Abstract
Urban heat poses a public health risk to the residents of megacities in developing countries because the population spends a significant amount of time outdoors to work and socialize with limited cooling resources. Understanding the drivers of outdoor comfort and heat stress in informal work settings is important to design climate-sensitive outdoor spaces and reduce heat vulnerability. We present outdoor thermal comfort perceptions (OTCPs) of people engaged in outdoor micro entrepreneurial activities in Mumbai using seasonal surveys and biometeorological observations. We propose a three-phase approach to analyze the relative importance of climatic and non-climatic variables for OTCPs. The first phase evaluates the seasonal and intra-neighborhood variation of thermal sensation votes (TSV) with respect to physiological equivalent temperature (PET) and air temperature. Second, we include physiological parameters to evaluate the seasonal and intra-neighborhood variation of overall sensation votes (OSV). Third, we consider aggregated survey responses and include behavioral and perceptual variables to determine their relative significance. We employ three linear modeling techniques to assess model performance in explaining the variability of OTCP using OSV as dependent variable. Results reveal that microclimatic parameters alone are unable to explain the variability of OTCP. Our results yield a neutral PET value (PETneutral) of 23.75 °C for Mumbai in the winter. PETneutral was higher for activities at the clothing market compared to other micro entrepreneurial activities. Acclimatization significantly improved comfort in the summer, while evaporative cooling was beneficial in the winter. Further, an ANCOVA and ordinal logistic regressions demonstrate the importance of behavioral attributes (presence in the location, expectation, beverage intake) in explaining the variance in OTCP. Our study also reveals that wind speed and humidity play an important role in shaping overall comfort in the Mumbai neighborhoods.
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Abbreviations
- AC:
-
Air conditioner
- ANCOVA:
-
Analysis of covariance
- ANOVA:
-
Analysis of variance
- ASHRAE:
-
American Society of Heating, Refrigerating and Air-Conditioning Engineers
- Clo:
-
Clothing insulation
- MBC:
-
Metabolic condition
- MCC:
-
Microclimatic condition
- MCP:
-
Microclimatic perception
- Met-:
-
Metabolic rate
- MLR:
-
Multiple linear regression
- MRT:
-
Mean radiant temperature
- OLR:
-
Ordinal logistic regression
- OSV:
-
Overall sensation vote
- OTCP:
-
Outdoor thermal comfort perception
- PCA:
-
Principal component analysis
- PET:
-
Physiologically equivalent temperature
- RH:
-
Relative humidity
- RHSV:
-
Relative humidity sensation vote
- SSV:
-
Sun sensation vote
- T a :
-
Air temperature
- TCPS:
-
Thermal Comfort Perception Survey
- T g :
-
Globe temperature
- TSV:
-
Thermal sensation vote
- UTCI:
-
Universal Thermal Climate Index
- V a :
-
Wind velocity
- VIF:
-
Variance inflation factor
- WSV:
-
Wind sensation vote
References
Aguilera AM, Escabias M, Valderrama MJ (2006) Using principal components for estimating logistic regression with high-dimensional multicollinear data. Comput Stat Data Anal 50:1905–1924. https://doi.org/10.1016/j.csda.2005.03.011
Ali SB, Patnaik S (2018) Thermal comfort in urban open spaces: objective assessment and subjective perception study in tropical city of Bhopal, India. Urban Clim 24:954–967. https://doi.org/10.1016/j.uclim.2017.11.006
Ali-Toudert F, Mayer H (2006) Numerical study on the effects of aspect ratio and orientation of an urban street canyon on outdoor thermal comfort in hot and dry climate. Build Environ 41:94–108. https://doi.org/10.1016/j.buildenv.2005.01.013
Ali-Toudert F, Mayer H (2007) Effects of asymmetry, galleries, overhanging façades and vegetation on thermal comfort in urban street canyons. Sol Energy 81:742–754. https://doi.org/10.1016/j.solener.2006.10.007
