. Earth Science News .

Australia to become hotter, drier: climate report
by Staff Writers
Sydney (AFP) March 14, 2012

New radar will give better storm warnings
Fort Worth, Texas (UPI) Mar 14, 2012 - Weather radar technology called "livesaving," that provides faster and more precise storm detection, is set to be tested in Texas, officials say.

The near-ground radar system is intended to map weather hazards down to street level when tornadoes, high winds or flash floods threaten. The system gets its first urban test in Dallas-Fort this spring.

Near-ground radar will provide faster scans, higher-resolution images and multiple overlapping views of storm cells, officials said.

"What we're excited about is that the radar data will help us better detect damaging winds and small circulations of brief tornadoes." Bill Bunting, chief meteorologist for the Fort Worth office of the National Weather Service, told the Fort Worth Star-Telegram.

"The other thing that it does very, very well is estimates of rainfall," he said. "So we can use that to issue more precise flash flood warnings."

Four of the radar units will be installed, in Fort Worth, Addison, the University of North Texas and the University of Texas at Arlington.

Dallas-Fort Worth's 6.5 million people and volatile weather make it an excellent site for testing the new system, officials said.

"This is absolutely lifesaving technology," Molly Thoerner, director of emergency preparedness for the North Central Texas Council of Governments, said.

Australia's climate is warming at an alarming rate and is set to become drier despite recent record floods, scientists said Wednesday in a report that warns of increased drought and fiercer storms.

The country has seen annual average daily temperatures rise by 0.9 degrees Celsius since 1911, with each decade since the 1950s warmer than the last, the report by government science body CSIRO and the Bureau of Meteorology said.

The national climate snapshot found that temperatures will jump again -- by between 1.0 and 5.0 degrees Celsius by 2070 -- if global greenhouse emissions remain within the range of expectations.

"Global changes of this magnitude happen very rarely. They happen when asteroids strike, they happen when there's planetary volcanic activity," said Karl Braganza, the head of climate monitoring at the Bureau of Meteorology.

"They're happening now because we're digging up fossil fuels and basically burning them all. And we're doing that very, very rapidly," he told ABC Radio.

Australia is known for its droughts, cyclones, bushfires and floods and the State of the Climate 2012 found that while a spike in the frequency of droughts was expected in the south, there was also likely to be an increase in the intensity of rainfall events -- such as the Queensland floods.

Eastern Australia faced huge floods in late 2010 and early 2011, which swamped an area as large as France and Germany combined, destroying farms and coal mines and claiming more than 30 lives.

The inundations were caused by La Nina events, which brought the highest two-year average rainfall total on record in 2010 and 2011 -- and Australia's coolest years since 2001.

But the report said they did not alter the overall picture of warming.

"The warming trends observed around Australia are consistent with global-scale warming that has been measured during recent decades," it said.

The report said average temperatures in Australia are projected to rise by 0.6-1.5 degrees Celsius by 2030 when compared with the climate of 1980 to 1999.

It added it was clear that increasing greenhouse gas concentrations -- which reached a new high in 2011 -- would result in "significant further global warming".

"Unless greenhouse gas emissions decrease, we expect to see the temperature of the atmosphere and the oceans continue to warm and sea levels continue to rise at current or even higher rates than reported here," it said.

Related Links
Climate Science News - Modeling, Mitigation Adaptation

Get Our Free Newsletters Via Email
Buy Advertising Editorial Enquiries

Coming high water may affect 4M Americans
Princeton, N.J. (UPI) Mar 14, 2012 - Rising seas in the next century could threaten up to 4 million Americans living in a combined area larger than the state of Maryland, researchers say.

A study published in the journal Environmental Research Letters reports more than 12,000 square miles of land in the United States lies just 3 feet above the high tide line.

Within this area are 2.1 million housing units where 3.9 million people live, the researchers said.

With a predicted sea level rise of 3 feet or more by the end of the century, the U.S. government's currently designated flood zones should not be considered stable, they said.

"The sea level rise taking place right now is quickly making extreme coastal floods more common, increasing risk for millions of people where they live and work," researcher Ben Strauss of the organization Climate Central said.

"Sea level rise makes every single coastal storm flood higher. With so many communities concentrated on U.S. coasts, the odds for major damage get bigger every year."

The findings suggest there are significant exposures to sea level rise impacts on every coast, the researchers said.

A study by researchers at Climate Central and the University of Arizona found areas surrounding the Gulf of Mexico to be the most vulnerable, while in terms of population Florida is the most vulnerable, closely followed by Louisiana, California, New York and New Jersey.


. Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Asia climate disasters displace 42 million: ADB
Bangkok (AFP) March 13, 2012
Climate-related disasters have displaced more than 42 million people in Asia over the past two years, the Asian Development Bank said Tuesday in a report calling for swift action to avert future crises. "Asia and the Pacific is the global area most prone to natural disasters, both in terms of the absolute number of disasters and of populations affected," said the report launched in Bangkok, ... read more

Japan's nuclear disaster: a timeline

Japan strives to win back tourists

Meltdown intel emerges ahead of Japan anniversary

Nothing stirs in Japan's nuclear ghost town

AU Optronics guilty in display screen price-fixing case

China prepares rare earths defense

Lockheed Martin Space Fence Radar Prototype Tracking Orbiting Objects

Lost smartphones mined by finders: Symantec

Mauritius, Seychelles to jointly manage Indian Ocean shelf

Oceans Acidifying Faster today Than in Past 300 Million Years

Small is good in quest to resolve water crisis

Israel says it backs Gaza Strip desalination plant

China to conduct Arctic expedition

S. Korean, Russian scientists bid to clone mammoth

NASA Finds Thickest Parts of Arctic Ice Cap Melting Faster

Greenland icesheet more vulnerable than thought to warming

Commonly used herbicides seen as threat to endangered butterflies

Auchan supermarkets reports profit rise on action in China

Myanmar soldiers shot dead China farmer: Beijing

World breakthrough on salt-tolerant wheat

Tropical Storm Irina kills three in Mozambique:official

Greek volcanic island shows activity

Small tsunami hits Japan after 6.9 quake

Effects of flooding on Cairo

Bloodhounds deployed to fight elephant poaching in DR Congo

AU troops to replace Ethopian forces in key Somali cities

Former Ugandan child soldier backs viral video

Mali rebels strike amid post-Libya anarchy

Knowledge gap widens gulf between South Asian nations

Human-like fossils in China caves puzzle scientists

First Evidence of Hunting by Prehistoric Ohioans

Lockheed Martin and ZyGEM To Offer Rapid DNA Analysis Platform for Human Identity Testing

Memory Foam Mattress Review

Newsletters :: SpaceDaily Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


The content herein, unless otherwise known to be public domain, are Copyright 1995-2012 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement