Showing posts with label rain. Show all posts
Showing posts with label rain. Show all posts

Friday, January 14, 2011

Brazil flood death toll tops 500

Rescuers are searching through layers of mud for survivors and bodies after heavy rains caused landslides and torrents to slice through three towns near Rio de Janeiro, killing at least 500 people.
Walls of thick, muddy gunge cascaded past apartment blocks in several towns, flowing into single-storey homes and overturning cars as they surged down the hills sweeping along everything in their path.

Freakish storms early Wednesday (local time) in the mountainous area just north of Rio de Janeiro dumped the equivalent of a month's rain in just a few hours, sending mudslides slicing through towns and hamlets, destroying homes, roads and bridges and knocking out telephone and power lines.
Local officials and media in the worst affected towns of Novo Friburgo, Teresopolis and Petropolis put the death toll at 432.
President Dilma Rousseff, clad in black rubber boots, walked the mud-covered cobblestone streets of Novo Friburgo, where 201 deaths were recorded.
The death toll was expected to rise further as rescuers arrived in remote hamlets, many cut off to all but helicopter access.

Tropical rains, common at this time of year, intensified as a cold front moved in, unleashing the tragedy before dawn, while families slept.
"In eight hours... it rained as much as for the entire month," said Paulo Canedo, a hydrologist at the Federal University of Rio de Janeiro.
The deluge "caused avalanches of rocks and soil that carried everything down with them, picking up houses," he said.
As weather forecasters warned of more rain in the hours and days ahead, rescuers aided by desperate residents clawed through rubble and mud looking for survivors or bodies.
GloboNews television said 175 people had died in Teresopolis, while officials in Petropolis counted 39 dead.
Another 17 bodies were discovered Thursday in a village called Sumidouro.
Churches and police stations were turned into makeshift morgues, the smell of decomposing corpses heavy in the warm air. Thousands of survivors took refuge in shelters.
But among the despair were a few triumphs.
The scenes of crumbled towns and the stench of death transformed the Serrana region, a popular historical getaway for wealthy Rio residents seeking cooler temperatures.
The disaster also provided the first big test for Ms Rousseff, who only took power on January 1.
Her government has released hundreds of millions of dollars in initial emergency aid and sent seven tons of medical supplies.
The last major natural disaster in Brazil was in March 1967, when mudslides killed 300 people in a coastal town called Caraguatatuba, Brazilian media said.
By way of comparison, Brazil recorded 473 deaths for all of last year from heavy rains.

Thursday, January 13, 2011

Climate change in world natural disaster in world

Climate Change has likely intensified the monsoon rains that have triggered record floods in Australia’s Queensland state, scientists said on Wednesday, with several months of heavy rain and storms still to come.
But while scientists say a warmer world is predicted to lead to more intense droughts and floods, it wasn’t yet possible to say if climate change would trigger stronger La Nina and El Nino weather patterns that can cause weather chaos across the globe.
“I think people will end up concluding that at least some of the intensity of the monsoon in Queensland can be attributed to climate change,” said Matthew England of the Climate Change Research Centre at the University of New South Wales in Sydney.

The Queensland floods have killed 16 people since the downpour started last month, inundating towns, crippling coal mining and are now swamping the state’s main city of Brisbane.
The rains have been blamed on one of the strongest La Nina patterns ever recorded. La Nina is a cooling of ocean temperatures in the east and central Pacific, which usually leads to more rain over much of Australia, Indonesia and other parts of Southeast Asia.
This is because the phenomena leads to stronger easterly winds in the tropics that pile up warm water in the western Pacific and around Australia. Indonesia said on Wednesday it expected prolonged rains until June.
Weather Switch
The Pacific has historically switched between La Nina phases and El Ninos, which have the opposite impact by triggering droughts in Australia and Southeast Asia.

