Articles | Volume 19, issue 2
https://doi.org/10.5194/hess-19-657-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/hess-19-657-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
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
CORRESPONDING AUTHOR
UNESCO-IHE, Institute for Water Education, P.O. Box 3015, 2601 DA Delft, the Netherlands
Centre for Water Resources Research, School of Agriculture, Earth and Environmental Science, University of KwaZulu-Natal, Private Bag X01, Scottsville, 3209, South Africa
I. Masih
UNESCO-IHE, Institute for Water Education, P.O. Box 3015, 2601 DA Delft, the Netherlands
S. Uhlenbrook
UNESCO-IHE, Institute for Water Education, P.O. Box 3015, 2601 DA Delft, the Netherlands
Delft University of Technology, Department of Water Resources, P.O. Box 5048, 2600 GA Delft, the Netherlands
G. P. W. Jewitt
Centre for Water Resources Research, School of Agriculture, Earth and Environmental Science, University of KwaZulu-Natal, Private Bag X01, Scottsville, 3209, South Africa
P. van der Zaag
UNESCO-IHE, Institute for Water Education, P.O. Box 3015, 2601 DA Delft, the Netherlands
Delft University of Technology, Department of Water Resources, P.O. Box 5048, 2600 GA Delft, the Netherlands
E. Riddell
Centre for Water Resources Research, School of Agriculture, Earth and Environmental Science, University of KwaZulu-Natal, Private Bag X01, Scottsville, 3209, South Africa
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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
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Isotope and hydrochemical tracers are tested providing new insights to isotope hydrograph in semi-arid areas in southern Africa. This study provides a spatial hydrochemical characterization of surface and groundwater sources, end member mixing analysis, and two- and three-component hydrograph separations. Results showed that the Kaap catchment is mainly dominated by groundwater sources, and direct runoff is positively correlated with the Antecedent Precipitation Index during the wet season.
Anjana Ekka, Yong Jiang, Saket Pande, and Pieter van der Zaag
Hydrol. Earth Syst. Sci., 28, 3219–3241, https://doi.org/10.5194/hess-28-3219-2024, https://doi.org/10.5194/hess-28-3219-2024, 2024
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For the first time, we analyse the economic and ecological performance of existing multiple big reservoirs on a daily timescale for a major river basin (upper Cauvery) in India, where pre-intervention data were not available but where there are increasing calls for such assessments. Results show that smaller reservoirs on smaller streams that maximize the economic value of stored water are better for the basin economy and the environment. The approach can help to prioritize dam removals.
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Hydrol. Earth Syst. Sci., 27, 4505–4528, https://doi.org/10.5194/hess-27-4505-2023, https://doi.org/10.5194/hess-27-4505-2023, 2023
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Satellite data are increasingly used to estimate evapotranspiration (ET) or the amount of water moving from plants, soils, and water bodies into the atmosphere over large areas. Uncertainties from various sources affect the accuracy of these calculations. This study reviews the methods to assess the uncertainties of such ET estimations. It provides specific recommendations for a comprehensive assessment that assists in the potential uses of these data for research, monitoring, and management.
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Hydrol. Earth Syst. Sci., 27, 4335–4354, https://doi.org/10.5194/hess-27-4335-2023, https://doi.org/10.5194/hess-27-4335-2023, 2023
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Many remote sensing products for precipitation, evapotranspiration, and water storage variations exist. However, when these are used with in situ runoff data in water balance closure studies, no single combination of products consistently outperforms others. We analyzed the water balance closure using different products in catchments worldwide and related the results to catchment characteristics. Our results can help identify the dataset combinations best suited for use in different catchments.
Afua Owusu, Jazmin Zatarain Salazar, Marloes Mul, Pieter van der Zaag, and Jill Slinger
Hydrol. Earth Syst. Sci., 27, 2001–2017, https://doi.org/10.5194/hess-27-2001-2023, https://doi.org/10.5194/hess-27-2001-2023, 2023
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The construction of two dams in the Lower Volta River, Ghana, adversely affected downstream riverine ecosystems and communities. In contrast, Ghana has enjoyed vast economic benefits from the dams. Herein lies the challenge; there exists a trade-off between water for river ecosystems and water for anthropogenic water demands such hydropower. In this study, we quantify these trade-offs and show that there is room for providing environmental flows under current and future climatic conditions.
