Low pressure over Arabian sea to intensify into ‘cyclonic storm’ soon, says IMD

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.

Thiruvananthapuram, Jan 27: Kerala Chief Minister Pinarayi Vijayan on Monday urged Prime Minister Narendra Modi to arrange for airlifting the Indians stranded in Wuhan province of China, the epicentre of coronavirus, saying the ground situation there has further worsened.

In a letter to Mr. Modi, he said since the situation in Wuhan was grave, it would be appropriate to operate a special flight to Wuhan or a nearby functional airport and airlift Indian nationals stranded there.

Mr. Vijayan also wanted the Prime Minister to give necessary instructions to the Indian Embassy in China to act pro-actively and provide necessary assistance and reassurance to Indians, including Keralites, stranded in Wuhan and Yichang.

The Chief Minister offered assistance of medical professionals from the State in case of evacuation of the Indians from Wuhan.

Chinese health authorities have announced the death toll due to coronavirus has sharply increased to 80 with 2,744 confirmed cases.

The confirmed cases of pneumonia caused by the novel coronavirus officially described as 2019-nCoV included 461 patients who are in critical condition.

Sitamarhi, Jun 15: Eyewitness accounts from locals in Bihar's Sitamarhi district recount the brutality and intimidation by Nepal's security personnel who on June 12 had resorted to unprovoked firing on a group of people at the international border, which left one Indian dead and two others injured.

"18-20 shots were fired for over one hour and everyone is in shock even now," said Nitish Kumar, a resident of Jankinagar recalling the incident that took place early on Friday morning.

Nepal's Armed Police Force (APF) opened fire at the Lalbandi-Jankinagar border in which three men - Vikesh Yadav, Umesh Ram and Uday Thakur - suffered gunshot injuries. Vikash Yadav succumbed to his injuries on Friday itself.

Another person Lagan Kishore, who was at the border with his family to meet his daughter-in-law, a Nepali national and her family, said he was detained by the APF personnel who dragged him to the other side of the border.

Lagan Kishore said that the Nepali personnel abused and hit him with rifle butts and even abused his son and later resorted to firing.

Several residents of Jankinagar, who spoke to media, termed the incident as "unfortunate and shocking".

Nitish Kumar recalled: "A family was here to meet their in-laws (Nepali nationals). The daughter-in-law was talking to her family while her husband and her father-in-law sat a little distance away. Suddenly I saw Nepali personnel abusing her husband who complained about it to his father. All of a sudden the Nepali forces started thrashing them and then opened fire. They also took the father into custody."

"We were all shocked. I could hear about 18-20 gunshots fired over a period of one hour," Kumar said.

Another local, Ajit Kumar, said he was perplexed with the behaviour of the Nepali Police.

"There used to be no problems earlier. We don't understand what happened to the Nepal Police that day. The firing is unfortunate. If this continues, how will people in the border area live?" he questioned.

Ajit Kumar stated that such an incident has taken place for the first time. "People from here go to work in fields in Nepal and their people come to work in our fields. Such a thing has happened for the first time. About 80 per cent of our people are married to Nepalis," he said.

Many people who live in the adjoining districts of Bihar, which shares over 600 kilometres of border with Nepal, have relatives on either side of the border.

Meanwhile, Nepali police have claimed that Lagan Kishore, who was taken into custody following the firing by APF and handed over to Indian Security Forces at no man's land on June 13, was detained for trying to snatch a weapon from one of their personnel during an altercation.

However, both Kishore and his family have denied the claims and said he was "dragged" across the border and was beaten.

Kishore said that during the firing he had rushed towards the Indian side but Nepalese personnel hit him with rifle butt and took him to Nepal's Sangrampur. He was also asked to confess that he was taken into custody from the Nepali side.

"We ran to return to India when they started firing, but they dragged me from the Indian side, hit me with a rifle butt and took me to Nepal's Sangrampur. They told me to confess that I was brought there from Nepal. I told them you can kill me but I was brought there from India," said Kishore.

Kishore's son also said that Nepali personnel started abusing them and hit him and his father.

Speaking to ANI, Kishore's son said, "We went to meet my brother-in-law. Security personnel started abusing me but I could not understand their language. However, my brother's wife asked them to not abuse. After that, they came to the Indian side and hit me. I told my father about the incident and he confronted them."

"They started beating him and called fellow personnel who started firing and dragged my father from the Indian side, hit him with a rifle butt and took him to Nepal''s Sangrampur," he said.

Relations have become strained between India and Nepal after the latter released a map showing parts of Indian Territory-Lipulekh, Kalapani and Limpiyadhura as its own.