This webinar originally aired on 25 February 2015.

In 2013, the states of New York and Connecticut and the New England Interstate Water Pollution Control Commission funded the application of the Sea-Level Affecting Marshes Model (SLAMM) to the entire coast of New York and Long Island Sound. Model simulations incorporated the most up-to-date wetland layers and hydro-enforced LiDAR-derived elevation data with an extensive tide range database and dynamic marsh accretion feedbacks based on mechanistic models of marsh and water quality characteristics. Simulations were run under four New York-specific scenarios of future sea level rise. Stochastic uncertainty analyses were completed, providing confidence intervals for projections, spatial maps showing likelihood of land conversions, and statistical indicators to characterize possible future outcomes and thus better assist decision making. This presentation will discuss the SLAMM application and results, with a focus on the results of the uncertainty analyses and their implications for identifying appropriate planning, management, and adaptation strategies. Learn more at

This webinar was presented by Amy Polaczyk of Warren Pinnacle Consulting, and it was cosponsored by the EBM Tools Network.