Anjana Ekka, Yong Jiang, Saket Pande, and Pieter van der Zaag
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2023-10, https://doi.org/10.5194/hess-2023-10, 2023
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The present study offers a hydro-economic method for evaluating the effects of multiple of dams on river ecosystem services under various scenarios of spatially placed reservoirs. Tradeoff analysis between agricultural production and fish species richness is used to examine the economic and environmental feasibility of multiple dams at basin scale. Smaller reservoirs on basin tributaries maximize the value of stored water while benefiting both the economy and the environment.
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Hydrol. Earth Syst. Sci., 26, 2759–2778, https://doi.org/10.5194/hess-26-2759-2022, https://doi.org/10.5194/hess-26-2759-2022, 2022
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New techniques to monitor the performance of irrigation schemes are vital to improve land and water productivity. We developed a framework and applied the remotely sensed FAO WaPOR dataset to assess uniformity, equity, adequacy, and land and water productivity at the Xinavane sugarcane estate, segmented by three irrigation methods. The developed performance assessment framework and the Python script in Jupyter Notebooks can aid in such irrigation performance analysis in other regions.
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Hydrol. Earth Syst. Sci., 26, 885–902, https://doi.org/10.5194/hess-26-885-2022, https://doi.org/10.5194/hess-26-885-2022, 2022
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Urban water systems are facing an increasing pressure on their water resources to guarantee safe and sufficient water access. Water managers often use tried and tested strategies like large supply augmentation infrastructure to address water problems. However, these projects do not address key problems and cause water conflicts. We conducted transdisciplinary research to show how water conflicts can change the development pathway of urban water systems by implementing alternative solutions.
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Hydrol. Earth Syst. Sci., 24, 4903–4921, https://doi.org/10.5194/hess-24-4903-2020, https://doi.org/10.5194/hess-24-4903-2020, 2020
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Our research studies whether science depoliticizes water conflicts or instead conflicts politicize science–policy processes. We analyze a water conflict due to the development of large infrastructure. We interviewed key actors in the conflict and replicated the results of water resources models developed to solve the conflict. We found that knowledge produced in isolation has no positive effect in transforming the conflict; instead, its potential could be enhanced if produced collaboratively.
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Hydrol. Earth Syst. Sci., 22, 5781–5799, https://doi.org/10.5194/hess-22-5781-2018, https://doi.org/10.5194/hess-22-5781-2018, 2018
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Dirk-Jan Daniel Kok, Saket Pande, Angela Renata Cordeiro Ortigara, Hubert Savenije, and Stefan Uhlenbrook
Proc. IAHS, 376, 83–86, https://doi.org/10.5194/piahs-376-83-2018, https://doi.org/10.5194/piahs-376-83-2018, 2018
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Phosphorus is necessary for the development of crops and is therefore essential in safeguarding our food security. Several studies predict that our rock phosphate reserves, used to create synthetic, phosphatic fertilizers, may become depleted within this century. This study roughly approximates for which areas in Africa we can instead recover phosphorus from wastewater in order to reduce our dependancy on unsustainable rock phosphate.
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Hydrol. Earth Syst. Sci., 21, 2127–2142, https://doi.org/10.5194/hess-21-2127-2017, https://doi.org/10.5194/hess-21-2127-2017, 2017
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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
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E. Teferi, S. Uhlenbrook, and W. Bewket
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This study concludes that integrated analysis of course and fine-scale, inter-annual and intra-annual trends enables a more robust identification of changes in vegetation condition. Seasonal trend analysis was found to be very useful in identifying changes in vegetation condition that could be masked if only inter-annual vegetation trend analysis were performed. The finer-scale intra-annual trend analysis revealed trends that were more linked to human activities.
A. D. Clulow, C. S. Everson, M. G. Mengistu, J. S. Price, A. Nickless, and G. P. W. Jewitt
Hydrol. Earth Syst. Sci., 19, 2513–2534, https://doi.org/10.5194/hess-19-2513-2015, https://doi.org/10.5194/hess-19-2513-2015, 2015
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The 3rd paper in a series dealing with evaporation over indigenous vegetation in an area of South Africa experiencing severe water challenges. The area is a World Heritage site and an important conservation area in which our understanding of the water balance plays a crucial role in system management.
