Fog disrupts over 100 flights in New Delhi

December 25, 2012

fog

New Delhi, December 25: Dense fog continue to wreak havoc on the operations at the Indira Gandhi International Airport here for the third consecutive day and led to delay of over 100 flights, diversion of seven and cancellation of 10 others.

Schedules of over 100 flights were badly affected after dense fog enveloped the airport late last night and early this morning.

The flights were delayed from half an hour to five hours and some of them had to be cancelled, causing inconvenience to the passengers, airport officials said.

Fog started to descend at the airport around 10 PM yesterday but the runway visibility was fine and flight operations were normal.

But the situation started to deteriorate around 11.21 PM when visibility dropped to 50 metres on the third runway (29/11). However, the visibility was around 800 metres on the main runway (28/10) and, therefore, flight operations went on unhindered on it, they said.

Fog became more dense around 12.30 AM, when the visibility on the main runway also dropped to 50 metres while that on the third runway was below 50 metres, which brought the flight operations to a standstill.

A total of seven (six domestic and one international) flights were diverted to nearby airports like Jaipur, Ahmedabad and others, the officials said. The visibility started to increase after 1.30 AM on the main runway and flights began taking off as and when the conditions were right, they said, adding the flights arriving here were using instrument landing system (ILS).

The visibility at one end of the third runway remained zero till almost 5.30 AM.

A total of 138 domestic and international flights arrived assisted by various category of ILS. 69 flights with CAT-I (when visibility is upto 550 m), 19 flights with CAT-II (when visibility was between 550 and 300 me), 30 flights with CAT-IIIA (when visibility was between 300 and 200 m) and 20 flights with CAT-IIIB (visibility between 200 and 50 m), an airport official said.

Yesterday around 140 flights were affected due to dense fog.

MeT department has predicted that the runway visibility is likely reduce to 500 metres in shallow fog by 11.30 PM and it may further reduce to below 200 metres in dense fog from 3.30 AM tomorrow.

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Agencies
February 27,2020

New Delhi, Feb 27: The US Commission on International Religious Freedom (USCIRF) has said that the Delhi violence in which over 30 people were killed, was specifically targeted against the Muslims.

Expressing "grave concern over the ongoing violence taking place in Delhi", the USCIRF in a statement said that as President Donald Trump's inaugural visit to India winds down, North-East Delhi has been rocked by deadly rioting, with reports of violence and mobs specifically targeting Muslims.

"These incidents are even more concerning in the context of efforts within India to target and potentially disenfranchise Muslims across the country, in clear violation of international human rights standards," USCIRF Commissioner Anurima Bhargava said.

"According to reports, several mosques have also been set alight or vandalized. Many Muslim residents have been forced to flee the area. This unrest comes in the wake of widespread protests against the Citizenship (Amendment) Act following its passage in December 2019.

"The brutal and unchecked violence growing across Delhi cannot continue," Bhargava said adding that the Indian government must take swift action to ensure the safety of all of its citizens.

"Instead, reports are mounting that the Delhi police have not intervened in violent attacks against Muslims, and the government is failing in its duty to protect its citizens."

USCIRF Chair Tony Perkins said the ongoing violence in Delhi and the reported "attacks against Muslims, their homes and shops, and their houses of worship are greatly disturbing".

One of the essential duties of any responsible government, he said, is to provide protection and physical security for its citizens, regardless of faith.

"We urge the Indian government to take serious efforts to protect Muslims and others targeted by mob violence."

In its annual report last year, the USCIRF classified India as a "Tier 2" country for engaging in or tolerating religious freedom violations that meet at least one of the elements of the "systematic, ongoing, egregious standard for designations as a "country of particular concern (CPC)", under the International Religious Freedom Act.

The ongoing violence in North-East Delhi erupted after clashes between pro and anti-CAA protesters on Sunday.

Besides the casualties, over 200 others have been injured in the deadliest violence in the national capital in decades.

