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We present evidence that the El Niño phenomenon intensifies the annual cycle of malaria cases for Plasmodium vivax and Plasmodium falciparum in endemic areas of Colombia as a consequence of concomitant anomalies in the normal annual cycle of temperature and precipitation. We used simultaneous analyses of both variables at both timescales, as well as(More)
This discussion paper is/has been under review for the journal Geoscientific Model Development (GMD). Please refer to the corresponding final paper in GMD if available. Abstract This paper presents a discussion of the predictive capacity of the first implementation of the semi-distributed hydrological modeling system JGrass-NewAge. This model fo-cuses on(More)
An analysis of hydrologic variability in Colombia shows different seasonal effects associated with El Niño/Southern Oscillation (ENSO) phenomenon. Spectral and cross-correlation analyses are developed between climatic indices of the tropical Pacific Ocean and the annual cycle of Colombia's hydrology: precipitation, river flows, soil moisture, and the(More)
presents the design for the integrated hydrologic observations database that is proposed for the CUAHSI Hydrologic Information System (HIS). An independent review of this design was undertaken to evaluate whether the data model for hydrologic observations meets the needs of the CUAHSI community. Specifically the review sought to address whether the model is(More)
Keywords: Asynchronous integrator Tree structure Hillslope-link river basin model Distributed memory Asynchronous communication a b s t r a c t This paper documents our development and evaluation of a numerical solver for systems of sparsely linked ordinary differential equations in which the connectivity between equations is determined by a directed tree.(More)
ii Para Mark y Emma-mis grandes amores iii ACKOWLEDGMETS I would like to thank Dr. Larry Weber for inspiring me to go back to school and for all his guidance during these two years. I also want to thank Dr. Ricardo Mantilla for all his time and for sharing with me his passion for hydrological modeling. I specially want to thank Luciana Cunha, for providing(More)
This document presents a sketch of the engineering and legal considerations necessary to implement a distributed storage flood mitigation system in Iowa. This document first presents the results of a simulation done to assess the advantages of active storage reservoirs over passive reservoirs for flood mitigation. Next, this paper considers how forecasts(More)