Aljawabra FF (2014) Thermal comfort in outdoor urban spaces : the hot arid climate. University of Bath
Amindeldar S, Heidari S, Khalili M (2017) The effect of personal and microclimatic variables on outdoor thermal comfort: a field study in Tehran in cold season. Sustain Cities Soc 32:153–159. https://doi.org/10.1016/j.scs.2017.03.024
Aminipouri M, Rayner D, Lindberg F, Thorsson S, Knudby AJ, Zickfeld K, Middel A, Krayenhoff ES (2019) Urban tree planting to maintain outdoor thermal comfort under climate change: the case of Vancouver’s local climate zones. Build Environ 158:226–236. https://doi.org/10.1016/j.buildenv.2019.05.022
Azhar GS, Mavalankar D, Nori-Sarma A, Rajiva A, Dutta P, Jaiswal A, Sheffield P, Knowlton K, Hess JJ, on behalf of the Ahmedabad HeatClimate Study Group (2014) Heat-related mortality in India: Excess all-cause mortality associated with the 2010 Ahmedabad heat wave. PLoS One 9. https://doi.org/10.1371/journal.pone.0091831
Banerjee S, Chattopadhyay S (2020) A meta-analytical review of outdoor thermal comfort research : applications, gaps and a framework to assess low-income settlements in Indian megacities. Urban Clim 33:100641. https://doi.org/10.1016/j.uclim.2020.100641
Banerjee S, Middel A, Chattopadhyay S (2020a) Bio-meteorological assessment of outdoor micro-entrepreneurial informal communities in extreme heat-a case of two tropical Indian megacities. EGU General Assembly 2020
Banerjee S, Middel A, Chattopadhyay S (2020b) Outdoor thermal comfort in various microentrepreneurial settings in hot humid tropical Kolkata : human biometeorological assessment of objective and subjective parameters. Sci Total Environ 721:137741. https://doi.org/10.1016/j.scitotenv.2020.137741
Baruti M, Johansson E (2018) Outdoor microclimate and people’s thermal perceptions in informal settlements of warm humid Dar es Salaam, Tanzania. In: ICUC 2018
Baruti MM, Johansson E (2020) Urbanites’ thermal perception in informal settlements of warm-humid Dar es Salaam, Tanzania. Urban Clim 31:100564. https://doi.org/10.1016/j.uclim.2019.100564
Binarti F, Koerniawan MD, Triyadi S, Utami SS, Matzarakis A (2020) A review of outdoor thermal comfort indices and neutral ranges for hot-humid regions. Urban Clim 31:100531. https://doi.org/10.1016/j.uclim.2019.100531
Błażejczyk K, Broede P, Fiala D (2010) Principles of the new Universal Thermal Climate Index (UTCI) and its application to bioclimatic research in European scale. Misc Geogr 14:91–102
Chatzidimitriou A, Yannas S (2016) Microclimate design for open spaces: ranking urban design effects on pedestrian thermal comfort in summer. Sustain Cities Soc 26:27–47. https://doi.org/10.1016/j.scs.2016.05.004
Chen L, Ng E (2012) Outdoor thermal comfort and outdoor activities: a review of research in the past decade. Cities 29:118–125. https://doi.org/10.1016/j.cities.2011.08.006
Cochran WF (1977) SamplingTechniques: Chapter 5. Sampl Tech 10
Cohen P, Shashua-Bar L, Keller R, Gil-Ad R, Yaakov Y, Lukyanov V, Bar (Kutiel) P, Tanny J, Cohen S, Potchter O (2019) Urban outdoor thermal perception in hot arid Beer Sheva, Israel: methodological and gender aspects. Build Environ 160:106169. https://doi.org/10.1016/j.buildenv.2019.106169
Colter KR, Middel AC, Martin CA (2019) Effects of natural and artificial shade on human thermal comfort in residential neighborhood parks of Phoenix, Arizona, USA. Urban For Urban Green 44:126429. https://doi.org/10.1016/j.ufug.2019.126429
de Dear R, Fountain M (1994) Field experiments on occupant comfort and office thermal environment in a hot-humid climate Center for the Built Environment. ASHRAE Trans 1994, Vol 100, Part 2
Elnabawi MH, Hamza N, Dudek S (2016) Thermal perception of outdoor urban spaces in the hot arid region of Cairo, Egypt. Sustain Cities Soc 22:136–145. https://doi.org/10.1016/j.scs.2016.02.005
