6 The England and Wales Precipitation (EWP) dataset is a homogeneous time series of 7 daily accumulations from 1931 to 2014, composed from rain gauge observations spanning 8 the region. The daily precipitation statistics are shown to be well described by a Weibull 9 distribution, which is used to define extremes in terms of percentiles. Computed trends in 10 annual and seasonal precipitation ar...

Global precipitation data sets with high spatial and temporal resolution are needed for many applications, but they were unavailable before the recent creation of several such satellite products. Here, we evaluate four different satellite data sets of hourly or 3-hourly precipitation (namely CMORPH, PERSIANN, TRMM 3B42 and a microwave-only product referred to as MI) by comparing the spatial pat...

Accurate real-time reservoir inflow forecasting is an important requirement for operation, scheduling and planning conjunctive use in any basin. In this study, Time Delay Artificial Neural Network (TDANN) models, which are time lagged feed-formatted networks with delayed memory processing elements at the input layer, are applied to forecast the daily inflow into a planned Reservoir (Almopeos Ri...

Extreme precipitation events have caused serious impacts on natural ecosystem and human society attracted increasing attention in recent years. IPCC AR6 WG I report highlighted a lack of conclusive consensus the change trend extreme some basins variation (increase or decrease) between regions. Based seven indexes defined by ETCCDI, using daily data observed 18 national reference meteorological ...

Empirical frequency distribution of daily precipitation amounts can be fitted by a negative exponential distribution, because anywhere there are many small totals and few large ones. Therefore, the cumulative percentages days with precipitation, sorted in increasing order according to their amounts, against percentage rainfall that they contribute positive curves Y = aXebx, b constants. Based o...

 We tested the weather extrapolator MTCLIM for three sites in an arid region.  We provided a detailed validation of MTCLIM with statistical and graphical analysis.  MTCLIM acceptably extrapolates temperatures even from short weather data series.  MTCLIM performance for precipitation is acceptable only for monthly values.  MTCLIM creates acceptable weather records if high daily accuracy is ...