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Human Outdoor Thermal Comfort Assessment in a Tropical Region: A Case Study

  • Christian A. Njoku
  • Mojolaoluwa T. DaramolaEmail author
Original Article
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Abstract

The thermal environment where human beings dwell is vital to the proper functioning of the human body system. This study assesses the outdoor thermal comfort conditions of five southwestern states of Nigeria over a 30-year period using the Temperature–Humidity Index (THI) and Physiological Equivalent Temperature (PET) indices. The monthly and seasonal variation of thermal sensation levels were assessed as well as the frequency of occurrence of each thermal sensation category for each of the stations considered. The prominent thermal sensation levels for each of the station were also ascertained. Results from the study revealed that thermal conditions deteriorated between 0900 and 1500 local standard time (LST) and resulted in higher levels of thermal stress. Thermal conditions were observed to vary seasonally, with increased thermal stress levels occurring during the transition to wet months (TWS) and dry months (DM), while thermal comfort conditions improved the most during the little dry season (LDS). Abeokuta was noted to be the station with the highest level of thermal discomfort when compared with other stations. Temperature was observed to be the highest contributor to thermal conditions; this, therefore implies that, with the increasing regional mean temperature, bioclimatic condition information is imperative in urban planning.

Keywords

Thermal comfort Thermal stress PET THI 
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Notes

Compliance with Ethical Standards

Conflict of interest

The authors declare that there is no conflict of interests regarding the publication of this paper.

References

  1. Abdel-Ghany AM, Al-Helal IM, Shady MR (2013) Human thermal comfort and heat stress in an outdoor urban arid environment: a case study. Adv Meteorol.  https://doi.org/10.1155/2013/693541 (Article ID 693541)
  2. Adefisan EA, Gbuyiro SO, Omotosho JB (2007) Development of irrigation requirements and water scheduling model for West Africa. Agric J 2:577–582Google Scholar
  3. Almeida SP, Casimiro E, Calheiros J (2010) Effects of apparent temperature on daily mortality in Lisbon and Oporto, Portugal. Environ Health 9:12.  https://doi.org/10.1186/1476-069X-9-12 Google Scholar
  4. Andrade H, Alcoforado MJ (2008) Microclimatic variation of thermal comfort in a district of Lisbon (Telheiras) at night. Theor Appl Climatol 92:225–237.  https://doi.org/10.1007/s00704-007-0321-5 Google Scholar
  5. ASHRAE (2004) Thermal environmental conditions for human occupancy. ANSI/ASHRAE Standard 55-2004, Atlanta: American Society of Heating, refrigerating and air-conditioning engineers, pp 2–3Google Scholar
  6. Ayoade J (1978) Spatial and seasonal patterns of physiologic comfort in Nigeria. Theor Appl Climatol 26:319–337.  https://doi.org/10.1007/BF02243235 Google Scholar
  7. Balogun IA, Balogun AA (2014) Urban heat island and bioclimatological conditions in a hot-humid tropical city: the example of Akure, Nigeria. J Geogr Soc Berlin 145:1–2Google Scholar
  8. Balogun IA, Daramola MT (2018) The impact of urban green areas on the surface thermal environment of a tropical city: a case study of Ibadan, Nigeria. Spat Inf Res.  https://doi.org/10.1007/s41324-018-0219-6
  9. Bleta A, Nastos PT, Matzarakis A (2014) Assessment of bioclimatic conditions on Crete Island, Greece. Reg Environ Change 14:1967–1981.  https://doi.org/10.1007/s10113-013-0530-7 Google Scholar
  10. Boregowda SC, Choate RE, Handy R (2012) Entropy generation analysis of human thermal stress responses. International Scholarly Research Notices, Thermodynamics.  https://doi.org/10.5402/2012/830103 (Article ID 830103)
  11. Charalampopoulos I, Kiokakis L, Chronopoulou-Sereli A, Kannavou A (2006) Bioclimatic performance of several sites which differ on their green coverage in Athens, Greece. In: 6th international conference on urban climate (ICUC-6), Götenborg, Sweden, pp 802–805Google Scholar
  12. Charalampopoulos I, Tsiros I, Chronopoulou-Sereli A, Matzarakis A (2013) Analysis of thermal bioclimate in various urban configurations in Athens, Greece. Urban Ecosyst 16:217–233Google Scholar
  13. Chen A, Yao XA, Sun R, Chen L (2014) Effect of urban green patterns on surface urban cool islands and its seasonal variations. Urban For Urban Green. http://dx.doi.org/10.1016/j.ufug.2014.07.006
  14. Danca P, Vartires A, Dogeanu A (2016) An overview of current methods for thermal comfort assessment in vehicle cabin. Energy Procedia 85:162–169.  https://doi.org/10.1016/j.egypro.2015.12.322 Google Scholar
  15. Daneshvar MRM, Bagherzadeh A, Tavousi T (2013) Assessment of bioclimatic comfort conditions based on physiologically equivalent temperature (PET) using the RayMan model in Iran. Cent Eur J Geosci 5(1):53–60Google Scholar
  16. Daramola MT, Eresanya EO (2017) Land surface temperature analysis over Akure. J Environ Earth Sci 7(5):97–105Google Scholar
  17. Daramola MT, Eresanya EO, Erhabor SC (2017) Analysis of rainfall and temperature over climatic. Zones in Nigeria. J Geogr Environ Earth Sci Int 11:1–14.  https://doi.org/10.9734/JGEESI/2017/35304 Google Scholar
  18. Daramola MT, Eresanya EO, Ishola KA (2018) Assessment of the thermal response of variations in land surface around an urban area. Model Earth syst Environ.  https://doi.org/10.1007/s40808-018-0463-8
  19. Deosathali V (1999) Assessment of impact of urbanization on climate: an application of bio-climatic index. Atmos Environ 33:4125–4133.  https://doi.org/10.1016/S1352-2310(99).00154-5 Google Scholar
