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• W2149131189 abstract "Spatial prediction of hourly rainfall via radar calibration is addressed. The change of support problem (COSP), arising when the spatial supports of different data sources do not coincide, is faced in a non-Gaussian setting; in fact, hourly rainfall in Emilia-Romagna region, in Italy, is characterized by abundance of zero values and right-skeweness of the distribution of positive amounts. Rain gauge direct measurements on sparsely distributed locations and hourly cumulated radar grids are provided by the ARPA-SIMC Emilia-Romagna. We propose a three-stage Bayesian hierarchical model for radar calibration, exploiting rain gauges as reference measure. Rain probability and amounts are modeled via linear relationships with radar in the log scale; spatial correlated Gaussian effects capture the residual information. We employ a probit link for rainfall probability and Gamma distribution for rainfall positive amounts; the two steps are joined via a two-part semicontinuous model. Three model specifications differently addressing COSP are presented; in particular, a stochastic weighting of all radar pixels, driven by a latent Gaussian process defined on the grid, is employed. Estimation is performed via MCMC procedures implemented in C, linked to R software. Communication and evaluation of probabilistic, point and interval predictions is investigated. A non-randomized PIT histogram is proposed for correctly assessing calibration and coverage of two-part semicontinuous models. Predictions obtained with the different model specifications are evaluated via graphical tools (Reliability Plot, Sharpness Histogram, PIT Histogram, Brier Score Plot and Quantile Decomposition Plot), proper scoring rules (Brier Score, Continuous Rank Probability Score) and consistent scoring functions (Root Mean Square Error and Mean Absolute Error addressing the predictive mean and median, respectively). Calibration is reached and the inclusion of neighbouring information slightly improves predictions. All specifications outperform a benchmark model with incorrelated effects, confirming the relevance of spatial correlation for modeling rainfall probability and accumulation." @default.
• W2149131189 created "2016-06-24" @default.
• W2149131189 creator A5019259097 @default.
• W2149131189 date "2015-02-02" @default.
• W2149131189 modified "2023-10-16" @default.
• W2149131189 title "RAINFALL SPATIAL PREDICTIONS: A TWO-PART MODEL AND ITS ASSESSMENT" @default.
• W2149131189 cites W10325172 @default.
• W2149131189 cites W1481967835 @default.
• W2149131189 cites W1494033766 @default.
• W2149131189 cites W1520053542 @default.
• W2149131189 cites W1522863251 @default.
• W2149131189 cites W1561215347 @default.
• W2149131189 cites W1582539699 @default.
• W2149131189 cites W1584127072 @default.
• W2149131189 cites W1596195796 @default.
• W2149131189 cites W1610588316 @default.
• W2149131189 cites W1611522588 @default.
• W2149131189 cites W1630516457 @default.
• W2149131189 cites W1708211919 @default.
• W2149131189 cites W1835358279 @default.
• W2149131189 cites W1971905067 @default.
• W2149131189 cites W1973475129 @default.
• W2149131189 cites W1976255336 @default.
• W2149131189 cites W1976991085 @default.
• W2149131189 cites W1977970167 @default.
• W2149131189 cites W1979022210 @default.
• W2149131189 cites W1979895592 @default.
• W2149131189 cites W1983125795 @default.
• W2149131189 cites W1984343005 @default.
• W2149131189 cites W1984350169 @default.
• W2149131189 cites W1988885267 @default.
• W2149131189 cites W1991007019 @default.
• W2149131189 cites W1991629274 @default.
• W2149131189 cites W1998762385 @default.
• W2149131189 cites W1999617766 @default.
• W2149131189 cites W2002998707 @default.
• W2149131189 cites W2004120225 @default.
• W2149131189 cites W2010560793 @default.
• W2149131189 cites W2013765062 @default.
• W2149131189 cites W2014298914 @default.
• W2149131189 cites W2014399341 @default.
• W2149131189 cites W2014707926 @default.
• W2149131189 cites W2016183155 @default.
• W2149131189 cites W2019972036 @default.
• W2149131189 cites W2022548072 @default.
• W2149131189 cites W2022860576 @default.
• W2149131189 cites W2024511820 @default.
• W2149131189 cites W2025720061 @default.
• W2149131189 cites W2027544139 @default.
• W2149131189 cites W2027792629 @default.
• W2149131189 cites W2029388851 @default.
• W2149131189 cites W2030597423 @default.
• W2149131189 cites W2031528200 @default.
• W2149131189 cites W2037060123 @default.
• W2149131189 cites W2040303896 @default.
• W2149131189 cites W2046306852 @default.
• W2149131189 cites W2049588492 @default.
• W2149131189 cites W2051817458 @default.
• W2149131189 cites W2053589029 @default.
• W2149131189 cites W2055208896 @default.
• W2149131189 cites W2057765075 @default.
• W2149131189 cites W2059883964 @default.
• W2149131189 cites W2060442802 @default.
• W2149131189 cites W2060517955 @default.
• W2149131189 cites W2061930335 @default.
• W2149131189 cites W2065089656 @default.
• W2149131189 cites W2065526915 @default.
• W2149131189 cites W2068209972 @default.
• W2149131189 cites W2069821006 @default.
• W2149131189 cites W2073241381 @default.
• W2149131189 cites W2074244669 @default.
• W2149131189 cites W2074984119 @default.
• W2149131189 cites W2075965721 @default.
• W2149131189 cites W2080352512 @default.
• W2149131189 cites W2082864892 @default.
• W2149131189 cites W2085210969 @default.
• W2149131189 cites W2089111780 @default.
• W2149131189 cites W2097489895 @default.
• W2149131189 cites W2097804995 @default.
• W2149131189 cites W2099489291 @default.
• W2149131189 cites W2109041929 @default.
• W2149131189 cites W2114220616 @default.
• W2149131189 cites W2118711140 @default.
• W2149131189 cites W2120909023 @default.
• W2149131189 cites W2130715829 @default.
• W2149131189 cites W2130774920 @default.
• W2149131189 cites W2137639805 @default.
• W2149131189 cites W2143022286 @default.
• W2149131189 cites W2144367722 @default.
• W2149131189 cites W2149744566 @default.
• W2149131189 cites W2157571709 @default.
• W2149131189 cites W2160858172 @default.
• W2149131189 cites W2163628937 @default.
• W2149131189 cites W2165410407 @default.
• W2149131189 cites W2166120424 @default.
• W2149131189 cites W2166452583 @default.
• W2149131189 cites W2168464387 @default.
• W2149131189 cites W2171775817 @default.
• W2149131189 cites W2173031829 @default.
• W2149131189 cites W2174362514 @default.

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