Journal of Advanced Informatics in Water, Soil, and Structure

Journal of Advanced Informatics in Water, Soil, and Structure

Investigating Changes in River Flow and Concentration of Precipitation in Dez Reservoir Basin

Document Type : Research Article

Authors
Mohammad Hossein Dasht Bozorgi 1
Fereydoon Radmanesh 1
Farshad Ahmadi 1
Mohammad Nazeri Tahroudi 2
1 Department of Hydrology and Water Resources, Shahid Chamran University, Ahvaz, Iran
2 Department of Water Engineering, Lorestan University, Khorramabad, Iran
10.22048/wss.2024.424171.1001
Abstract
In this study, in order to investigate the trend of changes in precipitation and river flow in Dez basin, were used the river flow (1963-2019) and precipitation (1971-2019) values of stations in Dez reservoir basin in two monthly and annual scales. The distribution of precipitation pattern in the region was also investigated using precipitation concentration index (PCI) and for evaluation the trend of changes in studied values the modified Mann-Kendall test were used. The results of the trend of precipitation changes in the study area showed the decreasing trend of precipitation in all studied stations that due to the slope of the trend line, most of the decrease in precipitation in the studied stations occurred in March. These changes are evident on a monthly and annual scale. Decreasing changes in precipitation in the study area have started since 1991. Decreasing changes in precipitation have a direct effect on flow rate and have caused decreasing changes in flow rate in Tele Zang, Sepid Dasht Sezar, Tang Pang Bakhtiari and Tang Pang Sezar stations. On a monthly scale, the decreasing changes were more significant in the first half of the year (April to October) and March. According to the time of change point in the flow rate time series in the studied stations, it is possible to reduce the flow rate changes in Tele Zang, Sepid Dasht Sezar, Tang Pang Bakhtiari and Tang Pang Sezar stations are about 34, 23, 15 and 43% respectively.
Keywords
Extreme values
Precipitation Concentration
Precipitation Pattern
Trend
Subjects
  1. Adegun, O., Balogun, I., & Adeaga, O. (2012). Precipitation concentration changes in Owerri and Enugu. Special publication of the nigerian association of hydrological sciences, 383-391.
  2. Ahmadi, F., Nazeri Tahroudi, M., Mirabbasi, R., Khalili, K., & Jhajharia, D. (2018). Spatiotemporal trend and abrupt change analysis of temperature in Iran. Meteorological Applications, 25(2), 314-321.
  3. Ahmadi, F., Nazeri Tahroudi, M., Mirabbasi, R., & Kumar, R. (2022). Spatiotemporal analysis of precipitation and temperature concentration using PCI and TCI: a case study of Khuzestan Province, Iran. Theoretical and Applied Climatology, 149(1), 743-760.
  4. Alahacoon, N., Edirisinghe, M., Simwanda, M., Perera, E. N. C., Nyirenda, V. R., & Ranagalage, M. (2021). Rainfall variability and trends over the African continent using TAMSAT data (1983–2020): Towards climate change resilience and adaptation. Remote Sensing, 14(1), 96.
  5. Bandyopadhyay, A., Bhadra, A., Raghuwanshi, N. S., & Singh, R. (2009). Temporal trends in estimates of reference evapotranspiration over India. Journal of Hydrologic Engineering, 14(5), 508-515.
  6. Burn, D. H., Cunderlik, J. M., & Pietroniro, A. (2004). Hydrological trends and variability in the Liard River basin/Tendances hydrologiques et variabilité dans le basin de la rivière Liard. Hydrological Sciences Journal, 49(1), 53-67.
  7. Hamed, K. H., & Rao, A. R. (1998). A modified Mann-Kendall trend test for autocorrelated data. Journal of hydrology, 204(1-4), 182-196.
  8. Herath, S., & Ratnayake, U. (2004). Monitoring rainfall trends to predict adverse impacts—a case study from Sri Lanka (1964–1993). Global Environmental Change, 14, 71-79.
  9. Kendall, M. G. (1938). A new measure of rank correlation. Biometrika, 30(1-2), 81-93.
  10. Khalili, K., Nazeri Tahrudi, M., & Khanmohammadi, N. (2014). Trend analysis of precipitation in recent two decades over Iran. J Appl Environ Biol Sci, 4(1s), 5-10.
  11. Khalili, K., Tahoudi, M. N., Mirabbasi, R., & Ahmadi, F. (2016). Investigation of spatial and temporal variability of precipitation in Iran over the last half century. Stochastic environmental research and risk assessment, 30, 1205-1221.
  12. Khaliq, M. N., Ouarda, T. B., & Gachon, P. (2009). Identification of temporal trends in annual and seasonal low flows occurring in Canadian rivers: The effect of short-and long-term persistence. Journal of Hydrology, 369(1-2), 183-197.
  13. Khozeymehnezhad, H., & Nazeri Tahroudi, M. (2019). Annual and seasonal distribution pattern of rainfall in Iran and neighboring regions. Arabian Journal of Geosciences, 12, 1-11.
  14. Kumar, S., Merwade, V., Kam, J., & Thurner, K. (2009). Streamflow trends in Indiana: effects of long term persistence, precipitation and subsurface drains. Journal of Hydrology, 374(1-2), 171-183.
  15. Luo, Y., Liu, S., Fu, S., Liu, J., Wang, G., & Zhou, G. (2008). Trends of precipitation in Beijiang River basin, Guangdong province, China. Hydrological Processes: An International Journal, 22(13), 2377-2386.
  16. Mann, H. B. (1945). Nonparametric tests against trend. Econometrica: Journal of the econometric society, 245-259.
  17. Modi, A., Tare, V., & Chaudhuri, C. (2021). Usage of long-term river discharge data in water balance model for assessment of trends in basin storages. Modeling Earth Systems and Environment, 7(2), 953-966.
  18. Nazeri Tahroudi, M., Khalili, K., Ahmadi, F., Mirabbasi, R., & Jhajharia, D. (2019). Development and application of a new index for analyzing temperature concentration for Iran’s climate. International Journal of Environmental Science and Technology, 16, 2693-2706.
  19. Oliver, J. E. (1980). Monthly precipitation distribution: a comparative index. The Professional Geographer, 32(3), 300-309.
  20. Pettitt, A. N. (1979). A non‐parametric approach to the change‐point problem. Journal of the Royal Statistical Society: Series C (Applied Statistics), 28(2), 126-135.
  21. Sen, P. K. (1968). Estimates of the regression coefficient based on Kendall's tau. Journal of the American statistical association, 63(324), 1379-1389.
  22. Thiel, H. (1950, February). A rank-invariant method of linear and polynomial regression analysis, Part 3. In Proceedings of koninalijke nederlandse akademie van weinenschatpen a (Vol. 53, pp. 1397-1412).
  23. Zamani, R., Mirabbasi, R., Nazeri, M., Meshram, S. G., & Ahmadi, F. (2018). Spatio-temporal analysis of daily, seasonal and annual precipitation concentration in Jharkhand state, India. Stochastic environmental research and risk assessment, 32, 1085-1097.

  • Receive Date 06 January 2025
  • Revise Date 15 February 2025
  • Accept Date 26 February 2025
  • First Publish Date 26 February 2025
  • Publish Date 22 March 2025