Scientists to Explore Antarctica with Drone

A team of international scientists heads to Chile's station Bernardo O'Higgins, Antarctica, on Jan 22, 2015. (AP)
A team of international scientists heads to Chile's station Bernardo O'Higgins, Antarctica, on Jan 22, 2015. (AP)
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Scientists to Explore Antarctica with Drone

A team of international scientists heads to Chile's station Bernardo O'Higgins, Antarctica, on Jan 22, 2015. (AP)
A team of international scientists heads to Chile's station Bernardo O'Higgins, Antarctica, on Jan 22, 2015. (AP)

A team of scientists and engineers have landed in Antarctica to test a drone that will help experts forecast the impacts of climate change. According to BBC, the autonomous plane will help map areas of the continent that have been out of bounds to researchers.

It has been put to the test in extreme weather around Wales' highest peaks. Its first experiment will survey the mountains under an ice sheet to predict how quickly the ice could melt and feed into global sea-level rise.

Scientists want to understand Antarctica better, but they are limited by the existing technology. Strong winds, below-freezing temperatures and sudden storms are common. These dangerous conditions, as well as dark winters and the need to transport pilots and large amounts of fuel, put limitations on the use of traditional crewed planes.

The British Antarctic Survey developed the new drone with UK company Windracers to be easily repaired if something goes wrong.

The drone was tested in Llanbedr, Eryri (also called Snowdonia) in north Wales - a stand-in for the difficult weather and terrain of Antarctica.

During a practice run in strong winds with rain lashing the airfield, engineer Rebecca Toomey explained that the drone can fly to remote areas without concerns for pilots' safety during flight trials amidst strong wind and rain.

It can carry 100kg of cargo up to 1,000km. Instruments including radar and cameras are loaded in the back of the drone and on its wings. Its route is programed in and an engineer monitors the flight from a computer.

Rebecca will operate the drone from Rothera base in Antarctica, but eventually the British Antarctic Survey hope to fly it from the UK.

It also uses much less fuel than traditional planes - 10 barrels compared to 200 on one research flight - reducing the environmental impact of scientific research on the planet.



Latest Tests Show Seine Water Quality Was Substandard When Paris Mayor Took a Dip

 Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)
Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)
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Latest Tests Show Seine Water Quality Was Substandard When Paris Mayor Took a Dip

 Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)
Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)

Tests results released Friday showed the water quality in the River Seine was slightly below the standards needed to authorize swimming — just as the Paris Olympics start.

Heavy rain during the opening ceremony revived concerns over whether the long-polluted waterway will be clean enough to host swimming competitions, since water quality is deeply linked with the weather in the French capital.

Paris Mayor Anne Hidalgo took a highly publicized dip last week in a bid to ease fears. The Seine will be used for marathon swimming and triathlon.

Daily water quality tests measure levels of fecal bacteria known as E. coli.

Tests by monitoring group Eau de Paris show that at the Bras Marie, E. coli levels were then above the safe limit of 900 colony-forming units per 100 milliliters determined by European rules on June 17, when the mayor took a dip.

The site reached a value of 985 on the day the mayor swam with Paris 2024 chief Tony Estanguet and the top government official for the Paris region, Marc Guillaume, joined her, along with swimmers from local swimming clubs.

At two other measuring points further downstream, the results were below the threshold.

The statement by Paris City Hall and the prefecture of the Paris region noted that water quality last week was in line with European rules six days out of seven on the site which is to host the Olympic swimming competitions.

It noted that "the flow of the Seine is highly unstable due to regular rainfall episodes and remains more than twice the usual flow in summer," explaining fluctuating test results.

Swimming in the Seine has been banned for over a century. Since 2015, organizers have invested $1.5 billion to prepare the Seine for the Olympics and to ensure Parisians have a cleaner river after the Games. The plan included constructing a giant underground water storage basin in central Paris, renovating sewer infrastructure, and upgrading wastewater treatment plants.