THE TIJUANA RIVE WATERSHED蒂华纳河流域.pptVIP

THE TIJUANA RIVER WATERSHED NSDI COMMUNITY DEMONSTRATION PROJECT MAJOR ISSUES IN THE WATERSHED Water pollution and flooding are significant problems Natural resources are being rapidly depleted Infrastructure improvements are not keeping pace with population growth Inadequate data exist concerning the demographic, economic, infrastructural, and economic characteristics of the watershed Transborder communications and data access are inadequate Transborder asymmetries in technology, culture, and funding are substantial PROJECT IDENTIFICATION Selection as a NSDI demonstration site Convene project representatives Survey issues, data availability, and data quality Stakeholder workshop to define project TRW DEMONSTRATION APPLICATION SELECTION CRITERIA Address binational issues of concern Integrate human and environmental dimensions Build upon existing efforts and GIS expertise at SDSU and COLEF Doable and capable of being completed by June 2000 Demonstrate how the NSDI can be applied to meet local needs PROJECT OBJECTIVES Assess flood risk in the Lower Tijuana River Watershed and Goat Canyon/Ca?on de los Laureles Educate decision-makers in the use of GIS tools for assessing community vulnerability to flooding Develop NSDI compliant database Promote broad use of community-based natural hazard risk assessment methodology using GIS Long term goal: To develop a flood forecasting model and warning system RESEARCH QUESTIONS What areas of the lower Tijuana River Watershed and Goat Canyon/Ca?on de los Laureles are likely to be inundated by 25, 50, 100, and 500 year flood events? What are the human communities and natural environments that are vulnerable to 25, 50, 100, and 500 year flood events? How has/will changing land use affect flood risk? FLOOD HAZARD MODELLING METHODOLOGY NSDI PROJECT RESULTS Assessment of flood risk in the lower Tijuana River Watershed Updated flood risk zones for the Tijuana River Valley NSDI compliant publicly accessible database Impro