Select your localized edition:

Close ×

More Ways to Connect

Discover one of our 28 local entrepreneurial communities »

Be the first to know as we launch in new countries and markets around the globe.

Interested in bringing MIT Technology Review to your local market?

MIT Technology ReviewMIT Technology Review - logo


Unsupported browser: Your browser does not meet modern web standards. See how it scores »

{ action.text }

Even though over seventy percent of the earth’s surface is ocean-more than one billion-billion tons of water-oceanographers still know very little about it. Compared to the sophisticated data collection and information technologies used for atmospheric research, science’s ability to forecast, or even record, ocean conditions remains antiquated.

An international collaborative effort, called the Global Ocean Data Assimilation Experiment, last month announced plans to improve the process. The group intends to tie together a world-wide army of oceanographic floats and satellites in order to get an unprecedented daily view of the high seas. Organizers say these new space and water-based systems will fill the longstanding gap in ocean monitoring abilities that has prevented our ability to better understand the ocean and forecast its constantly changing face.

According to Neville Smith, chair of the project’s international steering team, plans began to form in 1998 as a number of satellites that would provide a wealth of needed ocean data got ready to launch. The satellite Jason-1, launched by NASA last December, uses an altimeter to precisely measure aspects of ocean-surface topography, such as surface conditions, circulation and sea levels. Satellites soon to launch will measure surface winds and other phenomena.

But satellites alone are not enough, says Phil Sharfstein, the data manager for the U.S. component of the assimilation experiment, based at the Navy’s Fleet Numerical Meteorology and Oceanographic Center in Monterey, CA. “The main problem is that there’s just not that much data out there,” he says. For example, satellites can measure current sea levels, but predicting future levels requires information that a satellite can’t collect, such as salinity and deep-sea temperatures.

1 comment. Share your thoughts »

Tagged: Communications

Reprints and Permissions | Send feedback to the editor

From the Archives


Introducing MIT Technology Review Insider.

Already a Magazine subscriber?

You're automatically an Insider. It's easy to activate or upgrade your account.

Activate Your Account

Become an Insider

It's the new way to subscribe. Get even more of the tech news, research, and discoveries you crave.

Sign Up

Learn More

Find out why MIT Technology Review Insider is for you and explore your options.

Show Me