“The first thing we can say with La Nina and El Nino is it is now happening in a hotter world,” he told Reuters, adding that meant more evaporation from land and oceans, more moisture in the atmosphere and stronger weather patterns.
“So the El Nino droughts would be expected to be exacerbated and also La Nina floods because rainfall would be exacerbated,” he said, though adding it would be some years before any climate change impact on both phenomena might become clear.
He said the current La Nina was different because of the warmest ocean temperatures on record around Australia and record humidity in eastern Australia over the past 12 months.
Prominent US climate scientist Kevin Trenberth said the floods and the intense La Nina were a combination of factors.
He pointed to high ocean temperatures in the Indian Ocean near Indonesia early last year as well as the rapid onset of La Nina after the last El Nino ended in May.

He said a portion, about 0.5C, of the ocean temperatures around northern Australia, which are more than 1.5C above pre-1970 levels, could be attributed to global warming.
“The extra water vapor fuels the monsoon and thus alters the winds and the monsoon itself and so this likely increases the rainfall further,” said Trenberth, head of the Climate Analysis Section at the National Center for Atmospheric Research in        Boulder, Colorado.
“So it is easy to argue that 1 degree Celsius sea surface temperature anomalies give 10 to 15 percent increase in rainfall,” he added.
Some scientists said it was still too soon to draw a definite climate change link to the floods.
“It’s a natural phenomenon. We have no strong reason at the moment for saying this La Nina is any stronger than it would be even without humans,” said Neville Nicholls of Monash University in Melbourne and president of the Australian Meteorological and Oceanographic Society.
But he said global atmospheric warming of about 0.75C over the past half century had to be having some impact.
“It has to be affecting the climate, regionally and globally. It has to be affecting things like La Nina. But can you find a credible argument which says it’s made it worse? I can’t at the moment.”

350 peopel killed in curent flooding

In the mountain towns of Nova Friburgo, Teresopolis and Petropolis, the reported death tolls are at least 168, 152 and 36 respectively, Brazilian media reported
Heavy rain began falling again early on Thursday as rescuers resumed their search and is expected to continue throughout much of the day.
The collapse of electricity and communications systems, combined with the destruction of many roads and bridges, has severely hampered the rescue work.
800 rescuers are conducting searches and the Brazilian navy is sending a field hospital to the area.
Morgues in the affected towns were full, with churches and police stations receiving bodies.
Officials in Brazil's civil defence department have warned there could be hundreds more bodies yet to be recovered in Teresopolis alone, the Globo media organisation reported.
One area of Teresopolis, Campo Grande, remains cut off entirely and is yet to be reached by any rescuers. It is feared 150 people may be buried there.
Sixteen more bodies were found there early on Thursday, but the most dramatic rise was in Nova Friburgo, where 48 more people were reported to have died.
Amid the death and destruction in Nova Friburgo there was one glimmer of hope: a six-month-old baby, reportedly named Nicholas, was found alive after 12 hours trapped in the rubble of a ruined building, reports said.


The heavy rains also killed 13 people in Sao Paulo state on Tuesday, bringing the total death toll in Brazil’s south to at least 270.
Hillsides and river banks in the picturesque Serrana region north of Rio buckled under the equivalent of a month’s rainfall in 24 hours, destroying houses and killing many people early Wednesday, rescue officials said.
Television images showed many houses buried in mud as desperate residents and rescue workers searched for survivors.
“There was no way of telling which house would fall. Rich and poor — everything was destroyed,” domestic worker Fernanda Carvalho was quoted as saying by the Globo network’s website.

The number of victims was expected to rise as rescuers find more bodies and reach more remote areas.

“Rescue teams are still arriving in the areas that have been worst affected,” he said, adding that about 1,000 people had been left homeless. “It’s the biggest catastrophe in the history of the town.”
Thousands Isolated
Brazilian President Dilma Rousseff signed a decree releasing 780 million reais in reconstruction funds for the affected areas. She was due to fly over the region on Thursday.
Thousands of people in the region were isolated by the floodwaters and cut off from power and telephone contact.
The downpour caused at least one river to burst its banks, submerging cars and destroying houses in Teresopolis, television images showed.
Rio state Governor Sergio Cabral said in a statement he had asked the Navy for aircraft to take rescue crews and equipment to the region, which was partially cut off from Rio by road.

Buses and trucks were shown stranded on streets with floodwaters reaching up to their windows.