GEO 109L-Earth, Environment, and Society Lab SCI 210L - The Dynamic Earth Lab Lab Exercise 12-Sea Level Change 1 Introduction In today's lab you will learn about some of the methods

earth scientists use to interpret, monitor, and predict sea level changes over different time scales (long v. short) and spatial locations (different coasts). With over half of the world's population living within 120 miles of a coastline, changes in sea level can have a significant impact on a large number of people. From potential challenges in navigation, managing port and coastal cities, agriculture infrastructure, to coastal erosion and storm susceptibility; the world's coastlines are facing a future with rising sea levels, and most likely, increasing rates of sea level rise. Sea Level changes are tracked primarily via satellite data since 1993. This graph shows a rate of global sea level rise from 1993-2020 of 3.3 mm/year. In this lab we will examine: - Has this rate changed over time? - Does the rate vary depending on location? SATELLITE DATA: 1993-PRESENT Data source Satellite sea level observations Credit NASA Goddard Space Flight Center 100 NAME: leight Variation (mm) 8 S Sea level trends (1993-2019) Table # RATE OF CHANGE 13.3 millimeters per year