Cruz González, Beatriz

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    Validación del algoritmo hidroestimador en la región de Puerto Rico
    (2006) Cruz González, Beatriz; Vásquez Espinosa, Ramón; College of Engineering; Hernández Rivera, William; Ramírez Beltrán, Nazario; Harmsen, Eric; Department of Industrial Engineering; Colom Ustáriz, José G.
    A heavy convective storm that occurred over the eastern part of Puerto Rico was selected to conduct a validation of the Hydro Estimator (HE). HE is a rainfall estimation algorithm which utilizes data from the GOES satellite. The selected tropical storm occurred from the 11th to the 13th of November, 2003 and caused a significant flash flood over the urban and agricultural areas. Puerto Rico is a small island located in the Caribbean basin and has a dense rain-gauge network that provides a good data set to conduct an accurate validation. The US Geological Survey monitors 125 rain-gauges located through PR and records rainfall every 15 minutes. Estimation of precipitation was generated by the same spatial and temporal distribution using the HE algorithm and the closest grid to a particular rain gauge was used to perform rainfall comparisons. NEXRAD data were also compared with rain gauges and the HE data. Continuous and discrete events were compared and the following scores were computed: the probability of detection, the false alarm rate, the bias of estimation, and correlation between observed and estimated rainfall. Also regression techniques were used in order to improve the results of the Hydro-Estimator.