series. Indeed two shifted time series are very similar even though their distance can be very ...two time series, it provides the temporal lags between ...way, ...

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A multiple threshold method for fitting the generalized Pareto distribution to rainfall time series

A multiple threshold method for fitting the generalized Pareto distribution to rainfall time series

... collected rainfall measurements, we show that its performances are superior anyway to standard single- threshold fitting on regularly discretized ...for rainfall records, which can be the common stan- dard ...

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