Earth Sciences news

Carbon and oxygen in tree rings can reveal past climate information

Dec 03, 2009 | 3 / 5 (4) | 1

The analysis of carbon and oxygen isotopes embedded in tree rings may shed new light on past climate events in the Mackenzie Delta region of northern Canada.

NASA's Terra and Aqua satellites see Nida fading, and 97W getting organized

Space & Earth / Earth Sciences

Dec 03, 2009 | not rated yet | 0

NASA's Terra and Aqua satellites flew over Tropical Depression Nida and System 97W in the Western Pacific Ocean and noticed that one is fading while the other is powering up.

Professor foresees rising Antarctic snowmelt

Space & Earth / Earth Sciences

Dec 03, 2009 | 3.5 / 5 (2) | 0

The 30-year record low in Antarctic snowmelt that occurred during the 2008-09 austral summer was likely due to concurrent strong positive phases for two main climate drivers, ENSO (El Niño - Southern Oscillation) and SAM ...

CO2 levels rising in troposphere over rural areas

Space & Earth / Earth Sciences

Dec 03, 2009 | 2.8 / 5 (4) | 5

Spanish researchers have measured CO2 levels for the past three years in the troposphere (lower atmosphere) over a sparsely inhabited rural area near Valladolid. The results, which are the first of their kind ...

Nida getting knocked by winds, and 97W piquing interest

Space & Earth / Earth Sciences

Dec 02, 2009 | not rated yet | 0

Nida is now a tropical storm, and is being knocked around by wind shear in the Western Pacific. Satellite imagery has confirmed Nida's center of circulation is exposed and the storm is losing its circular ...

Strong regional climatic fluctuations in the tropics

Space & Earth / Earth Sciences

Dec 02, 2009 | 4.7 / 5 (3) | 0

Climatic fluctuations close to the equator show a different pattern to climate change in the Arctic and Antarctic. In the tropics distinct 11500 year fluctuations between wet and dry periods can be clearly identified which ...

Typhoon Nida's cloud tops dropping as it zigzags in wind shear

Space & Earth / Earth Sciences

Dec 01, 2009 | 3 / 5 (1) | 0

Nida is battling to keep its typhoon strength in the Western Pacific Ocean as wind shear continues to tear at the storm and weaken it. NASA's CloudSat satellite noticed that Nida's cloud tops are not as high ...

First comprehensive review of the state of Antarctica's climate

Space & Earth / Earth Sciences

Dec 01, 2009 | 3.8 / 5 (12) | 3

The first comprehensive review of the state of Antarctica's climate and its relationship to the global climate system is published this week by the Scientific Committee on Antarctic Research (SCAR). The review - Antarctic ...

Winds drive icebergs away from New Zealand

Space & Earth / Earth Sciences

Dec 01, 2009 | 4 / 5 (2) | 0

(AP) -- Strong westerly winds in the southern Pacific Ocean have driven scores of icebergs originally headed toward New Zealand to the east, away from the country, an oceanographer said Tuesday.

NASA captures Typhoon Nida's clouds from 2 angles

Space & Earth / Earth Sciences

Nov 30, 2009 | not rated yet | 0

NASA satellites capture amazing views of tropical cyclones, and the Aqua and CloudSat satellites captured a top-down look at temperatures in Typhoon Nida's clouds, and an image of what they look like from ...

Super Typhoon Nida to pass east of Iwo To and Chichi Jima

Space & Earth / Earth Sciences

Nov 30, 2009 | not rated yet | 0

Nida is still holding on to Super Typhoon status in the Western Pacific Ocean, and over the weekend, is forecast to pass east of both Iwo To and Chichi Jima islands. Although the center of Nida will remain ...

Venezuela turns to cloud-seeding to battle drought

Space & Earth / Earth Sciences

Nov 29, 2009 | not rated yet | 1

(AP) -- Hugo Chavez says he is starting to "bombard" clouds now that Cuba has provided Venezuela with cloud-seeding help in an effort to produce rain and alleviate the effects of a severe drought.

New radar helps monitor site of century-old tragedy

Space & Earth / Earth Sciences

Nov 27, 2009 | not rated yet | 0

(PhysOrg.com) -- A University of Alberta researcher has turned the site of a southern Alberta rockslide tragedy into the proving ground for new equipment meant to avert such a disaster in the future.

Aqua satellite sees Tropical Storm Bongani approaching Mozambique Channel

Space & Earth / Earth Sciences

Nov 25, 2009 | not rated yet | 0

NASA's Aqua satellite flew over Cyclone Bongani today and provided some important data that have helped forecasters figure out where the storm is headed, and helped them see that it has changed course.

NASA's Aqua satellite sees Nida explode into a category 5 Super typhoon

Space & Earth / Earth Sciences

Nov 25, 2009 | 4 / 5 (3) | 0

Typhoon Nida is in a favorable environment that has enabled it to intensify faster and stronger than previously forecast, and has now exploded into a Super typhoon. NASA's Aqua satellite passed over Nida and ...