Share This Article:

Changes in Temperatures in Okayama Area Compared with Different Urbanization Areas, Japan

Abstract Full-Text HTML Download Download as PDF (Size:246KB) PP. 162-167
DOI: 10.4236/jep.2011.22018    4,540 Downloads   8,585 Views   Citations

ABSTRACT

To investigate the changes in temperatures in Okayama area compared with different levels of three urbanization areas such as Tsuyama, Tokyo areas and Hachijo island in Japan. Data of temperatures in Okayama (1891-2009), Tsuyama (1943-2009), Tokyo areas (1876-2009) and Hachijo Island (1907-2009) in Japan was obtained from Japan Meteorological Agency. Changes in temperatures in 4 areas in Japan were analyzed and compared. By using data from 1943 to 2009, some parameters of temperatures were significantly correlated with years. The change in parameters of temperatures in Hachijo Island was calmest among 4 areas. The changes in mean temperature in August and in a year in Okayama area for 50 years were the highest (August: 1.55?C, Year: 2.05?C) among 4 areas. In addition, correlation coefficient rate between years and the number of days over 35?C in August in Okayama area was highest (r = 0.407, p = 0.0037). Parameters of temperatures were gradually increased with years in Okayama area, especially in recent years. However, those associations were not clearly noted in Hachijo Island. In conclusion, global warming in Okayama might be accelerated more rapidly than that in Tokyo area in recent 50 years.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

N. Sakano, N. Miyatake, S. Murakami, T. Suzue, T. Hirao and K. Ogino, "Changes in Temperatures in Okayama Area Compared with Different Urbanization Areas, Japan," Journal of Environmental Protection, Vol. 2 No. 2, 2011, pp. 162-167. doi: 10.4236/jep.2011.22018.

References

[1] IPCC, “Climate Change 2007, Fourth Assessment Report of the Intergovenmental Panel on Climate Change (IPCC),” Cambridge University Press, Cambridge, 2007.
[2] J. Tan, L. S. Kalkstein, J. Huang, S. Lin, H. Yin and D. Shao, “An Operational Heat/Health Warning System in Shanghai,” International Journal of Biometeorology, Vol. 48, No. 3, 2004, pp. 157-162. doi:10.1007/s00484-003-0193-z
[3] C. Sch?r, P. L. Vidale, D. Lüthi, C. Frei, C. H?berli, M. A. Liniger and C. Appenzeller, “The Role of Increasing Temperature Variability in European Summer Heatwaves,” Nature, Vol. 427, No. 6972, 2004, pp. 332- 336.
[4] P. A. Stott, D. A. Stone and M. R. Allen, “Human Contribution to the European Heatwave of 2003,” Nature, Vol. 432, No. 7017, 2004, pp. 610-614. doi:10.1038/nature03089
[5] K. E. Smoyer, “A Comparative Analysis of Heat Waves and Associated Mortality in St. Louis, Missouri – 1980 and 1995,” International Journal of Biometeorology, Vol. 42, No. 1, 1998, pp. 44-50. doi:10.1007/s004840050082
[6] W. Buermann, B. R. Lintner, C. D. Koven, A. Angert, J. E. Pinzon, C. J. Tucker, et al., “The Changing Carbon Cycle at Mauna Loa Observatory,” Proceedings of the National Academy of Sciences USA, Vol. 104, No. 11, 2007, pp. 4249-4254. doi:10.1073/pnas.0611224104
[7] D. Lüthi, M. L. Floch, B. Bereiter, T. Blunier, J. M. Barnola, U. Siegenthaler, D. Raynaud, J. Jouzel, H. Fischer, K. Kawamura and T. F. Stocker, “High-Resolution Carbon Dioxide Concentration Record 650 000- 800 000 years before Present,” Nature, Vol. 453, No. 7193, 2008, pp. 379-382.
[8] C. Sch?r and G. Jendritzky, “Climate Change: Hot News from Summer 2003,” Nature, Vol. 432, No. 7017, 2004, pp. 559-560.
[9] A. Haines and J. A. Patz, “Health Effects of Climate Change,” JAMA, Vol. 291, No. 1, 2004, pp. 99-103. doi:10.1001/jama.291.1.99
[10] C. Aniello, K. Morgan, A. Busbey and L. Newland, “Mapping Micro-Urban Heat Islands Using LANDSAT TM and a GIS,” Computer Geosciences, Vol. 21, No. 8, 1995, pp. 965-969. doi:10.1016/0098-3004(95)00033-5
[11] N. Sakano, N. Miyatake, T. Suzue, S. Suna, T. Hirao and K. Ogino, “The Relation between High Temperatures and Ambulance Transports in Okayama City, Japan,”Journal of Preventive Medicine, (in Japanese), (in press).
[12] S. Huang, M. Taniguchi, M. Yamano and C. H. Wang, “Detecting Urbanization Effects on Surface and Subsurface Thermal Environment ? a Case Study of Osaka,” Science of the Total Environment, Vol. 407, No. 9, 2009, pp. 3142-3152. doi:10.1016/j.scitotenv.2008.04.019
[13] M. Taniguchi, W. C. Burnett and G. D. Ness, “Integrated Research on Subsurface Environments in Asian Urban Areas,” Science of the Total Environment, Vol. 404, No. 2-3, 2008, pp. 377-392. doi:10.1016/j.scitotenv.2008.04.033
[14] M. Taniguchi, T. Uemura and K. Jago-On, “Combined Effects of Urbanization and Global Warming on Subsurface Temperature in four Asian Cities,” Vadose Zone Journal, Vol. 6, No. 3, 2007, pp. 591-596. doi:10.2136/vzj2006.0094
[15] W. Knorr, I. C. Prentice, J. I. House and E. A. Holland, “Long-Term Sensitivity of Soil Carbon Turnover to Warming,” Nature, Vol. 433, No. 7023, 2005, pp. 298-301. doi:10.1038/nature03226
[16] S. Nakai, T. Itoh and T. Morimoto, “Deaths from Heat-Stroke in Japan: 1968-1994,” International Journal of Biometeorology, Vol. 43, No. 3, 1999, pp. 124-127. doi:10.1007/s004840050127
[17] W. T. Piver, M. Ando, F. Ye and C. J. Portier, “Temperature and Air Pollution as Risk Factors for Heat Stroke in Tokyo, July and August 1980-1995,” Environ Health Perspect, Vol. 107, No. 11, 1999, pp. 911-916. doi:10.1289/ehp.99107911
[18] D. Qiu, T. Tanihata, H. Aoyama, T. Fujita, Y. Inaba and M. Minowa, “Relationship between a High Mortality Rate and Extreme Heat during the Summer of 1999 in Hokkaido Prefecture, Japan,” Journal of Epidemiolody, Vol. 12, No. 3, 2002, pp. 254-257.

  
comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.