Εμφάνιση αναρτήσεων με ετικέτα Atlantic. Εμφάνιση όλων των αναρτήσεων
Εμφάνιση αναρτήσεων με ετικέτα Atlantic. Εμφάνιση όλων των αναρτήσεων

Τετάρτη, Δεκεμβρίου 10, 2014

UK braced for 'weather bomb'

 The UK is preparing to be hit by a "weather bomb" with freezing winds of up to 130 kilometers an hour and giant waves causing disruption to travel and power supplies.

The Met Office issued alerts on Wednesday as the deep, low-pressure system headed for the country.

Ferry and rail journeys were cancelled in parts of Scotland due to high winds and large waves hitting the coastline while schools in the Highlands and Western Isles were shut down.

In the Western Isles, 17,000 homes suffered a power cut as lightning struck electricity facilities early on Wednesday morning.

Storm warnings were also issued for Thursday across Britain by weather forecasters, with travelers being warned they would face major disruption.

- Freezing winds

Several flood warnings were issued across Scotland

Amber "be prepared" alerts were issued by the Met Office for western Scotland, the Highlands, Northern Ireland, Orkney and Shetland and Strathclyde regions.

Yellow "be aware" weather warnings were applied to England's South East, South West, North East, North West, Yorkshire and Humber and northern Wales.

Referred to by meteorologists as a " weather bomb", deep, low-pressureweather systems known as cyclogenisis are known for their severe effects wrought by freezing, strong winds.


Πέμπτη, Οκτωβρίου 23, 2014

Mediterranean, North Atlantic prepares for UN-backed tsunami warning system test -- (Simulations will be carried out between 28 and 30 October)

UN, 23 October 2014 – Some 20 nations with coastlines on the North Atlantic, and Mediterranean and Black Seas are set to participate in a United Nations-supervised tsunami warning exercise to improve their ability to respond to an alert and enhance regional coordination in the event of a disaster.

In a press statement released today, the UN Educational, Scientific and Cultural Organization (UNESCO) – the body coordinating the warning test since its first implementation in 2005 – reported that four tsunami simulations will be carried out between 28 and 30 October in an effort to assess the overall reactivity of countries participating in the Tsunami Early Warning and Mitigation System for the North-eastern Atlantic, the Mediterranean and connected seas (NEAMTWS).

Although tsunamis are not as frequent an occurrence in this area of the globe as they are in the Pacific Ocean, the shores of the Mediterranean and North Atlantic are densely populated prompting concern that tsunami shockwaves could strike and cause widespread damage and fatalities. In 1755, for instance, a tsunami caused by an earthquake in the Azores-Gibraltar Fault Zone destroyed Lisbon, the capital of Portugal. 

Another devastating tsunami swept over Messina, Italy in 1908, claiming tens of thousands of lives. And, more recently, in 2003, an earthquake in Algeria set off a tsunami that struck the shores of Spain's Balearic Islands and the southern coast of France. 

UNESCO noted that due to the short distances they travel in small bodies of water such as the Mediterranean, tsunami occurrences there strike shores with “great speed.”
According to the UN body, the upcoming exercise, named NEAMWave14, is based on a scenario in which four earthquakes unleash two tsunami events in the Mediterranean, one in the Atlantic Ocean, and one in the Black Sea. 

The Kandilli Observatory and Earthquake Research Institute in Turkey, the National Tsunami Alert Centre in France, the National Observatory of Athens in Greece and the Portuguese Sea and Atmosphere Institute, will send out the alerts, kick-starting the exercise, which set to involve a wide range of countries, including Croatia, Cyprus, Egypt, Finland, France, Greece, Ireland, Israel, Italy, Lebanon, Malta, Monaco, Morocco, Portugal, Romania, Russia, Spain, Sweden, Turkey, and the United Kingdom. 

“The exercise will be an opportunity to test the efficiency of the communication systems in charge of transmitting tsunami alerts and, in some countries, to ensure that the authorities in charge of public safety are prepared to face such a threat,” UNESCO explained in its press release. 

NEAMTWS is one of four regional systems which are coordinated by UNESCO's Intergovernmental Oceanographic Commission (IOC) globally. Similar systems already exist for the Pacific and Indian oceans and for the Caribbean.

Πέμπτη, Αυγούστου 14, 2014

Panama Canal Turns 100 Amid Growing Pains, Competition

The Panama Canal turns 100 this week. Officially opened in 1914, the 77-kilometer channel joins the Atlantic and Pacific Ocean at the isthmus of Panama.  It made the world smaller, creating a shortcut for cargo ships that ply their trade from east and west.  But 100 years later the canal is straining from the demands of expanding global trade.  It may also be facing some serious competition as it navigates the next 100 years.
Taking over 30 years to build, tens of thousands of workers - and more than 27 million kilograms of dynamite - it is considered one of the biggest engineering feats of the 20th century.  