We provide the fist estimates of total evaporation from a subtropical peat swamp forest, investigate measurement techniques and provide modelling solutions to estimate long-term evaporation.
P. Trambauer, M. Werner, H. C. Winsemius, S. Maskey, E. Dutra, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 19, 1695–1711, https://doi.org/10.5194/hess-19-1695-2015, https://doi.org/10.5194/hess-19-1695-2015, 2015
F. E. F. Mussá, Y. Zhou, S. Maskey, I. Masih, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 19, 1093–1106, https://doi.org/10.5194/hess-19-1093-2015, https://doi.org/10.5194/hess-19-1093-2015, 2015
O. Munyaneza, A. Mukubwa, S. Maskey, S. Uhlenbrook, and J. Wenninger
Hydrol. Earth Syst. Sci., 18, 5289–5301, https://doi.org/10.5194/hess-18-5289-2014, https://doi.org/10.5194/hess-18-5289-2014, 2014
F. F. Worku, M. Werner, N. Wright, P. van der Zaag, and S. S. Demissie
Hydrol. Earth Syst. Sci., 18, 3837–3853, https://doi.org/10.5194/hess-18-3837-2014, https://doi.org/10.5194/hess-18-3837-2014, 2014
I. Masih, S. Maskey, F. E. F. Mussá, and P. Trambauer
Hydrol. Earth Syst. Sci., 18, 3635–3649, https://doi.org/10.5194/hess-18-3635-2014, https://doi.org/10.5194/hess-18-3635-2014, 2014
H. Calderon and S. Uhlenbrook
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hessd-11-9759-2014, https://doi.org/10.5194/hessd-11-9759-2014, 2014
Revised manuscript has not been submitted
P. Trambauer, S. Maskey, M. Werner, F. Pappenberger, L. P. H. van Beek, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 18, 2925–2942, https://doi.org/10.5194/hess-18-2925-2014, https://doi.org/10.5194/hess-18-2925-2014, 2014
S. Tekleab, J. Wenninger, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 18, 2415–2431, https://doi.org/10.5194/hess-18-2415-2014, https://doi.org/10.5194/hess-18-2415-2014, 2014
J. K. Kiptala, M. L. Mul, Y. A. Mohamed, and P. van der Zaag
Hydrol. Earth Syst. Sci., 18, 2287–2303, https://doi.org/10.5194/hess-18-2287-2014, https://doi.org/10.5194/hess-18-2287-2014, 2014
P. M. Nyenje, L. M. G. Meijer, J. W. Foppen, R. Kulabako, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 18, 1009–1025, https://doi.org/10.5194/hess-18-1009-2014, https://doi.org/10.5194/hess-18-1009-2014, 2014
H. H. G. Savenije, A. Y. Hoekstra, and P. van der Zaag
Hydrol. Earth Syst. Sci., 18, 319–332, https://doi.org/10.5194/hess-18-319-2014, https://doi.org/10.5194/hess-18-319-2014, 2014
P. Trambauer, E. Dutra, S. Maskey, M. Werner, F. Pappenberger, L. P. H. van Beek, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 18, 193–212, https://doi.org/10.5194/hess-18-193-2014, https://doi.org/10.5194/hess-18-193-2014, 2014
M. B. Mabrouk, A. Jonoski, D. Solomatine, and S. Uhlenbrook
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hessd-10-10873-2013, https://doi.org/10.5194/hessd-10-10873-2013, 2013
Revised manuscript not accepted
Y. Hu, S. Maskey, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 17, 2501–2514, https://doi.org/10.5194/hess-17-2501-2013, https://doi.org/10.5194/hess-17-2501-2013, 2013
Y. Zhou, J. Wenninger, Z. Yang, L. Yin, J. Huang, L. Hou, X. Wang, D. Zhang, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 17, 2435–2447, https://doi.org/10.5194/hess-17-2435-2013, https://doi.org/10.5194/hess-17-2435-2013, 2013
A. D. Clulow, C. S. Everson, J. S. Price, G. P. W. Jewitt, and B. C. Scott-Shaw
Hydrol. Earth Syst. Sci., 17, 2053–2067, https://doi.org/10.5194/hess-17-2053-2013, https://doi.org/10.5194/hess-17-2053-2013, 2013
T. Euser, H. C. Winsemius, M. Hrachowitz, F. Fenicia, S. Uhlenbrook, and H. H. G. Savenije
Hydrol. Earth Syst. Sci., 17, 1893–1912, https://doi.org/10.5194/hess-17-1893-2013, https://doi.org/10.5194/hess-17-1893-2013, 2013
H. H. Bulcock and G. P. W. Jewitt
Hydrol. Earth Syst. Sci., 16, 4693–4705, https://doi.org/10.5194/hess-16-4693-2012, https://doi.org/10.5194/hess-16-4693-2012, 2012
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Subject: Water Resources Management | Techniques and Approaches: Instruments and observation techniques
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Lukas Hallberg, Faruk Djodjic, and Magdalena Bieroza
Hydrol. Earth Syst. Sci., 28, 341–355, https://doi.org/10.5194/hess-28-341-2024, https://doi.org/10.5194/hess-28-341-2024, 2024
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Floodplains can be constructed along agricultural streams with the purpose of increasing water residence time, thereby reducing instream erosion and intercepting nutrient export. In this paper we show how this remediation measure can reduce phosphorus concentrations by up to 30 % through optimized floodplain designs and placement. These reductions were primarily facilitated by protection against erosion rather than by the promotion of deposition on floodplains.
