Description
Sea-level rise poses significant economic threats, particularly to coastal communities, by increasing the risk of flooding and storm surges that can damage infrastructure, homes, and businesses, leading to costly repairs and insurance claims. It also threatens coastal ecosystems that are vital for fishing and tourism industries, potentially leading to job losses and reduced income. Real estate values may decline in vulnerable areas, impacting local economies and tax revenues. This product represents the future long-term risk from sea level rise globally at decadal time steps under five global mean sea level rise scenarios for the period 2020 to 2150.
Technical Description
The SpatiaFi Sea Level Rise Projections dataset captures projected risk of sea level rise at decadal time steps for five different global mean sea level rise scenarios. These risk maps reflect the future long-term risk from sea level rise globally by identifiying where the sea level may exceed the height of the local ground surface.
These maps compare sea level rise projections developed by NOAA to a high-resolution global elevation map from the General Bathymetric Chart of the Oceans (GEBCO). The spatial scale for this dataset is roughly 1.8 km/pixel and data are available in decadal steps for the years 2020 - 2150.
The probability (between 0-1) that decadally-averaged sea level rise exceeds local elevation at
each grid point is provided for the combinations of NOAA sea level rise scenario and time horizon.
These probabilities are then mapped into a risk classification to bin locations by their relative risk of
future inundation due to mean sea level change.