tchaddad
commented
1 year ago From Meg:
“About” section tab on the SLR viewer
Sea Level Rise on the Oregon coast will result in increased storm wave, flooding, and erosion problems. This mapping tool is intended to highlight areas that will be affected by sea level rise related hazards including storm waves, flooding, and erosion in the next 30-50 years. While the north and south coast regions are experiencing slower sea level rise due to tectonic uplift, sea level rise is expected to surpass uplift in the near future. The amount of sea level rise will differ along the coast, so there is no one number that can be applied for all of Oregon. The planning area boundary for the outer coast uses a combination of storm waves, flooding, and coastal erosion zones. The planning area boundary for the estuaries (excluding the Columbia River Estuary) includes a 1.5ft sea level rise plus a 100-year flood event (1% chance yearly occurrence or a 26% chance over the course of a 30-year mortgage). The planning area boundary for the Columbia River Estuary includes a 4.9ft sea level rise to account for not only sea level rise, but also total water level (including tides, storms, and floods). The planning area is a combination of datasets from FEMA, DOGAMI, and the Lower Columbia Estuary Partnership. Planning for sea level rise is essential to prepare for impacts, identify adaptation strategies, and foster healthy, vibrant, and resilient coastal communities.
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