Featured Research

from universities, journals, and other organizations

Google Earth ocean terrain receives major update: Data sharpen resolution of seafloor maps, correct 'discovery' of Atlantis

Date:
February 2, 2012
Source:
Scripps Institution of Oceanography / University of California, San Diego
Summary:
Internet information giant Google updated ocean data in its Google Earth application this week, reflecting new bathymetry data assembled by researchers from around the world. The newest version of Google Earth includes more accurate imagery in several key areas of ocean using data collected by research cruises over the past three years.

Sounding tracks around Hawaii: Lines depicting where ship-based soundings have been made radiate from the Hawaiian Islands. They are part of an update of Google Earth's ocean terrain.
Credit: Image courtesy of Scripps Institution of Oceanography

Internet information giant Google updated ocean data in its Google Earth application this week, reflecting new bathymetry data assembled by Scripps Institution of Oceanography, UC San Diego, NOAA researchers and many other ocean mapping groups from around the world.

Related Articles


The newest version of Google Earth includes more accurate imagery in several key areas of ocean using data collected by research cruises over the past three years.

"The original version of Google Ocean was a newly developed prototype map that had high resolution but also contained thousands of blunders related to the original archived ship data," said David Sandwell, a Scripps geophysicist. "UCSD undergraduate students spent the past three years identifying and correcting the blunders as well as adding all the multibeam echosounder data archived at the National Geophysical Data Center in Boulder, Colorado."

"The Google map now matches the map used in the research community, which makes the Google Earth program much more useful as a tool for planning cruises to uncharted areas," Sandwell added.

For example, the updated, more precise data corrects a grid-like artifact on the seafloor that was misinterpreted in the popular press as evidence of the lost city of Atlantis off the coast of North Africa.

Through several rounds of upgrades, Google Earth now has 15 percent of the seafloor image derived from shipboard soundings at 1-kilometer resolution. Previous versions only derived about 10 percent of their data from ship soundings and the rest from depths predicted by Sandwell and NOAA researcher Walter Smith using satellite gravity measurements. The two developed the prediction technique in 1994. The satellite and sounding data are combined with land topography from the NASA Shuttle Radar Topography Mission (SRTM) to create a global topography and bathymetry grid called SRTM30_PLUS.

This new version includes all of the multibeam bathymetry data collected by U.S. research vessels over the past three decades including 287 Scripps expeditions from research vessels Washington, Melville and Revelle. UCSD undergraduate student Alexis Shakas processed all the U.S. multibeam data and then worked with Google researchers on the global integration.

The next major upgrade to the grid will occur later this year using a new gravity model having twice the accuracy of previous models. The new gravity information is being collected by a European Space Agency satellite called CryoSat that was launched in February 2010.


Story Source:

The above story is based on materials provided by Scripps Institution of Oceanography / University of California, San Diego. Note: Materials may be edited for content and length.


Cite This Page:

Scripps Institution of Oceanography / University of California, San Diego. "Google Earth ocean terrain receives major update: Data sharpen resolution of seafloor maps, correct 'discovery' of Atlantis." ScienceDaily. ScienceDaily, 2 February 2012. <www.sciencedaily.com/releases/2012/02/120202164819.htm>.
Scripps Institution of Oceanography / University of California, San Diego. (2012, February 2). Google Earth ocean terrain receives major update: Data sharpen resolution of seafloor maps, correct 'discovery' of Atlantis. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2012/02/120202164819.htm
Scripps Institution of Oceanography / University of California, San Diego. "Google Earth ocean terrain receives major update: Data sharpen resolution of seafloor maps, correct 'discovery' of Atlantis." ScienceDaily. www.sciencedaily.com/releases/2012/02/120202164819.htm (accessed November 26, 2014).

Share This


More From ScienceDaily



More Computers & Math News

Wednesday, November 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Predictions Of Tablets' Demise Sound Familiar

Predictions Of Tablets' Demise Sound Familiar

Newsy (Nov. 26, 2014) The tablet's days are numbered, at least according to a recent IDC report. The market-research firm paints a grim outlook for tablets. Video provided by Newsy
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com
FCC Forces T-Mobile To Alert Customers Of Data Throttling

FCC Forces T-Mobile To Alert Customers Of Data Throttling

Newsy (Nov. 25, 2014) T-Mobile and the FCC have reached an agreement requiring the company to alert customers when it throttles their data speeds. Video provided by Newsy
Powered by NewsLook.com
Symantec Uncovers Sophisticated Spying Malware Regin

Symantec Uncovers Sophisticated Spying Malware Regin

Newsy (Nov. 24, 2014) A Symantec white paper reveals details about Regin, a spying malware of unusual complexity which is believed to be state-sponsored. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins