Abstract
Human beings are adversely affected by climate extremes, pertinent to an increase in frequency and intensity of warm temperatures, eventually inducing warming on a global and regional scale. In a tropical nation like India, high summer temperature and increased moisture with the arrival of the southwest monsoon (hereafter referred to as monsoon) aggravate the sultriness of the ambient environment. Irrespective of global climate change, cities alter their climate due to urban materials' impervious surfaces and thermal properties, which upsurge moisture and temperature in urban settings. Thus, urban dwellers are peculiarly vulnerable to heat stress health hazards. Heat stress indices allow quantitative assessment of thermal stress to determine the safe limits of thermal exposure. In the present study, statistical trends in Heat Index were evaluated to analyze heat stress over 41 urban stations of southern peninsular India over the summer and monsoon season from 1969 to 2015. Results indicated that almost all stations registered a significant increase at 95% confidence level in heat stress except for an insignificant decrease at a few stations. Changepoint detection depicted an increase in heat stress initiated in the late 1990s and early years of the decade 2000 at most urban stations. Hierarchical cluster analysis partitioned data into seven spatial units. Accordingly, the highest magnitude of increase was observed over cities located in the northeastern part of the study area and the southern tip of peninsular India. The study demands attention to perilous health risks related to India's increasing heat stress casualties and the need for an indigenous thermal stress alerts system.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
References
Anderson GB, Bell ML, Peng RD (2013) Methods to calculate the heat index as an exposure metric in environmental health research. Environ Health Perspect 121(10):1111–1119
Antonopoulos VZ, Papamichail DM, Mitsiou KA (2001) Statistical and trend analysis of water quality and quantity data for the Strymon River in Greece. Hydrol Earth Syst Sci 5(4):679–691
Arnfield JA (2003) Two decades of urban climate research: a review of turbulence, exchanges of energy and water, and the urban heat island. Int J Climatol 23(1):1–26. https://doi.org/10.1002/joc.859
Bates BC, Kundzewicz ZW, Wu S, Palutikof JP (eds) (2008) Climate change and water. Technical Paper of the Intergovernmental Panel on Climate Change (IPCC) Secretariat, Geneva, 210
Bernard TE, Pourmoghani M (1999) Prediction of workplace wet bulb global temperature. Appl Occup Environ Hyg 14:126–134. https://doi.org/10.1080/104732299303296
Chattopadhyay S, Edwards DR (2016) Long-term trend analysis of precipitation and air temperature for Kentucky, United States. Climate 4(10):1–15. https://doi.org/10.3390/cli4010010
Cormack RM (1971) A review of classification. J R Stat Soc 134(3):321–367
Dai A (2006) Recent climatology, variability, and trends in global surface humidity. J Clim 19:3589–3606. https://doi.org/10.1175/JCLI3816.1
Dash SK, Jenamani RK, Kalsi SR, Panda SK (2007) Some evidence of climate change in twentieth-century India. Clim Change 85:299–321. https://doi.org/10.1007/s10584-007-9305-9
De US, Rao GSP (2004) Urban climate trends—the Indian scenario. J Indian Geophys Union 8(3):199–203
De US, Dube RK, Rao GSP (2005) Extreme weather events over India in the last 100 years. J Indian Geophys Union 9(3):173–187
Diffenbaugh NS, Pal JS, Giorgi F, Gao X (2007) Heat stress intensification in the Mediterranean climate change hotspot. Geophys Res Lett 34:1–6. https://doi.org/10.1029/2007GL030000
Dunne JP, Stouffer RJ, John JG (2013) Reductions in labor capacity from heat stress under climate warming. Nat Clim Chang 3(4):1–4. https://doi.org/10.1038/nclimate1827
Gadgil A, Dhorde A (2005) Temperature trends in twentieth-century at Pune, India. Atmos Environ 39(35):6550–6556. https://doi.org/10.1016/j.AtmosEnviron.2005.07.032
Glazer JL (2005) Management of heatstroke and heat exhaustion. Am Fam Physician 71(11):2133–2142
Gong X, Richman MB (1995) On the application of cluster analysis to growing season precipitation data in North America east of the Rockies. J Clim 8:897–931
Gosling SN, Lowe JA, McGregor GR, Pelling M, Malamud BD (2009) Associations between elevated atmospheric temperature and human mortality: a critical review of the literature. Clim Change 92(3–4):299–341
Harlan SL, Chowell G, Yang S, Petitti DB, Butler EJM, Ruddell BL, Ruddell DM (2014) Heat-related deaths in hot cities: estimates of human tolerance to high-temperature thresholds. Int J Environ Res Public Health 11:3304–3326. https://doi.org/10.3390/ijerph110303304
Hijioka YE, Linn JJ, Pereira RT, Corlett X, Cui GE, Insarov RD, Lasco E, Lindgren, Surjan A (2014) Asia. In: Climate Change 2014: Impacts adaptation, and vulnerability. Part B: Regional aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Barros VR, Field CB, DJ Dokken, MD Mastrandrea, KJ Mach, TE Bilir, M Chatterjee, KL Ebi, YO Estrada, RC Genova, B Girma, ES Kissel, AN Levy, S MacCracken, PR Mastrandrea, and LL White (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA:1327–1370
Hirsch RM, Slack JR, Smith RA (1982) Techniques of trend analysis for monthly water quality data. Water Resour Res 18:107–121. https://doi.org/10.1029/WR018i001p00107
IPCC (2012) Managing the risk of extreme events and disasters to advance climate change adaptation. In: Field CB, Barros V, Stocker TF, Qin D, Dokken DJ, Ebi KL, Mastrandrea MD, Mach KJ, Plattner GK, Allen SK, Tignor M, Midgley PM (eds) A special report of Working Groups I and II of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, p 582
Iheanacho I (2014) Can the USA National Weather Service heat index substitute for Wet Bulb Globe Temperature for heat stress exposure assessment? Graduate thesis and dissertation. The University of South Florida. http://scholarcommons.usf.edu/etd/5244 Accessed 16 Aug 2017
IPCC (2013) Summary for policymakers. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker TF, Qin D, Plattner GK, Tignor M, Allen SK, Boschung J, Nauels A, Xia Y, Bex V, Midgley PM (eds)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA
Jaswal AK, Padmakumari B, Kumar N, Kore PA (2017) Increasing trend in temperature and moisture induced heat index and its effect on human health in climate change scenario over the Indian sub-continent. J Clim Change 3:11–25
Karpouzos DK, Kavalieratou S, Babajimopoulos C (2010) Trend analysis of precipitation data in Pieria Region (Greece). Eur Water 30:31–40
Kjellstrom T, Holmer I, Lemke B (2009) Workplace heat stress, health and productivity-an increasing challenge for low and middle-income countries during climate change. Glob Health Action 2:1–6. https://doi.org/10.3402/gha.v2i0.2047
Kleerekoper L, Van Esch M, Salcedo TB (2012) How to make a city climate-proof, addressing the urban heat island effect. Resour Conserv Recycl 64:30–38. https://doi.org/10.1016/j.resconrec.2011.06.004
Kovats S, Akhtar R (2008) Climate, climate change, and human health in Asian cities. Environ Urban 20(1):165–175. https://doi.org/10.1177/0956247808089154
Lemke B, Kjellstrom T (2012) Calculating workplace WBGT from meteorological data: a tool for climate change assessment. Ind Health 50:267–278. https://doi.org/10.2486/indhealth.MS1352
Maloney SK, Forbes CF (2011) What effect will a few degrees of climate change have on human heat balance? Implications for human activity. Int J Biometeorol 55:147–160. https://doi.org/10.1007/s00484-010-0320-6
Michelozzi P, Accetta G, De Sario M, D’Ippoliti D, Marino C, Baccini M, Biggeri A, Anderson HR, Katsouyanni K, Ballester F, Bisanti L, Cadum E, Forsberg B, Forastiere F, Goodman PG, Hojs A, Kirchmayer U, Medina S, Paldy A, Schindler C, Sunyer J, Perucci CA (2009) High temperature and hospitalizations for cardiovascular and respiratory causes in 12 European cities. Am J Respir Crit Care Med 179:383–389. https://doi.org/10.1164/rccm.200802-217OC
