Posts treating: "fjords"
Monday, 25 April 2016
In southern Greenland in summer, rivers have been streaming off the ice sheet, pouring cold fresh water into the fjords. A new study tracks where that meltwater goes—with surprising
West Greenland’s fjords are vastly deeper than rudimentary models have shown, allowing intruding ocean water to badly undercut glacier faces, which will raise sea levels around the world much faster than previously estimated. Those are the findings of a University of California-Irvine-led research team that battled rough waters and an onslaught of icebergs for three summers to map the remote channels for the first
GeoLog-The official blog of the European Geosciences Union [2015-04-06 13:30:41]
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This week’s Imaggeo on Mondays image is brought to you by Fabien Darrouzet, who visited the icy landscapes of Svalbard back in 2012. Whilst the aim of his trip was not to better understand the geology of the landscapes, his eyes were very much focused on goings on up, up in the sky, it didn’t stop him taking this still of the snow covered peaks. This picture was taken in Svalbard (78° lat.) in June 2012. I was there for one week in order to observe the transit of the planet Venus in front [...]
GeoLog-The official blog of the European Geosciences Union [2015-03-30 13:30:52]
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During ice ages landscapes are sculpted by the power of advancing glaciers. From rock scratches, to changing mountains and the formation of corries, cirques and aretes, through to the formation of valleys and fjords, the effects of past glaciations are evident across the northern hemisphere landscape. Perhaps not so familiar, drumlin fields are also vestiges of the erosive power of ancient ice sheets. Glacial deposits tend to be angular and poorly sorted, meaning they come in lots of different [...]
The Vikings lived in Greenland 'till in cooled.
Ten thousand years before, as glac'ers thawed,
Melt water in the North Atlantic pooled,
The Younger Dryas cold snap shocked and awed.
In Norway, glaciers reappeared on high,
Above the fjords where stoic Norse rule lapsed.
Then Carolina icebergs floated by,
As Greenland outlet glaciers collapsed.
Why would cold make this icecap melt, not
Project Background: Changing conditions in Greenland’s northwest glaciers over the last decade have led to a range of questions about water temperature and circulation patterns in the fjords where ocean water meets the glacial
Back in the 1990's and early 2000's I spent a lot of time going to Antarctica. All told, I completed 30 trips to the "ice". And the jumping off point was always on the island of Tierra Del Fuego in either Argentina or Chile. I am quite familiar with these waters and was happy to go on a three day cruise to Cape Horn and Punta Arenas, Chile.Here is a view of the landing beach at Cape Horn.Our ship is called the Australis. Landing on the island only has a 30% success rate. So we were quite jazzed [...]
I won't mention exactly how long it's been since I posted a Where in the West (or the one and only Where in the North), because I don't have the means to look it up right now (I'm writing this without an internet connection). Suffice it to say that it's been quite a while.
The photos below are of snowy, mountainous country with fjords and -- for additional location-enhancing info -- with
As some might have guessed, those "pets" are rather docile, to the point of pining for the fjords.
Shortly after I was stung, jules said she spotted another hornet in the same vicinity. So on Thursday morning, we went down there for a closer look. As soon as we approached and got off the bike, we noticed them whizzing backwards and forwards across the road and into and out of a tree trunk
The Norwegian government wants to build a tunnel linking two fjords that would be large enough to pass 16,000 tonne cargo and passenger ships. The treacherous stretch of waterway has seen 46 accidents and 33 deaths since World War II. The 1.7 km Stad maritime tunnel would cost about 1.6B kroner ($274M USD). [Source: The Courier-Mail via ASCE SmartBrief. Image:
“Scientists from the U.S., U.K. and Australia have used ice-penetrating radar to create the first high-resolution topographic map of [..] some of the largest fjords or ice cut channels on Earth, providing important insights into the history of ice in Antarctica.” Quoted from The University of Texas at Austin press
By Hakim Abdi, LDEO. My first flight on the P3 and the scenery was nothing short of breathtaking. The science mission involved flights in the north over the Steensby glacier that passes through Sherard Osbron Fjord, and Ryder glacier constrained by the Victoria Fjord. In northeast Greenland we overflew the Hagen glacier and the Flade
Southwest Greenland. In among the even older rocks is a huge intrusive igneous complex formed more than a billion years ago. Exhumed by erosion to form the dramatic topography of fjords and glacial terrains and the subject of geological
“Glaciers can help actively growing mountains become higher by protecting them from erosion, according to a University of Arizona-led research team. The finding is contrary to the conventional view of glaciers as powerful agents of erosion that carve deep fjords and move massive amounts of sediment down mountains. Mountains grow when movements of the Earth’s
Following a two day journey involving an impressive four flights (Heathrow to Oslo to Tromsø to Longyearbyen to Ny Alesund) we arrived in what is to be our new home for the next 6 weeks. The scenery had been pretty spectacular even as we left Tromsø, taking us over dramatic mountains and stunning turquoise fjords.
Waters from warmer latitudes — or subtropical waters — are reaching Greenland's glaciers, driving melting and likely triggering an acceleration of ice loss, reports a team of researchers led by Fiamma Straneo, a physical oceanographer from the Woods Hole Oceanographic Institution (WHOI)."This is the first time we've seen waters this warm in any of the fjords in Greenland," says Straneo.
Glaciers in many areas are melting faster and some of them might have an accelerated melt rate caused by increased water temperatures in their associated
In my latest post I mentioned the open access to the Norwegian Journal of Geology. In this post I shall concentrate on a paper in their latest issue (2009 Volume 89 Nr. 1 & 2) - Pockmarks in Spitsbergen fjords.Pockmarks are concave, crater-like features on the seafloor, generally up to several hundreds of meters in diameter and tens of meters in relief. ’Mega pockmarks’ can have diameters of more than 1.5 km and depths exceeding 150 m. The formation of pockmarks is mostly caused by the [...]
The Norwegian Journal of Geology is one out of a growing number of scientific journals making their journal freely available online. They also tell why they do this:“ ... scientific papers are of limited value unless they are available to all interested readers. Our ambition is therefore to ensure the widest possible distribution of our journal.In making the journal digitally available, we make NJG easier to access and handle for our society members and subscribers. By improved availability [...]
Dave Petley has a post about landslides in Norway. Quick clays and steep-sided fjords are responsible for a lot of the landslides