News tagged with hemisphere
Hypoxia increases as climate warms
Space & Earth / Earth Sciences
21 hours ago |
4 / 5 (4) |
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A new study of Pacific Ocean sediments off the coast of Chile has found that offshore waters experienced systematic oxygen depletion during the rapid warming of the Antarctic following the last "glacial maximum" period 20,000 ...
NASA's AIM Satellite and Models are Unlocking the Secrets of Mysterious 'Night-Shining' Clouds (w/ Video)
Space & Earth / Earth Sciences
15 hours ago |
not rated yet |
0
(PhysOrg.com) -- NASA's Aeronomy of Ice in the Mesosphere (AIM) satellite has captured five complete polar seasons of noctilucent (NLC) or "night-shining" clouds with an unprecedented horizontal resolution ...
Cassini closes in on the centuries-old mystery of Saturn's moon Iapetus
Space & Earth / Space Exploration
Dec 10, 2009 |
4.5 / 5 (4) |
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Extensive analyses and modeling of Cassini imaging and heat-mapping data have confirmed and extended previous ideas that migrating ice, triggered by infalling reddish dust that darkens and warms the surface, ...
Scientists explain puzzling lake asymmetry on Titan
Space & Earth / Space Exploration
Nov 29, 2009 |
4.4 / 5 (14) |
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Researchers at the California Institute of Technology (Caltech) suggest that the eccentricity of Saturn's orbit around the sun may be responsible for the unusually uneven distribution of methane and ethane ...
Greenhouse gas carbon dioxide ramps up aspen growth
Dec 04, 2009 |
3.5 / 5 (8) |
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The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy.
Cassini Captures Ghostly Dance of Saturn's Northern Lights (w/ Video)
Space & Earth / Space Exploration
Nov 24, 2009 |
4.9 / 5 (10) |
1
(PhysOrg.com) -- In the first video showing the auroras above the northern latitudes of Saturn, Cassini has spotted the tallest known "northern lights" in the solar system, flickering in shape and brightness ...
Big freeze plunged Europe into ice age in months
Space & Earth / Earth Sciences
Nov 30, 2009 |
4 / 5 (17) |
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In the film, 'The Day After Tomorrow' the world enters the icy grip of a new glacial period within the space of just a few weeks. Now new research shows that this scenario may not be so far from the truth after all.
Past regional cold and warm periods linked to natural climate drivers
Space & Earth / Earth Sciences
Nov 26, 2009 |
3.8 / 5 (19) |
31
Intervals of regional warmth and cold in the past are linked to the El Niño phenomenon and the so-called "North Atlantic Oscillation" in the Northern hemisphere's jet stream, according to a team of climate scientists. These ...
Professor foresees rising Antarctic snowmelt
Space & Earth / Earth Sciences
Dec 03, 2009 |
3.5 / 5 (2) |
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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 ...
Study suggests H1N1 virus more dangerous than suspected
Jul 13, 2009 |
4.1 / 5 (20) |
3
(PhysOrg.com) -- A new, highly detailed study of the H1N1 flu virus shows that the pathogen is more virulent than previously thought.
Frost-Covered Phoenix Lander Seen in Winter Images
Space & Earth / Space Exploration
Nov 05, 2009 |
4.6 / 5 (5) |
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(PhysOrg.com) -- Winter images of NASA's Phoenix Lander showing the lander shrouded in dry-ice frost on Mars have been captured with the High Resolution Imaging Science Experiment, or HiRISE camera, aboard ...
Venomous sea snakes play heads or tails with their predators
Aug 06, 2009 |
5 / 5 (5) |
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In a deadly game of heads or tails venomous sea snakes in the Pacific and Indian Oceans deceive their predators into believing they have two heads, claims research published today in Marine Ecology.
Cyclone Anja hits wind shear, weakens drastically
Space & Earth / Earth Sciences
Nov 17, 2009 |
not rated yet |
0
This morning, Cyclone Anja was a powerful Category 4 cyclone on the Saffir-Simpson scale. Wind shear has now giving Anja a strong "punch in the gut" as the storm has weakened to a Category 1 cyclone.
Right-handed chimpanzees provide clues to the origin of human language
Nov 16, 2009 |
2.5 / 5 (2) |
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Most of the linguistic functions in humans are controlled by the left cerebral hemisphere. A study of captive chimpanzees at the Yerkes National Primate Research Center (Atlanta, Georgia), reported in the January 2010 issue ...
Taking a Bite of Antarctic Ice
Space & Earth / Space Exploration
Nov 16, 2009 |
3.8 / 5 (6) |
1
Scientists with NASA’s IceBite project are heading this week for University Valley, a hanging valley perched more than 1600 feet (more than 1 mile) above sea level in Antarctica’s McMurdo Dry Valleys. Their ...
