Articles | Volume 21, issue 9
https://doi.org/10.5194/hess-21-4533-2017
© Author(s) 2017. 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-21-4533-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
12 Sep 2017
Research article |
| 12 Sep 2017
Recent changes in terrestrial water storage in the Upper Nile Basin: an evaluation of commonly used gridded GRACE products
Mohammad Shamsudduha
CORRESPONDING AUTHOR
Institute for Risk and Disaster Reduction, University College London, London, UK
Department of Geography, University College London, London, UK
Richard G. Taylor
Department of Geography, University College London, London, UK
Darren Jones
Centre for Geography, Environment and Society, University of Exeter, Exeter, UK
Laurent Longuevergne
CNRS – UMR 6118 Géosciences Rennes, Université de Rennes 1, Rennes, France
Michael Owor
Department of Geology & Petroleum Studies, Makerere University, Kampala, Uganda
Callist Tindimugaya
Directorate of Water Resources Management, Ministry of Water & Environment, Entebbe, Uganda
Related authors
Anna Pazola, Mohammad Shamsudduha, Jon French, Alan M. MacDonald, Tamiru Abiye, Ibrahim Baba Goni, and Richard G. Taylor
Hydrol. Earth Syst. Sci., 28, 2949–2967, https://doi.org/10.5194/hess-28-2949-2024, https://doi.org/10.5194/hess-28-2949-2024, 2024
Short summary
Short summary
This study advances groundwater research using a high-resolution random forest model, revealing new recharge areas and spatial variability, mainly in humid regions. Limited data in rainy zones is a constraint for the model. Our findings underscore the promise of machine learning for large-scale groundwater modelling while further emphasizing the importance of data collection for robust results.
Mohammad Shamsudduha and Richard G. Taylor
Earth Syst. Dynam., 11, 755–774, https://doi.org/10.5194/esd-11-755-2020, https://doi.org/10.5194/esd-11-755-2020, 2020
Short summary
Short summary
Recent assessments of the sustainability of global groundwater resources using the Gravity Recovery and Climate Experiment (GRACE) satellites assume that the underlying trends are linear. Here, we assess recent changes in groundwater storage (ΔGWS) in the world’s large aquifer systems using an ensemble of GRACE datasets and show that trends are mostly non-linear. Non-linearity in ΔGWS derives, in part, from the episodic nature of groundwater replenishment associated with extreme precipitation.
Simon Opie, Richard G. Taylor, Chris M. Brierley, Mohammad Shamsudduha, and Mark O. Cuthbert
Earth Syst. Dynam., 11, 775–791, https://doi.org/10.5194/esd-11-775-2020, https://doi.org/10.5194/esd-11-775-2020, 2020
Short summary
Short summary
Knowledge of the relationship between climate and groundwater is limited and typically undermined by the scale, duration and accessibility of observations. Using monthly satellite measurements newly compiled over 14 years in the tropics and sub-tropics, we show that the imprint of precipitation history on groundwater, i.e. hydraulic memory, is longer in drylands than humid environments with important implications for the understanding and management of groundwater resources under climate change.
Seshagiri Rao Kolusu, Mohammad Shamsudduha, Martin C. Todd, Richard G. Taylor, David Seddon, Japhet J. Kashaigili, Girma Y. Ebrahim, Mark O. Cuthbert, James P. R. Sorensen, Karen G. Villholth, Alan M. MacDonald, and Dave A. MacLeod
Hydrol. Earth Syst. Sci., 23, 1751–1762, https://doi.org/10.5194/hess-23-1751-2019, https://doi.org/10.5194/hess-23-1751-2019, 2019
Anna Pazola, Mohammad Shamsudduha, Jon French, Alan M. MacDonald, Tamiru Abiye, Ibrahim Baba Goni, and Richard G. Taylor
Hydrol. Earth Syst. Sci., 28, 2949–2967, https://doi.org/10.5194/hess-28-2949-2024, https://doi.org/10.5194/hess-28-2949-2024, 2024
Short summary
Short summary
This study advances groundwater research using a high-resolution random forest model, revealing new recharge areas and spatial variability, mainly in humid regions. Limited data in rainy zones is a constraint for the model. Our findings underscore the promise of machine learning for large-scale groundwater modelling while further emphasizing the importance of data collection for robust results.
Ronan Abhervé, Clément Roques, Alexandre Gauvain, Laurent Longuevergne, Stéphane Louaisil, Luc Aquilina, and Jean-Raynald de Dreuzy
Hydrol. Earth Syst. Sci., 27, 3221–3239, https://doi.org/10.5194/hess-27-3221-2023, https://doi.org/10.5194/hess-27-3221-2023, 2023
Short summary
Short summary
We propose a model calibration method constraining groundwater seepage in the hydrographic network. The method assesses the hydraulic properties of aquifers in regions where perennial streams are directly fed by groundwater. The estimated hydraulic conductivity appear to be highly sensitive to the spatial extent and density of streams. Such an approach improving subsurface characterization from surface information is particularly interesting for ungauged basins.
