Featured Research

from universities, journals, and other organizations

La Nina -- Still A "Cool" Problem Child

Date:
March 27, 2000
Source:
NASA/Jet Propulsion Laboratory
Summary:
The latest U.S.-French TOPEX/Poseidon satellite imagery shows the persistent La Nina pattern continues to dominate the Pacific Ocean in a very similar manner to this time last year. For more than a year now, lower than normal sea-surface heights, indicating cooler temperatures, have continued along the coasts of the Americas and have spread out into the tropical ocean.

The latest U.S.-French TOPEX/Poseidon satellite imagery shows the persistent La Nina pattern continues to dominate the Pacific Ocean in a very similar manner to this time last year. For more than a year now, lower than normal sea-surface heights, indicating cooler temperatures, have continued along the coasts of the Americas and have spread out into the tropical ocean. In contrast are the higher than normal sea-surface heights that show warmer temperatures dominating the entire western Pacific.

These TOPEX/Poseidon data, collected over the latest 10-day sampling cycle, March 1 to 11, 2000, show the La Nina condition still exists. See http://www.jpl.nasa.gov/elnino/ . The image of sea surface heights reflects unusual patterns of heat storage in the ocean. Sea-surface height is shown relative to normal height (green). The cooler water (blue and purple) measures between 8 and 24 centimeters (3 and 9 inches) lower than normal. The giant horseshoe of warmer water (red and white) continues to dominate the western Pacific with higher than normal sea-surface heights between 8 and 24 centimeters (3 and 9 inches).

This view of the oceans from TOPEX/Poseidon is an input to the National Oceanic and Atmospheric Administration (NOAA) seasonal forecasts. The impacts of current ocean conditions in the Pacific for spring in the U.S., according to Dr. Ants Leetmaa, director of NOAA's Climate Prediction Center, imply drier than normal conditions for much of the southern half of the U.S. Leetmaa says the conditions also indicate above-normal rainfall in the Pacific northwest, and a warmer than normal U.S., except for the west coast where spring conditions will be near normal. (NOAA seasonal forecasts can be found on http://www.cpc.ncep.noaa.gov/ .)

Scientists continue to debate whether this image hints at the presence of a large, longer lasting climate pattern, the Pacific Decadal Oscillation. This long-term pattern that covers most of the Pacific Ocean has significant implications for global climate, especially over North America. See a January press release on that topic at http://www.jpl.nasa.gov/elnino/20000118.html.

The TOPEX/Poseidon mission is managed by the Jet Propulsion Laboratory for NASA's Earth Science Enterprise, Washington, D.C. JPL is a division of the California Institute of Technology, Pasadena, Calif. For more information see http://topex-www.jpl.nasa.gov/ .


Story Source:

The above story is based on materials provided by NASA/Jet Propulsion Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

NASA/Jet Propulsion Laboratory. "La Nina -- Still A "Cool" Problem Child." ScienceDaily. ScienceDaily, 27 March 2000. <www.sciencedaily.com/releases/2000/03/000327085307.htm>.
NASA/Jet Propulsion Laboratory. (2000, March 27). La Nina -- Still A "Cool" Problem Child. ScienceDaily. Retrieved September 19, 2014 from www.sciencedaily.com/releases/2000/03/000327085307.htm
NASA/Jet Propulsion Laboratory. "La Nina -- Still A "Cool" Problem Child." ScienceDaily. www.sciencedaily.com/releases/2000/03/000327085307.htm (accessed September 19, 2014).

Share This



More Earth & Climate News

Friday, September 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Wildfires in CA Burn Forest Asunder

Raw: Wildfires in CA Burn Forest Asunder

AP (Sep. 18, 2014) — An out-of-control Northern California wildfire has nearly 2,800 people from their homes as it continues to grow, authorities said Thursday. Authorities said a man has been arrested on suspicion of arson for starting the fire on Saturday. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Raw: Elephant Undergoes Surgery in Tbilisi Zoo

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

AP (Sep. 18, 2014) — Grand the elephant has successfully undergone surgery to remove a portion of infected tusk at Tbilisi Zoo in Georgia. British veterinary surgeons used an electric drill to extract the infected piece. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) — Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) — A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
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:
from the past week

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