Computer Program Monitors, Identifies Changing Ocean Features
December 23, 2010 11:03 AM
comment(s) - last by
Satellite map of the ocean off the west coast of Africa
(Source: Jose A. Piedra-Fernandez, University of Almeria, Spain)
Researchers plan to improve the program and use it to track changing environmental conditions
University of Almeria
researchers have built a computer program that is capable of monitoring and analyzing large amounts of satellite data in order to assist scientists in tracking changing environmental conditions.
James Wang, professor of information sciences and technology at Penn State, and Jose A. Piedra-Fernandez, an assistant professor of information sciences and technology at the University of Almeria in Spain who is currently visiting Penn State, have designed the program to study a vast amount of satellite data and images in an attempt to monitor the ever-changing and intricate
. They are mainly focused on analyzing mesoscale regional ocean features within the images produced by satellites.
"All of the data and information that is continually collected by satellites and sensors can cause tons of problems for scientists, who simply don't have the time to analyze every pixel of every satellite image," said Wang. "Our goal has been to
provide a tool
that would create useful information or knowledge from this large pool of data."
To make this program, Wang and Piedra-Fernandez created a database of ocean structures and taught the program to recognize changes in the ocean. The computer program is similar to a Bayesian network, which uses probability to make decisions. Wang and Piedra-Fernandez made sure to make the program as complex as the climate itself by separating ocean regions from land regions, adjusting for possible earth-and-solar-based interference sources, and identifying features from particular regions of ocean. The program is then able to filter regions of the images by ranking relationships between features on scale based on relevance and strength. This allows the computer to recognize
like wakes, upwellings and eddies.
Researchers then tested the computer program on satellite images of oceans in the Mediterranean Coast, the Iberian Atlantic and close to the Canary Islands. The images were provided by the
National Oceanic and Atmospheric Administration
and the Advanced Very High Resolution Radiometer. The tests consisted of over 1,000 real oceanic features, made up of 472 upwellings, 119 cloudy upwellings, 180 wakes, 40 cyclonic eddies, 10 anticyclonic eddies and 180 "misclassified" regions.
"In almost all cases, the proposed methodology improves the accuracy rate and reduces the number of features necessary to get a good ocean structures classification," said Piedra-Fernandez.
The next step is to add features such as chlorophyll and salinity concentrations. Researchers would also like to improve the image classification system.
was published in
IEEE Transactions on Geoscience and Remote Sensing
This article is over a month old, voting and posting comments is disabled
That's a great job
12/23/2010 12:09:48 PM
Something pretty impressive and useful.
RE: That's a great job
12/23/2010 2:01:14 PM
Agreed. Maybe with this tool, they'll be able to figure out what causes El Nino if they're related. Which in Spanish means... The Nino. (Sorry that was a funny SNL skit)
RE: That's a great job
12/23/2010 6:19:32 PM
Don't be a Stiffly Stifferson.
"Well, we didn't have anyone in line that got shot waiting for our system." -- Nintendo of America Vice President Perrin Kaplan
Study: New Model Says that CO2 Levels Ultimately Control Earth's Temp.
October 19, 2010, 2:15 PM
New Model Shows Stopping Global Warming Will Stop Ocean Acidification
August 24, 2010, 8:27 AM
Swarm of GMO Mosquitoes Set to Fly in South Florida
January 27, 2015, 6:40 PM
Crowdfunded Sex Toy Lets You Control the Action From Your Wii Nunchuk
January 15, 2015, 3:42 PM
Elon Musk Plays Warcraft; But Still Finds Time to Sleep, Build a Mars Colony Ship
January 6, 2015, 9:54 PM
SpaceX Scrubs Falcon 9 Launch to ISS, Barge Landing Test, Friday Redo Targeted
January 6, 2015, 4:02 PM
Quick Note; Wreckage of Malaysian-Owned Passenger Jet Found
December 30, 2014, 12:42 PM
Quick Note: Drone Loses Fight to the Death With Kangaroo
December 23, 2014, 3:28 PM
Most Popular Articles
Under the Hood: How DirectX 11.3 and 12 Will Supercharge Windows 10 Gaming
January 23, 2015, 12:34 PM
Microsoft Shows Off Latest Windows 10 Build, Preps it for Next Week Release
January 21, 2015, 2:57 PM
BlackBerry CEO Claims Devs are Violating Net Neutrality by Not Supporting BB10
January 22, 2015, 4:37 PM
2016 Cadillac CTS-V Packs 640 hp Punch with 200 mph Reach
January 23, 2015, 3:25 PM
Will Google Become America's Fifth Major Carrier?
January 22, 2015, 12:42 PM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2015 DailyTech LLC. -
Terms, Conditions & Privacy Information