3 conjuntos de datos encontrados

OpenLISEM is an open-source hydrological model suited for the simulation of floods, flash floods and erosion events. The following sections provide an overview of the results from the OpenLISEM model used in the exposure mapping A 30x30m flood map (maximum flood height) for the BuPuSa region was developed for several points on the intensity-frequency-duration curve. This curve represents the extreme value analysis (EVA) for the rainfall across the BuPuSa area. Based on 50 years of historic rainfall data from TAMSAT the EVA is developed for a 1000 year period. From this different rainfall intensities area taken which are referred to at the return period. The statistical possibility of a certain rainfall intensity to happen once in X many years. Flood maps were developed for the following return periods: 1/2, 1/10, 1/50, 1/100 and 1/1000. In addition to 5 different return periods, two different scenarios were modeled. A short high intensity rainfall event that typically causes flash floods, and a longer term lower intensity rainfall event that typically causes fluvial (river) floods. These events were represented by respectively a 6h rainfall event and a 14 day rainfall event. As a result 10 different flood maps were developed.

El visor de SIDS proporciona información relacionada con las aguas subterráneas en los Pequeños Estados Insulares en Desarrollo. En la actualidad, el sistema contiene principalmente información derivada del Programa de Evaluación de Aguas Transfronterizas (TWAP) sobre 43 SIDS. Los datos incluyen indicadores que describen las dimensiones hidrogeológicas, ambientales, socioeconómicas y de gobernanza de los sistemas de aguas subterráneas de los SIDS.

Los datos han sido obtenidos a partir de encuestas por cuestionario y un exhaustivo estudio documental realizado por la Universidad Simon Fraser (Canadá) y coordinado por UNESCO-IHP. La información en el sistema puede ser explorada y analizada mediante un visor basado en mapas, lo que resulta particularmente útil para realizar análisis comparativos entre múltiples SIDS. Además, también están disponibles fichas informativas de los SIDS que proporcionan resúmenes claros por cada SIDS. Se recopilarán y cargarán más datos sobre los SIDS en el visor a medida que estén disponibles.

Para cualquier consulta o comentario sobre los datos e información de los SIDS, por favor visite nuestra página del Área Focal de SIDS. (https://www.un-igrac.org/areas-expertise/small-island-developing-states-sids)

This publication aims to bridge the gap between climate and disasters, in the face of the uncertainties that climate change poses to water managers and policymakers. Composed of a compilation of worldwide case studies, it provides examples of innovative water management and climate risk assessment approaches. The publication also highlights the National Determined Contributions (NDCs) and National Adaptation Plans (NAPs) with the aim of identifying links between these high-level frameworks, DRR and water issues, and describing how the policy-practice linkages can be turned into action.