NDLI: On the Heat Islands of Washington, DC, and New York City, NY

Content Provider	Springer Nature Link
Author	Hicks, Bruce B. Callahan, William J. Hoekzema, Mark A.
Copyright Year	2010
Abstract	Data collected in 2007 from a dense commercial network (operated by AWS Convergence Technologies, Inc.) of roof-mounted temperature sensors are used to explore the heat island characteristics of Washington, DC, and New York City, NY. Considerable spatial detail is revealed, but aggregating data in annuli centered on assumed central locations in the business districts of the two cities reveals that the heat islands extend out to more than 30 km, with the New York City island being somewhat larger. The results from both arrays reveal the influence of the surroundings, with large scatter of daytime results being characteristic of sites with the greatest local surface inhomogeneity. Nighttime data are more ordered, and suggest that surface air temperatures decrease by about 0.02°C km−1 for the Washington case, and 0.04°C km−1 for New York, with the winter behaviour being more pronounced than for other seasons. Scatter of the data in the daytime is a common feature for all seasons, but mainly for those with the strongest insolation. Comparison between working day and weekend temperatures provides convincing verification that the air responds quite slowly to changes in surface (radiometric) temperatures, with distance constants of the order of many tens of km. There appears to be a small wind speed effect, which is evident in the nighttime data but is largely obscured by scatter for the daytime.
Starting Page	291
Ending Page	300
Page Count	10
File Format	PDF
ISSN	00068314
Journal	Boundary-Layer Meteorology
Volume Number	135
Issue Number	2
e-ISSN	15731472
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-02-11
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Heat island New York Urban meteorology Washington D.C. Atmospheric Protection/Air Quality Control/Air Pollution Meteorology/Climatology
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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