Articles | Volume 19, issue 2
Hydrol. Earth Syst. Sci., 19, 657–673, 2015
https://doi.org/10.5194/hess-19-657-2015
Hydrol. Earth Syst. Sci., 19, 657–673, 2015
https://doi.org/10.5194/hess-19-657-2015
Research article
02 Feb 2015
Research article | 02 Feb 2015

Drivers of spatial and temporal variability of streamflow in the Incomati River basin

A. M. L. Saraiva Okello et al.

Related authors

Understanding runoff processes in a semi-arid environment through isotope and hydrochemical hydrograph separations
V. V. Camacho Suarez, A. M. L. Saraiva Okello, J. W. Wenninger, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 19, 4183–4199, https://doi.org/10.5194/hess-19-4183-2015,https://doi.org/10.5194/hess-19-4183-2015, 2015
Short summary

Related subject area

Subject: Water Resources Management | Techniques and Approaches: Instruments and observation techniques
δ13C, CO2 ∕ 3He and 3He ∕ 4He ratios reveal the presence of mantle gas in the CO2-rich groundwaters of the Ardennes massif (Spa, Belgium)
Agathe Defourny, Pierre-Henri Blard, Laurent Zimmermann, Patrick Jobé, Arnaud Collignon, Frédéric Nguyen, and Alain Dassargues
Hydrol. Earth Syst. Sci., 26, 2637–2648, https://doi.org/10.5194/hess-26-2637-2022,https://doi.org/10.5194/hess-26-2637-2022, 2022
Short summary
Advances in the hydraulic interpretation of water wells using flowmeter logs
Jesús Díaz-Curiel, Bárbara Biosca, Lucía Arévalo-Lomas, María Jesús Miguel, and Natalia Caparrini
Hydrol. Earth Syst. Sci., 26, 2617–2636, https://doi.org/10.5194/hess-26-2617-2022,https://doi.org/10.5194/hess-26-2617-2022, 2022
Short summary
Continuous monitoring of a soil aquifer treatment system's physico-chemical conditions to optimize operational performance
Tuvia Turkeltaub, Alex Furman, Ron Mannheim, and Noam Weisbrod
Hydrol. Earth Syst. Sci., 26, 1565–1578, https://doi.org/10.5194/hess-26-1565-2022,https://doi.org/10.5194/hess-26-1565-2022, 2022
Short summary
Building a methodological framework and toolkit for news media dataset tracking of conflict and cooperation dynamics on transboundary rivers
Liying Guo, Jing Wei, Keer Zhang, Jiale Wang, and Fuqiang Tian
Hydrol. Earth Syst. Sci., 26, 1165–1185, https://doi.org/10.5194/hess-26-1165-2022,https://doi.org/10.5194/hess-26-1165-2022, 2022
Short summary
Investigating the environmental response to water harvesting structures: a field study in Tanzania
Jessica A. Eisma and Venkatesh M. Merwade
Hydrol. Earth Syst. Sci., 24, 1891–1906, https://doi.org/10.5194/hess-24-1891-2020,https://doi.org/10.5194/hess-24-1891-2020, 2020
Short summary

Cited articles

Beumer, J. and Mallory, S.: Water Requirements and Availability Reconciliation Strategy for the Mbombela Municipal Area. Final Reconcialiation Strategy, Department of Water Affairs, South Africa, 2014.
Birkel, C., Soulsby, C., Ali, G., and Tetzlaff, D.: Assessing the cumulative impacts of hydropower regulation on the flow characteristics of a large atlantic Salmon river system, River Res. Applic., 30, 456–475, https://doi.org/10.1002/rra.2656, 2014.
Bunn, S. E. and Arthington, A. H.: Basic Principles and Ecological Consequences of Altered Flow Regimes for Aquatic Biodiversity, Environ. Manage., 30, 492–507, https://doi.org/10.1007/s00267-002-2737-0, 2002.
De Winnaar, G. and Jewitt, G.: Ecohydrological implications of runoff harvesting in the headwaters of the Thukela River basin, South Africa, Phys. Chem. Earth, Parts A/B/C, 35, 634–642, https://doi.org/10.1016/j.pce.2010.07.009, 2010.
DWAF – Department of Water Affairs and Forestry: Inkomati Water Availability Assessment Study, Water Requirements Volume 1, prepared by: Water for Africa Environmental, Engineering and Management Consultants, SRK Consulting and CPH20, PWMA 05/X22/00/0908, Pretoria, 2009a.
Download
Short summary
We studied long-term daily records of rainfall and streamflow of the Incomati River basin in southern Africa. We used statistical analysis and the Indicators of Hydrologic Alteration tool to describe the spatial and temporal variability flow regime. We found significant declining trends in October flows, and low flow indicators; however, no significant trend was found in rainfall. Land use and flow regulation are larger drivers of temporal changes in streamflow than climatic forces in the basin.