News tagged with tree rings
Duck-billed dinosaurs endured long, dark polar winters
Duck-billed dinosaurs that lived within Arctic latitudes approximately 70 million years ago likely endured long, dark polar winters instead of migrating to more southern latitudes, a recent study by researchers ...
Other Sciences / Archaeology & Fossils
Apr 11, 2012 |
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Solar 'climate change' could cause rougher space weather
(PhysOrg.com) -- Recent research shows that the space age has coincided with a period of unusually high solar activity, called a grand maximum. Isotopes in ice sheets and tree rings tell us that this grand ...
Space & Earth / Space Exploration
Apr 02, 2012 |
4.4 / 5 (9) |
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Tree-ring science takes on the modern age
Whether it's learning how forests respond to environmental change or answering questions about the history of ancient cultures, trees continue to be a solid source of information for many kinds of researchers.
Space & Earth / Earth Sciences
Feb 24, 2012 |
4.5 / 5 (2) |
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Tree rings may underestimate climate response to volcanic eruptions: study
Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because large enough temperature drops lead to greatly shortened or even absent growing seasons, ...
Space & Earth / Earth Sciences
Feb 05, 2012 |
4 / 5 (4) |
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Precipitation variability in Northeast, Southwest linked in 1,000-year analysis
An analysis of precipitation data collected from a lakebed in New York and a Rhode Island estuary has provided a link between the variability of precipitation in the Northeast with that of the Southwest. The results validate ...
Space & Earth / Earth Sciences
Nov 08, 2011 |
3.5 / 5 (4) |
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Southern South American wildfires expected to increase: study
A new University of Colorado Boulder study indicates a major climate oscillation in the Southern Hemisphere that is expected to intensify in the coming decades will likely cause increased wildfire activity ...
Space & Earth / Earth Sciences
Aug 22, 2011 |
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New research sheds light on South Pole dinosaurs
Dog-sized dinosaurs that lived near the South Pole, sometimes in the dark for months at a time, had bone tissue very similar to dinosaurs that lived everywhere on the planet, according to a doctoral candidate at Montana State ...
Other Sciences / Archaeology & Fossils
Aug 05, 2011 |
4.7 / 5 (6) |
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Seeing the wood for the trees: New study shows sheep in tree-ring records
Nibbling by herbivores can have a greater impact on the width of tree rings than climate, new research has found. The study, published this week in the British Ecological Society's journal Functional Ecology, could ...
Jul 27, 2011 |
5 / 5 (2) |
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Tree rings tell a 1,100-year history of El Nino
El Niño and its partner La Niña, the warm and cold phases in the eastern half of the tropical Pacific, play havoc with climate worldwide. Predicting El Niño events more than several months ahead ...
Space & Earth / Earth Sciences
May 06, 2011 |
4.7 / 5 (3) |
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A new research report shows effects of climate change in the Arctic are more extensive than expected
Together with Terry Callaghan, a researcher at the Royal Swedish Academy of Sciences, Margareta is the editor of the two chapters on snow and permafrost.
Space & Earth / Earth Sciences
May 04, 2011 |
4.2 / 5 (6) |
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Rings reveal extensive yearly climate record
A new study of the oldest trees in Mexico provides the first ever detailed, year-by-year look at the climate of Mesoamerica over a thousand-year span. The data, gathered from the annual growth rings in trees, ...
Space & Earth / Earth Sciences
Apr 18, 2011 |
5 / 5 (9) |
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Lord of the tree rings
Trees are outstanding historians. In fact, scientists dating back to Leonardo da Vinci recognized the value of trees. While others had figured out that you could determine the age of a tree by counting its ...
Apr 04, 2011 |
4.2 / 5 (5) |
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Study illustrates shifting boreal forest ecosystem in Alaska
(PhysOrg.com) -- A new study released in the scientific journal Ecology Letters offers one of the first confirmations of a wholesale shift in the boreal forest ecosystem due to climate change.
Mar 02, 2011 |
5 / 5 (2) |
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New study illustrates shifting biomes in Alaska
A new study released today in the EarlyView of Ecology Letters addresses forest productivity trends in Alaska, highlighting a shift in biomes caused by a warming climate. The findings, conducted by scientists at the Woods ...
Feb 21, 2011 |
3 / 5 (2) |
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4,000-year study supports use of prescribed burns in Southern Appalachians
A new study reconstructing thousands of years of fire history in the southern Appalachians supports the use of prescribed fire, or controlled burns, as a tool to reduce the risk of wildfires, restore and maintain forest health ...
Apr 06, 2010 |
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