Flights halted by volcanic ash in Uruguay and Argentina
Written by defenceWeb, Wednesday, 23 November 2011
The Xinhua news agency said that 15 flights in Uruguay, mainly from Iberia, American Airlines, Taca and Aerolineas Argentinas, were cancelled yesterday at the Carrasco International Airport in Montevideo. The Argentine airport authority said more than 20 domestic and international flights were cancelled or delayed at the airports in Buenos Aires.
Uruguay's Chief Aeronautic Meteorologist Laura Vanoli said that a a large ash cloud covered almost all of the country and would remain in the zone on Tuesday and probably part of Wednesday.
"Due to the presence of volcano ashes over the metropolitan area and the decrease of the visibility, delays and cancellations have occurred in the flight schedule," the state-owned air company Aerolineas Argentinas said in a statement.
However by the afternoon air traffic was returning to normal in both Uruguay and Argentina, though with delays due to the postponed flights, AFP reports.
However, Chile's National Geology and Mining Service said that ashes from the Puyehue could affect air travel for months.
Puyehue erupted on June 4 after decades of lying dormant. Flights as far away as Australia were grounded earlier this year because of the ash, which can damage jet engines.
Two weeks after the eruption began in June, the Chilean ash cloud reached South Africa, affecting flights in Cape Town, Port Elizabeth and East London and grounding thousands of travellers. The ash cloud, which travelled right around the world, affected South Africa’s tourism industry. The most recent eruption could have the same effect on South Africa and other countries in the region, but the impact on South Africa is not yet clear.
"There are no signs that the situation is going to change or stabilize in the short term", said Enrique Valdivieso, director of Chile's national service of geology and mining (Sernageomin) in June.
"Fine ash, like we have seen from this latest eruption, could last (in the air) for months. If the ash column continues to measure up to 5.5 miles, it can spread easily. The higher the ash, the more it is blown elsewhere."
Air travel in northern Europe and Britain was hit last May after Iceland's most active volcano at Grimsvotn sent a thick plume of ash and smoke 15.5 miles into the sky.
In April last year, the eruption of another Icelandic volcano, Eyjafjallajokull, led to 100,000 cancelled flights, affecting 10 million people at a cost of US$1.7 billion.
Chilean volcanoes tend to spew more ash than European volcanoes like Iceland's, because the magma is thicker and rises more slowly. As a result more ash is expelled.
"If we take the case of Chile's Lonquimay volcano in 1989, the plume lingered for about two months," said Felipe Aguilera, a volcanologist at Universidad de Atacama.
It was the latest in a series of volcanic eruptions in Chile in recent years. Chile's Chaiten volcano erupted spectacularly in 2008 for the first time in thousands of years, spewing molten rock and a vast cloud of ash that reached the stratosphere.
The Llaima volcano, one of South America's most active, erupted in 2008 and 2009.
Chile's chain of about 2,000 volcanoes is the world's second-largest after Indonesia. Some 50 to 60 are on record as having erupted, and 500 are potentially active.
Top stories this week
- Heavy investment into aerospace and defence by IT and Internet players
- Strong demand for helicopters in emerging markets – report
- Deloitte predicts strong aerospace, weak defence market in 2014
- Angola buying 18 ex-Indian Su-30s - report
- Denel’s aerospace and aviation divisions face future with confidence
- Atlas Elektronik, Thales Deutschland to modernise combat system of F124 frigate
- Aerospace outlook positive, defence negative in 2013 – report
- Defence to shrink, commercial aircraft production to grow in 2013 - report
- Ethiopian Airlines orders additional Boeing 777-200LR
- Lockheed offers high local content Super Hercules to SAAF
Saab selected by Airports Authority of India to deploy A-SMGCS at five airports
by Saab, 20 October 2014
The company will deploy its Advanced-Surface Movement Guidance & Control Systems at five airports in India.
DAFF research, patrol vessel operations under new management for next 12 months
by Nautic Africa, 13 October 2014
Due to supply chain regulations, SAMSA's Special Marine Projects Division will take over from Nautic SA at the end of October.
#Parabot - Africa's largest super-hero robot joins the rhino fight
by Paramount Group, 13 October 2014
Paramount Group and the Ichikowitz Family Foundation's super-hero robot raises awareness of the role of the defence industry in fighting poaching.
Opening of new Mega Aero Training Academy (MATA) practical training centre
by Safomar Aviation, 13 October 2014
The practical training centre is based at OR Tambo International Airport.
Saab awarded contract for civil marine traffic services system in Hong Kong
by Saab, 10 October 2014
The defence and security company was awarded the contract to renew the existing Hong Kong vessel traffic services system.
Enstrom delivers first model 480B-G
by Safomar Aviation, 10 October 2014
The first model 480B-G was delivered today, equipped with the Garmin G1000H glass cockpit.