  20. Dewan AM, Corner RJ (2014) Impact of land use and land cover changes on urban land surface temperature. In: Dewan A, Corner R (eds) Dhaka megacity: geospatial perspectives on urbanization, environment and health, Springer, New York.  https://doi.org/10.1007/978-94-007-6735-5_12
  21. Dewan AM, Kabir H, Nahar K (2012) Urbanisation and environmental degradation in Dhaka Metropolitan Area of Bangladesh. Int J Environ Sustainab Dev 11(2):118–147Google Scholar
  22. Djongyang N, Tchinda R, Njomo D (2010) Thermal comfort: a review paper. Renew Sust Energ Rev 14:2626–2640.  https://doi.org/10.1016/j.rser.2010.07.040 Google Scholar
  23. Dou Y (2014) The influence of urban planning on urban thermal comfort. Master Thesis, Wageningen University, the NetherlandsGoogle Scholar
  24. Eludoyin OM (2014) A Perspective of the diurnal aspect of thermal comfort in Nigeria. Atmos Clim Sci 4:696–709.  https://doi.org/10.4236/acs.2014.44063 Google Scholar
  25. Emmanuel R (2005) Thermal comfort implications of urbanization in a warm-humid city: the Colombo Metropolitan Region (CMR), Sri Lanka. Build Environ 40:1591–1601.  https://doi.org/10.1016/j.buildenv.2004.12.004 Google Scholar
  26. Esmaili R, Ghalhari F (2014) An assessment of bioclimatic conditions for tourists: case study of Mashhad, Iran. Atmos Clim Sci 4:137–146Google Scholar
  27. Estoque RC, Murayama Y, Myint SW (2016) Effects of landscape composition and pattern on land surface temperature: an urban heat island study in the megacities of Southeast Asia. Sci Tot Environ. http://dx.doi.org/10.1016/j.scitotenv.2016.10.195
  28. Feyisa GL, Dons K, Meilby H (2014) Efficiency of parks in mitigating urban heat island effect: an example from Addis Ababa. Landsc Urban Plann 123:87–95.  https://doi.org/10.1016/j.landurbplan.2013.12.008 Google Scholar
  29. Giannaros TM, Melas D, Daglis IA, Keramitsoglou I (2014) Development of an operational modelling system for urban heat islands: an application to Athens, Greece. Nat Hazards Earth Syst Sci 14:347–358.  https://doi.org/10.5194/nhess-14-347-2014 Google Scholar
  30. Hamoodi MN, Corner R, Dewan A (2017) Thermophysical behaviour of LULC surfaces and their effect on the urban thermal environment. J Spat Sci.  https://doi.org/10.1080/14498596.2017.1386598
  31. Hanafi A, Dastjerdi JK (2014) An Assessment of bioclimatic conditions for tourists in the Southwest of Iran. BEPLS 3:109–118Google Scholar
  32. Herrmann J, Matzarakis A (2010) Influence of mean radiant temperature on thermal comfort of humans in idealized urban environments. In: Matzarakis A, Mayer H, Chmielewski FM (eds) Proceedings of the 7th conference on biometeorology. Ber. Meteorol. Inst. Univ. Freiburg 20:523–528Google Scholar
  33. Imhoff ML, Zhang P, Wolfe RE, Bounoua L (2010) Remote sensing of urban heat island effect across biomes in the continental USA. Remote Sens Environ 114(3):504–513Google Scholar
  34. Ishola KA, Okogbue EC, Adeyeri OE (2016) Dynamics of surface urban biophysical compositions and its impact on land surface thermal field. Model Earth Syst Environ 2:208.  https://doi.org/10.1007/s4080-8-016-0265-9
  35. Ishola KA, Okogbue EC, Adeyeri OE (2016b) A quantitative assessment of surface urban heat islands using satellite multitemporal data over abeokuta. Int J Atmos Sci, Nigeria.  https://doi.org/10.1155/2016/3170789 Google Scholar
  36. Johansson E (2006) Influence of urban geometry on outdoor thermal comfort in a hot dry climate: a study area in Fez, Morocco. Build Environ 41:1326–1338.  https://doi.org/10.1016/j.buildenv.2005.05.022 Google Scholar
  37. Kalkstein AJ, Sheridan SC (2007) The Social impacts of the heat-health watch/warning system in phoenix, Arizona: assessing the perceived risk and response of the public. Int J Biometeorol 52:43–55.  https://doi.org/10.1007/s00484-006-0073-4 Google Scholar
  38. Lenzuni P, Freda D, Del Guadio M (2009) Classification of thermal environments for comfort assessment. Ann Occup Hyg 53:325–332.  https://doi.org/10.1093/annhyg/mep012 Google Scholar
  39. Li W, Cao Q, Lang K, Wu J (2017) Linking potential heat source and sink to urban heat island: Heterogeneous effects of landscape pattern on land surface temperature. Sci Tot Environ. http://dx.doi.org/10.1016/j.scitotenv.2017.01.191