Nkosinathi David Kaptein, Colin S. Everson, Alistair David Clulow, Michele Lynn Toucher, and Ilaria Germishuizen
Hydrol. Earth Syst. Sci., 27, 4467–4484, https://doi.org/10.5194/hess-27-4467-2023, https://doi.org/10.5194/hess-27-4467-2023, 2023
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Water-use studies comparing pine and Eucalyptus are limited. This study used internationally recognized methods to measure water use by Eucalyptus and pine over two seasons. Results showed that, over one season, pine used more water than Eucalyptus, which was contrary to previous long-term studies. However, the Eucalyptus site was found to be water stressed. This study concluded that the observed water stress and reduced transpiration rates must be included in hydrological models.
Henry Zimba, Miriam Coenders-Gerrits, Kawawa Banda, Bart Schilperoort, Nick van de Giesen, Imasiku Nyambe, and Hubert H. G. Savenije
Hydrol. Earth Syst. Sci., 27, 1695–1722, https://doi.org/10.5194/hess-27-1695-2023, https://doi.org/10.5194/hess-27-1695-2023, 2023
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Miombo woodland plants continue to lose water even during the driest part of the year. This appears to be facilitated by the adapted features such as deep rooting (beyond 5 m) with access to deep soil moisture, potentially even ground water. It appears the trend and amount of water that the plants lose is correlated more to the available energy. This loss of water in the dry season by miombo woodland plants appears to be incorrectly captured by satellite-based evaporation estimates.
R. Scott Winton, Silvia López-Casas, Daniel Valencia-Rodríguez, Camilo Bernal-Forero, Juliana Delgado, Bernhard Wehrli, and Luz Jiménez-Segura
Hydrol. Earth Syst. Sci., 27, 1493–1505, https://doi.org/10.5194/hess-27-1493-2023, https://doi.org/10.5194/hess-27-1493-2023, 2023
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Dams are an important and rapidly growing means of energy generation in the Tropical Andes of South America. To assess the impacts of dams in the region, we assessed differences in the upstream and downstream water quality of all hydropower dams in Colombia. We found evidence of substantial dam-induced changes in water temperature, dissolved oxygen concentration and suspended sediments. Dam-induced changes in Colombian waters violate regulations and are likely impacting aquatic life.
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
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The Belgian city of Spa is known worldwide for its ferruginous and naturally sparkling groundwater springs that gave their name to the bathing tradition commonly called
spa. However, the origin of the dissolved CO2 they contain was still a matter of debate. Thanks to new analysis on groundwater samples, particularly carbon and helium isotopes together with dissolved gases, this study has demonstrated that the volcanic origin of the CO2 is presumably from the neighboring Eifel volcanic fields.
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
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A methodology is developed for a new hydraulic characterization of continental hydrological basins. For this purpose, the division of wells into flow stretches with different hydraulic behaviour is made according to the results of the flowmeter, supposing that the hypothesis hydraulic heads of the deepest flow stretches of the well do not necessarily match the head shown by the overall well.