Mohan M, Gupta A, Bhati S (2014) A modified approach to analyze thermal comfort classification. Atmos Clim Sci 4:7–19
Mooi E, Sarstedt M (2011) A concise guide to market research. Springer-Verlag, Berlin. https://doi.org/10.1007/978-3-642-12541-6_9
Pai DS, Nair SA, Ramanathan AN (2013) Long-term climatology trends of heat waves over India during the recent 50 years (1961–2010). Mausam 64(4):585–604
Partal T, Kahya E (2006) Trend analysis in Turkish precipitation data. Hydrol Process 20:2011–2026
Rajib MA, Mortuza MR, Selmi S, Ankur AK, Rahman MM (2011) Increase of heat index over Bangladesh: Impact of climate change. World Acad Sci Technol 58:402–405
Raju BMK, Rao KV, Venkateswarlu B, Rao AVMS, Rama Rao CA, Rao VUM, Bapuji Rao B, Ravi Kumar N, Dhakar R, Swapna N, Latha P (2013) Revisiting climatic classification in India: a district-level analysis. Curr Sci 105(4):492–495
Robinson PJ (2001) On the definition of a heatwave. J Appl Meteorol 40:762–775
Rohini P, Rajeevan M, Srivastava AK (2016) On the variability and increasing trends of heat waves over India. Sci Rep 6:26153. https://doi.org/10.1038/srep26153
Rothfusz LP (1990) The heat index equation (or, more than you ever wanted to know about heat index). Technical Attachment SR/SSD 90-23 National weather Service Office S. Reg Headquarters, Forth Worth
Safari B (2012) Trend analysis of the mean annual temperature in Rwanda during the last fifty-two years. J Environ Protection 3:538–551
Smoyer KE, Rainham DGC, Hewko JN (2000) Heat-stress-related mortality in five cities in Southern Ontario:1980–1996. Int J Biometeorol 44:190–197
Sneyers S (1990) On the statistical analysis of series of observations. Technical note no. 143 WMO No. 725 415 Secretariat of the World Meteorological Organization Geneva 192
Steadman RG (1979) The assessment of sultriness. Part I: a temperature-humidity index based on human physiology and clothing science. J Appl Meteorol 18:861–873
Steadman RG (1984) A universal scale of apparent temperature. J Clim Appl Meteorol 23:1674–1687
Trenberth KE, Fasullo J, Smith L (2005) Trends and variability in column-integrated atmospheric water vapor. Clim Dyn 24:741–758. https://doi.org/10.1007/s00382-005-0017-4
Unger J (1999) Comparisons of urban and rural bioclimatological conditions in the case of a central-European city. Int J Biometeorol 43:139–144. https://doi.org/10.1007/s004840050129
Willett KM, Jones PD, Gillett NP, Thorne PW (2008) Recent changes in surface humidity: development of the HadCRUH dataset. J Clim 21:5364–5383. https://doi.org/10.1175/2008JCLI2274.1
Zahid M, Rasul G (2012) Rise in summer heat index over Pakistan. Pakistan J Meteorol 6(12):85–96
Zander KK, Botzen WJ, Oppermann E, Kjellstrom T, Garnett ST (2015) Heat stress causes substantial labor productivity loss in Australia. Nat Clim Chang 5(7):647–651
Zarenistanak M, Dhorde AG, Kripalani RH (2014) Trend analysis and change point detection of annual and seasonal precipitation and temperature series over southwest Iran. J Earth Syst Sci 123(2):281–295
Zhao G, Hörmann G, Fohrer N, Zhang Z, Zhai J (2010) Streamflow trends and climate variability impacts in Poyang lake basin, China. Water Resour Manag 24:689–706. https://doi.org/10.1007/s11269-009-9465-7
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The research is funded by the Council of Scientific and Industrial Research (CSIR), New Delhi, India. The authors also express their gratitude towards the anonymous reviewers for their suggestions, which helped to improve this manuscript's quality.
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Dhorde, A.G., Desai, M.S., Dhorde, A.A. et al. Vulnerability of tropical Indian cities to augmenting heat stress during summer and monsoon season months (1969–2015). Meteorol Atmos Phys 134, 61 (2022). https://doi.org/10.1007/s00703-022-00897-3
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DOI: https://doi.org/10.1007/s00703-022-00897-3