Rising Waters: Rebound and Subsidence Animation

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    Rising Waters: A Warmer World

    Nov. 5th, 2020

    Music: Rain over the Sea by Bruno Vouillon [SACEM]Complete transcript available. Music: Rain over the Sea by Bruno Vouillon [SACEM]Complete transcript available. Earth’s global sea levels are rising – and are doing so at an accelerating rate. Waters in the ocean are expanding as they absorb massive amounts of heat trapped by greenhouse gases in Earth’s atmosphere. Glaciers and ice sheets are adding hundreds of gigatons of meltwater into the oceans each year. With satellites, airborne missions, shipboard measurements, and supercomputers, NASA has been investigating sea level rise for decades. Together with our international and interagency partners, we’re monitoring the causes of sea level rise with high accuracy and precision. Global sea level is rising approximately 0.13 inches (3.3 millimeters) a year. That’s 30% more than when NASA launched its first satellite mission to measure ocean heights in 1992.nasa.gov/sea-level-rise-2020 Related pages

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    Rising Waters: Our Dynamic Earth

    Nov. 5th, 2020

    Universal Production Music: "Patisserie Pressure" by Benjamin James Parsons [PRS]Complete transcript available.This video can be freely shared and downloaded. While the video in its entirety can be shared without permission, some individual imagery provided by pond5.com and Artbeats is obtained through permission and may not be excised or remixed in other products. Specific details on stock footage may be found here. For more information on NASA’s media guidelines, visit https://www.nasa.gov/multimedia/guidelines/index.htmlNotes on Footage: Provided by Artbeats: 00:00-00:03; 00:08-00:15; 01:02-01:09; 01:48-01:52; 01:58-02:02Stock: 1:29 – 1:33 provided by Razvan25/Pond5 Universal Production Music: "Patisserie Pressure" by Benjamin James Parsons [PRS]Complete transcript available. It’s not only water processes that play a role in global sea level rise – ground movements can play a significant role as well. On a continental scale, Earth’s crust is still recovering from the last ice age. Around 20,000 years ago, Canada, the northeast United States, Scandinavia and other regions were weighed down by ice sheets. As these ice sheets melted and the weight on the continents eased, the land surface slowly rebounded. This gradual lift, the recovery from the last ice age as well as ice that is melting today, continues to alter the shape of ocean basins. Rising sea levels can also be compounded by sinking land. Land can compact as people pump water, oil or natural gas out of the ground. The Mississippi River Delta, for example, is essentially drowning as sinking ground is combined with higher sea levels. NASA is studying this case with a field campaign designed to study how sediments are accumulating on the delta. For More InformationSee [www.nasa.gov/specials/sea-level-rise-2020](www.nasa.gov/specials/sea-level-rise-2020) Related pages

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