Science Feeds

Northern wheatears now on remarkable journey

American Geophysical Union - Fri, 08/09/2019 - 8:58am

Birds that spent their summer next to muskoxen are now leaving Alaska to spend winter with zebras.... Wheatears are now gobbling insects in the rocky hills above Wales, Alaska. The birds will soon fly into the moist air just after sunset, maybe tonight, and cross the Bering Strait.

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Friday fold: crumpled green metavolcanics from St. Anthony

American Geophysical Union - Fri, 08/09/2019 - 8:05am

The Friday fold erupted out of a volcano, completing the second part of its two stage cooling history, then later got folded and metamorphosed. It was found atop a high cliff near the northern Newfoundland town of St. Anthony.

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Sols 2489-2491: A Change in the Weather (Observations)

American Geophysical Union - Thu, 08/08/2019 - 8:00pm

Over the weekend, Curiosity successfully dropped off a portion of the Glen Etive drill sample. But for some reason, the sequence was interrupted, so no images of the portion were acquired.

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Ten Years of Icy Data Show the Flow of Heat from the Arctic Seafloor

American Geophysical Union - Thu, 08/08/2019 - 10:00am

Scientists have taken the temperature of a huge expanse of seafloor in the Arctic Ocean. The study is accompanied by the release of a large marine heat flow dataset collected by the USGS from an ice island drifting in the Arctic Ocean between 1963 and 1973. These never-before-published data greatly expand the number of marine heat flow measurements in the high Arctic Ocean.

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The South Tahoma Glacier/Tahoma Creek Outburst Flood & Debris Flow on 5th August 2019

American Geophysical Union - Thu, 08/08/2019 - 3:02am

Mount Rainer debris flow:- On Monday 5th August 2019, an outburst flood and debris flow occurred in four major pulses at Mount Rainier National Park.

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The Benefits of Attending Conferences

American Geophysical Union - Wed, 08/07/2019 - 11:46am

Although young researchers might feel intimidated by conferences and presenting research for the first time, conferences provide a significant amount of professional and personal development, which makes them an extremely valuable experience. Communicating research in a concise and engaging way can be challenging, especially for less experienced researchers. Presenting at a conference allows young researchers to refine their communication skills. Researchers can practice presenting to an audience and receive immediate feedback …

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Drawing Down in Pennsylvania – a mini-podcast series showcasing local efforts to reverse global warming

American Geophysical Union - Wed, 08/07/2019 - 11:07am

A summer science communication REU that produced a mini-podcast series exploring efforts and successes in the state of Pennsylvania to reverse global warming, aligning with the mission of Project Drawdown

The post Drawing Down in Pennsylvania – a mini-podcast series showcasing local efforts to reverse global warming appeared first on AGU Blogosphere.

More intense non-tropical storms causing increased rainfall in Southeast U.S.

American Geophysical Union - Wed, 08/07/2019 - 9:00am

A new study in AGU’s journal Geophysical Research Letters examined the region’s precipitation records from 1895 to 2018. The new research found precipitation in the Southeast during the fall increased by almost 40 percent in the past century due to an increase in average daily rainfall rather than the overall number of storms.

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Deviot, Tasmania: the impact of a slow moving landslide on home owners

American Geophysical Union - Wed, 08/07/2019 - 2:14am

In Deviot, Tasmania a reactivated slow-moving landslide is destroying five properties. The owners are seeking redress through the Tasmanian Upper House.

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Moonquakes tumble boulders, build lunar scarps

American Geophysical Union - Tue, 08/06/2019 - 2:46pm

The Apollo Moon buggies weren't the only things rolling over the Moon's surface in the early 1970s. New research has found that a strong moonquake in 1975 probably sent boulders tumbling down crater walls on our nearest neighbor. 

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How the Pacific Ocean influences long-term drought in the Southwestern U.S.

American Geophysical Union - Tue, 08/06/2019 - 10:00am

New research explores what conditions in the ocean and in the atmosphere prolong droughts in the Southwestern U.S. The answer is complex, according to a study published Aug. 6 in the Journal of Geophysical Research: Atmospheres, a journal of the American Geophysical Union.

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July 2019: a record-breaking landslide month for fatal landslides

American Geophysical Union - Tue, 08/06/2019 - 2:21am

In July 2019 I recorded the highest monthly number of fatal landslides since I started to collect the data in 2012. In total, I recorded 100 fatal landslides

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Sol 2488: Success on the 22nd Drill Hole; Happy Landing Day-On to Year 8!

American Geophysical Union - Mon, 08/05/2019 - 8:00pm

On Sunday morning the team received the message that Curiosity's latest drill hole was successful at 'Glen Etive.' This is the 22nd full-depth drill hole on Mars, and we can celebrate its success on this final day of Earth-year 7 of the mission.

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New study traces Io’s volcanic tides

American Geophysical Union - Mon, 08/05/2019 - 1:59pm

Hundreds of volcanoes pockmark the surface of Io, the third largest of Jupiter’s 78 known moons, and the only body in our solar system other than Earth where widespread volcanism can be observed. A new study finds Io’s most powerful, persistent volcano, Loki Patera, brightens on a similar timescale to slight perturbations in Io’s orbit caused by Jupiter’s other moons, which repeat on an approximately 500-Earth-day cycle.

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Geoengineering versus a volcano

American Geophysical Union - Mon, 08/05/2019 - 1:32pm

Major volcanic eruptions spew ash particles into the atmosphere, which reflect some of the Sun’s radiation back into space and cool the planet. But could this effect be intentionally recreated to fight climate change? A new paper in the AGU journal Geophysical Research Letters investigates.

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Toreva Block landslide models

American Geophysical Union - Mon, 08/05/2019 - 12:06pm

Somewhere on the AGU Landslide blog, I came across a reference to another type of rock strength-controlled, intact landslide I had never heard of–the Toreva Block. Like the Appalachian Valley and Ridge giant landslides, it is possible to replicate Toreva-style movement with contrasting model materials that represent failure-prone shale and much stronger topography-supporting lithologies, like sandstone or basalt.

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E20 – Ballooning on Venus

American Geophysical Union - Mon, 08/05/2019 - 10:17am

Venus, Earth’s nearest planetary neighbor, is a rocky world close in size to our own. In our solar system, it is the planet most like Earth. But Earth and Venus have taken different developmental paths, creating curious contrasts for scientists interested in planetary evolution.

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Introducing students to Drawdown actions and solutions

American Geophysical Union - Mon, 08/05/2019 - 9:04am

Project Drawdown helps students see beyond the "doom and gloom" with climate change impacts and shows them how to take actions that move us towards reversing global warming

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Icelandic glaciologist feels a weighty responsibility

American Geophysical Union - Mon, 08/05/2019 - 9:00am

Icelanders will soon install a plaque they hope people will read, long after those who bolted it to a mountain are dead. Near a withering glacier, the sign reads: Ok (Okjökull) is the first Icelandic glacier to lose its status as a glacier.

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Grandview Surf Beach: a fatal rock topple in California

American Geophysical Union - Mon, 08/05/2019 - 2:15am

On 2nd August 2019 a rock topple on Grandview Surf Beach near San Diego in California killed three women from a single family

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