Tuesday, 28 February 2017

The Oroville dam.... after

Two weeks after the Oroville high water / spillway / emergency spillway problem. The damage to the dam becomes more clear 

Saturday, 25 February 2017

Charles Lyell glacier

How warm has California been lately? Well, look at the bottom image below and see if you can tell it was once a mighty glacier: 140 years on from Charles Lyell's death, the glacier named for him in Yosemite has almost disappeared.


 

from a tweet send by Jamie Woodward

Read more on the citylab website >>>

Wednesday, 22 February 2017

A new continent: Zealandia

Geologists claim to have discovered a new continent to the east of Australia: Zealandia. At 4.9 million square kilometres of land mass, 94 per cent of which is under water, Zealandia would be the world's smallest continent.

In a paper published in the Geological Society of America's Journal, researchers explain that Zealandia measures five million sq km (1.9m sq miles) which is about two thirds of neighbouring Australia.



Monday, 20 February 2017

Friday, 17 February 2017

California watersystem

The Oroville dam is not a water reservoir system on its own. It's a part of a larger water system in California with reservoirs, levees, canals and rivers. a complex system from Oroville to Sacremento.
 


Tuesday, 14 February 2017

Volcano under naples

The Campi Flegrei caldera under the Italian city of Naples shows signs of “reawakening” after almost 500 years of inactivity.  So what's happening underneath Naples ?



According to a study published Tuesday, it is close to nearing a critical pressure point, which could spell disaster for the 500,000 people that reside in the area. The 12km-wide cauldron is actually a collapsed volcano. As such it does not have one obvious central peak, rather it is fuelled by one huge magma chamber. This is precisely what makes Campi Flegrei so dangerous. Italian and French scientists have for the first time identified a threshold beyond which rising magma under the Earth’s surface could trigger the release of fluids and gases at a 10-fold increased rate.


Read more >>>>>

Sunday, 12 February 2017

Monitoring the Iceland Volcanoes

According to geophysicist Páll Einarsson, four of Iceland's volcanoes are showing increased amounts of activity in preparation for another eruption. 

Katla is the most active that it's ever been in four decades. "Katla has been unrestful since this autumn." The other volcanoes showing increased activity are Hekla, Grímsvötn and Bárðarbunga.

Read the full article >>>

Friday, 10 February 2017

Plan for the Oroville dam

The waterlevel in the Oroville lake is getting higher. Watermanagers have made a plan for a emergency spillway. The reservoir, at 884 feet elevation above sea level Thursday, will naturally begin to spill into the emergency spillway channel at elevation 901 feet,” officials said in a statement. “That point may come shortly after midnight Friday.”





Read the full article on KQED news >>>
A 3D infographic from LA Times >>>
More on the US news >>>

Oroville Spillway Damage

The spillway at Oroville Dam in California has been severely damaged.


State water managers hoping they can dump enough water down the badly compromised structure to prevent the state’s second-largest reservoir from pouring over an emergency release point that has never been used before.


Wednesday, 8 February 2017

Rosling: Boat Refugees

A tribute to Hans Rosling from the Gapminder Fondation 

This shows you why the refugees crossing the mediterranean by boat, can't just fly to Europe.
 

Hans Rosling

The amazing 'edutainor' Hans Rosling dies

He was known for lively presentations that used data and animation to explain global development in a compelling way.. In 4 minute videos and by example his  website Gapminder

Hans Rosling’s tells the modern world's story in just four minutes... the best stats you have ever seen : - )
Read the full article on the BBC >>>>

Tuesday, 7 February 2017

Mount Etna prognoses 2017

Etna in Italy had a real quiet 2016. However, it appears that 2017 won’t follow the same path. Since January 23, the summit craters on Etna have been restless and now strombolian explosions have been rocking the South East Crater. In fact, two distinct vapor-and-ash plumes are active on the Sicilian volcano. This is the first sign of magma at the surface at Etna in over eight months (which is a long time for the nearly-constantly restless volcano).


Read the full article on Wired >>>>>

Saturday, 4 February 2017

Boundaries, Borders, and… The Trump Wall?

We have all heard it: “I will build a great wall – and nobody builds walls better than me, believe me – and I’ll build them very inexpensively – I will build a great, great wall on our southern border, and I will make Mexico pay for that wall. Mark my words.” Trump’s words from 2015 are once again making headlines and the proposed wall is forcing society to pose some tough questions. Are walls a knee-jerk protectionist response? How is globalisation implicated? Do walls work?


Read the full article on Geography directons blog >>>

Thursday, 2 February 2017

Trump's way of dealing with mexico

Trump..... made in Mexico ; - ) 



Wednesday, 1 February 2017

Lava Flow on Hawaii pours into sea

Researchers from the USGS’s Hawaiian Volcano Observatory captured dramatic footage showing a ‘firehose’ of lava flowing from the Kilauea Volcano and into the sea. 

The video also captures littoral explosions as the super hot lava makes contact with the cold sea water at the Kamokuna lava tube.



The usgs videofile >>>>>

Erik Klemetti on the Hawaii lava  flow >>>>