Document Type : Research Paper

Authors

1 َAssistant Professor, Department of Reclamation of Arid and Mountainous Regions, Natural Resources Faculty, University of Tehran, Karaj, Iran

2 Ph.D. Student in Combat Desertification, Department of Reclamation of Arid and Mountainous Regions, Natural Resources Faculty, University of Tehran, Karaj, Iran

Abstract

Changes in temporal and spatial patterns of droughts are always a pivotal element of water resource planning, and the necessary strategies for policy-making and integrated water resources management are considered based on this parameter. Drought is a phenomenon degrading the lands and sometimes causes irreparable damages. In this research, SPI and GRI indices were used to study the spatial and temporal patterns of meteorological and hydrological droughts in Bam Plain. The results of this study showed that the most severe meteorological drought and the most severe wet occurred in 2002 and 2014 in the study area, respectively. Also, the most severe hydrological wet (SHW) and the most severe hydrological drought (SHD) are related to 2002 and 2014, respectively. Meanwhile, the hydrological drought temporal pattern occurs with a one-year delay as compared with meteorological drought in the study area. According to the results of the spatial pattern analysis, the moderate and normal drought classes covered most of the region. In addition, as moving from east to west, the severity of drought is increased and wet periods are mostly observed in the northeast of the region.

Keywords

-  Akrami, M., Sharifi, Z., Malekinejad, H. and Ekhtesasi, M. R., 2011. Study of the process of quantitative and qualitative changes of groundwater levels in Yazd plain of Ardakan in the decade of 2000-2009. Journal of Research School of Health, Autumn and Winter, 12p.
-  Byun H. R. and Wilhite, D. A., 1996. Daily quantification of drought severity and duration. Journal of Climate, 5:1181–1201.
-  Deepashree R. and Mujumdar, P. P., 2010. Hydrologic drought prediction under climate change: Uncertainty modeling with Dumpster–Shafer and Bayesian approaches. Journal of Advances in Water Resources, 33: 1176–1186.
-  Dupigny-Giroux, L.-A., 2001: Towards characterizing and planning for drought in Vermont – Part I: A climatological perspective. Journal of the American Water Resources Association, 37: 505-525.
-  Eslamian, S., Nasri M. and Rahimi, N., 2006. Investigation of wetting periods and droughts and its effects on water resources changes in the plain of Boey watershed, Journal of Geography and Environmental Planning, Volume 20, Number 1 (33), Pp:90-75.
-  Imani M. and Talebi, A., 2011. Drought effects on groundwater table changes in Behabad plain of Yazd using SPI and GRI indices, 4th Iranian Water Resources Management Conference, Amirkabir University of Technology, Tehran, May.
-  Khan, S., Gabriel, H.F. and Rana, T., 2008. Standard precipitation index to track drought and assess impact of rainfall on water tables in irrigation areas. Irrig. Drain.Syst. 22: 159–177.
-  McKee T.B. and Edwards, D.C. 1997. Characteristics of 20th century drought in the United States at multiple time scales. Climatology Report Number 97–2, Colorado state university. Fort Collins, CO.
-  Mckee, T. B., Doesken, N. J. and Kleist, J., 1993. The relationship of drought frequency and duration to time scales 8 conference, Applied climatology.
-  Mendocino, G., Senatore, A. and Versace, P. 2008. A Groundwater Resource Index (GRI) for drought monitoring and forecasting in a Mediterranean climate. Journal of Hydrology, 357: 282– 302.
-  Naeimi M. and Ehghaghi, E. 2002. Drought Investigation and Management in Iran, Scientific Information Center, No. 48424.
-  Peters, E., Bier, G., van Lanen, H. A .J. and Torfs, P.J .J .F., 2006. Propagation and spatial distribution of drought in a groundwater catchment. Journal of Hydrology, 321: 257-275.
-  Peters, E., van Lanen, H. A. J., Torfs, P.J .J .F. and Bier, G., 2005. Drought in groundwater-drought distribution and performance indicators, Journal of Hydrology, 306:302–317.
-  Serrano, S. M. and Moreno, J. I., 2005. Hydrological response to different scales of the standardized precipitation Index in a mountainous Mediterranean basin. Hydrology and Earth System Sciences Disessions, (2): 1221-1246.
-  Shahid, Sh. and Hazarika, M. K., 2009. Groundwater Drought in the Northwestern District of Bangladesh. Water Resource Manage.
-  Tallaksen M. and Hisda, H., 2003. Estimation of regional meteorological and hydrological drought characteristics: a case study for Denmark, Journal of Hydrology, 281 (2003): 230–247
-  Tsakiris, G., Pangalou, D. and Vangelis, H., 2007. Regional drought assessment based on the Reconnaissance Drought Index (RDI). Water Resource Manage, 21:821–833
-  Tsakiris, G. and Vangelis, H., 2005. Establishing a drought index incorporating evapotranspiration. European Water Resources Association, 9–10:1–9.