Luca Guillaumot, Laurent Longuevergne, Jean Marçais, Nicolas Lavenant, and Olivier Bour
Hydrol. Earth Syst. Sci., 26, 5697–5720, https://doi.org/10.5194/hess-26-5697-2022, https://doi.org/10.5194/hess-26-5697-2022, 2022
Short summary
Short summary
Recharge, defining the renewal rate of groundwater resources, is difficult to estimate at basin scale. Here, recharge variations are inferred from water table variations recorded in boreholes. First, results show that aquifer-scale properties controlling these variations can be inferred from boreholes. Second, groundwater is recharged by both intense and seasonal rainfall. Third, the short-term contribution appears overestimated in recharge models and depends on the unsaturated zone thickness.
Lucas Pelascini, Philippe Steer, Maxime Mouyen, and Laurent Longuevergne
Nat. Hazards Earth Syst. Sci., 22, 3125–3141, https://doi.org/10.5194/nhess-22-3125-2022, https://doi.org/10.5194/nhess-22-3125-2022, 2022
Short summary
Short summary
Landslides represent a major natural hazard and are often triggered by typhoons. We present a new 2D model computing the respective role of rainfall infiltration, atmospheric depression and groundwater in slope stability during typhoons. The results show rainfall is the strongest factor of destabilisation. However, if the slope is fully saturated, near the toe of the slope or during the wet season, rainfall infiltration is limited and atmospheric pressure change can become the dominant factor.
Clément Roques, David E. Rupp, Jean-Raynald de Dreuzy, Laurent Longuevergne, Elizabeth R. Jachens, Gordon Grant, Luc Aquilina, and John S. Selker
Hydrol. Earth Syst. Sci., 26, 4391–4405, https://doi.org/10.5194/hess-26-4391-2022, https://doi.org/10.5194/hess-26-4391-2022, 2022
Short summary
Short summary
Streamflow dynamics are directly dependent on contributions from groundwater, with hillslope heterogeneity being a major driver in controlling both spatial and temporal variabilities in recession discharge behaviors. By analysing new model results, this paper identifies the major structural features of aquifers driving streamflow dynamics. It provides important guidance to inform catchment-to-regional-scale models, with key geological knowledge influencing groundwater–surface water interactions.
Nataline Simon, Olivier Bour, Mikaël Faucheux, Nicolas Lavenant, Hugo Le Lay, Ophélie Fovet, Zahra Thomas, and Laurent Longuevergne
Hydrol. Earth Syst. Sci., 26, 1459–1479, https://doi.org/10.5194/hess-26-1459-2022, https://doi.org/10.5194/hess-26-1459-2022, 2022
Short summary
Short summary
Groundwater discharge into streams plays a major role in the preservation of stream ecosystems. There were two complementary methods, both based on the use of the distributed temperature sensing technology, applied in a headwater catchment. Measurements allowed us to characterize the spatial and temporal patterns of groundwater discharge and quantify groundwater inflows into the stream, opening very promising perspectives for a novel characterization of the groundwater–stream interface.
Tom Gleeson, Thorsten Wagener, Petra Döll, Samuel C. Zipper, Charles West, Yoshihide Wada, Richard Taylor, Bridget Scanlon, Rafael Rosolem, Shams Rahman, Nurudeen Oshinlaja, Reed Maxwell, Min-Hui Lo, Hyungjun Kim, Mary Hill, Andreas Hartmann, Graham Fogg, James S. Famiglietti, Agnès Ducharne, Inge de Graaf, Mark Cuthbert, Laura Condon, Etienne Bresciani, and Marc F. P. Bierkens
Geosci. Model Dev., 14, 7545–7571, https://doi.org/10.5194/gmd-14-7545-2021, https://doi.org/10.5194/gmd-14-7545-2021, 2021
Short summary
Short summary
Groundwater is increasingly being included in large-scale (continental to global) land surface and hydrologic simulations. However, it is challenging to evaluate these simulations because groundwater is
hiddenunderground and thus hard to measure. We suggest using multiple complementary strategies to assess the performance of a model (
model evaluation).
