The SEARISE model is based on a detailed economic model of the San Francisco Bay Area. The model includes data on land use, property values, and infrastructure, as well as projections of sea-level rise under different climate scenarios. The model can be used to simulate the impacts of different adaptation strategies on the economy, including the costs of construction and maintenance, the benefits of reduced flooding, and the indirect impacts of sea-level rise on tourism, trade, and other economic sectors.
The researchers used the SEARISE model to evaluate the impacts of four different adaptation strategies in the San Francisco Bay Area:
* Building sea walls: Sea walls are physical barriers that can be built to protect coastal areas from flooding. Sea walls are effective at reducing flooding, but they can also be expensive to build and maintain.
* Raising buildings: Raising buildings above the flood plain can help to protect them from flooding. Raising buildings is less expensive than building sea walls, but it can also be disruptive to businesses and residents.
* Relocating communities: Relocating entire communities away from the coast is the most expensive adaptation strategy, but it can also be the most effective. Relocation can avoid the costs of building sea walls or raising buildings, and it can also reduce the risk of flooding-related disasters.
* No adaptation: The "no adaptation" scenario represents the case in which no action is taken to adapt to sea-level rise. In this scenario, flooding would cause increasingly severe economic Schäden, as more and more land and property is inundated.
The researchers found that the best adaptation strategy for the San Francisco Bay Area depends on the specific location and the projected rate of sea-level rise. In some areas, sea walls may be the most cost-effective option, while in other areas, raising buildings or relocating communities may be a better choice.
The SEARISE model is a powerful tool that can help policymakers and planners evaluate the costs and benefits of different sea-level rise adaptation strategies. The model can be used to make informed decisions about how to protect coastal communities from the impacts of climate change.
The researchers behind the SEARISE model hope that it will be used by policymakers and planners around the world to make informed decisions about how to adapt to sea-level rise. The model is available for download on the UC Berkeley website.
