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4 September 2026

CAQM and ISRO collaboration for stubble fire monitoring

This topic involves a specific institutional collaboration (CAQM and ISRO) to address the critical and recurring issue of stubble burning, which is a direct and high-priority theme under environmental pollution in the GS3 syllabus.

1 min read Day 8 of 8 2 questions 1 prelims

Notes

  • The Commission for Air Quality Management (CAQM) is collaborating with ISRO to improve the monitoring of stubble fires in Punjab and Haryana.
  • Current satellite-based fire counts are considered insufficient for accurate assessment due to limitations in sensor resolution and inability to measure straw quantity, moisture, and combustion efficiency.
  • Data indicates a shift in peak farm fire activity from 1:30 p.m. (2020) to 5:00 p.m. (2024), likely to evade detection by polar-orbiting satellites.
  • Farm fires contribute up to 15% of total particulate matter pollution over winter, but this can spike to 44% during specific weeks in October and November.
  • Pollution peaks occur when monsoon withdrawal stalls westerly winds, preventing the dispersal of pollutants from vehicles, industry, and agriculture.
  • CAQM is seeking a new 'ground truthing' protocol from ISRO to move beyond simple fire counts for better estimation of pollution impact.

Part of a longer story

This is day 8 of 8 in Delhi air pollution mitigation and management, which has been running since 2 July 2026. Reading it whole is usually worth more than reading today alone — the exam asks how something developed.

Questions

  1. Discuss the limitations of current satellite-based monitoring systems in tracking agricultural residue burning and the need for enhanced ground-truthing protocols. 150 words
    Attempt this — 150 words in 8 min
    0 / 150 words 8:00
  2. The seasonal spike in air pollution in the National Capital Region is a complex interplay of meteorological conditions and agricultural practices. Examine the role of institutional coordination between bodies like the CAQM and scientific agencies like ISRO in addressing this environmental challenge. 250 words
    Attempt this — 250 words in 11 min
    0 / 250 words 11:00

Prelims

  1. Which of the following factors limits the accuracy of satellite-based monitoring of farm fires as highlighted by the CAQM?

Syllabus

Topics

Sources

250words.in · https://250words.in/daily/2026-09-04/caqm-and-isro-collaboration-for-stubble-fire-monitoring