"The Panama Canal is one of those phenomenal moments in history.  A terrific example of engineering and technological strength of the United States, and really the coming of age of the United States as a global power," said University of Maryland Professor Julie Greene, author of the book "Canal Builders."
  • But the work exacted a heavy toll.  By the time the first ship crossed the canal, nearly 26,000 workers had died, some from accidents, many from malaria.
But it also changed international commerce forever, especially in the U.S., says George Washington University professor, Noel Maurer.
“Because it enabled for the first time oil from California and lumber from the Pacific Northwest, but it was really the Californian oil that was driving the boat, to be profitably exported from California to the rest of the United States, and that had huge economic benefits for the United States," Maurer said.
Today more than four percent of the world's commerce passes through the canal - some 14,000 ships per year. But the canal's locks are now too small for much of the world's container fleet and the largest oil tankers.
Transportation expert Rodney McFadden says bigger ships can be more efficient and profitable.

“They carry more cargo for about the same amount of money per mile.  They are much easier on the environment," he said. "And they increase trade."

A Hong Kong company is backing a $40 billion plan to dig an alternate route through Nicaragua.  If successful, it could pose a serious challenge to the canal.  
But critics say the project is redundant and impractical, especially when the Panama canal is in the midst of a $5 billion expansion.  Once complete, the new locks will accomodate ships the length of the Empire State building and as wide as three basketball courts.
Autodesk, the New Hampshire-based company that created the software for the project, is thrilled.  Not only has the expansion created over 250,000 jobs - once finished - it will create thousands more around the world, says AutoDesk spokesman Paul Sullivan.
"The ripple effect here is interesting because once this canal is completed and these ships are able to transit the canal,  you’re going to see a lot  more cities around the world competing for improving their ports so they can support those larger ships," he said.
Of the approximately 160 ports in the U.S., only about 15 can accommodate the larger supertankers that will pass through the expanded canal.  By early 2016, experts say this grand canal will be able to handle 97 percent of the world's container ships - doubling the canal's capacity and ensuring it remains a marvel of engineering a hundred years from now.
Mil Arcega 

Πέμπτη, Ιουλίου 03, 2014

Storm "Arthur" to turn into hurricane by Thursday (Hatteras Island in North Carolina evacuation)

US authorities announced the evacuation of residents of Hatteras Island in North Carolina because of the approaching tropical storm "Arthur." This was announced today that the regional emergency service. Start of the evacuation of residents and visitors of the island is scheduled for 5:00 Thursday local time (13:00 MSK). Gusts of wind, rough seas and flooding of the highway connecting the island to the mainland are expected in the region.

"All residents and visitors of the island are advised to leave it as soon as possible during the day," it says in the message.

Earlier storm alert was issued in the state. According to experts from the National Centre for Monitoring hurricanes in Miami, "Arthur" continues to gain strength and will turn into a hurricane on Thursday.

For now it is unclear where exactly it would hit the land, but scientists believe that it might happen right next to Cape Hatteras.

East Coast residents fear that "Arthur" can ruin their plans to celebrate on Friday one of the major US national holidays, Independence Day. Americans often spend this day outdoors, having picnics with friends. In many cities, including Washington and New York, colorful fireworks are usually taking place. This year heavy rains and strong winds might cancel these plans.

The hurricane season in Atlantic usually lasts from June 1 to November 30. It is expected that this year it will not be very active. According to the meteorologists’ forecasts, from 8 to 13, tropical storms will be started over the Atlantic. About three or six of them will turn into hurricanes, and one or two will grow up to the third category of danger according to the Saffir-Simpson scale.

Atmospheric phenomenon is classified as a storm and gets its own name, if the wind speed reaches its epicenter at 63 kilometers per hour. Storm becomes a hurricane when wind speed reaches 118 km per hour.


Τετάρτη, Φεβρουαρίου 26, 2014

21.000 oiseaux morts : une hécatombe historique sur le littoral Atlantique

VIDÉO - Épuisés et dénutris après les tempêtes de début d'année, des dizaines de milliers d'oiseaux marins sont venus s'échouer sur les plages de l'Atlantique. Un appel aux bénévoles a été lancé pour recenser les cadavres et sauver les bêtes toujours en vie.

C'est une bilan historique. 21.000 cadavres d'oiseaux ont été recensés sur le littoral Atlantique depuis fin janvier. Un chiffre qui devrait s'alourdir puisque des milliers d'autres dépouilles ont été observées flottant au large. Ce phénomène rarissime est en lien direct avec les tempêtes qui se sont succédées sur la côte Atlantique depuis le mois de décembre. «Jusqu'en 1900, on n'a aucune trace» d'un échouage aussi massif, explique Nicolas Gendre, ornithologue à la ligue de protection des oiseaux (LPO). «Après les tempêtes, on trouve toujours quelques cadavres d'oiseaux» mais jamais autant qu'aujourd'hui, précise-t-il. Aujourd'hui, des interrogations subsistent encore pour expliquer un phénomène d'une telle ampleur. 

