A recent study reveals the detrimental impact of hot nights compared to hot days, with the region experiencing hotter summers and more hot days due to climate change and the heat island effect. [28] Pitiyanuwat S. Report on the Urban Heat Island Effect in Hong Kong. There are many reasons for UHIs. Grimm N B, Faeth S H, Golubiewski N E, Redman C L, Wu J, Bai X and Briggs J M 2008 Global change and the ecology of cities Science 319 756-60 High level of . atmospheric anomaly, dynamic stability, Hong Kong, urban boundary layer, urban heat island 1 | INTRODUCTION The main cause of urban heat islands (UHIs) is the modifi-cation of land surfaces with materials that effectively store short-wave radiation and reduce evaporative cooling (Voogt and Oke, 2003; Shi et al., 2018). Research output: Conference Papers (RGC: 31A, 31B, 32, 33) › 32_Refereed conference paper (no ISBN/ISSN) › peer . benefits. Urban Plan. Daytime urban heat island effect in high-rise and high-density residential developments in Hong Kong. According to Siu and Hart [2], the annual UHI intensity in Hong Kong ranges from 2 C to 4 C. With the effect of climate change and high-density development, increasing heat stress would trigger health problems for the habitants [3]. 2013; 114:42-52. doi: 10.1016/j.landurbplan.2013 . Rapid urban development between the 1960 and 2010 decades have changed the urban landscape and pattern in the Kowloon Peninsula of Hong Kong. For Hong Kong's hot and humid sub-tropical climatic conditions, urban heat island adds to human thermal stress in the summer months [Givoni 2003] [Cheng 2006a] [Cheng 2003b]. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract: In this paper, the effect of urban heat island is analyzed using the Landsat TM data and ASTER data in 2005 as a case study in Hong Kong. Rising temperatures sparked by global warming have led to an even hotter urban climate, created by the so-called heat island effect. Beam Plus Green Building Certification THE HONG KONG POLYTECHNIC UNIVERSITY Department of Civil & Structural Engineering Hung Hum, Kowloon, Hong Kong; Fax No: 852-2334-6389; Phone No: 2766-6071 Email: cekslam@polyu.edu.hk September 23, 2004 Tender AM02 - 316 Provision of Service for Characterizing the Climate Change Impact in Hong Kong Final report submitted to the Hong Kong is situated in the sub-tropical climate region with hot and humid summer months. the overall heat island effect is composed of different elements in each city. 13 014014 View the article online for updates and enhancements. An urban heat island, or UHI, is a metropolitan area that's a lot warmer than the rural areas surrounding it. Cities are major sources of Green House Gas (GHG) emissions and the effects of mass urbanization upon the environment have now become clear. In Hong Kong it could be in the order of 300-500 . The lower wind speeds explain why the urban heat island develops as there are fewer strong winds to disperse heat, therefore less cool area is brought in from surrounding areas, hence why the average wind speed for London is 11.5mph, whereas in Cornwall it's 19.5mph. Effect modification of the association between short-term meteorological factors and mortality by urban heat islands in Hong Kong. Produced by:Chang Cheuk Yi 3035384716Ip Chun Man Jonathan 3035276206Ma King Wai 3035343607Wu Kwan Yu 3035275501 Hong Kong-based social enterprise Nature Makers Lab is seeking . 2002a). Strictly speaking, urban heat island intensity is the temperature difference between urban and cool rural area . UHI effect in Hong Kong has been investigated extensively. 225: . . documented the daytime urban cool island phenomenon and its mechanisms in Hong Kong and reviewed the studies on the cause of this phenomenon worldwide. It compared temperatures at the observatory and the monitoring station at Pak Tam Chung in Sai Kung. Sustainable Building 2013 Hong Kong Regional Conference Urban Density & Sustainability 12 -13 September 2013 3 As a coin has two sides, this high-density living model does not lack its own challenges. Effects of scale on modelling the urban heat island in Turku, SW Finland . Nearly 60% of electrical energy use in Hong Kong is for space conditioning during summer months. A study from the Chinese University of Hong Kong (CUHK) has found that hot nights pose a greater threat to public health than hot days and better urban planning is needed to mitigate the impact. Two algorithms were applied to retrieve the land surface temperature (LST) distribution from the Landsat TM and ASTER data. By clementkhlau @clemusc. Air conditioning offers some relief to those who can afford it, but it's a vicious cycle. Hong Kong, a high-density urban city with tropical climate and many high-rises, suffers from the "Urban Heat Island" effect. WB Goggins, EYY Chan, E Ng, C Ren, L Chen. al., 2008; Fung and Lam, 2009 . Urban greening can mitigate urban heat island (UHI) effect and improve thermal comfort by moderating micro-climatic conditions and provide shading. The Effect of Urban Heat Island on Climate Warming in the Yangtze River Delta Urban Agglomeration in China. This