Facts about the Rising Sea
- Average global absolute sea level changing trend (Interactive Chart)
Bai, Lu, 2015, Global Average Sea Level Rise, Piktochart
<https://magic.piktochart.com/output/7354935-untitled-report-conflict-copy> Data is collected from (CSIRO 2015) and (NOAA 2015) |
The graph illustrate cumulative changes of average global absolute sea level* since 1880. Data is collected through long-term tide gauge measurements and recent satellite technology.
* Absolute sea level: The actual height of the ocean surface, excluding consideration of whether nearby land is rising or falling.
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Did you know?
- Surface of the ocean has been rising gradually and slightly for around 2,000 years. However, in recent years, there is a dramatic increase in the rate of change.
- The diagram shows the average absolute sea level change of the world and indicates the global sea level is increasing at an average rate of 0.06 inches every year from 1880 to 2013. However, since 1993, the average rate has increased to 0.11 – 0.14 inches per year, which almost double the rate of the long-term trend. (CSIRO 2015) and (NOAA 2015)
- There is a difference between absolute sea level rise and relative sea level rise. Relative sea level rise takes consideration of regional and local changes due to land and wind movements as well as coastal circulation patterns. Therefore relative sea level is not rising uniformly. The interactive graph below shows the top 20 countries most at-risk with their population exposure data.
- Top 20 Most Vulnerable Country (Interactive Map)
Bai, Lu, 2015, Top 20 Most Vulnerable Country, Piktochart
<https://magic.piktochart.com/output/7354111-untitled-report> Data is collected from (CSIRO 2015) and (NOAA 2015) |
Assuming current emissions trend continues, 650 million people around the globe may be under threatened by the end of the century.
Hover your mouse over the highlighted region and find out how many people are at risk ... |
Reference:
1. Climate Central. 2015. 20 countries Most At Risk From Sea Level Rise. Viewed August 2015
<http://www.weather.com/science/environment/news/20-countries-most-risk-sea-level-rise-20140924>
2. CSIRO (Commonwealth Scientific and Industrial Research Organisation). 2015. Sea-level rise from the late 19th to the early
21st century. Surv. Geophys. 32:585–602. Viewed August 2015
<www.cmar.csiro.au/sealevel/sl_data_cmar.html.>
3. NOAA (National Oceanic and Atmospheric Administration). 2015. Laboratory for Satellite Altimetry: Sea level rise. Viewed
August 2015.
<http://ibis.grdl.noaa.gov/SAT/SeaLevelRise/LSA_SLR_timeseries_global.php.>
<http://www.weather.com/science/environment/news/20-countries-most-risk-sea-level-rise-20140924>
2. CSIRO (Commonwealth Scientific and Industrial Research Organisation). 2015. Sea-level rise from the late 19th to the early
21st century. Surv. Geophys. 32:585–602. Viewed August 2015
<www.cmar.csiro.au/sealevel/sl_data_cmar.html.>
3. NOAA (National Oceanic and Atmospheric Administration). 2015. Laboratory for Satellite Altimetry: Sea level rise. Viewed
August 2015.
<http://ibis.grdl.noaa.gov/SAT/SeaLevelRise/LSA_SLR_timeseries_global.php.>