Department of Civil Engineering, National Institute of Technology Manipur, India


Hydrological components in a river basin can get adversely affected by climate change in coming future. Manipur River basin lies in the extreme northeast region of India nestled in the lesser Himalayan ranges and it is under severe pressure from anthropogenic and natural factors. Basin is un-gauged as it lies in remote location and suffering from large data scarcity. This paper explores the impact of climate change towards understanding the inter-relationships between various complex hydrological factors in the river basin. An integrated approach is applied by coupling Soil and Water Assessment Hydrological Model and Hadley Center Coupled Model based on temperature, rainfall and geospatial data. Future representative concentration pathways 2.6, 4.5 and 8.5 scenarios for 2050s and 2090s decades were used to evaluate the effects of climatic changes on hydrological parameters. Both annual mean temperature and annual precipitation is predicted to be increased by 2.07oC and 62% under RCP 8.5 by the end of 21st century. This study highlights that change in meteorological parameters will lead to significant change in the hydrological regime of the basin. Runoff, actual evapotranspiration and water yield are expected to be increased by 40.96 m3/s, 52.2% and 86.8% respectively under RCP 8.5. This study shows that water yield and evapotranspiration will be most affected by increase in precipitation and temperature in the upper and middle sub-basins. Different region within the basin is likely to be affected by frequent landslides and flood in coming decades.

Graphical Abstract


  • Both precipitation and temperature is likely to increase in Manipur River basin;
  • There is a high risk of landslides in the northern part of Manipur River basin due to soil liquefaction;
  • There is a high risk of flood in the lower region around Loktak Lake;
  • There does not seem to be a major water scarcity in the coming century in Manipur River basin;
  • There is a good potential of hydro-power generation in the Manipur River basin because of increase in discharge especially in monsoon and post monsoon season.


Main Subjects

Abbaspour, K.C., (2015). SWAT-CUP: SWAT calibration and uncertainty programs- A user manual Swiss Federal Institute of Aquatic Science and Technology, 1-100 (100 pages).

Arnold, J.G.; Fohrer, N., (2005). SWAT-2000: current capabilities and research opportunities in applied water-shed modeling. Hydrol. Process. 19(3): 563–572(10 pages).

Bastola, S.; Ishidaira, H.; Takeuchi, K., (2008). Regionalization of hydrological model parameters under parameter uncertainty: A case study involving TOPMODEL and basins across the globe. J. Hydrol., 357(34): 188206 (19 pages).

Baymani, M.; Han, D., (2013). Hydrological modeling using effective rainfall routed by the Muskingum method (ERM). J. Hydroinfo., 15(4): 1437–1455 (19 pages).

Bouraoui, F.; Benabdallah, S.; Jrad, A.; Bidoglio, G., (2005). Application of the SWAT model on the Medjerda river basin (Tunisia). Phys. Chem. Earth 30(8–10): 497–507 (11 Pages).

Dai, A., (2013). Increasing drought under global warming in observations and models. Nat. Climate Chang. 3: 52– 58 (7 Pages).

Devi, G.; Ganasri, B.; Dwarakish, G., (2015). A review on hydrological models. International Conference on Water Resource Coastal and Ocean Engineering. 1001-1007 (7 Pages).

Gosain, A.K.; Mani, A.; Dwivedi, C., (2009). Hydrological modelling-literature review: report No. 1. Indo-Norwegian Institutional Cooperation Program.

Gupta, H.V.; Kling, H.; Yilmaz, K.K.; Martinez, G.F.,(2009). Decomposition of the mean squared error and NSE performance criteria: implications for improving hydrological modeling. J. Hydrol., 377: 80-91(12 pages).

ICIMOD, (2008). Recorded proceedings of the two day ‘Climate change and vulnerability of mountain ecosystems in the eastern Himalayan region, North-East India & Bhutan stakeholders workshop’, Shillong. Organized by international center for integrated mountain development Kathmandu, Nepal. (110 pages).                  

Immerzeel, W.W.; Van Beek, L.P.H.; Shrestha, A.B.; Bierkens, M.F.P., (2012). Hydrological response to climate change in a glacierized catchment in Himalaya. Climate Change. 110(3-4): 721-736 (16 Pages).

IPCC, (2007). Summary for policymakers. In: climate change 2007: The physical science basis. Contribution of working group I to the fourth assessment report of the IPCC. Cambridge University, Cambridge (863 pages).

Lamba, J.; Thompson, A.M.; Karthikeyan, K.G.; Panuska, J.C.; Good L.W., (2016). Effect of best management practice implementation on sediment and phosphorus load reductions at sub watershed and watershed scale using SWAT model. Int. J. Sediment Res., 4: 386-94 (9 Pages).

LDA, (2003). Extension proposal. Sustainable development and water resource management of Loktak Lake. Imphal, Manipur, India.Loktak Development Authority and Wetlands International South Asia (20 Pages).

