Earth ChangesS


Bizarro Earth

The Mysterious Rumble of Thundersnow



NASA atmospheric scientists got an unexpected chance to study a curious phenomenon called "thundersnow" when a recent storm unleashed it right over their heads.

Walt Petersen and Kevin Knupp have traveled far and wide to study winter storms. They never dreamed that the most extraordinary one they'd see - featuring freakish thundersnow, a 50-mile long lightning bolt, and almost a dozen gravity waves -- would erupt in their own back yards. The storm hit Huntsville, Alabama, on the evening of January 9th.

"This incredible storm rolled right over the National Space Science and Technology Center where we work," says Knupp. "What luck!"

Snowstorms usually slip in silently, with soft snowflakes drifting noiselessly to Earth. Yet this Alabama snowstorm swept in with the fanfare of lightning and the growl of thunder.

Eyewitness Steve Coulter described the night's events: "It was as if a wizard was hurling lightning behind a huge white curtain. The flashes, muted inside thick, low hanging clouds, glowed purplish blue, like light through a prism. And then the thunder rumbled deep and low. This was one of the most beautiful things I've ever experienced.'"

Bizarro Earth

NASA Captures Massive Dust Plume Over Mediterranean

As protests continue to rock North Africa, heavy winter winds are also kicking up huge dust storms.

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© Nasa
On Wednesday, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite captured a photo of a massive dust plume over the Mediterranean Sea. The cloud of debris spans hundreds of miles--from the coast of Egypt, slightly west of the Nile River delta, all the way to Crete.

Though the source of the plume is not apparent from the photograph, NASA believes it to be a result of huge dust storms that occurred recently over Egypt and Libya.

Take a look at the dust plume in the natural-color photo (below), and scroll down further to see the storm that may have caused it. Then, look through our slideshow of the world's most severe snowstorms seen from space.

Fish

Tasmania: Spate of Derwent fish deaths

dead squid
© Nikki Davis-JonesTim Strange, of Claremont, with some of the dead squid that have washed up in the area.

Experts have no answers on what has caused the death of thousands of squid in the River Derwent this week.

Dead and dying arrowhead squid have been washed ashore or spotted floating on the water at Austins Ferry and Berriedale since Tuesday.

Locals say they have never seen so many dead fish.

The Environment Protection Authority yesterday confirmed reports of more dead squid further down the river.

Igloo

US: A Snowy Drought In January

Snow Cover
© NASA Earth ObservatoryNASA Earth Observatory image by Robert Simmon, based on data from the MODIS Snow and Sea Ice Global Mapping Project.
January 2011 was marked by a series of crippling snow storms across the United States. By January 12, about 71 percent of the country had snow on the ground, the fifth-largest snow cover extent in the last 45 years. This image, made with data from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite (from the monthly snow cover product), shows the maximum snow cover for the month. The image shows that every state in the contiguous United States, with the exception of Florida, got snow in January.

The image provides a gauge for both snow extent and the length of time snow stayed on the ground. Areas that are white in this image were entirely covered with snow for most of the month. Pale green areas had snow for just part of the month or were only partly snowy, with areas of exposed ground. Dark green areas are places where MODIS did not observe snow during the month. The sensor does not see through clouds, so it does not see snow that is only on the ground on cloudy days.

With all the snow, it would be easy to think that the United States received plenty of winter moisture, but snow is deceptive. It takes about 10 inches of fresh snow to make an inch of liquid water when it melts. The winter storms brought more snow, but less rain to much of the United States, said the National Climatic Data Center. January 2011 was the ninth-driest January in the United States in 117 years. The southern half of the country was particularly hard hit. New Mexico experienced its driest January on record.

Heart - Black

Gulf Coast dolphin death toll rises to nearly 60

dead,dolphin
© AP

The death toll of dolphins found washed ashore along the U.S. Gulf Coast since last month climbed to nearly 60 on Thursday, as puzzled scientists clamored to determine what was killing the marine mammals.

The National Oceanic and Atmospheric Administration declared the alarming cluster of recent dolphin deaths "an unusual mortality event," agency spokeswoman Blair Mase told Reuters.

"Because of this declaration, many resources are expected to be allocated to investigating this phenomenon," she said.

