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Journal of Ocean University of China

, Volume 16, Issue 6, pp 1055–1060 | Cite as

Assessment of sea water inundation along Daboo creek area in Indus Delta Region, Pakistan

  • Ibrahim Zia
  • Hina Zafar
  • Muhammad I. Shahzad
  • Mohsin Meraj
  • Jamil H. Kazmi
Article

Abstract

Indus Deltaic Region (IDR) in Pakistan is an erosion vulnerable coast due to the high deep water wave energy. Livelihood of millions of people depends on the fisheries and mangrove forests in IDR. IDR consists of many creeks where Daboo is a major creek located at southeast of the largest city of Pakistan, Karachi. Unfortunately, there has been no detailed study to analyze the damages of sea water intrusion at a large temporal and spatial scale. Therefore, this study is designed to estimate the effects of sea water inundation based on changing sea water surface salinity and sea surface temperature (SST). Sea surface salinity and SST data from two different surveys in Daboo creek during 1986 and 2010 are analyzed to estimate the damages and extent of sea water intrusion. Mean salinity has increased 33.33% whereas mean SST decreased 13.79% from 1987 to 2010. Spatio-temporal analysis of creek area using LANDSAT 5 Thematic mapper (TM) data for the years 1987 and 2010 shows significant amount of erosion at macro scale. Creek area has increased approximately 9.93% (260.86 m2 per year) which is roughly equal to 60 extensive sized shrimp farms. Further Land Use Land Cover (LULC) analyses for years 2001 and 2014 using LANDSAT 7 Enhanced Thematic Mapper Plus (ETM+) has indicated 42.3% decrease in cultivated land. Wet mud flats have spread out at the inner mouth of creek with enormous increase of 123.3%. Significant sea water intrusion has increased the area of barren land by 37.9%. This also resulted in overall decrease of 6.7% in area covered by mangroves. Therefore, this study recorded a significant evidence of sea water intrusion in IDR that has caused serious damages to community living in the area, economical losses. Additionally, it has also changed the environment by reducing creek biological productivity as reported by earlier studies over other regions of the world.

Key words

sea water intrusion SST salinity Ambro creek CTD 

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Notes

Acknowledgement

The authors would like to thank National Institute of Oceanography (NIO), Karachi, Pakistan for providing the in-situ data and department of Geography at the University of Karachi for their research input.

