The Ministry of Earth Sciences (MoES), Government of India has taken up a multi-institutional initiative to conduct an intensive ground-based measurement campaign at the Indira Gandhi International Airport (IGIA), Delhi, to understand different physical and chemical features of Fog and factors responsible for its genesis, intensity and duration.
WIFEX was conducted in a pilot mode at IGIA during last winter, and will be continued during December 2016 till February 2017.
The main scientific objective of this project is to study the characteristics and variability of fog events and associated dynamics, thermodynamics and fog microphysics, with the aim to achieve better understanding of fog life cycle and ultimately improve capability in fog prediction.
The objectives of the Winter Fog Experiment (WIFEX) are to develop better now-casting (next 6 hours) and forecasting of winter fog on various time and spatial scales, and help reduce its adverse impact on aviation, transportation and economy, and loss of human life due to accidents.
The aim is to achieve better understanding of fog life cycle and ultimately improve capability in fog prediction.
These measurements will form the basis for understanding the some of the key questions on fog formation and dispersion. With these measurements, modeling efforts also will be made with the ultimate aim to improve the prediction skill. These observations from intense campaign will be further used to validate model forecasts and to improve model capability. It is proposed to introduce this model for operational forecasts of Fog for the winter season of 2017-18.
In addition to Indian Institute of Tropical Meteorology (IITM), Pune, India Meteorology Department (IMD), these are also participating in this observational campaign:
• National Center for Medium Range Weather Forecast (NCMRWF),
• Airport Authority of India, GMR,
• Indira Gandhi International Airport and
• Indian Institute of Science Education and Research (IISER) Mohali