Lenhart, T.; Eckhardt, K.; Fohrer, N.; Frede, H.G., (2002). Comparison of different approaches of sensitivity analysis. Phys. Chem. Earth. 27: 645–654 (10 Pages).

Lesk, C.; Rowhani, P.; Ramankutty, N., (2016). Influence of extreme weather disasters on global crop      production. Nature, 529: 84–87 (4 Pages).     

Liu, M.; Li, C.L.; Hu, Y.M.; Sun, F.; Xu, Y.Y.; Chen, T., (2014). Combining CLUE-S and SWAT models to forecast land use change and non-point source pollution impact at a watershed scale in Liaoning Province China. Geogr. Sci., 5: 540-50 (11 Pages).

Merz, R.; Blöschla, G., (2008). Regionalization of catchment model parameters. J. Hydrol., 287(14): 95 123 (29 Pages).

McIntyre, N.; Lee, H.; Wheater, H.; Young, A.; Wagener, T., (2005).Ensemble predictions of runoff in ungauged catchments, Water Resour., 41(12): W12434 (14 Pages).

Mirza, (2003) Climate change and extreme weather events: can developing countries adapt? Climate Policy 3(3): 233-248 (16 Pages).

Nash, J.E.; Sutcliffe, J.V., (1970). River flow forecasting through conceptual models 1.A discussion of principles. J. Hydrol., 10(3): 282-290 (9 Pages).

NBSS and LUP, (2001). Land capability classes of catchment area of Loktak Lake, Manipur. Jorhat, Assam, India. National Bureau of Soil Survey and Land Use Planning.

Ndomba, P.; Mtalo, F.; Killingtveit, A., (2008). SWAT model application in a data scarce tropical complex catchment in Tanzania. Phys. Chem. Earth 33(8): 626–632 (7 Pages).

Neitsch, S.L.; Arnold, J.C.; Kiniry, J.R.; Williams, J.; King, K.W., (2002). Soil and Water Assessment Tool Theoretical Documentation. Version (2000).Texas Water Resources Institute, College Station, Texas, USA (506 Pages).

Neitsch, S.L.; Arnold, J.G.; Kiniry, J.R.; Williams, J.R., (2011).Soil and water assessment tool theoretical documentation version 2009. Texas Water Resources Institute (647 Pages).

Ramsar Bureau., (2016).The list of wetlands of international importance, 1–48. Gland, Switzerland: Ramsar Secretariat (110 Pages).

Rathore, L.S.; Attri, S.D.; Jaswal, A.K., (2013). State level climate change in trends in India. Indian Met. Dept., 25 (156 Pages).

Refsgaard, J.C.; Knudsen,J., (1996).Operational validation and inter-comparison of different types of Hydrological models. Water Resour., 32(7): 2189-2202 (14 Pages).

Singh, C.R.; Thompson, J.R.; French, J.R.; Kingston, D.G.; Mackay A.W., (2010). Modeling the impact of prescribed global warming on the runoff from headwater catchments of the Irrawaddy River and their implications for the water level regime of Loktak Lake, northeast India, Hydrol. Earth Syst. Sci., 14: 1745-1765 (21 Pages).

Tsolmon, R.; Ammar, R.E.; Martin, K.; Linh, N., (2017). Hydrological modeling and runoff mitigation in an ungauged basin of Central Vietnam using SWAT model. Hydrology. 4(1): 16 (17 Pages).

Veith, T.L.; Ghebremichael, L.T., (2009). How to applying and interpreting the SWAT Auto-calibration tools. In 5th international SWAT conference, 5–7: 26-33 (8 Pages).

Venkatachary, K.V.; Bandyopadhyay, K.; Bhanumurthy, V.; Rao, G. S.; Sudhakar, S.; Pal, D.K.; Das, R.K.; Utpal, S.; Manikiam, B.; Meena, H.C.; Srivastava, S.K., (2001). Defining a space-based disaster management system for floods: A case study for damage assessment due to 1998 Brahmaputra floods. Curr. Sci., 80: 369-377 (9 pages).

World Bank Group, (2016). Annual report (71 Pages).

Zhang, M.; Liu, N.;Harper, R.; Li, Q.; Wei, X.; Ning, D.; Hou, Y.; Liu, S., (2017). A global review on hydrological responses to forest change across multiple spatial scales: Importance of scale, climate, forest type and hydrological regime. J. Hydrol., 546: 44-59 (16 Pages).

Zheng, Y.; Keller, A.A., (2007). Uncertainty assessment in watershed-scale water quality modelling and management: framework and application of generalized likelihood uncertainty estimation (GLUE) approach. Water Resour., 43: 1-13 (13 Pages).



Anand, V.; Oinam, B., (2019).  Future climate change impact on hydrological regime of river basin using SWAT model. Global J. Environ. Sci. Manage., 5(4): …, …

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