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Journals / International Journal of Environment and Geoinformatics / 2026 / Volume: 9 Issue: 3

Spatial and Temporal Variation of Total Column Ozone over Turkey with MERRA-2

Kahraman Oğuz(METEOROLOJİ GENEL MÜDÜRLÜĞÜ)0000-0001-5305-6145
Mithat Ekici(METEOROLOJİ GENEL MÜDÜRLÜĞÜ)0000-0001-9300-717X
Yılmaz Açar(Turkish State Meteorological Service, Department of Climate and Agricultural Meteorology)
Pages
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Publication Date
2022-09-08
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Total column ozone are the highest in spring, followed by winter, and the lowest in summer and autumn seasons over Turkey.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The main aim of this study is to analyse spatial and temporal variation of total column ozone as well as the trend over Turkey with MERRA-2 Reanalysis for the period 1980-2019.
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Key Findings & Data:First of all, MERRA-2 total column ozone is compared with Brewer Spectrophotometer located in Ankara in this study.
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Conclusion & Impact:Total column ozone are the highest in spring, followed by winter, and the lowest in summer and autumn seasons over Turkey.
🔬Design:Research Article
📍Scope:2019 Verileri
⚙️Variables:Total ozone · Spatial and temporal variation · Brewer spectrophotometer

Abstract

The main aim of this study is to analyse spatial and temporal variation of total column ozone as well as the trend over Turkey with MERRA-2 Reanalysis for the period 1980-2019. First of all, MERRA-2 total column ozone is compared with Brewer Spectrophotometer located in Ankara in this study. As a result, it is found that MERRA-2 total column ozone agrees quite well (R2=0.9781) with that from the Brewer Spectrophotometer. The trend analysis over Turkey indicates statistically significant decreasing trend in the 1980-1999 period, non-significant decreasing trend in the 2000-2009 period and non-significant increasing trend in the 2010-2019 period. The highest annual average total column ozone are found in Istanbul, Canakkale and Samsun cities with the values of 326.3±6.9 DU, 324.0±6.7 DU and 322.2±6.6 DU, respectively. Total column ozone are the highest in spring, followed by winter, and the lowest in summer and autumn seasons over Turkey.

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Cite This Article

Oğuz, K., Ekici, M., Açar, Y. (2022). Spatial and Temporal Variation of Total Column Ozone over Turkey with MERRA-2. International Journal of Environment and Geoinformatics, Volume: 9 Issue: 3. https://doi.org/10.30897/ijegeo.1039383

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References (29)

