A study on the diffusion climatology over Delhi

Delhi is facing enormous environmental pollution problems particularly atmospheric pollution. To assess this, meteorological data of Delhi observed at two stations for the five-year period (1983–1987) have been analysed. The predominant wind direction has been in the region of W to NNW except in Aug...

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Veröffentlicht in:Energy and buildings 1990-01, Vol.15 (1-2), p.75-81
Hauptverfasser: Padmanabhamurty, B., Ravichandran, C.
Format: Artikel
Sprache:eng
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Zusammenfassung:Delhi is facing enormous environmental pollution problems particularly atmospheric pollution. To assess this, meteorological data of Delhi observed at two stations for the five-year period (1983–1987) have been analysed. The predominant wind direction has been in the region of W to NNW except in August when it is from the region of ESE and SE. Observations showed no unstable conditions existed during nighttime and no stable conditions existed in the daytime in all months. April has the highest mixing height and ventilation coefficient. From the results obtained it has been concluded that the daytime is a suitable time for good dispersion in all months but the setting up of any industry in the region of W to NNW of Delhi is not advisable. In the case of existing industries, emissions must be lessened during nighttime and particularly in the winter months.
ISSN:0378-7788
DOI:10.1016/0378-7788(90)90118-3