Emmanuel R (2018) Performance standard for tropical outdoors: a critique of current impasse and a proposal for way forward. Urban Clim 23:250–259. https://doi.org/10.1016/j.uclim.2017.01.002
Fang Z, Lin Z, Mak CM, Niu J, Tse KT (2018) Investigation into sensitivities of factors in outdoor thermal comfort indices. Build Environ 128:129–142. https://doi.org/10.1016/j.buildenv.2017.11.028
Fang Z, Feng X, Liu J, Lin Z, Mak CM, Niu J, Tse KT, Xu X (2019) Investigation into the differences among several outdoor thermal comfort indices against field survey in subtropics. Sustain Cities Soc 44:676–690. https://doi.org/10.1016/j.scs.2018.10.022
Galindo T, Hermida MA (2018) Effects of thermophysiological and non-thermal factors on outdoor thermal perceptions: the Tomebamba Riverbanks case. Build Environ 138:235–249. https://doi.org/10.1016/j.buildenv.2018.04.024
Ghaffarianhoseini A, Berardi U, Ghaffarianhoseini A, Al-obaidi K (2019) Analyzing the thermal comfort conditions of outdoor spaces in a university campus in Kuala Lumpur , Malaysia. Sci Total Environ 666:1327–1345. https://doi.org/10.1016/j.scitotenv.2019.01.284
Gulyás Á, Unger J, Matzarakis A (2006) Assessment of the microclimatic and human comfort conditions in a complex urban environment: modelling and measurements. Build Environ 41:1713–1722. https://doi.org/10.1016/j.buildenv.2005.07.001
Hadianpour M, Mahdavinejad M, Bemanian M, Nasrollahi F (2018) Seasonal differences of subjective thermal sensation and neutral temperature in an outdoor shaded space in Tehran, Iran. Sustain Cities Soc 39:751–764. https://doi.org/10.1016/j.scs.2018.03.003
Höppe P (1999) The physiological equivalent temperature - a universal index for the biometeorological assessment of the thermal environment. Int J Biometeorol 43:71–75. https://doi.org/10.1007/s004840050118
Huang K, Yang S, Matzarakis A, Lin T (2018) Identifying outdoor thermal risk areas and evaluation of future thermal comfort concerning shading orientation in a traditional settlement. Sci Total Environ 626:567–580. https://doi.org/10.1016/j.scitotenv.2018.01.031
ISO 7726 (1998). Ergonomics of the thermal environment — instruments for measuring physical quantities. Geneva
Jacobs C, Singh T, Gorti G, Iftikhar U, Saeed S, Syed A, Abbas F, Ahmad B, Bhadwal S, Siderius C (2019) Patterns of outdoor exposure to heat in three South Asian cities. Sci Total Environ 674:264–278. https://doi.org/10.1016/j.scitotenv.2019.04.087
Jamei E, Rajagopalan P (2017) Urban development and pedestrian thermal comfort in Melbourne. Sol Energy 144:681–698. https://doi.org/10.1016/j.solener.2017.01.023
Jendritzky G, de Dear R, Havenith G (2012) UTCI-Why another thermal index? Int J Biometeorol 56:421–428. https://doi.org/10.1007/s00484-011-0513-7
Johansson E (2006) Influence of urban geometry on outdoor thermal comfort in a hot dry climate: a study in Fez, Morocco. Build Environ 41:1326–1338. https://doi.org/10.1016/j.buildenv.2005.05.022
Johansson E, Yahia MW, Arroyo I, Bengs C (2018) Outdoor thermal comfort in public space in warm-humid Guayaquil, Ecuador. Int J Biometeorol 62:387–399. https://doi.org/10.1007/s00484-017-1329-x
Kántor N, Égerházi L, Unger J (2012) Subjective estimation of thermal environment in recreational urban spaces-Part 1: investigations in Szeged, Hungary. Int J Biometeorol 56:1075–1088. https://doi.org/10.1007/s00484-012-0523-0
Kántor N, Chen L, Gál CV (2018) Human-biometeorological significance of shading in urban public spaces—summertime measurements in Pécs, Hungary. Landsc Urban Plan 170:241–255. https://doi.org/10.1016/j.landurbplan.2017.09.030
Ketterer C, Matzarakis A (2014) Human-biometeorological assessment of heat stress reduction by replanning measures in Stuttgart, Germany. Landsc Urban Plan 122:78–88. https://doi.org/10.1016/j.landurbplan.2013.11.003
