GEOLOGY

Detailed explanation-1: -Global mean sea level has risen about 8–9 inches (21–24 centimeters) since 1880. The rising water level is mostly due to a combination of melt water from glaciers and ice sheets and thermal expansion of seawater as it warms.

Detailed explanation-2: -Introduction. Sea level has risen by ∼20 cm over the last 150 years or so (Figure 1). The rate of change has been increasing through time, however, and in the early 21st Century it is ∼3.3 mm/yr and growing at a rate of ∼0.8 mm/yr per decade (Nerem et al., 2018).

Detailed explanation-3: -Between 1901 and 2018, the average global sea level rose by 15–25 cm (6–10 in), or 1–2 mm per year. This rate is increasing; sea levels are now rising at a rate of 3.7 mm (0.146 inches) per year.

Detailed explanation-4: -The term “global mean sea level” in the context of our research is defined as the area-weighted mean of all of the sea surface height anomalies measured by the altimeter in a single, 10-day satellite track repeat cycle.

Detailed explanation-5: -The high-end global mean sea-level rise is now projected to be up to 1.3-1.6 meters for strong warming in 2100.