MES | Wind Pattern and Ventilation Index Forecast

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Saurabh
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India Meteorological Department
India Meteorological Department

PIB News Update: According to the Environment Monitoring and Research Centre (EMRC) of the India Meteorological Department (IMD):

Air mass inflow forecast in Delhi along with predicted ventilation coefficient and weather forecast is as follows:

  1. The air quality over Delhi-NCR is likely to remain in Moderate category on 01.04.2021 and 02.04.2021. Strong surface winds during and 1st and 2nd April are likely to transport dust from neighboring region. Predominant pollutant will be PM10. The air quality is likely to remain in Moderate to Poor category on 03.04.2021. The Outlook for subsequent 5 Days: The air quality is likely to remain largely in Moderate to Poor category.
  1. The predominant surface wind is likely to be coming from Northwest directions of Delhi with wind speed 16-35 kmph, mainly clear sky and strong dust raising winds (speed 35- 45 kmph) during the day on 01.04.2021. The predominant surface wind is likely to be coming from Northwest directions of Delhi with wind speed 10-20 kmph, mainly clear sky and strong surface winds (speed 20-30 kmph) during the day on 02.04.2021. The predominant surface wind is likely to be coming from Northwest directions of Delhi with wind speed 05-12 kmph and mainly clear sky on 03.04.2021.
  1. Predicted maximum mixing depth is likely to be approx. 2700 m on 01.04.2021, 3100 m on 02.04.2021 and 3400 m on 03.04.2021 over Delhi. Maximum Ventilation index is likely to be approx 34000 m2/s on 01.04.2021, 30000 m2/s on 02.04.2021   and 27000 m2/s on 03.04.2021. The ventilation index lower than 6000 m2/s with average wind speed less than 10 kmph is unfavourable for dispersion of pollutants.
  1. Dust transport from neighboring region to Delhi/NCR is likely during 1st and 2nd April.
  1. Detailed forecast analysis and verification can be seen at https://ews.tropmet.res.in.

Air mass inflow in Delhi along with ventilation index is attached.

(Please Click HERE for details)

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Saurabh
Saurabh
Saurabh Sinha, Editor of IndianBureaucracy.com, is known for his credible, precise and insightful coverage of governance, civil services and administrative developments in India. Under his leadership, the portal has grown into a trusted national platform for accurate updates, appointments and policy movements within the bureaucratic ecosystem. Saurabh’s strong professional networking and deep understanding of government functioning enable him to present timely, reliable and well-contextualised information to readers across sectors. As a thought-driven editor, he promotes informed dialogue on governance reforms while maintaining high editorial standards. His calm, consistent and detail-oriented approach continues to strengthen the portal’s reputation. इंडियनब्यूरोक्रेसी.कॉम के संपादक सौरभ सिन्हा देश की नौकरशाही, शासन व्यवस्था और प्रशासनिक गतिविधियों की विश्वसनीय तथा संतुलित रिपोर्टिंग के लिए जाने जाते हैं। उनके नेतृत्व में यह पोर्टल नियुक्तियों, नीतिगत बदलावों और प्रशासनिक खबरों का एक भरोसेमंद राष्ट्रीय स्रोत बन चुका है। शासन तंत्र की गहरी समझ और मजबूत पेशेवर नेटवर्क के कारण सौरभ पाठकों को समयबद्ध, सटीक और संदर्भित जानकारी प्रदान करते हैं। एक विचारशील संपादक के रूप में वे सुशासन, पारदर्शिता और सुधारों पर सकारात्मक संवाद को बढ़ावा देते हैं। उनकी शांत, सूक्ष्म और पेशेवर संपादकीय शैली पोर्टल की प्रतिष्ठा को लगातार मजबूत कर रही है।
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