Khalil HAEE, Ibrahim AK, Elgendy N, Makhlouf N (2018) Could/should improving the urban climate in informal areas of fast-growing cities be an integral part of upgrading processes? Cairo case. Urban Clim 24:63–79. https://doi.org/10.1016/j.uclim.2018.01.007
Kotharkar R, Bagade A, Agrawal A (2019) Investigating Local Climate Zones for Outdoor Thermal Comfort Assessment in an Indian City. Geogr Pannonica 23:318–328. https://doi.org/10.5937/gp23-24251
Krüger EL, Costa T (2019) Interferences of urban form on human thermal perception. Sci Total Environ 653:1067–1076. https://doi.org/10.1016/j.scitotenv.2018.11.027
Krüger EL, Tamura CA, Bröde P, Schweiker M, Wagner A (2017) Short- and long-term acclimatization in outdoor spaces: exposure time, seasonal and heatwave adaptation effects. Build Environ 116:17–29. https://doi.org/10.1016/j.buildenv.2017.02.001
Lai D, Liu W, Gan T, Liu K, Chen Q (2019) A review of mitigating strategies to improve the thermal environment and thermal comfort in urban outdoor spaces. Sci Total Environ 661:337–353. https://doi.org/10.1016/j.scitotenv.2019.01.062
Li K, Zhang Y, Zhao L (2016) Outdoor thermal comfort and activities in the urban residential community in a humid subtropical area of China. Energy Build 133:498–511. https://doi.org/10.1016/j.enbuild.2016.10.013
Lin TP (2009) Thermal perception, adaptation and attendance in a public square in hot and humid regions. Build Environ 44:2017–2026. https://doi.org/10.1016/j.buildenv.2009.02.004
Lin TP, Matzarakis A (2008) Tourism climate and thermal comfort in Sun Moon Lake, Taiwan. Int J Biometeorol 52:281–290. https://doi.org/10.1007/s00484-007-0122-7
Liu W, Zhang Y, Deng Q (2016) The effects of urban microclimate on outdoor thermal sensation and neutral temperature in hot-summer and cold-winter climate. Energy Build 128:190–197. https://doi.org/10.1016/j.enbuild.2016.06.086
Liu H, Wu Y, Lei D, Li B (2018) Gender differences in physiological and psychological responses to the thermal environment with varying clothing ensembles. Build Environ 141:45–54. https://doi.org/10.1016/j.buildenv.2018.05.040
Lobaccaro G, Acero JA (2015) Comparative analysis of green actions to improve outdoor thermal comfort inside typical urban street canyons. Urban Clim 14:251–267. https://doi.org/10.1016/j.uclim.2015.10.002
Manavvi S, Rajasekar E (2020) Semantics of outdoor thermal comfort in religious squares of composite climate: New Delhi, India. Int J Biometeorol 64:253–264. https://doi.org/10.1007/s00484-019-01708-y
Martins TAL, Adolphe L, Bonhomme M, Bonneaud F, Faraut S, Ginestet S, Michel C, Guyard W (2016) Impact of Urban Cool Island measures on outdoor climate and pedestrian comfort: Simulations for a new district of Toulouse, France. Sustain Cities Soc 26:9–26. https://doi.org/10.1016/j.scs.2016.05.003
Matzarakis A, Mayer H (1996) Another kind of environmental stress: thermal stress.pdf. 7–10
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
Matzarakis A, Rutz F, Mayer H (2010) Modelling radiation fluxes in simple and complex environments : basics of the RayMan model. Int J Biometeorol 54:131–139. https://doi.org/10.1007/s00484-009-0261-0
Mayer H, Höppe P (1987) Thermal comfort of man in different urban environments. Theor Appl Climatol 38:43–49
Middel A, Krayenhoff ES (2019) Micrometeorological determinants of pedestrian thermal exposure during record-breaking heat in Tempe, Arizona: Introducing the MaRTy observational platform. Sci Total Environ 687:137–151. https://doi.org/10.1016/j.scitotenv.2019.06.085
Middel A, Häb K, Brazel AJ, Martin CA, Guhathakurta S (2014) Impact of urban form and design on mid-afternoon microclimate in Phoenix Local Climate Zones. Landsc Urban Plan 122:16–28. https://doi.org/10.1016/j.landurbplan.2013.11.004
Middel A, Chhetri N, Quay R (2015) Urban forestry and cool roofs: assessment of heat mitigation strategies in Phoenix residential neighborhoods. Urban For Urban Green 14:178–186. https://doi.org/10.1016/j.ufug.2014.09.010
