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Sea surface height change from 1992 to 2019: Blue regions are where sea level has gone down, and orange/red regions are where sea level has risen (the visualization is based on satellite data). [ 2 ] Between 1901 and 2018, the average sea level rose by 15–25 cm (6–10 in), with an increase of 2.3 mm (0.091 in) per year since the 1970s.
The World Ocean. For example, the Law of the Sea states that all of the World Ocean is "sea", [8] [9] [10] [b] and this is also common usage for "the sea". Any large body of water with "Sea" in the name, including lakes. River – a narrow strip of water that flows over land from a higher elevation to a lower one
(A live tracking update of drifter locations is available through Google Earth at www.aoml.noaa.gov /phod /dac /gdp _maps.php.) The Global Drifter Program (GDP) (formerly known as the Surface Velocity Program (SVP)) was conceived by Prof. Peter Niiler , with the objective of collecting measurements of surface ocean currents , sea surface ...
Over geologic time sea level has fluctuated by more than 300 metres, possibly more than 400 metres. The main reasons for sea level fluctuations in the last 15 million years are the Antarctic ice sheet and Antarctic post-glacial rebound during warm periods. The current sea level is about 130 metres higher than the historical minimum.
A common and relatively straightforward mean sea-level standard is instead a long-term average of tide gauge readings at a particular reference location. [1] The term above sea level generally refers to the height above mean sea level (AMSL). The term APSL means above present sea level, comparing sea levels in the past with the level today.
The WOA consists of a climatology of fields of in situ ocean properties for the World Ocean. It was first produced in 1994 [ 2 ] (based on the earlier Climatological Atlas of the World Ocean , 1982 [ 3 ] ), with later editions at roughly four year intervals in 1998, 2001, 2005, 2009, 2013, 2018, and 2023.
Established in 1985, The Global Sea Level Observing System (GLOSS) is an Intergovernmental Oceanographic Commission (IOC) program whose purpose is to measure sea level globally for long-term climate change studies. The program's purpose has changed since the 2004 Indian Ocean earthquake and the program now collects real time measurements of sea ...
English: Bar chart showing NOAA's projection of sea level rise from 2020 to 2050 for the several coasts of the United States Data source: 2022 Sea Level Rise Technical Report. National Ocean Service, National Oceanic and Atmospheric Administration (NOAA) (February 2022). Archived from the original on November 29, 2022.