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      The Urban Moisture Island Phenomenon in Hong Kong

      Published
      1 , 1 , 2 , 1 ,
      1st International Conference on Moisture in Buildings 2021 (ICMB21)
      28-29 June 2021
      urban moisture, urban moisture island, urban model, urban climate, lumped model
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            Abstract

            In this study, we tended to fill in the gap of less-explored urban humidity. Our analysis revealed a more significantly rising trend in humidity in Hong Kong. A new lumped moisture model is developed to better understand and quantify the urban moisture environment. The modelling results demonstrate that a weakened city ventilation tends to increase urban air moisture. Besides, natural surfaces (vegetation and bare soil) contribute to reducing urban heat stress through evapotranspiration. It is noteworthy that the absolute humidity will start to decrease when the increment of natural surfaces reaches a threshold. On the other hand, large wall area in Hong Kong performs both sinks and storages for urban air moisture.

            Content

            Author and article information

            Conference
            13 May 2021
            Affiliations
            [1 ] Department of Mechanical Engineering, The University of Hong Kong
            [2 ] Hong Kong Observatory
            Article
            10.14293/ICMB210066
            c65d4f96-86cb-47bc-977a-2e22f268d99d
            The Author(s)

            Published under Creative Commons Attribution 4.0 International ( CC BY 4.0). Users are allowed to share (copy and redistribute the material in any medium or format) and adapt (remix, transform, and build upon the material for any purpose, even commercially), as long as the authors and the publisher are explicitly identified and properly acknowledged as the original source.

            1st International Conference on Moisture in Buildings 2021
            ICMB21
            Online
            28-29 June 2021
            History
            Product

            ScienceOpen


            The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
            Engineering

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