Parmi les espèces les plus touchées: le Macareux moine avec plus de 12.000 individus morts, le Guillemot de troïl et, dans une moindre mesure, le Pingouin torda. 2800 oiseaux marins ont quant à eux été secourus et placés dans des centres pour être soignés. Selon Nicolas Gendre, les oiseaux marins ont «essentiellement souffert d'un manque de nourriture». Les tempêtes auraient déplacé les oiseaux vers des zones moins riches en nourriture. L'ornithologue explique que la forte houle a demandé beaucoup d'énergie aux oiseaux qui doivent se maintenir à la surface pour survivre. Sans nourriture, ils se sont épuisés rapidement. L'association Hegalaldia expliquait récemment au Figaro que beaucoup oiseaux mouraient d'hypothermie après s'être échoués. «L'eau de mer se glisse entre leurs plumes et ils ne parviennent plus à maintenir leur température corporelle assez haute».
Des traces de mazout ont également été observées sur certains individus échoués. Par temps de tempête, de nombreux bateaux sortent en mer pour dégazer. La LPO a lancé mercredi un appel d'urgence aux bénévoles afin de recenser les bêtes échouées. La ligue demande aux bénévoles de marquer d'une ficelle à la patte les cadavres d'oiseaux, le tout munis d'une paire de gants jetables. Les opérations devraient se dérouler les deux premiers week-end de mars.

Τρίτη, Ιανουαρίου 28, 2014

Una especie invasora destruye hasta el 95% de la biodiversidad en el Atlántico

Los peces leones en menos de 35 años invadieron el área oeste del Atlántico, superior al territorio de EEUU, suplantando a otros predadores y destruyendo hasta el 95% de las especies, informó la Universidad de Oregon.
“El hábitat de los peces leones en el Atlántico que llegaron a la zona en los años 80 del siglo XX supera el territorio de EEUU. Estos peces agresivos con radios venenosos en las aletas que no tienen enemigos naturales en el Atlántico devoran todos los animales más pequeños: otros peces, gambas, cangrejos y pulpos. Además, pueden pasarse periodos prolongados sin comer”, dice el informe.

Los investigadores de la Universidad de Oregon y otros centros científicos realizaron estudios durante 18 meses cerca de las islas Bahamas. Los datos recopilados muestran que la disminución de la población de los peces leones de entre el 75 y el 95% lleva a un aumento de entre el 50 y el 70% de las especies autóctonas de los arrecifes.
“Significa que al crear zonas de seguridad o limitando el número de los peces leones en algunos arrecifes podremos restablecer las especies autóctonas”, precisó la ecóloga Stephanie Green.
Los peces leones provienen de los océanos Pacífico e Índico y el mar Rojo.


Παρασκευή, Απριλίου 05, 2013

Marvelous Amazon River....The Pororoca Phenomenon (2VIDEO)

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The Amazon river's volume of water runoff makes up 20 percent of the world’s total. Let’s take a look now at the source of this imposing rivers and its impressive natural beauty.
The Amazon River originates in the Andes Mountain in south Peru. It travels 6-thousand-nine-hundred-and-ninety-two-point-six kilometers before feeding into the Atlantic Ocean. It passes through Ecuador, Columbia and Venezuela on its way to the sea. The Amazon’s river basin covers an area of more than seven million square kilometers. Its water yield is one ninth of the world’s total fresh water.
About 6600 billion square kilometers of water runs into the Atlantic. It is called ’the king of rivers’. The longest stretch of the Amazon is to be found in Brazil, and the people there are very proud of it. A clear boundary is formed at the place where the Amazon river meets the Rio Negro River. This boundary is about seven kilometers long.

It’s romantically called the "marriage of the rivers". After this "marriage," the Amazon then flows into the Atlantic. At the beginning of 15th century, Europeans started to development stretches along the Amazon river. The Amazon got its name from Spanish explorers. The indigenous Indian female warriors were so courageous that the Europeans named them Amazon warriors, after the Amazons of ancient Greek mythology. And this is where the river derives its name. 

Amazon: World´s second longest river
The Amazon River in South America is the second longest river in the world. It is by far the largest by water flow with an average flow greater than the next seven largest rivers combined. Full story>>

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«Παριστάνετε τα "καλά παιδιά" ελπίζοντας στη στήριξη του διεθνή παράγοντα για να παραμείνετε στην εξουσία», ήταν η κατηγορία πο...