Next Article in Journal
Urban Soundscapes: Characterization of a Pedestrian Tourist Route in Sorrento (Italy)
Next Article in Special Issue
Estimation of Particulate Matter Impact on Human Health within the Urban Environment of Athens City, Greece
Previous Article in Journal
Research by Design: Proposition for a Methodological Approach
Article Menu
Issue 1 (March) cover image

Export Article

Open AccessArticle
Urban Sci. 2017, 1(1), 3; doi:10.3390/urbansci1010003

Urban Heat Island Intensification during Hot Spells—The Case of Paris during the Summer of 2003

1
VITO—Flemish Institute for Technological Research, B-2400 Mol, Belgium
2
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, 15236 Athens, Greece
3
Department of Physics, National and Kapodistrian University of Athens, 15784 Athens, Greece
4
Department of Environmental Engineering, Democritus University of Thrace, 67100 Xanthi, Greece
5
Planetek Italia, via Massaua, 12-70132 Bari, Italy
6
European Space Agency, ESRIN, 00044 Frascati, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Panagiotis Nastos
Received: 28 October 2016 / Revised: 15 November 2016 / Accepted: 17 November 2016 / Published: 24 November 2016
(This article belongs to the Special Issue Urban Thermal Environment under Global Warming Pressure)
View Full-Text   |   Download PDF [1233 KB, uploaded 26 December 2016]   |  

Abstract

Heat waves are projected to become more frequent, longer-lasting, and intense. At the same time, urban areas are confronted with the urban heat island (UHI) phenomenon, which adds to the thermal stress experienced during hot spells. Focusing on the Paris area during the hot summer of 2003, we investigated the influence of heat waves on UHI intensity, i.e., the urban-rural temperature contrast. In a first step, this was done based on observed temperatures from an urban and a rural site, showing that per C increase in the daytime temperature, the nighttime UHI intensity increased by 0.086 C. Recognizing the limited spatial representativeness of the urban experimental site, located in a park, we then performed simulations with an urban climate model, covering the wider Paris area for the summer of 2003. First, a validation was done using the aforementioned temperature measurements to do so. Subsequently, we estimated the sensitivity of the nighttime UHI intensity with respect to the daytime temperature, this time using simulated temperatures of the densely built-up areas in the center of Paris, yielding an increase of UHI intensity of 0.19 C per C increase in the daytime temperature. While these results only apply to the domain and period studied, they do confirm recent reports that the UHI intensity increases during heat waves. The results also show that for the cooler parts of the urban fabric (e.g., parks), the UHI intensification during heat waves is around half of that of the dense urban fabric, thus providing some insights into possible mitigation strategies for the future. View Full-Text
Keywords: urban heat island; urban climate modeling; heat wave episode urban heat island; urban climate modeling; heat wave episode
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

De Ridder, K.; Maiheu, B.; Lauwaet, D.; Daglis, I.A.; Keramitsoglou, I.; Kourtidis, K.; Manunta, P.; Paganini, M. Urban Heat Island Intensification during Hot Spells—The Case of Paris during the Summer of 2003. Urban Sci. 2017, 1, 3.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Urban Sci. EISSN 2413-8851 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top