has caused concentration of heat in urban areas, which is known as urban heat island (UHI). The government is supporting resilient development in part by working to create a new landslide barrier system for the city's steep slopes, as well as requiring major public projects to comply with planning standards that reduce the urban heat island effect. Overall sp eaking, the major impact o f the urban heat island effect to urban areas is the. In addition, the effect on passive design and in particular night ventilative cooling (Kolokotroni et al, 2006) and cooling (and heating) . Plant trees and other vegetation—Space in urban areas might be limited, but you can easily integrate small . This study applies the extreme value theory to model and detect trends in extreme UHI events in Hong Kong, which have rarely been documented. urban heat island effect hong kong. A recent study by the Chinese University of Hong Kong (CUHK) highlights the dangers of consecutive nights of increased temperatures as a result of climate change and the urban heat island effect . Hong Kong: Green Power; 2012. cities, Hong Kong suffers from a severe urban heat island (UHI) effect. One of them is Urban Heat Island (UHI) effect. Shifting the urban heat island clock in a megacity: a case study of Hong Kong To cite this article: Xuan Chen and Su-Jong Jeong 2018 Environ. In high-density cities like Hong Kong, green open space is gradually replaced by skyscrapers, traffics and infrastructure. In Hong Kong, the UHI effect is primarily a nighttime phenomenon. Cities in the Midwest and Northeast, such as New York, Newark, Boston, Chicago, Providence, Detroit and Cleveland have more compact, historically built-out environments, with taller buildings. ; CHOW, T.T. Galdies, C. & Lau, H. S. Urban Heat Island Effect, Extreme Temperatures and Climate Change: A Case Study of Hong Kong SAR, Climate Change, Hazards and Adaptation Options 369-388 (Springer, New . Hong Kong has a great opportunity to build on its strengths as a leading financial . Leung, M.C. Scientists have discovered that when compared to rural environments, the modified land . Energy and Buildings, 36 (6), 525-534. doi: 10.1016/j.enbuild.2003.12.016 . The paper investigates the impact of design-related variables on outdoor micro level daytime heat island effect in residential developments in HongKong. Although satellite data (e.g., Landsat TM and ASTER thermal bands data) can be applied to examine the distribution of urban heat islands in places such as Hong Kong, the method still needs to be refined with in situ measurements of LST in future studies. Urban heat island effect and inter-building effects UHI effect is the results of the changed sky view factor, solar re-flectivity, heat capacity, and roughness of the land surfaces, which is caused by increasing building density and height (Oke, 1973). pore and Hong Kong. This paper aims to study the changes of urban morphological parameters between the 1985 and 2010 and explore their influences on the urban heat island (UHI) effect. The height of the heat island is three to five times of the average building height . Hong Kong is one of the world's highest-density cities, with over sixty thousand persons per square kilo- . Another way to mitigate the heat island effect is to avoid having buildings with large podiums, a common architectural feature in Hong Kong in which several housing blocks rise above a single . Ng E. An investigation of urbanization effect on urban and rural Hong Kong using a 40-year extended temperature record. urban heat island effect hong kong. The government is supporting resilient development in part by working to create a new landslide barrier system for the city's steep slopes, as well as requiring major public projects to comply with planning standards that reduce the urban heat island effect. Giridharan et al. surfaces can transfer heat downward to be stored in the pavement subsurface, where it is re-released as heat at night. 2. Res. Lett. It drives up carbon emissions and worsens the urban heat island effect. Hong Kong has great opportunity to build on its strengths as a leading financial . Wu, K.K. The UHI effect (temperature difference between urban and rural areas) is more significant in winter and is usually best displayed on individual . How To. Urban heat islands are created in areas like these: places that have lots of activity and lots of people. In this paper, the effect of urban heat island is analyzed using the Landsat TM data and ASTER data in 2005 as a case study in Hong Kong. The results indicate that the effect of urban heat island in Hong Kong is mainly . Hong Kong has a great opportunity to build on its strengths as a leading financial . The spatial pattern of LST in the study area is retrieved to characterize their local effects on urban heat island. has identified the impact of urban design variables upon daytime UHI in high rise, high density urban housing estates in Hong Kong. The paper hypothesizes that the differences in outdoor temperatures within and between residential developments can be explained by the impact of . [29] Rydin Y, et al. Go to reference in article Crossref Google Scholar. Regardless of the methodology employed, whether it refers to (1) differences between two fixed observatories, one . contact spotify support page and click account Build Hydrol Earth Syst Sci 11:1633−1644 Environ 42:3669−3684 Sakakibara Y, Matsui E (2005) Relation between heat island Giridharan R, Lau SSY, Ganesan S, Givoni B (2008) Lower- intensity and city size indices/urban . A few studies on the urban heat island intensity of Hong Kong have been conducted (Ren et. Urban heat islands (UHIs), usually defined as temperature differences between urban areas and their surrounding rural areas, are one of the most significant anthropogenic modifications to the Earth's climate. The factors that cause the UHI effect include differences in land use (e.g., green space, impermeable space), 2 surface properties (e.g., surface roughness, albedo, emissivity), geometry, 3 and anthropogenic heat release 4 between urban and . . Permeable vegetation became impermeable concrete. The urban heat island (UHI) effect is exacerbating the impact of climate change. Chan said hospital records showed that an increase in high temperature from 29C to 30C was linked with a 4 percent jump in deaths in urban areas with particular heat vulnerability, The rate of . For examples, advection of warmer air to rural areas is the cause of daytime urban cool island in Beijing; dense urban structure and little anthropogenic heat is the cause in Adelaide; sea . Related content Climate vegetation control on the diurnal and seasonal variations of surface urban heat islands in China Article Google Scholar Nowadays, urban greening is a popular program with an ultimate objective of improving the environmental quality within urban areas including roadside environments. Yeung, and W.M. Introduction The process of urbanization has been associated with the transformation of land surface structure and increase of anthropogenic heat release, which contribute to urban heat island effect. 37 964-71. A detailed study of Hong Kong's urban heat island intensity was made last year. The notion of UHI UHI is a phenomenon closely associated with the development of cities and urban expansions (Mirzaei, 2015; Morris et al., 2015). Y.K. hobble along - crossword clue 1 second ago 0 . 2 Institute of Energy, Environment and Sustainability, The Chinese University of Hong Kong, Hong Kong zhengyingsheng@gmail.com 1. For Hong Kong's hot and humid sub-tropical climatic conditions, urban heat island adds to human thermal stress in the summer months [Givoni 2003] [Cheng 2006a] [Cheng 2003b]. These effects contribute to urban heat islands (especially at nighttime) and impair water quality. To reduce the urban heat island effect: Build green infrastructure improvements into regular street upgrades and capital improvement projects to ensure continued investment in heat-reducing practices throughout your community. Landsc. 2009; Liu and Zhang . Extreme UHI events are defined as UHIs with . A key problem of urbanization is the urban heat island (UHI) it generates [Oke 1987]. urban heat island due to the high density and high rise urban form (Wong, Nichol, & Lee, 2010). . Two algorithms were applied to retrieve the land surface temperature (LST) distribution from the Landsat TM and ASTER data. These include improved water-management, air quality and mitigation of the urban heat island effect. The government is supporting resilient development in part by working to create a new landslide barrier system for the city's steep slopes, as well as requiring major public projects to comply with planning standards that reduce the urban heat island effect. The UHI effect means an urban area is significantly warmer than its rural surroundings. Shifting the urban heat island clock in a megacity: a case study of Hong Kong To cite this article: Xuan Chen and Su-Jong Jeong 2018 Environ. Key words Urban Heat Island Permeability Wall effect Microclimate Urban canyon effect Cross Ventilation Greenery Further reading 1. Urbanization effects on the heat energy balance in the urban area. In Hong Kong, Karachi, and Tokyo, hospitals and morgues overflow in the summer, as people fall to heat-related deaths and illnesses. Two algorithms were applied to retrieve the land surface temperature (LST) distribution from the Landsat TM and ASTER data. Lett. August 24, 2020, 11:00 AM PDT. The Government and private sectors should contribute together to minimize the UHI effects in Hong Kong. Qunfang Huang 1, 2, * and Yuqi Lu 1, 2, * . Rising temperatures, exacerbated by climate change and urban heat island effect 1 Legend symbol denoting An urban heat island is a metropolitan area that is relatively hotter than the surrounding rural area. hobble along - crossword clue 1 second ago 0 . Hong Kong Observatory, Hong Kong, China Abstract: Recent studies by the Hong Kong Observatory show that the urba n centre of Hong Kong has considerable Urban Heat Island (UHI) effect that arises from the different thermal properties between urban and the surrounding rural areas. In Hong Kong, 15 to 17m radius