Boundary-Layer Meteorology

, Volume 70, Issue 1–2, pp 197–210 | Cite as

Radiation balance in a tropical city — Delhi (India)

  • B. Padmanabhamurty
  • D. Bandopadhyay
Research Note

Abstract

The impact of urbanization is assessed by comparing values of the radiation parameters at an urban location with those of a rural site. Urban Delhi was divided according to land-use and the effects of urbanization was studied on incoming short-wave (K↓), albedo, incoming longwave (L↓, outgoing longwave (L↑), and net radiation (Q*), were individually studied at four representative sites (Rural, Commercial, Residential and Industrial). MaximumK↓ was observed in the rural and commercial areas whereas highL ↓ was observed in the commercial and industrial locations. High depletion ofK ↓ of the order of 13% was observed for the industrial location in the winter season. An increase ofL ↓ in, the industrial location is of the same order as that of the commercial location, i.e. 20%. The residential location shows quite moderate (4.6%) depletion ofK ↓ in comparison with other sites.

Keywords

Radiation India Winter Season Radiation Parameter Residential Location 

Nomenclature

U

Urban

R

Rural

K

Incoming Short-wave radiation

L

Incoming Long-wave radiation

L

Outgoing Long-wave radiation

Q*

Net Radiation

α

Albedo

K*

Net Short-wave radiation

L*

Net Long-wave radiation

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References

  1. Adebayo, Y. R.: 1992, ‘Aspects of the Variation in Some Characteristics of Radiation Budget within the Urban Canopy of Ibadan’,Atmosph. Envir., Part B: Urban Atmosphere,24B, 1, 9–18.Google Scholar
  2. Bhowmick, B.: 1992, ‘Plan to Combat Traffic Congestion’,The Hindustan Times, English Daily, July, 30th.Google Scholar
  3. Oke, T. R.: 1987,Boundary Layer, Climates, Methuen & Co. Ltd.Google Scholar
  4. Padmanabhamurty, B. and Mandal, H.D.: 1982, ‘Urban-Rural Radiation Differences’,Mausam 33, 509.Google Scholar
  5. Peterson, James T. and Stoffel, Thomas L.: 1980, ‘Analysis of Urban-Rural Solar Radiation Data from St. Louis, Missouri’,J. of Appl Meteorol. 19.Google Scholar
  6. Surendran P.K.: 1993, Delhi most polluted city in India.Times of India, English Daily, February 6th.Google Scholar
  7. UN: 1989, Prospects of world urbanization 1988, Population Studies No. 112,United Nations, New York.Google Scholar

Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • B. Padmanabhamurty
    • 1
  • D. Bandopadhyay
    • 1
  1. 1.School of Environmental SciencesJawaharlal Nehru UniversityNew DelhiIndia

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