TrackingStorm: Visualization Tool for a Storm Detector Network (SDN) in the LF Spectrum

Abstract During the last year the Group of Atmospheric Electricity Phenomena (FEA/UFPR) developed a short range lightning location network based on a sensor device called Storm Detector Network (SDN), along with a set of algorithms that enables to track storms, determining the Wide Area Probability (WAP) of lightning occurrence, risk level of lightning and Density Extension of the Flashes (DEF), using the geo-located lightning information as input data. These algorithms compose a Dashboard called Tracking Storm Interface (TSI), which is the visualization tool for an experimental short range Storm Detector network prototype in use on the region of Curitiba-Paraná, Brazil. The algorithms make use of Geopandas and clustering algorithms to locate storms, estimate centroids, determine dynamic storm displacement and compute parameters of thunderstorms like velocity, head edge of electrified cloud, Mean Stroke Rate, and tracking information, which are important parameters to improve the alert system which is subject of this research. To validate these algorithms we made use of a simple storm simulation, which enabled to test the system with huge amounts of data. We found that, for long duration storms, the tracking results, velocity and directions of the storms are coherent with the values of simulation and can be used to improve an alert system for the Storm Detector network. WAP can reach at least 75% of prediction efficiency when used 6 past WAP data, but can reach 98.86% efficiency when more data is available. We use storm dynamics to make improved alert predictions, reaching an efficiency of ~87%.

Encuesta nutricional pediátrica / Pediatric nutrition survey

Luego de los años setenta, y a partir de la experiencia norteamericana, en varios países, se comienza a medir el estado alimenticio de la población y los cambios a través del tiempo. La encuesta nacional, con el fin de ofrecer información periódica y actualizada, permite desarrollar, monitorear y establecer políticas en relación a la salud y nutrición de la población infantil. Entre los métodos de encuesta nutricional más utilizados están el recordatorio de 24 horas, el registro diario de alimentos, peso directo de los alimentos y frecuencia semi-cuantitativa.

After the seventies, and from the American experience in several countries, begin to measure the nutritional status of the population and changes over time. The national survey, in order to provide regular and updated information, can develop, monitor and develop policies in relation to health and nutrition of children. Among the nutritional survey methods most used are the 24-hour recall, the journal of food, live weight of food and often semi-quantitative.