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
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The quality control and optimization of soil aquifer treatment (SAT) performance is challenging due to the multiple factors and costs involved. We installed in situ subsurface monitoring sensors that provided continuous high-resolution monitoring of the biochemical and physical conditions of an active SAT system. Data analysis facilitated the determination of the optimal drying and wetting stages, which are critical for suitable SAT management.
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
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Data support is crucial for the research of conflict and cooperation on transboundary rivers. Conventional, manual constructions of datasets cannot meet the requirements for fast updates in the big data era. This study brings up a revised methodological framework, based on the conventional method, and a toolkit for the news media dataset tracking of conflict and cooperation dynamics on transboundary rivers. A dataset with good tradeoffs between data relevance and coverage is generated.
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
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Sand dams capture and store water for use during the dry season in rural communities. A year long field study of three sand dams in Tanzania showed that sand dams are not a suitable habitat for aquatic insects. They capture plenty of water, but most is evaporated during the first few months of the dry season. Sand dams positively impact vegetation and minimally impact erosion. Community water security can be increased by sand dams, but site characteristics and construction are important factors.
Vincent Smets, Charlotte Wirion, Willy Bauwens, Martin Hermy, Ben Somers, and Boud Verbeiren
Hydrol. Earth Syst. Sci., 23, 3865–3884, https://doi.org/10.5194/hess-23-3865-2019, https://doi.org/10.5194/hess-23-3865-2019, 2019
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The impact of city trees for intercepting rainfall is quantified using measurements and modeling tools. The measurements show that an important amount of rainfall is intercepted, limiting the amount of water reaching the ground. Models are used to extrapolate the measurement results. The performance of two specialized interception models and one water balance model is evaluated. Our results show that the performance of the water balance model is similar to the specialized interception models.
Benjamin Mary, Luca Peruzzo, Jacopo Boaga, Myriam Schmutz, Yuxin Wu, Susan S. Hubbard, and Giorgio Cassiani
Hydrol. Earth Syst. Sci., 22, 5427–5444, https://doi.org/10.5194/hess-22-5427-2018, https://doi.org/10.5194/hess-22-5427-2018, 2018
Danielle K. Hare, David F. Boutt, William P. Clement, Christine E. Hatch, Glorianna Davenport, and Alex Hackman
Hydrol. Earth Syst. Sci., 21, 6031–6048, https://doi.org/10.5194/hess-21-6031-2017, https://doi.org/10.5194/hess-21-6031-2017, 2017
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This research examines what processes drive the location and strength of groundwater springs within a peatland environment. Using temperature and geophysical methods, we demonstrate that the relationship between regional groundwater flow gradients and the basin shape below the peatland surface control where groundwater springs occur. Understanding this relationship will support effective restoration efforts, as groundwater spring locations are important to overall peatland function and ecology.
Hang Zheng, Yang Hong, Di Long, and Hua Jing
Hydrol. Earth Syst. Sci., 21, 949–961, https://doi.org/10.5194/hess-21-949-2017, https://doi.org/10.5194/hess-21-949-2017, 2017
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Do you feel angry if the river in your living place is polluted by industries? Do you want to do something to save your environment? Just log in to http://www.thuhjjc.com and use the Tsinghua Environment Monitoring Platform (TEMP) to photograph the water pollution actives and make your report. This study established a social media platform to monitor and report surface water quality. The effectiveness of the platform was demonstrated by the 324 water quality reports across 30 provinces in China.
Matteo Giuliani, Andrea Castelletti, Roman Fedorov, and Piero Fraternali
Hydrol. Earth Syst. Sci., 20, 5049–5062, https://doi.org/10.5194/hess-20-5049-2016, https://doi.org/10.5194/hess-20-5049-2016, 2016
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The unprecedented availability of user-generated data on the Web is opening new opportunities for enhancing real-time monitoring and modeling of environmental systems based on data that are public, low-cost, and spatiotemporally dense. In this paper, we contribute a novel crowdsourcing procedure for extracting snow-related information from public web images. The value of the obtained virtual snow indexes is assessed for a real-world water management problem.
Tracy Ewen and Jan Seibert
Hydrol. Earth Syst. Sci., 20, 4079–4091, https://doi.org/10.5194/hess-20-4079-2016, https://doi.org/10.5194/hess-20-4079-2016, 2016
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Games are an optimal way to teach about water resource sharing, as they allow real-world scenarios to be explored. We look at how games can be used to teach about water resource sharing, by both playing and developing water games. An evaluation of the web-based game Irrigania found Irrigania to be an effective and easy tool to incorporate into curriculum, and a course on developing water games encouraged students to think about water resource sharing in a more critical and insightful way.