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News Network
May 25,2020

New Delhi, May 25: Mahindra Group Chairman Anand Mahindra on Monday said lockdown extensions are not just economically disastrous but also create another medical crisis.

While acknowledging that choices are not easy for policymakers, he said a lockdown extension will not help.

"Lockdown extensions aren't just economically disastrous, as I had tweeted earlier, but also create another medical crisis," Mahindra said in a tweet.

He was referring to an article that highlighted "the dangerous psychological effects of lockdowns & the huge risk of neglecting non-COVID patients".

Mahindra, who had earlier proposed a comprehensive lifting after 49 days of lockdown, further said, "The choices aren't easy for policy makers but a lockdown extension won't help".

He said, "The numbers (coronavirus cases) will continue to rise & the focus must be on rapid expansion of field hospital beds with oxygen lines".

He further said, "The army has enormous expertise in this".

On March 22, before the government announced nationwide lockdown, Mahindra had proposed such a move expressing concerns over reports that India was likely to have already reached stage 3 of coronavirus transmission.

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News Network
April 23,2020

Washington, Apr 23: Air pollution over northern India has plummeted to a 20-year-low for this time of the year, according to satellite data published by US space agency National Aeronautics and Space Administration (NASA).
The US space agency's satellite sensors observed aerosol levels at a 20-year low post the countrywide lockdown, implemented to slow the spread of the novel coronavirus.

"We knew we would see changes in atmospheric composition in many places during the lockdown," said Pawan Gupta, a Universities Space Research Association (USRA) scientist at NASA''s Marshall Space Flight Center. "But I have never seen aerosol values so low in the Indo-Gangetic Plain at this time of year," added Mr Gupta.

Acting Assistant Secretary of State for South and Central Asia Alice G Wells tweeted, "These images from NASA were taken each spring starting in 2016 and show a 20-year low in airborne particle levels over India. When India and the world are ready to work and travel again, let's not forget that collaborative action can result in cleaner air."

The data published with maps show aerosol optical depth (AOD) in 2020 compared to the average for 2016-2019. Aerosol optical depth is a measure of how light is absorbed or reflected by airborne particles as it travels through the atmosphere.

If aerosols are concentrated near the surface, an optical depth of 1 or above indicates very hazy conditions. An optical depth, or thickness, of less than 0.1 over the entire atmospheric vertical column is considered "clean." The data were retrieved by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite.

In the first few days of the lockdown, it was difficult to observe a change in the pollution signature. "We saw an aerosol decrease in the first week of the shutdown, but that was due to a combination of rain and the lockdown," said Mr Gupta.

Around March 27, heavy rain poured over vast areas of northern India and helped clear the air of aerosols. Aerosol concentrations usually increase again after such heavy precipitation.

"After the rainfall, I was really impressed that aerosol levels did not go up and return to normal. We saw a gradual decrease and things have been staying at the level we might expect without anthropogenic emissions," Mr Gupta said.

On March 25, the Indian government placed its 1.3 billion citizens under a strict lockdown to reduce the spread of COVID-19. The countrywide mandate decreased activity at factories and severely reduced car, bus, truck and airplane traffic. Every year, aerosols from anthropogenic (human-made) sources contribute to unhealthy levels of air pollution in many Indian cities.

Aerosols are tiny solid and liquid particles suspended in the air that reduce visibility and can damage the human lungs and heart.

In southern India though, the story is a little hazier. Satellite data show aerosol levels have not yet decreased to the same extent. In fact, levels seem to be slightly higher than in the past four years. The reasons are unclear but could be related to recent weather patterns, agricultural fires, winds or other factors.

"This a model scientific experiment," Robert Levy, program leader for NASA's MODIS aerosol products, said about the lockdown and its effects on pollution.

"We have a unique opportunity to learn how the atmosphere reacts to sharp and sudden reductions in emissions from certain sectors. This can help us separate how natural and human sources of aerosols affect the atmosphere," Mr Levy added.

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