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Global warming: Oceans at all-time record high temps

Pacific Ocean is cooking, even without El Niño

NOAA Sea Surface Temperature anomaly (with respect to period 1854-2013) averaged over global oceans (red) and over North Pacific (0-60oN, 110oE-100oW) (cyan). September 2014 temperatures broke the record for both global and North Pacific Sea Surface Temperatures. b) Sea Surface Temperature anomaly of September 2014 from NOAA's ERSST dataset. Credit: Axel Timmermann

NOAA Sea Surface Temperature anomaly (with respect to period 1854-2013) averaged over global oceans (red) and over North Pacific (0-60oN, 110oE-100oW) (cyan). September 2014 temperatures broke the record for both global and North Pacific Sea Surface Temperatures. b) Sea Surface Temperature anomaly of September 2014 from NOAA’s ERSST dataset.
Credit: Axel Timmermann.

Staff Report

FRISCO — Global ocean temperatures have soared to the highest level in recorded history this year, and the rate of warming has accelerated since April, according to scientists with the University of Hawaii at Manoa.

“This summer has seen the highest global mean sea surface temperatures ever recorded since their systematic measuring started,” said Axel Timmermann, a climate scientist at the university’s International Pacific Research Center. “Temperatures even exceed those of the record-breaking 1998 El Niño year,” Timmermann said, adding that the new data analysis shows that the global warming pause, if there was one, is over.

“The 2014 global ocean warming is mostly due to the North Pacific, which has warmed far beyond any recorded value,” he said, adding that the temperature trend in the Pacific has shifted hurricane tracks, weakened trade winds, and bleached corals around the Hawaiian Islands. Continue reading

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Climate: Is drought relief in sight for California?

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The southern U.S., including parts of drought-hit Arizona, may see above-average precipitation this winter.

Climate experts say there’s good chance of average precipitation in California, but recovery will take a while

Staff Report

FRISCO — There may be some drought relief for California this winter, but the state won’t make up a huge moisture deficit in just one rainy season, federal climate scientists said this week, releasing their winter season outlook.

“Complete drought recovery in California this winter is highly unlikely,” said Mike Halpert, acting director of NOAA’s Climate Prediction Center.”While we’re predicting at least a 2 in 3 chance that winter precipitation will be near or above normal throughout the state, with such widespread, extreme deficits, recovery will be slow,” Halpert added. Continue reading

Climate: Wet West in July

Energetic monsoon brings moisture surplus to many areas

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The big wet?

By Summit Voice

FRISCO — An energetic and widespread monsoon weather pattern brought above normal precipitation to much of the West in August, with a bullseye of moisture in southern Idaho, extending across western Wyoming, Montana, northeastern Utah and into northwestern Colorado. Some locations in the region saw up to 800 percent of average precipitation. Continue reading

Climate study explores link between El Niño, the polar vortex and extreme cold outbreaks in Europe

Cold snaps more likely during El Niño winters

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How does El Niño affect weather in Europe?

Staff Report

FRISCO —El Niños don’t just affect anchovy fishermen in Peru and the ski resorts of the Sierra Nevada. The somewhat cyclical variation in equatorial Pacific sea surface temps can shift weather patterns worldwide, including in Europe, which may be more susceptible to extreme cold outbreaks in El Niño years, according to a new study led by a University of Colorado, Boulder researcher.

Other research has hinted at the connection, but the new paper is the first to show that El Niños might be linked with Sudden Stratospheric Warming events, when temperatures high in the atmosphere change radically, affect the polar vortex, a belt of winds that form a boundary between the cold Arctic and the temperate mid-latitudes. Sudden Stratospheric Warming weakens those winds, often leading to outbreaks of bitter cold Arctic air across Europe and possibly the eastern U.S. Continue reading

Study: Ancient El Niño just as strong as today’s

Archaeologists, ocean scientists team up on detailed study of historic climate cycles in Pacific Ocean

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Study offers new clues to past and future El Niños.

Staff Report

FRISCO — Today’s climate models may not do a very good job of predicting changes in the Pacific Ocean El Niño-La Niña cycle, an international team of  scientists said after studying old seashells that display a distinct history of climate variations.

Understanding how El Niño responds to global warming is significant because the undulating rhythm of warming and cooling waters in the equatorial Pacific is a key driver of weather patterns around the world. Some modeling studies have suggested that ancient El Niños may have been weaker than today’s but the new research suggests they were as strong and as frequent as they are now, at least going back about 10,000 years. Continue reading

Climate: What’s up, El Niño?

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A NOAA map shows warmer than average ocean temperatures in red developing off the coast of South American during the past few months, but sea surface temps are also remaining warmer than average across the western Pacific, hampering development of a full-fledged El Niño.

Widespread ocean warmth may hamper development

Staff Report

FRISCO — This year’s brewing El Niño may be dampened by widespread warm sea surface temperatures across the Pacific Ocean, according to weather experts. Specifically, ocean temperatures across the far western Pacific have remained so warm that one of the key ingredients for a full-strength El Niño is missing — a significant difference in temperatures between the western and Eastern Pacific.

But so far this summer, warmer than average temperatures are spread across the Pacific from east to west. Just last week, the National Climatic Data Center announced that the average global temperature for June was the warmest on record, driving in large part by warm oceans. Continue reading

Environment: Emerging El Niño triggers call for fishing restrictions to protect endangered sea turtles

Loggerhead sea turtle. Photo courtesy NOAA/Marco Giuliano.

A loggerhead sea turtle swimming over a coral reef. Photo courtesy NOAA/Marco Giuliano.

Ocean advocates say warming ocean drives sea turtles into floating gillnets

Staff Report

FRISCO — Along with the potential for affecting weather over North America, the emerging El Niño conditions on the Pacific Ocean could pose a  threat to endangered loggerhead sea turtles, conservation advocates say, calling on federal fisheries managers to implement legally required restrictions on gillnet fishing to protect the turtles.

When ocean waters in the eastern Pacific get warmer, the loggerheads tend to move into commercial fishing grounds, where they often die after getting tangled up in nets. When El Niño is occurring or forecasted, the Pacific Loggerhead Conservation Area (California ocean waters east of 120 degrees latitude) is, by law, closed to drift gillnet fishing during June, July and August. Continue reading

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