Title

Spatial analytical methods for deriving a historical map of physiological equivalent temperature of Hong Kong

Document Type

Journal article

Source Publication

Building and Environment: The International Journal of Building Science and its Applications

Publication Date

4-2016

Volume

99

First Page

22

Last Page

28

Publisher

Elsevier

Keywords

Physiological equivalent temperature, PET, Thermal comfort, Spatial analysis, RayMan model, Hong Kong

Abstract

Physiological Equivalent Temperature (PET) has been widely used as an indicator for impacts of climate change on thermal comfort of humans. The effects of thermal stress are often examined using longitudinal observational studies over many years. A major problem in retrospective versus prospective studies is that it is not feasible to go back in time to measure historical data not collected in the past. These data must be reconstructed for the baseline period to enable comparative analysis of change and its human impact. This paper describes a systematic method for constructing a PET map using spatial analytical procedures. The procedures involve estimating PET values (based on the RayMan model and four key parameters of temperature, relative humidity, wind velocity, and mean radiant temperature) at a spatially disaggregated level comprising of a grid of 100 m × 100 m cells. The method can be applied to other geographic locations pending availability of basic meteorological and morphological data of the locations.

DOI

10.1016/j.buildenv.2015.12.022

Print ISSN

03601323

E-ISSN

1873684X

Funding Information

This study was supported by the earmarked grants GRF 780512 and GRF 744113 of the Hong Kong Research Grants Council.

Publisher Statement

Copyright © 2016 Elsevier Ltd. All rights reserved. Access to external full text or publisher's version may require subscription.

Full-text Version

Publisher’s Version

Recommended Citation

Lai, P.-C., Choi, C. C. Y., Wong, P. P. Y., Thach, T.-Q., Wong, M. S., Cheng, W., ... Wong, C.-M. (2016). Spatial analytical methods for deriving a historical map of physiological equivalent temperature of Hong Kong. Building and Environment: The International Journal of Building Science and its Applications, 99, 22-28. doi: 10.1016/j.buildenv.2015.12.022