Advertisement

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 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

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

Personalised recommendations