  1. Açar, Y., Yağan, S., Ekici, M., Ersoy, S., Akçakaya, A., Eskioğlu, O. (2013). The effect of air masses on thickness of total ozone in Ankara arrived on Turkey, III. Turkey Climate Change Conference, İstanbul, TURKEY, 3 - 5 June, 2013.
  2. Ahmad, I., Tang, D., Wang, T.F., Wang, M., Wagan, W. (2015). Precipitation Trends over Time Using Mann-Kendall and Spearman’s rho Tests in Swat River Basin. Advances in Meteorology, Vol. 2015, Article ID 431860, 1-15.
  3. Akçar, N., Schlüchter, C. (2005). Paleoglaciation in Anatolia: aschematic review and first results. Eiszeitalter und Gegenwart E&G Quaternary science journal, 55(1), 102–121.
  4. Andersson, C., Alpfjord, H., Robertson, L., Karlsson, P. E., and Engardt, M. (2017). Reanalysis of and attribution to near-surface ozone concentrations in Sweden during 1990-2013. Atmos. Chem. Phys., 17(22), 13869-13890.
  5. Bosilovich, M., Akella, S., Coy, L., Cullather, R., Draper, C., Gelaro, R., Kovach, R., Liu, Q., Molod, A., Norris, P., Wargan, K., Chao, W., Reichle, R., Takacs, L., Vikhliaev, Y., Bloom, S., Collow, A., Firth, S., Labow, G., Partyka, G., Pawson, S., Reale, O., Schubert, S.D., Suarez, M. (2015). MERRA-2: Initial Evaluation of the Climate, NASA Tech Rep Series on Global Modeling and Data Assimilation, 43 NASA/TM– 2015- 104606.
  6. Bosilovich, M., Cullather, R., National Center for Atmospheric Research Staff (Eds) (2019). The Climate Data Guide: NASA's MERRA2 reanalysis. Retrieved 15 July 2020 from https://climatedataguide.ucar.edu/climate-data/nasas-merra2-reanalysis.
  7. Briney, A. (2019). History and Geography of Turkey. Retrieved 18 August 2020 from https://www.thoughtco.com/geography-of-turkey-1435669.
  8. Cohn, S. E. (1997). An introduction to estimation theory. J. Meteor. Soc. Japan, 75(1B), 257–288.
  9. Crutzen, P.J. (1971). Ozone production rates in an oxygen-hydrogen-nitrogen oxide atmosphere. Geophysical Research Letters, 76(30), 7311-7327.
  10. Davis, S.M., Hegglin, M.I., Fujiwara, M., Dragani, R., Harada, Y., Kobayashi, C., Long, C., Manney, G. L., Nash, E. R., Potter, G. L., Tegtmeier, S., Wang, T., Wargan, K., and Wright, J. S. (2017). Assessment of upper tropospheric and stratospheric water vapor and ozone in reanalyses as part of S-RIP, Atmos. Chem. Phys., 17(20), 12743–12778.
  11. Demirhan Bari, D. and Topcu, H.S. (2011). Interrelationship between the variability of Northern Hemispheric total ozone, temperature and eddy heat flux. ITU Journal Serie D: Engineering, 10(3), 116-124.
  12. Dobson, G.M.B., Brewer, A.W. and Cwilong, B.M., (1946). Meteorology of the lower stratosphere, Proceeding of Royal Society, 185(Ser A), 144-175.
  13. Douglass, A., Fioletov, V., et al. (2010). Scientific Assessment of Ozone Depletion: 2010 ―Stratospheric Ozone and Surface. World Meteorological Organization Global Ozone Research and Monitoring Project-Report No. 52 Ultraviolet Radiation Chapter (pp. 2.1-2.2), Geneva, Switzerland.
  14. Dragani, M. (2011). On the quality of the ERA-Interim ozone reanalyses: comparisons with satellite data. Q. J. Roy. Meteor. Soc., 137(658), 1312-1326.
  15. Kalnay, E. (2003). Atmospheric Modeling, Data Assimilation and Predictability. Cambridge University Press, Cambridge, UK. Kendall, M.G. (1975). Rank Correlation Methods. Griffin, London, UK.
  16. Kisi, O., Ay, M. (2014). Comparison of Mann–Kendall and innovative trend method for water quality parameters of the Kizilirmak River. Journal of Hydrology, 513, 362–375.
  17. Koçman, A. (1993). Turkey’s climate. Ege University Faculty of Letters Press, Izmir.
  18. Lemoine, R. (2004). Secondary maxima in ozone profiles. Atmos. Chem. Phys., 4(4), 1085–1096.
  19. Madhu, V., Gangadharan, K. (2016). Temporal Distribution of Total Column Ozone over Cochin—A Study Based on in Situ Measurements and ECMWF Reanalysis. Open Journal of Marine Science, 6(2), 200-209.
  20. Mann, H. B. (1945). Nonparametric tests against trend. Econometrica, 13(3), 245–259.
  21. Mateer, C.L., Dutsch, H.U. (1964). Proposed standard evaluation technique. Uniform evaluation of Umkehr observations from the World Ozone Network: Part I., National Center for Atmospheric Research, Boulder, CO.
  22. Sen, P.K. (1968). Estimates of the regression coefficient based on Kendall’s tau. Journal of the American Statistical Association, 63(324), 1379-1389.
  23. Sensoy, S. (2004). The Mountains Influence On Turkey Climate, BALWOIS Conference, Ohrid, MACEDONIA, 25-29 May 2004.
  24. Shangguan, M., Wang, W., Jin, S. (2019). Variability of temperature and ozone in the upper troposphere and lower stratosphere from multi-satellite observations and reanalysis data. Atmos. Chem. Phys., 19(10), 6659–6679.
  25. Srıdhar, S.I., and Ravıraj, A. (2017). Statistical Trend Analysis of Rainfall in Amaravathi River Basin Using Mann-Kendall Test. Curr. World Environ., 12(1), 89-96.
  26. UNEP (2011). National Report On The Existing Planned Ozone Research And Monitorıng Activities. Retrieved 28 August 2020 from https://ozone.unep.org/Meeting_Documents/research-mgrs/8orm/8ORM_report_part2_S-Z.pdf.
  27. Wargan, K., Pawson, S., Olsen, M. A., Witte, J. C., Douglass, A. R., Ziemke, J. R., Strahan, S. E., and Nielsen, J. E. (2015). The global structure of upper troposphere-lower stratosphere ozone in GEOS-5: A multiyear assimilation of EOS Aura data. J. Geophys. Res.-Atmos., 120(5), 2013–2036.
  28. WMO (2010). Scientific Assessment of Ozone Depletion: 2010. Global Ozone Research and Monitoring Project, Report No. 52, Geneva, SWITZERLAND.
  29. Wargan, K., Labow, G., Frith, S., Pawson, S., Livesey, N., and Partyka, G. (2017). Evaluation of the Ozone Fields in NASA's MERRA-2 Reanalysis. J. Climate, 30(8), 2961-2988.