Quantifying Aggravated Threats to Stormwater Management Ponds by Tropical Cyclone Storm Surge and Inundation under Climate Change Scenarios

Stormwater management ponds (SMPs) protect coastal communities from flooding caused by heavy rainfall and runoff. If the SMPs are submerged under seawater during a tropical cyclone (TC) its storm surge, their function will be compromised. Under climate change scenarios, this threat is exacerbated sea level rise (SLR) more extreme cyclones. This study quantifies impact of cyclones surge inundation on South Carolina various SLR scenarios. A coupled hydrodynamic model calculates heights return periods using historical The decay coefficient method used to calculate areas different period surges According findings, stormwater aggravated surge. In Carolina, number at risk being inundated tides increases almost linearly with SLR, 10 for every inch TC all periods. Long Bay, Charleston, Beaufort were identified as high-risk areas. findings indicate where current need redesigned required. modeling analysis system in can employed evaluate effects other types SMP facilities regions.