Latest Pacific decadal oscillation Stories

2010-02-23 14:42:48

Climatologists have long known that human-produced greenhouse gases have been the dominant drivers of Earth's observed warming since the start of the Industrial Revolution. But other factors also affect our planet's temperature. Of these, the ocean plays a dominant role. Its effects helped nudge global temperatures slightly higher in 2009, and, according to NASA scientists, could well contribute to making 2010 the warmest year on record. Covering 71 percent of our planet's surface, the ocean...

2009-06-11 09:31:43

Chronology of growth rings from tropical Australia compiled for the first time Annual rings are acclaimed in representing natural climate archives. For the temperate latitudes it is known that the growth of these annual rings depend mainly on temperature and precipitation. In the tropics, however, with only slight seasonal variations, the correlation is not so evident. Now scientists of the GFZ German Research Center for Geosciences and their colleagues of the Australian National University...

2009-03-25 13:35:00

Global warming is 37 percent of the cause of massive droughts in Australia and extensive periods of dryness in the US, according to one Australian scientist. Peter Baines of Melbourne University in Australia told Reuters that rainfall levels have been dropping over the past 15 years, and global warming is 37 percent to blame for that decrease. Baines used global rainfall data to construct a model of atmospheric conditions over the past 50 years. "The 37 percent is probably going to increase...

2008-12-10 10:15:32

The latest image of sea-surface height measurements from the U.S./French Jason-1 oceanography satellite shows the Pacific Ocean remains locked in a strong, cool phase of the Pacific Decadal Oscillation, a large, long-lived pattern of climate variability in the Pacific associated with a general cooling of Pacific waters. The image also confirms that El Niño and La Niña remain absent from the tropical Pacific. The new image is available online at:...

2008-09-10 14:31:46

An oceanographer with the National Oceanic and Atmospheric Administration (NOAA) said Tuesday a change in atmospheric conditions has generated a feast for West Coast salmon and other marine life off the U.S. west coast. The change last fall in a cycle known as the Pacific Decadal Oscillation means that cold water from the Gulf of Alaska is now being carried down the west coast, bringing with it an abundance of tiny creatures called copepods that form the basis of the food chain, said Bill...

2008-09-03 11:10:00

Scientists announced on Wednesday that previously unexplainable outbreaks of plague in the U.S. may be linked to climate change in the Pacific Ocean. Scientists from Norway, The US and Sweden found that the number of infections in the US seemed to shift along with changing climate conditions known as the Pacific Decadal Oscillation (PDO). The outbreaks seemed to occur during times of warm, wet conditions, authors wrote in the Royal Society journal Biology Letters. The so-called "Black Death"...

2008-04-22 00:15:00

Boosted by the influence of a larger climate event in the Pacific, one of the strongest La Niñas in many years is slowly weakening but continues to blanket the Pacific Ocean near the equator, as shown by new sea-level height data collected by the U.S.-French Jason oceanographic satellite.This La Niña, which has persisted for the past year, is indicated by the blue area in the center of the image along the equator. Blue indicates lower than normal sea...

2006-10-29 03:00:18

By Lehodey, P; Alheit, J; Barange, M; Baumgartner, T; Et al ABSTRACT Fish population variability and fisheries activities are closely linked to weather and climate dynamics. While weather at sea directly affects fishing, environmental variability determines the distribution, migration, and abundance of fish. Fishery science grew up during the last century by integrating knowledge from oceanography, fish biology, marine ecology, and fish population dynamics, largely focused on the great...

2005-01-25 07:21:27

Goddard -- Observations and computer models have long proven that the Arctic plays an important role in maintaining a stable climate on Earth. However, significant changes in the Arctic environment, especially those over the past decade, could lead to dramatic swings in weather and climate patterns across the rest of the globe, with potentially far-reaching consequences for ecosystems and human populations. Societies that have adapted to their current climates may be faced with highly...

Word of the Day
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'