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


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.


Radiation India Winter Season Radiation Parameter Residential Location 







Incoming Short-wave radiation


Incoming Long-wave radiation


Outgoing Long-wave radiation


Net Radiation




Net Short-wave radiation


Net Long-wave radiation


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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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