Middel A, Selover N, Hagen B, Chhetri N (2016) Impact of shade on outdoor thermal comfort—a seasonal field study in Tempe, Arizona. Int J Biometeorol 60:1849–1861. https://doi.org/10.1007/s00484-016-1172-5
Middel A, Turner VK, Schneider FA, Zhang Y, Stiller M (2020) Solar reflective pavements-a policy panacea to heat mitigation? Environ Res Lett 15. https://doi.org/10.1088/1748-9326/ab87d4
Morakinyo TE, Lam YF (2016) Simulation study on the impact of tree-configuration, planting pattern and wind condition on street-canyon’s micro-climate and thermal comfort. Build Environ 103:262–275. https://doi.org/10.1016/j.buildenv.2016.04.025
Morakinyo TE, Kong L, Lau KKL, Yuan C, Ng E (2017) A study on the impact of shadow-cast and tree species on in-canyon and neighborhood’s thermal comfort. Build Environ 115:1–17. https://doi.org/10.1016/j.buildenv.2017.01.005
Nasrollahi N, Hatami M, Khastar SR, Taleghani M (2017a) Numerical evaluation of thermal comfort in traditional courtyards to develop new microclimate design in a hot and dry climate. Sustain Cities Soc 35:449–467. https://doi.org/10.1016/j.scs.2017.08.017
Nasrollahi N, Hatami Z, Taleghani M (2017b) Development of outdoor thermal comfort model for tourists in urban historical areas; a case study in Isfahan. Build Environ 125:356–372. https://doi.org/10.1016/j.buildenv.2017.09.006
Ndetto EL, Matzarakis A (2017) Assessment of human thermal perception in the hot-humid climate of Dar es Salaam, Tanzania. Int J Biometeorol 61:69–85. https://doi.org/10.1007/s00484-016-1192-1
Ng E, Cheng V (2012) Urban human thermal comfort in hot and humid Hong Kong. Energy Build 55:51–65. https://doi.org/10.1016/j.enbuild.2011.09.025
Nicol JF, Raja IA, Allaudin A, Jamy GN (1999) Climatic variations in comfortable temperatures: the Pakistan projects. Energy Build 30:261–279. https://doi.org/10.1016/S0378-7788(99)00011-0
Nikolopoulou M, Steemers K (2003) Thermal comfort and psychological adaptation as a guide for designing urban spaces. Energy Build 35:95–101
Nikolopoulou M, Baker N, Steemers K (2001) Thermal comfort in outdoor urban spaces : understanding the human parameter. Sol Energy 70:227–235. https://doi.org/10.1016/S0038-092X(00)00093-1
Paramita B, Matzarakis A (2019) Urban morphology aspects on microclimate in a hot and humid climate. Geogr Pannonica 23:398–410
Park CY, Lee DK, Krayenhoff ES, Heo HK, Ahn S, Asawa T, Murakami A, Kim HG (2018) A multilayer mean radiant temperature model for pedestrians in a street canyon with trees. Build Environ 141:298–309. https://doi.org/10.1016/j.buildenv.2018.05.058
Potchter O, Cohen P, Lin T, Matzarakis A (2018) Outdoor human thermal perception in various climates : a comprehensive review of approaches, methods and quantification. Sci Total Environ 631–632:390–406. https://doi.org/10.1016/j.scitotenv.2018.02.276
Salata F, Golasi I, de Lieto VR, de Lieto VA (2016) Outdoor thermal comfort in the Mediterranean area. A transversal study in Rome, Italy. Build Environ 96:46–61. https://doi.org/10.1016/j.buildenv.2015.11.023
Sharmin T, Steemers K, Matzarakis A (2015) Analysis of microclimatic diversity and outdoor thermal comfort perceptions in the tropical megacity Dhaka, Bangladesh. Build Environ 94:734–750. https://doi.org/10.1016/j.buildenv.2015.10.007
Sharmin T, Steemers K, Matzarakis A (2017) Microclimatic modelling in assessing the impact of urban geometry on urban thermal environment. Sustain Cities Soc 34:293–308. https://doi.org/10.1016/j.scs.2017.07.006
Tablada de la Torre, A, Verschure H (2006) Shape of new residential buildings in the historical centre of Old Havana to favour natural ventilation and thermal comfort
Tablada A, De Troyer F, Blocken B et al (2009) On natural ventilation and thermal comfort in compact urban environments - the Old Havana case. Build Environ 44:1943–1958. https://doi.org/10.1016/j.buildenv.2009.01.008
