ANALYSIS OF HISTORICAL EXTREME COASTAL WATER LEVEL, AND CONTRIBUTORS ALONG SOUTH AMERICAN PACIFIC COAST

Coastal behavior in South American Pacific coasts (SAPC) is subjected to oceanographic and tectonics conditions and those triggered by anthropogenic and climate change. Extreme Coastal Water Level (ECWL) is considered an important variable for coastal communities, infrastructure design, ports, and harbor operations (IPCC AR-6) due to the integration in a determinist approach of Relative Sea Level Change (RSLC), Astronomical Tides (AT), Storm Surge (SS), and Waves Run-up (Rup2percent). Vertical Land Motions produced (VLM) by tectonics along the SAPC are generated because the Nazca plate subducts beneath the South American plate and can generate secular uplift/subsidence of about 1 to 10 mm/yr (Ruegg et al., 2009) that are comparable with sea level rise rates or even larger. This study aims to understand the historical behavior and trends of the ECWL along the SAPC and their individual contributors, and how they interact with the VLMs produced by tectonics.