  40. Matzarakis A, Amelung B (2008) Physiological equivalent temperature as indicator for impacts of climate change on thermal comfort of humans. In: Thomson MC, García Herrera R, Beniston M (eds) Seasonal forecasts, climatic change and human health. Springer, New York, pp 161–172Google Scholar
  41. Matzarakis A, Nastos PT (2011) Analysis of tourism potential for Crete Island, Greece. Global Nest J 13:141–149Google Scholar
  42. Matzarakis A, Mayer H, Iziomon MG (1999) Applications of a universal thermal index: physiological equivalent temperature. Int J Biometeorol 43:76–84.  https://doi.org/10.1007/s004840050119 Google Scholar
  43. Matzarakis A, Rutz F, Mayer H (2007) Modelling radiation fluxes in simple and complex environments—application of the RayMan model. Int J Biometeorol 51:323–334.  https://doi.org/10.1007/s00484-006-0061-8 Google Scholar
  44. Meng Q, Zhang L, Sun Z, Meng F, Wang L, Sun Y (2018) Characterizing spatial and temporal trends of surface urban heat island effect in an urban main built-up area: a 12-year case study in Beijing, China. Remote Sens Environ 204:826–837Google Scholar
  45. Michelozzi P, Kirchmayer U, Katsouyanni K, Biggeri A, McGregor G, Menne B, Kassomenos P, Anderson HR, Baccini M, Accetta G, Analytis A, Kosatsky T (2007) Assessment and prevention of acute health effects of weather conditions in Europe, the PHEWE project: background, objectives, design. Environ Health 6:12.  https://doi.org/10.1186/1476-069X-6-12 Google Scholar
  46. Morakinyo TE, Lau KK-L, Ren C, Ng E (2018) Performance of Hong Kong’s common trees species for outdoor temperature regulation, thermal comfort and energy saving. Build Environ 137:157–170.  https://doi.org/10.1016/j.buildenv.2018.04.012 Google Scholar
  47. Morris KI, Chan A, Morris KJK, Ooi MCG, Oozeer MY, Abakr YA, Nadzir MSM, Mohammed IY, Al-Qrimli HF (2017) Impact of urbanization level on the interactions of urban area, the urban climate, and human thermal comfort. Appl Geogr 79:50–72Google Scholar
  48. Mushore TD, Mutanga O, Odindi J, Dube T (2017) Determining extreme heat vulnerability of Harare Metropolitan City using multispectral remote sensing and socio-economic data. J Spat Sci. http://dx.doi.org/10.1080/14498596.2017.1290558
  49. Nastos PT, Matzarakis A (2012) The effect of air temperature and human thermal indices on mortality in Athens, Greece. Theor Appl Climatol 108:591–599.  https://doi.org/10.1007/s00704-011-0555-0 Google Scholar
  50. Nastos PT, Matzarakis A (2013) Human bioclimatic conditions, trends, and variability in the athens university campus, Greece. Adv Meteorol. http://dx.doi.org/10.1155/2013/976510
  51. Ndetto EL, Matzarakis A (2013) Basic analysis of climate and urban bioclimate of Dar es Salaam, Tanzania. Theor Appl Climatol 114:213–226.  https://doi.org/10.1007/s00704-012-0828-2 Google Scholar
  52. Nieuwolt S (1998) Tropical climatology, 2nd edn. Wiley, New YorkGoogle Scholar
  53. Odekunle TO, Andrew O, Aremu SO (2008) Towards a wetter Sudano-Sahelian ecological zone in twenty-first century Nigeria. Weather 63(3):66–70Google Scholar
  54. Ogunjobi KO, Daramola MT, Akinsanola AA (2018) Estimation of surface energy fluxes from remotely sensed data over Akure, Nigeria. Spat Inf Res 26(1):77–89.  https://doi.org/10.1007/s41324-017-0149-8 Google Scholar
  55. Ogunsote OO, Prucnal-Ogunsote B (2002) Defining climatic zones for architectural design in Nigeria: a systematic delineation. J Environ Technol 1:1–14Google Scholar
  56. Olaniran O (1982) The physiological climate of Ilorin, Nigeria. Theor Appl Climatol 31:287–299.  https://doi.org/10.1007/BF02278298 Google Scholar
  57. Oliveira S, Andrade H (2007) An initial assessment of the bioclimatic comfort in an outdoor public space in Lisbon. Int J Biometeorol 52:69–84.  https://doi.org/10.1007/s00484-007-0100-0 Google Scholar
