Acuweather discusses how sea level rise will have major impacts in the Honolulu area for decades to come. New research from the University of Hawaii has determined that sea level rise will likely cause large percentages of land in the Honolulu, Hawaii, area to be impacted by three flood mechanisms at the same time. [No study link is provided.]
A simultaneous combination of ocean water washing directly over the shoreline, groundwater inundation as the water table rises closer to the surface and reverse flow through the city drainage system may contribute to flooding, especially during extreme high tide events.
Key excerpt from the EurekAlert report…
“This is significant because many people think that sea level rise can be mitigated by seawalls,” said Shellie Habel, lead author of the study and coastal geologist and extension agent with the University of Hawai’i Sea Grant College Program and UH Coastal Geology Group. “But a seawall will not stop groundwater inundation. Our results highlight the need to readjust our thinking regarding the flooding that accompanies sea level rise. We want to be sure to implement flood management strategies that will be effective at mitigating flooding.”