Frans C. van Geer, Brian Kronvang, and Hans Peter Broers
Hydrol. Earth Syst. Sci., 20, 3619–3629, https://doi.org/10.5194/hess-20-3619-2016, https://doi.org/10.5194/hess-20-3619-2016, 2016
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The paper includes a review of the current state of high-frequency monitoring in groundwater and surface waters as an outcome of a special issue of HESS and four sessions at EGU on this topic. The focus of the paper is to look at how high-frequency monitoring can be used as a valuable support to assess the management efforts under various EU directives. We conclude that we in future will see a transition from research to implementation in operational monitoring use of high-frequency sensors.
Matthew D. Berg, Franco Marcantonio, Mead A. Allison, Jason McAlister, Bradford P. Wilcox, and William E. Fox
Hydrol. Earth Syst. Sci., 20, 2295–2307, https://doi.org/10.5194/hess-20-2295-2016, https://doi.org/10.5194/hess-20-2295-2016, 2016
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Rangelands, from grasslands to woodlands, cover much of the earth. These areas face great pressure to meet growing water needs. Data on large-scale dynamics that drive water planning remain rare. Our watershed-scale results challenge simplistic hydrological assumptions. Streamflow was resilient to dramatic landscape changes. These changes did shape sediment yield, affecting water storage. Understanding these processes is vital to projections of rangeland water resources in a changing world.
Jimmy O'Keeffe, Wouter Buytaert, Ana Mijic, Nicholas Brozović, and Rajiv Sinha
Hydrol. Earth Syst. Sci., 20, 1911–1924, https://doi.org/10.5194/hess-20-1911-2016, https://doi.org/10.5194/hess-20-1911-2016, 2016
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Semi-structured interviews provide an effective and efficient way of collecting qualitative and quantitative data on water use practices. Interviews are organised around a topic guide, which helps lead the conversation while allowing sufficient opportunity to identify issues previously unknown to the researcher. The use of semi-structured interviews could significantly and quickly improve insight on water resources, leading to more realistic future management options and increased water security.
J. C. Rozemeijer, A. Visser, W. Borren, M. Winegram, Y. van der Velde, J. Klein, and H. P. Broers
Hydrol. Earth Syst. Sci., 20, 347–358, https://doi.org/10.5194/hess-20-347-2016, https://doi.org/10.5194/hess-20-347-2016, 2016
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Controlled drainage has been recognized as an effective option to optimize soil moisture conditions for agriculture and to reduce unnecessary losses of fresh water and nutrients. For a grassland field in the Netherlands, we measured the changes in the field water and solute balance after introducing controlled drainage. We concluded that controlled drainage reduced the drain discharge and increased the groundwater storage in the field, but did not have clear positive effects for water quality.
S. C. Sherriff, J. S. Rowan, A. R. Melland, P. Jordan, O. Fenton, and D. Ó hUallacháin
Hydrol. Earth Syst. Sci., 19, 3349–3363, https://doi.org/10.5194/hess-19-3349-2015, https://doi.org/10.5194/hess-19-3349-2015, 2015
A. Rautio, A.-L. Kivimäki, K. Korkka-Niemi, M. Nygård, V.-P. Salonen, K. Lahti, and H. Vahtera
Hydrol. Earth Syst. Sci., 19, 3015–3032, https://doi.org/10.5194/hess-19-3015-2015, https://doi.org/10.5194/hess-19-3015-2015, 2015
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Based on low-altitude aerial infrared surveys, around 370 groundwater–surface water interaction sites were located. Longitudinal temperature patterns, stable isotopes and dissolved silica composition of the studied rivers differed. Interaction sites identified in the proximity of 12 municipal water plants during low-flow seasons should be considered as potential risk areas during flood periods and should be taken under consideration in river basin management under changing climatic situations.