Taleghani M (2018) Outdoor thermal comfort by different heat mitigation strategies- a review. Renew Sust Energ Rev 81:2011–2018. https://doi.org/10.1016/j.rser.2017.06.010
Taleghani M, Berardi U (2018) The effect of pavement characteristics on pedestrians’ thermal comfort in Toronto. Urban Clim 24:449–459. https://doi.org/10.1016/j.uclim.2017.05.007
Taleghani M, Kleerekoper L, Tenpierik M, Van Den Dobbelsteen A (2015) Outdoor thermal comfort within five different urban forms in the Netherlands. Build Environ 83:65–78. https://doi.org/10.1016/j.buildenv.2014.03.014
Thorsson S, Lindberg F, Eliasson I, Holmer B (2007) Different methods for estimating the mean radiant temperature in an outdoor urban setting. Int J Climatol 27:1983–1993. https://doi.org/10.1002/joc
Tong S, Wong NH, Jusuf SK, Tan CL, Wong HF, Ignatius M, Tan E (2018) Study on correlation between air temperature and urban morphology parameters in built environment in northern China. Build Environ 127:239–249. https://doi.org/10.1016/j.buildenv.2017.11.013
Tseliou A, Tsiros IX, Nikolopoulou M (2017) Seasonal differences in thermal sensation in the outdoor urban environment of Mediterranean climates – the example of Athens, Greece. Int J Biometeorol 61:1191–1208. https://doi.org/10.1007/s00484-016-1298-5
Tsitoura M, Michailidou M, Tsoutsos T (2017) A bioclimatic outdoor design tool in urban open space design. Energy Build 153:368–381. https://doi.org/10.1016/j.enbuild.2017.07.079
Tung CH, Chen CP, Tsai KT, Kántor N, Hwang RL, Matzarakis A, Lin TP (2014) Outdoor thermal comfort characteristics in the hot and humid region from a gender perspective. Int J Biometeorol 58:1927–1939. https://doi.org/10.1007/s00484-014-0795-7
Wang Y, de Groot R, Bakker F, Wörtche H, Leemans R (2017) Thermal comfort in urban green spaces: a survey on a Dutch university campus. Int J Biometeorol 61:87–101. https://doi.org/10.1007/s00484-016-1193-0
Yahia MW (2012) Urban microclimate and thermal comfort in outdoor spaces in hot dry Damascus. Lund University
Yahia MW, Johansson E (2013) Evaluating the behaviour of different thermal indices by investigating various outdoor urban environments in the hot dry city of Damascus. Syria Int J Biometeorol 57:615–630. https://doi.org/10.1007/s00484-012-0589-8
Yahia MW, Johansson E (2014) Landscape interventions in improving thermal comfort in the hot dry city of Damascus, Syria-the example of residential spaces with detached buildings. Landsc Urban Plan 125:1–16. https://doi.org/10.1016/j.landurbplan.2014.01.014
Yang SR, Lin TP (2016) An integrated outdoor spaces design procedure to relieve heat stress in hot and humid regions. Build Environ 99:149–160. https://doi.org/10.1016/j.buildenv.2016.01.001
Zhao Q, Sailor DJ, Wentz EA (2018) Impact of tree locations and arrangements on outdoor microclimates and human thermal comfort in an urban residential environment. Urban For Urban Green 32:81–91. https://doi.org/10.1016/j.ufug.2018.03.022
Funding
This research is funded by Building Energy Efficiency Higher and Advanced Network (BHAVAN) Fellowship from Indo-US Science and Technology Forum (IUSSTF), an autonomous bilateral organization, jointly funded by Department of Science and Technology, Government of India and US Department of State. This work is also part of an ongoing Ph.D. research funded by Ministry of Human Resource Development (MHRD), Government of India.
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Banerjee, S., Middel, A. & Chattopadhyay, S. A regression-based three-phase approach to assess outdoor thermal comfort in informal micro-entrepreneurial settings in tropical Mumbai. Int J Biometeorol 66, 313–329 (2022). https://doi.org/10.1007/s00484-021-02136-7
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DOI: https://doi.org/10.1007/s00484-021-02136-7