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

Poh Chin LAI; C. Y., Crystal CHOI; Pui Yun, Paulina WONG; Thuan Quoc THACH; Man Sing WONG; Wei CHENG; Alexander KRÄMER; Chit Ming WONG

doi:10.1016/j.buildenv.2015.12.022

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

Poh Chin LAI, C. Y., Crystal CHOI, Pui Yun, Paulina WONG, Thuan Quoc THACH, Man Sing WONG, Wei CHENG, Alexander KRÄMER, Chit Ming WONG

Research output: Journal Publications › Journal Article (refereed) › peer-review

16 Citations (Scopus)

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.

Original language	English
Pages (from-to)	22-28
Number of pages	7
Journal	Building and Environment
Volume	99
DOIs	https://doi.org/10.1016/j.buildenv.2015.12.022
Publication status	Published - 1 Apr 2016
Externally published	Yes

Funding

This study was supported by the earmarked grants GRF 780512 and GRF 744113 of the Hong Kong Research Grants Council. We thank the Hong Kong Government departments including the Department of Health (Elderly Health Services) for the cohort data and the Hong Kong Observatory for meteorological data. The geocoding of cohort locations was accomplished with support from the Wellcome Trust. The authors are grateful for expert advice on the methodology provided by Professor Lutz Katzschner, Institute for Environmental Meteorology, Kassel University, Kassel, Germany. Wind velocity data at reference height was specially computed and provided by courtesy of Professor Jimmy Fung, Institute for the Environment, Hong Kong University of Science and Technology, Hong Kong. RayMan Pro software was provided by courtesy of Professor Andreas Matzarakis, Universität Freiburg, Meteorologisches Institut, Hebelstr, Germany.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.buildenv.2015.12.022

Cite this

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title = "Spatial analytical methods for deriving a historical map of physiological equivalent temperature of 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.",

author = "LAI, {Poh Chin} and CHOI, {C. Y., Crystal} and WONG, {Pui Yun, Paulina} and THACH, {Thuan Quoc} and WONG, {Man Sing} and Wei CHENG and Alexander KR{\"A}MER and WONG, {Chit Ming}",

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AU - LAI, Poh Chin

AU - CHOI, C. Y., Crystal

AU - WONG, Pui Yun, Paulina

AU - THACH, Thuan Quoc

AU - WONG, Man Sing

AU - CHENG, Wei

AU - KRÄMER, Alexander

AU - WONG, Chit Ming

PY - 2016/4/1

Y1 - 2016/4/1

N2 - 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.

AB - 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.

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DO - 10.1016/j.buildenv.2015.12.022

M3 - Journal Article (refereed)

SN - 0360-1323

VL - 99

SP - 22

EP - 28

JO - Building and Environment

JF - Building and Environment

ER -

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

Abstract

Funding

UN SDGs

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