J. M. Campbell, P. Jordan, and J. Arnscheidt
Hydrol. Earth Syst. Sci., 19, 453–464, https://doi.org/10.5194/hess-19-453-2015, https://doi.org/10.5194/hess-19-453-2015, 2015
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High-resolution phosphorus and flow data were used to gauge the effects of diffuse (soil P) and point source (septic tank system) mitigation measures in two flashy headwater river catchments. Over 4 years the data indicated an overall increase in P concentration in defined high flow ranges and low flow P concentration showed little change. The work indicates fractured responses to catchment management advice and mitigation which were also affected by variations in seasonal hydrometeorology.
J. Audet, L. Martinsen, B. Hasler, H. de Jonge, E. Karydi, N. B. Ovesen, and B. Kronvang
Hydrol. Earth Syst. Sci., 18, 4721–4731, https://doi.org/10.5194/hess-18-4721-2014, https://doi.org/10.5194/hess-18-4721-2014, 2014
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The mitigation of excess nitrogen and phosphorus in river waters requires costly measures. Therefore it is essential to use reliable monitoring methods to select adequate mitigation strategies. Here we show that more development is needed before passive samplers can be considered as reliable alternative for sampling nutrients in stream. We also showed that although continuous sampling is expensive, its reliability precludes unnecessarily high implementation costs of mitigation measures.
C. Comina, M. Lasagna, D. A. De Luca, and L. Sambuelli
Hydrol. Earth Syst. Sci., 18, 3195–3203, https://doi.org/10.5194/hess-18-3195-2014, https://doi.org/10.5194/hess-18-3195-2014, 2014
M. Rusca, J. Heun, and K. Schwartz
Hydrol. Earth Syst. Sci., 16, 2749–2757, https://doi.org/10.5194/hess-16-2749-2012, https://doi.org/10.5194/hess-16-2749-2012, 2012
J. Rozemeijer, C. Siderius, M. Verheul, and H. Pomarius
Hydrol. Earth Syst. Sci., 16, 2405–2415, https://doi.org/10.5194/hess-16-2405-2012, https://doi.org/10.5194/hess-16-2405-2012, 2012
F. Jørgensen, W. Scheer, S. Thomsen, T. O. Sonnenborg, K. Hinsby, H. Wiederhold, C. Schamper, T. Burschil, B. Roth, R. Kirsch, and E. Auken
Hydrol. Earth Syst. Sci., 16, 1845–1862, https://doi.org/10.5194/hess-16-1845-2012, https://doi.org/10.5194/hess-16-1845-2012, 2012
J. Lange, S. Husary, A. Gunkel, D. Bastian, and T. Grodek
Hydrol. Earth Syst. Sci., 16, 715–724, https://doi.org/10.5194/hess-16-715-2012, https://doi.org/10.5194/hess-16-715-2012, 2012
T. T. Jin, B. J. Fu, G. H. Liu, and Z. Wang
Hydrol. Earth Syst. Sci., 15, 2519–2530, https://doi.org/10.5194/hess-15-2519-2011, https://doi.org/10.5194/hess-15-2519-2011, 2011
T. A. Endreny and M. M. Soulman
Hydrol. Earth Syst. Sci., 15, 2119–2126, https://doi.org/10.5194/hess-15-2119-2011, https://doi.org/10.5194/hess-15-2119-2011, 2011
N. Pasquale, P. Perona, P. Schneider, J. Shrestha, A. Wombacher, and P. Burlando
Hydrol. Earth Syst. Sci., 15, 1197–1212, https://doi.org/10.5194/hess-15-1197-2011, https://doi.org/10.5194/hess-15-1197-2011, 2011
B. M. Teklu, H. Tekie, M. McCartney, and S. Kibret
Hydrol. Earth Syst. Sci., 14, 2595–2603, https://doi.org/10.5194/hess-14-2595-2010, https://doi.org/10.5194/hess-14-2595-2010, 2010
T. Raziei, I. Bordi, L. S. Pereira, and A. Sutera
Hydrol. Earth Syst. Sci., 14, 1919–1930, https://doi.org/10.5194/hess-14-1919-2010, https://doi.org/10.5194/hess-14-1919-2010, 2010
S. L. Noorduijn, K. R. J. Smettem, R. Vogwill, and A. Ghadouani
Hydrol. Earth Syst. Sci., 13, 2095–2104, https://doi.org/10.5194/hess-13-2095-2009, https://doi.org/10.5194/hess-13-2095-2009, 2009
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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.
We studied long-term daily records of rainfall and streamflow of the Incomati River basin in...