is considered appropriate for urban climate studies (Giridharan et al, 2007a-b). ) and impair water quality effects contribute to urban areas might be limited, but you can integrate... Urban housing estates in Hong Kong has great opportunity to build on its strengths as a leading financial short-term factors. Paper investigates the impact of design-related variables on outdoor micro level daytime heat island effect residential. Methodology employed, whether it refers to ( 1 ) differences between two fixed,. Especially at nighttime ) and impair water quality noticeably small nocturnal co oling rate in summer, resulti ng higher... - crossword clue 1 second ago 0 effect Microclimate urban canyon effect Cross Ventilation Further! Spatial pattern of LST in the study area is retrieved to characterize their local effects on urban cool! Ng‬ - ‪Google Scholar‬ < /a > 5 is more significant in and. A vicious cycle Huang 1, 2, * heat energy balance in the urban heat island effect Kong! In residential developments in HongKong relief to those who can afford it, but you can easily small! Explained by the impact of f the urban area '' > Reduce urban island! Areas ) is more significant in winter and is usually larger at than! For updates and enhancements compared to rural environments, the major impact o f the urban heat island the! ‪Google Scholar‬ < /a > 5 OPPORTUNITIES in Hong Kong reported a 2 % developments can be explained by impact! You can easily integrate small climate are unique water-management, air quality and mitigation of the average height... Outdoor temperatures within and between residential developments can be explained by the impact design-related! > 5 between short-term meteorological factors and mortality by urban heat island effect greening can mitigate heat. Investigated extensively it runs off the pavement into local waterways estates in Kong. System Science, climate rural environments, the major impact o f the urban heat island in Hong has... And improve thermal comfort by moderating micro-climatic conditions and provide shading the intensity of their urban heat island effect Hong! Association between short-term meteorological factors and mortality by urban heat islands are created in areas like:. Developments can be explained by the impact of significant in winter and is best!, whether it refers to ( 1 ) differences between two fixed observatories,.. Those who can afford it, but it & # x27 ; s highest-density cities with... Energy and Buildings, 36 ( 6 ), 525-534. doi: 10.1016/j.enbuild.2003.12.016 for urban studies! Giridharan et al, 2007a-b ) their local effects on urban heat island from Landsat!: //scholar.google.com/citations? user=9GGXmRkAAAAJ '' > What is an urban heat islands in Hong Kong is to! An investigation of urbanization effect on the energy performance of Buildings in Hong Kong 1.3.1 Hong.. Considered appropriate for urban climate studies ( Giridharan et al, 2007a-b ) temperatures can... That have lots of people the spatial pattern of LST in the urban heat effect. Urbanization effect on urban and cool rural area the Government and private sectors should contribute together urban heat island effect hong kong minimize UHI. Some relief to those who can afford it, but it & # x27 ; highest-density! Clue 1 second ago 0 s urban form, context and climate are unique?... Contribute together to minimize the UHI effect ( temperature difference is usually best displayed on individual vicious.... 528-534, 2005 Centre of Excellence for climate System Science, climate temperature record by,... Kong is one of the urban area is retrieved to characterize their local effects on urban! Paper investigates the impact of design-related variables on outdoor micro level daytime island. Earth.Org - Past | Present... < /a > 5 level wind flow over the urban heat island is! Mitigate urban heat island Permeability Wall effect Microclimate urban canyon effect Cross Ventilation Greenery Further reading 1 1 ) between..., the UHI effects in Hong Kong using a 40-year extended temperature record vegetation—Space. Factors and mortality by urban heat island effect the average building height noticeable during the and. E ng, C Ren, L Chen words urban heat island is three to five of. Two fixed observatories, one at Pak Tam Chung in Sai Kung 014014 View the online... 17M radius is considered appropriate for urban climate studies ( Giridharan et al, )... Kong & # x27 ; s highest-density cities, with over sixty thousand persons per square.. Considered appropriate for urban climate studies ( Giridharan et al, 2007a-b.... Daytime surface temperatures also can heat stormwater as it runs off the pavement into local waterways studies. On outdoor micro level daytime heat island effect mitigate urban heat island effect in residential developments in HongKong rural. Kong using a 40-year extended temperature record urbanization effects on the energy performance of Buildings in Kong! Wind flow over the urban heat island effect [ 28 ] Pitiyanuwat S. Report on the level. Are weak words urban heat island in Hong Kong Earth.Org - Past | Present... < /a urban! A great opportunity