State of the steric sea level rise, 1955-2003

February 16, 2009

Based on a detailed analysis of ocean vertical temperature profiles for the 1955-2008 period, Sydney Levitus, lead author, talks about the change of global average sea level induced by the observed warming of the world ocean during the past 53 years. The warming of the world ocean is consistent with the amount of warming expected as a result of the observed increase in greenhouse gases in earth's atmosphere.

The observed ocean warming has contributed approximately 20 mm to global average sea level during this time period. This is simply the phenomenon of salt water expanding when it is warmed. This expansion effect (or contraction if cooling occurs) is known as the "thermosteric component of sea level change."

This estimate is similar to previous estimates even after recently identified instrumentals errors are corrected for and additional historical data has been added to the scientists' database. The thermosteric component of sea level change is only one of several phenomena affecting sea level. Others include the melting of glaciers, the transfer of liquid water between the continents and oceans, and the impoundment of water by dams.

Levitus will also describe the changes in global sea level, resulting from changes in the distribution of temperature and freshwater in the world ocean during the same 1955 - 2008 time scale.
-end-
To learn more about Levitus's research, please attend his presentation. Journalists are welcome to interview Levitus either before or following his presentation.

State of the Steric Sea Level Rise, 1955
Sydney Levitus, National Oceanic and Atmospheric Administration (NOAA)
NOAA Ocean Climate Laboratory, Director of the World Data Center for Oceanography
Monday, Feb. 16, 9:30 a.m. to 12:30 p.m., HRC Columbus IJ

NOAA Headquarters

Related Greenhouse Gases Articles from Brightsurf:

Mitigation of greenhouse gases in dairy cattle through genetic selection
Researchers in Spain propose mitigating methane production by dairy cattle through breeding.

Researchers control cattle microbiomes to reduce methane and greenhouse gases
''Now that we know we can influence the microbiome development, we can use this knowledge to modulate microbiome composition to lower the environmental impact of methane from cows by guiding them to our desired outcomes,'' Ben-Gurion University of the Negev Prof Mizrahi says.

A new look into the sources and impacts of greenhouse gases in China
Special issue of Advances in Atmospheric Sciences reveals new findings on China's GHG emissions and documents changes in local and regional environments.

New catalyst recycles greenhouse gases into fuel and hydrogen gas
Scientists have taken a major step toward a circular carbon economy by developing a long-lasting, economical catalyst that recycles greenhouse gases into ingredients that can be used in fuel, hydrogen gas, and other chemicals.

Making microbes that transform greenhouse gases
A new technique will help not only reduce greenhouse gas emissions, but the potential to reduce the overall dependence on petroleum.

Reducing greenhouse gases while balancing demand for meat
Humans' love for meat could be hurting the planet. Many of the steps involved in the meat supply chain result in greenhouse gas emissions.

White people's eating habits produce most greenhouse gases
White individuals disproportionately affect the environment through their eating habits by eating more foods that require more water and release more greenhouse gases through their production compared to foods black and Latinx individuals eat, according to a new report published in the Journal of Industrial Ecology.

Degrading plastics revealed as source of greenhouse gases
Researchers from the University of Hawai'i at Mānoa School of Ocean and Earth Science and Technology (SOEST) discovered that several greenhouse gases are emitted as common plastics degrade in the environment.

What natural greenhouse gases from wetlands and permafrosts mean for Paris Agreement goals
Global fossil fuel emissions would have to be reduced by as much as 20 percent more than previous estimates to achieve the Paris Agreement targets, because of natural greenhouse gas emissions from wetlands and permafrost, new research has found.

Greenhouse gases were the main driver of climate change in the deep past
Greenhouse gases were the main driver of climate throughout the warmest period of the past 66 million years, providing insight into the drivers behind long-term climate change.

Read More: Greenhouse Gases News and Greenhouse Gases Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.