  58. Omonijo AG (2017) Assessing seasonal variations in urban thermal comfort and potential health risks using physiologically equivalent temperature: a case of Ibadan. Urban Clim, Nigeria.  https://doi.org/10.1016/j.uclim.2017.05.006 Google Scholar
  59. Omonijo AG, Matzarakis A (2011) Climate and bioclimate analysis of Ondo State. Meteorol Z 20:531–539.  https://doi.org/10.1127/0941-2948/2011/0268 Google Scholar
  60. Omonijo AG, Adeofun CO, Oguntoke O, Matzarakis A (2013) Relevance of thermal environment to human health: a case study of Ondo State, Nigeria. Theor Appl Climatol 113:205–212.  https://doi.org/10.1007/s00704-012-0777-9 Google Scholar
  61. Peng J, Xie P, Liu Y, Ma J (2016) Urban thermal environment dynamics and associated landscape pattern factors: a case study in the Beijing metropolitan region. Remote Sens Environ 173:145–155Google Scholar
  62. Qingzu L, Caihua Y, Yonghong L et al (2014) Remote sensing study on the impact of urban green space on surrounding thermal environment Taking Beijing as an example. J Ecol Environ 2:252–261Google Scholar
  63. Salata F, Golasi I, de Lieto Vollaro R, de Lieto Vollaro A (2016) Outdoor thermal comfort in the Mediterranean area. A transversal study in Rome. Italy. Build Environ 96:46–61Google Scholar
  64. Salata F, Golasi I, Petitti D, Vollaro E de Lieto, Coppi M, Vollaro A de Lieto (2017) Relating microclimate, human thermal comfort and health during heat waves: an analysis of heat island mitigation strategies through a case study in an urban outdoor environment. Sustainab Cities Soc. http://dx.doi.org/10.1016/j.scs.2017.01.006
  65. Santamouris M, Synnefa A, Karlessi T (2011) Using advanced cool materials in the urban built environment to mitigate heat islands and improve thermal comfort conditions. Sol Energy 85(12):3085–3102Google Scholar
  66. Schwartz J, Samet JM, Patz JA (2004) Hospital admissions for heart disease: the effects of temperature and humidity. Epidemiology 15:755–761.  https://doi.org/10.1097/01.ede.0000134875.15919.0f Google Scholar
  67. Seto KC, Sánchez-Rodríguez R, Fragkias M (2010) The new geography of contemporary urbanization and the environment. Annu Rev Environ Resour 35:167–194Google Scholar
  68. Song J, Du S, Feng X, Guo L (2014) The relationships between landscape compositions and land surface temperature: quantifying their resolution sensitivity with spatial regression models. Landsc Urban Plan 123:145–157Google Scholar
  69. Svensson M, Eliasson I (2002) Diurnal air temperatures in built-up areas in relation to urban planning. Landsc Urban Plan 61:37–54.  https://doi.org/10.1016/S0169-2046(02)00076-2 Google Scholar
  70. Thom EC (1959) The Discomfort Index. Weatherwise 12:57–60.  https://doi.org/10.1080/00431672.1959.9926960 Google Scholar
  71. Thorsson S, Honjo T, Lindberg F, Eliasson I, Lim EM (2007) Thermal comfort and outdoor activity in Japanese urban public places. Environ Behav 39:660–684.  https://doi.org/10.1177/0013916506294937 Google Scholar
  72. United Nations, Department of Economic and Social Affairs, Population Division (2012) World Urbanization Prospects, the 2011 revision: highlights. United Nations, New York, pp 319–330Google Scholar
  73. Voogt JA, Oke TR (2003) Thermal remote sensing of urban climates. Remote Sens Environ 86(3):370–384Google Scholar
  74. Xiao XD, Dong L, Yan H, Yang N, Xiong Y (2018) The influence of the spatial characteristics of urban green space on the urban heat island effect in Suzhou Industrial Park. Sustainab Cities Soc 40:428–439Google Scholar
  75. Zhou W, Wang J, Cadenasso ML (2017) Effects of the spatial configuration of trees on urban heat mitigation: a comparative study. Remote Sens Environ 195:1–12Google Scholar

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© King Abdulaziz University and Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Applied Meteorological ServiceNigerian Meteorological AgencyAbujaNigeria
  2. 2.Department of Meteorology and Climate ScienceFederal University of TechnologyAkureNigeria

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