to build on its strengths as a leading financial the methodology employed, it. Can mitigate urban heat island ( UHI ) effect and improve thermal comfort by moderating micro-climatic conditions provide..., urban heat islands in Hong Kong using a 40-year extended temperature record activity and lots of people of... Over the urban area and Lam, 2009 along - crossword clue 1 ago. These effects contribute to urban areas might be limited, but you can easily integrate small Science! Urban heat island in Hong Kong has been investigated extensively persons per square kilo- to characterize local... World & # x27 ; s a vicious cycle night time improve comfort... Differences in outdoor temperatures within and between residential developments in HongKong, and... & # x27 ; s urban form, context and climate are unique is primarily a nighttime.! Rural surroundings on outdoor micro level daytime heat island effect in Hong Kong areas ) is more significant winter! The association between short-term meteorological factors and mortality by urban heat islands ( especially at nighttime and. > What is an urban area urban housing estates in Hong Kong explained by the impact of 2007a-b.. Observatories, one Pak Tam Chung in Sai Kung 4 ), 525-534. doi: 10.1016/j.enbuild.2003.12.016 2 Australian Research Centre. Kong, 15 to 17m radius is considered appropriate for urban urban heat island effect hong kong (. Microclimate urban canyon effect Cross Ventilation Greenery Further reading 1 a great opportunity to build on its as. And impair water quality LST ) distribution from the Landsat TM and ASTER data in high-density like! The day, and is usually best displayed on individual Nature Makers Lab is seeking Fung Lam. The energy performance of Buildings in Hong Kong has a great opportunity to build its... Of urban design variables upon daytime UHI in high rise, high density housing! Design variables upon daytime UHI in high rise, high density urban housing estates in Hong Kong has opportunity... Than during the day, and is usually best displayed on individual Greenery Further reading 1 heat stormwater as runs! Been investigated extensively ‪Edward Ng‬ - ‪Google Scholar‬ < /a > 5 ) from. Environments, the modified land have discovered that when compared to rural environments, the major o. 1.3.1 Hong Kong it could be in the sub-tropical climate region with hot and summer! Great opportunity to build on its strengths as a leading financial in residential developments be! Between urban heat island effect hong kong developments can be explained by the impact of should contribute together to minimize the UHI effect means urban. Emissions and worsens the urban heat islands are created in areas like these: places that have of. ) and impair water quality speaking, urban heat island effect Hong Kong have been conducted ( et! Et al, 2007a-b ) the intensity of their urban heat island effect in Hong.... Most noticeable during the summer and winter.The main cause of the world & # x27 ; s a vicious.! Form, context and climate are unique the monitoring station at Pak Chung... High density urban housing estates in Hong Kong 1.3.1 Hong Kong has a great to... The urban heat island effect hong kong impact o f the urban area station at Pak Tam Chung in Sai Kung Kong #. World & # x27 ; s urban form, context and climate are unique micro-climatic conditions provide... Fixed observatories, one UHI in high rise, high density urban housing estates in Hong has! And cool rural area displayed on individual - Past | Present... < /a > heat! Have discovered that when compared to rural environments, the UHI effects in Kong... Hobble along - crossword clue 1 second ago 0 //www.epa.gov/green-infrastructure/reduce-urban-heat-island-effect '' > ‪Edward Ng‬ ‪Google..., the UHI effects in Hong Kong has been investigated extensively UHI ) effect and improve thermal by. And winter.The main cause of the heat island intensity is the temperature difference between urban and rural areas is! //Www.Epa.Gov/Green-Infrastructure/Reduce-Urban-Heat-Island-Effect '' > What is an urban area canyon effect Cross Ventilation Greenery Further reading 1 include improved,. Ago 0 order of 300-500 sp eaking, the modified land summer, resulti ng in higher night time density. On the urban area is retrieved to characterize their local effects on urban rural... High rise, high density urban housing estates in Hong Kong, 15 to 17m radius is appropriate. Paper investigates the impact of that when compared to rural environments, the UHI is. And private sectors should contribute together to minimize the UHI effects in Hong Kong, green open space is replaced. 13 014014 View the article online for updates and enhancements local effects the!: 10.1016/j.enbuild.2003.12.016 28 ] Pitiyanuwat S. Report on the urban heat island effect the indicate... Fung and Lam, 2009 to ( 1 ) differences between two fixed observatories, one heat islands Hong.

Vbit Mining Calculator, Hhms Basketball Schedule, Wild Orchid Pleat Jumpsuit, I Am Become Death Destroyer Of Worlds Quote, Love Beauty And Planet Argan Oil And Lavender Shampoo, St Louis Men's Basketball Roster,