Advertisement

Theoretical and Applied Climatology

, Volume 75, Issue 1–2, pp 29–42 | Cite as

Mesoscale aspects of the Urban Heat Island around New York City

  • S. D. Gedzelman
  • S. Austin
  • R. Cermak
  • N. Stefano
  • S. Partridge
  • S. Quesenberry
  • D. A. Robinson
  • 732 Downloads

Summary

¶A mesoscale analysis of the Urban Heat Island (UHI) of New York City (NYC) is performed using a mesoscale network of weather stations. In all seasons the UHI switches on rapidly in late afternoon and shuts down even more rapidly shortly after dawn. It averages about 4 °C in summer and autumn and 3 °C in winter and spring. It is largest on nights with clear skies, low relative humidity through much of the troposphere, and weak northwest winds, when it may exceed 8 °C. The synoptic meteorological situation associated with the largest UHI occurs roughly two to three nights after cold front passages.

During spring and summer, sea breezes commonly reduce and delay the UHI and displace it about 10 km to the west. Backdoor cold fronts, which occur most frequently in spring and early summer, reduce or even reverse the UHI, as cold air from the water to the northeast keeps NYC colder than the western suburbs. Cases documenting the sensitivity and rapidity of changes of the UHI to changes in parameters such as cloud cover, ceiling, and wind speed and direction are presented.

Keywords

Wind Speed Weather Station York City Cloud Cover Early Summer 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag/Wien 2003

Authors and Affiliations

  • S. D. Gedzelman
    • 1
  • S. Austin
    • 2
  • R. Cermak
    • 3
  • N. Stefano
    • 4
  • S. Partridge
    • 5
  • S. Quesenberry
    • 6
  • D. A. Robinson
    • 7
  1. 1.Department of Earth and Atmospheric Sciences, City College of New York, New York, NY, USAUS
  2. 2.Computer Sciences Department, Physical, Environmental, and Computer Sciences Department, Medgar Evers College, Brooklyn, NY, USAUS
  3. 3.Weather Access Inc., Highland Park, NJ, USAUS
  4. 4.Sussex County Weather Network, Wantage, NJ, USAUS
  5. 5.Weather Access Inc., Chatham, NJ, USAUS
  6. 6.South Jersey Resource Conservation and Development Council, Hammontown, NJ, USAUS
  7. 7.Department of Geography, Rutgers University, New Brunswick, NJ, USAUS

Personalised recommendations