Latest News

Why India's toxic farm fire counting approach is challenged

India prepares to count hazardous farm fires by keeping track of the scorched location they leave rather than the present approach of using orbiting satellites to determine live fires.

Here is a look at how India counts farm fires - a significant contributor to extreme contamination in the north - and why its method is being questioned.

WHY ARE FARM FIRES LIT?

Farmers in India light fires, in infraction of laws that bar the practice, to rapidly clear crop waste or stubble left behind after paddy is harvested so that they can plant wheat.

Although the federal government offers aids on harvesting machines that can replace this technique, need has been low due to their high cost or long wait for those looking to rent them.

HOW DOES INDIA DISPLAY FARM FIRES?

Officials say satellites are the only way to keep track of farm fires since they catch a much larger area.

India's area company obtains data from two orbiting NASA satellites that pass over the northern breadbasket states of Punjab and Haryana, to name a few, two times a day - around 10.30 am ( 0500 GMT) and 1.30 pm (0800 GMT).

This is then shown the federal government to count farm fires.

IS THIS APPROACH FOOLPROOF?

NASA satellites just record circumstances of farm fires throughout the minimal period when they are passing over the area, which takes them 90 seconds. They for that reason just capture any blaze noticeable at that time or lit in the previous half hour.

Specialists suspect that farmers have, over time, realise of this monitoring duration and moved the time of burning their crop waste to avert the NASA satellites.

WHY IS IT BEING QUESTIONED NOW?

An advisor to the Supreme Court, which is keeping track of pollution management by authorities in the nationwide capital region, this week said there was an inconsistency in the farm fire data gotten from orbiting and stationary satellites.

Mentioning information provided by a senior scientist at NASA Goddard Area Flight Center, she said that a South Korean fixed satellite had actually recorded farm fires at 4.20 pm (1050. GMT), well after the NASA satellites had actually carried on.

WHAT IS THE ALTERNATIVE?

The court had directed the federal government to acquire. information of farm fires from stationary satellites as an option. however the federal government said this data is sub-optimal.

Rather, India's area firm is working on a system to. count farm fires by studying the scorched area they leave.

(source: Reuters)