Volumen 5 No. especial (2014) - IC: Congreso de Ingeniería Civil

Permanent URI for this collectionhttps://dspace-test.ucuenca.edu.ec/handle/123456789/21325

Browse

Browsing Volumen 5 No. especial (2014) - IC: Congreso de Ingeniería Civil by Author "Ballari, Daniela Elisabet"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Imágenes TRMM para identificar patrones de precipitación e índices ENSO en Ecuador
    (Universidad de Cuenca, 2014) Campozano Parra, Lenin Vladimir; Ballari, Daniela Elisabet; Célleri Alvear, Rolando Enrique; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca
    Understanding spatio-temporal precipitation patterns and how they are related to ENSO are important to predict the spatial impact of ENSO events and develop early warning systems. While ENSO has been previously studied in Ecuador using rain gauge data, its impact on the spatial rainfall pattern is largely unknown. Thus, the purpose of this study was to use the Tropical Rainfall Measuring Mission satellite imagery (TRMM) to identify spatio-temporal patterns of precipitation from January to April, the season more affected by ENSO in Ecuador, and their relation with ENSO indexes. Principal component analysis was applied over the 16-year TRMM imagery, and score time series were correlated with the tropical Pacific surface sea temperature (tP SST) of Niño 1+2 region as well as with the Trans Niño Index (TNI). Results suggest that TNI and Niño 1+2 indicators are both needed to estimate the impact of tP SST on the precipitation during JA season. Strong positive anomalies on Niño 1+2 are positively correlated with higher precipitation in coastal plain of Ecuador and below average precipitation in the Amazon region. High values of TNI are directly related to an enhancement of precipitation all over the country.
  • Thumbnail Image
    Item
    Tendencias en infraestructuras de datos espaciales en el contexto latinoamericano
    (Universidad de Cuenca, 2014) Ballari, Daniela Elisabet; Vilches, Luis; Randolf Perez, Diego; Pacheco, Diego; Fernández, Virginia; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca
    Because of technological trends such as mobile devices, sensors and web2.0, Spatial Data Infrastructures (SDI) are converging to mobile systems in real-time and with active citizen participation. While these trends have been already analyzed and integrated as part of the SDI in Europe and North America, in the Latin American context, they have not been deeply investigated. Therefore, in order to contribute to its progress in Latin America, this article presents the state of the art of SDI’s trends in Latin America from a literature review, complemented with a regional survey. The results show that despite major initiatives implementing SDI’s trends; their progress in Latin America is still incipient, being still in what is call the second stage of evolution.