References

  1. Antonellini, M., Mollema, P., Giambastiani, B., Bishop, K., Caruso, L., Minchio, A., Pellegrini, L., Sabia, M., Ulazzi, E., and Gabbianelli, G., 2008. Salt water intrusion in the coastal aquifer of the southern Po Plain, Italy. Hydrogeology Journal, 16: 1541–1556, DOI: 10.1007/s10040-008-0319-9.CrossRefGoogle Scholar
  2. Bae, S. W., Lee, K. E., Park, Y., Kimoto, K., Ikehara, K., and Harada, N., 2014. Sea surface temperature and salinity changes near the Soya Strait during the last 19 ka. Quaternary International, 344: 200–210.CrossRefGoogle Scholar
  3. Chandio, N. H., Anwar, M. M., and Chandio, A. A., 2011. Degradation of Indus delta, removal mangroves forestland its causes: A case study of Indus river delta. Sindh University Research Journal (Science Series), 43 (1): 67–72.Google Scholar
  4. Chang, S. W., Clement, T. P., Simpson, J. M., and Lee, K. K., 2011. Does sea-level rise have an impact on saltwater intrusion? Advances in Water Resources, 34: 1283–1291.CrossRefGoogle Scholar
  5. Felisa, G., Ciriello, V., and Federico, V., 2013. Saltwater intrusion in coastal aquifers: A primary case study along the adriatic coast investigated within a probabilistic framework. Water, 5 (4): 1830–1847.CrossRefGoogle Scholar
  6. Gaillard, F., Diverres, D., Jacquin, S., Gouriou, Y., Grelet, J., Menn, M. L., Tassel J., and Reverdin, G., 2015. Sea surface temperature and salinity from French research vessels, 2001–2013. Scientific Data, 2: 1–9.CrossRefGoogle Scholar
  7. Giosan, L., Constantinescu, S., Clift, P. D., Tabrez, A. R., Danish, M., and Inam, A., 2006. Recent morphodynamics of Indus delta shore and shelf. Continental Shelf Research, 26: 1668–1684.CrossRefGoogle Scholar
  8. Hinkel, J., Nicholls, R., Tol, R., Wang, Z., Hamilton, J., Boot, G., Vafeidis, A., McFadden, L., and Klein, R., 2013. A global analysis of erosion of sandy beaches and sea-level rise: An application of DIVA. Global and Planetary Change, 111: 150–158.CrossRefGoogle Scholar
  9. Khan, A. E. H., Ireson, A., Kovats, S., Mojumder, S. K., Khusru, A., Rahman, A., and Vineis, P., 2011. Drinking water salinity and maternal health in coastal Bangladesh: Implications of climate change. Environmental Health Perspectives, 119 (9): 1328–1332.CrossRefGoogle Scholar
  10. Kumar, S. P., and Prasad, T. G., 1999. Formation and spreading of Arabian Sea high-salinity water mass. Journal of Geophysical Research, 104: 1455–1464.CrossRefGoogle Scholar
  11. Liu, W. C., and Liu, H. M., 2014. Assessing the impacts of sea level rise on salinity intrusion and transport time scales in tidal estuary, Taiwan. Water, 6 (2): 324–344.CrossRefGoogle Scholar
  12. Lu, C., Xin, P., Li, L., and Luo, J., 2014. Seawater intrusion in response to sea-level rise in a coastal aquifer with a generalhead inland boundary. Journal of Hydrology, 522: 135–140.CrossRefGoogle Scholar
  13. Milliman, J. D., Broadus, J. M., and Gable, F., 1989. Environmental and economic implications of rising sea level and subsiding deltas: The Nile and Bengal examples. Royal Swedish Academy of Sciences, 18 (6): 340–345.Google Scholar
  14. Morton, R. A., 2003. An overview of coastal land loss: With emphasis on the southeastern united states. USGS Open Report. St. Petersburg, 1–29.Google Scholar
  15. National Institute of Oceanography (N.I.O), 2000. The impact of cyclone 2A on the tidal link drain and adjacent areas based on the historical data. National Institute of Oceanography (N.I.O) Report. Karachi, Pakistan, 1–66.Google Scholar
  16. Rana, A. S., Zaman, Q., Afzal, M., and Haroon, M., 2014. Characteristics of sea surface temperature of the Arabian Sea coast of Pakistan and impact of tropical cyclones on SST. Pakistan Journal of Meteorology, 11 (2): 61–70.Google Scholar
  17. Ranasinghe, R., Callaghan, D., and Stive, M., 2011. Estimating coastal recession due to sea level rise: Beyond the Bruun rule. Climatic Change, 110 (3): 561–574.Google Scholar
  18. Smith, S., and Abdel-Kader, A., 2014. Coastal erosion along the Egyptian Delta. Journal of Coastal Research, 4 (2): 245–255.Google Scholar
  19. Souza, A., and Pineda, J., 2001. Tidal mixing modulation of sea surface temperature and diatom abundance in southern California. Continental Shelf Research, 21 (6-7), 651–666.CrossRefGoogle Scholar
  20. Vineis, P., Chan, Q., and Khan, A., 2011. Climate change impacts on water salinity and health. Journal of Epidemiology and Global Health, 1 (1): 5–10.CrossRefGoogle Scholar
  21. Wells, J., and Coleman, J., 1984. Deltaic morphology and sedimentology, with special reference to the Indus River delta. Marine Geology & Oceanography of Arabian Sea & Coastal Pakistan, TR–424: 85–100.Google Scholar
  22. Werner, A., Bakker, M., Post, V., Vandenbohede, A., Lu, C., Ataie-Ashtiani, B., and Simmons, C. T., 2012. Seawater intrusion processes, investigation and management: Recent advances and future challenges. Advances in Water Resources, 51: 3–26.CrossRefGoogle Scholar
  23. Yang, S., Zhang, J., Zhu, J., Smith, J., Dai, S., Gao, A., and Li, P., 2005. Impacts of dams on Yangtze River sediment supply to the sea and delta intertidal wetland response. Journal of Geophysical Research, 110: F03006, DOI: 10.1029/2004JF000271.Google Scholar

Copyright information

© Science Press, Ocean University of China and Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  • Ibrahim Zia
    • 1
    • 2
  • Hina Zafar
    • 2
  • Muhammad I. Shahzad
    • 3
  • Mohsin Meraj
    • 3
  • Jamil H. Kazmi
    • 2
  1. 1.National Institute of Oceanography (NIO)KarachiPakistan
  2. 2.Department of GeographyUniversity of KarachiKarachiPakistan
  3. 3.Earth & Atmospheric Remote Sensing Laboratory (EARL), Department of MeteorologyCOMSATS Institute of Information Technology (CIIT)IslamabadPakistan

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