Bizarro Earth

Indonesian mud volcano flow 'to last 26 years'

The world's largest mud volcano, which left 13,000 families homeless, is likely to continue erupting for another 26 years, researchers have estimated.

mud volcano
The mud buried homes, schools and farmland, and has displaced thousands of families
It first erupted back in May 2006, and - at its peak - was spewing 180,000 cubic metres of mud a day, equivalent to 50 Olympic-sized swimming pools.

The volcano, in East Java, Indonesia, has buried homes, schools and farmlands over seven square kilometres.

The findings have been published in the Journal of the Geological Society.

Radar

Aftershock hits New Zealand city

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Hopes are fading of finding any more survivors following the devastating earthquake in New Zealand after a strong aftershock measuring 4.4 on the Richter scale caused problems in the city and suburbs this morning.

Up to 113 are dead and around 200 others are still missing in Christchurch.

One of the missing is a 40-year-old man from Abbeydorney in Co Kerry.

The Irish man was working as an accountant at the PGG Building when it collapsed and had been living in New Zealand with his wife and son.

Reporter Will Hine from Radio New Zealand said it is unlikely any more survivors will be found.

Dozens of foreign language students died when the Canterbury Television building collapsed.

The City's Mayor, Bob Parker, said many countries are suffering together.

Igloo

US: Cold, Snow To Put Icy Grip On Bay Area Starting Thursday Evening

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© San Francisco ChronicleOne to two inches of snow fell in San Francisco on February 5, 1976, and dusting the Marin Headlands
Cold, wet weather will once again put an icy grip on the Bay Area as we head toward this weekend, bringing with it a chance that San Francisco residents could see some snow, forecasters said Wednesday.

Talk began swirling in recent days that snow could drop on San Francisco for the first time in 35 years.

National Weather Service forecaster Bob Benjamin said that while snow would likely fall at elevations lower than last weekend, it was still too soon to know for certain if there would be flurries in the city.

If the coldest predictions materialize, "In some form, people at or near sea level will see snow in the air," Benjamin said.

A southern-moving unstable cold front carrying moisture was expected to coast into the Bay Area come late Thursday, Benjamin said.

The front was expected to sit over the Bay Area and by Sunday morning bring record-breaking cold temperatures, with 20s to lower 30s forecast over the North Bay valleys, upper 20s to lower 30s around most of the San Francisco Bay shoreline southward through the Santa Clara and Salinas valleys. Higher elevation spots were expected to mostly be in the 20s.

Bizarro Earth

Indonesia's Infamous Mud Volcano Could Outlive All of Us

Lusi mud volcano
© n/a
Since it roared to life in May 2006, a mud volcano near Indonesia's coastal city of Sidoarjo has swallowed homes, rice paddies, factories, and roads, killing 15 people, displacing 40,000, and harming the livelihoods of many more. As the ongoing eruption nears its 5th anniversary, observers wonder whether it will ever stop. The answer: Not anytime soon. A new study predicts the volcano will continue spewing significant amounts of mud for another 2 decades. A second study forecasts that it could grind on as long as 87 years.

The mud volcano has inflicted a punishing blow to the region of Java island 700 kilometers east of the capital, Jakarta. Nicknamed Lusi, a contraction of lumpur (Indonesian for mud) and Sidoarjo, the volcano has so far disgorged 144 million cubic meters of mud, some of which now covers an area roughly twice the size of New York City's Central Park. Much of the mud has been diverted to a nearby river, where it has formed a new 83 hectare island and extended a natural delta. Compensation and mitigation have cost at least $767 million, according to Humanitas, a nongovernmental organization in Melbourne, Australia, that is studying the disaster's social impact. That is a fraction of the real economic toll, which is still being tallied.

Lusi may be a harbinger of disasters to come. "Like a volcanic eruption, a mud eruption is just the effect of geological activity, and I'm sure in the future another mud volcano must erupt in this region," says Soffian Hadi Djojopranoto, a geologist with the Sidoarjo Mudflow Mitigation Agency. "We need very serious research to understand this phenomenon."

Bizarro Earth

Bolivia: 50 Dead in Floods, Declares State of Emergency

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At least 50 people have been killed and tens of thousands left homeless after torrential rains hit Bolivia.

Spanish news agency EFE reported on Tuesday that the government has declared a state of emergency after flash floods and landslides swept through the country, caused by heavy rain that has continued since the beginning of the year.

The downpour has caused river levels to rise, leaving some 20 highways underwater.

Bolivia's defense minister promised 20 million US dollars in emergency aid to use for reconstructing the affected areas and help residents in those regions.