Maxime Mouyen, Romain Plateaux, Alexander Kunz, Philippe Steer, and Laurent Longuevergne
Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2021-233, https://doi.org/10.5194/gmd-2021-233, 2021
Preprint withdrawn
Short summary
Short summary
LAPS is an easy to use Matlab code that allows simulating the transport of particles in the ocean without any programming requirement. The simulation is based on publicly available ocean current velocity fields and allows to output particles spatial distribution and trajectories at time intervals defined by the user. After explaining how LAPS is working, we show a few examples of applications for studying sediment transport or plastic littering. The code is available on Github.
Simon Deggim, Annette Eicker, Lennart Schawohl, Helena Gerdener, Kerstin Schulze, Olga Engels, Jürgen Kusche, Anita T. Saraswati, Tonie van Dam, Laura Ellenbeck, Denise Dettmering, Christian Schwatke, Stefan Mayr, Igor Klein, and Laurent Longuevergne
Earth Syst. Sci. Data, 13, 2227–2244, https://doi.org/10.5194/essd-13-2227-2021, https://doi.org/10.5194/essd-13-2227-2021, 2021
Short summary
Short summary
GRACE provides us with global changes of terrestrial water storage. However, the data have a low spatial resolution, and localized storage changes in lakes/reservoirs or mass change due to earthquakes causes leakage effects. The correction product RECOG RL01 presented in this paper accounts for these effects. Its application allows for improving calibration/assimilation of GRACE into hydrological models and better drought detection in earthquake-affected areas.
Mohammad Shamsudduha and Richard G. Taylor
Earth Syst. Dynam., 11, 755–774, https://doi.org/10.5194/esd-11-755-2020, https://doi.org/10.5194/esd-11-755-2020, 2020
Short summary
Short summary
Recent assessments of the sustainability of global groundwater resources using the Gravity Recovery and Climate Experiment (GRACE) satellites assume that the underlying trends are linear. Here, we assess recent changes in groundwater storage (ΔGWS) in the world’s large aquifer systems using an ensemble of GRACE datasets and show that trends are mostly non-linear. Non-linearity in ΔGWS derives, in part, from the episodic nature of groundwater replenishment associated with extreme precipitation.
Simon Opie, Richard G. Taylor, Chris M. Brierley, Mohammad Shamsudduha, and Mark O. Cuthbert
Earth Syst. Dynam., 11, 775–791, https://doi.org/10.5194/esd-11-775-2020, https://doi.org/10.5194/esd-11-775-2020, 2020
Short summary
Short summary
Knowledge of the relationship between climate and groundwater is limited and typically undermined by the scale, duration and accessibility of observations. Using monthly satellite measurements newly compiled over 14 years in the tropics and sub-tropics, we show that the imprint of precipitation history on groundwater, i.e. hydraulic memory, is longer in drylands than humid environments with important implications for the understanding and management of groundwater resources under climate change.
Tom Gleeson, Thorsten Wagener, Petra Döll, Samuel C. Zipper, Charles West, Yoshihide Wada, Richard Taylor, Bridget Scanlon, Rafael Rosolem, Shams Rahman, Nurudeen Oshinlaja, Reed Maxwell, Min-Hui Lo, Hyungjun Kim, Mary Hill, Andreas Hartmann, Graham Fogg, James S. Famiglietti, Agnès Ducharne, Inge de Graaf, Mark Cuthbert, Laura Condon, Etienne Bresciani, and Marc F. P. Bierkens
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2020-378, https://doi.org/10.5194/hess-2020-378, 2020
Revised manuscript not accepted
Maxime Mouyen, Philippe Steer, Kuo-Jen Chang, Nicolas Le Moigne, Cheinway Hwang, Wen-Chi Hsieh, Louise Jeandet, Laurent Longuevergne, Ching-Chung Cheng, Jean-Paul Boy, and Frédéric Masson
Earth Surf. Dynam., 8, 555–577, https://doi.org/10.5194/esurf-8-555-2020, https://doi.org/10.5194/esurf-8-555-2020, 2020
Short summary
Short summary
Land erosion creates sediment particles that are redistributed from mountains to oceans through climatic, tectonic and human activities, but measuring the mass of redistributed sediment is difficult. Here we describe a new method combining gravity and photogrammetry measurements, which make it possible to weigh the mass of sediment redistributed by a landslide and a river in Taiwan from 2015 to 2017. Trying this method in other regions will help us to better understand the erosion process.
Jean-Pierre Vergnes, Nicolas Roux, Florence Habets, Philippe Ackerer, Nadia Amraoui, François Besson, Yvan Caballero, Quentin Courtois, Jean-Raynald de Dreuzy, Pierre Etchevers, Nicolas Gallois, Delphine J. Leroux, Laurent Longuevergne, Patrick Le Moigne, Thierry Morel, Simon Munier, Fabienne Regimbeau, Dominique Thiéry, and Pascal Viennot
Hydrol. Earth Syst. Sci., 24, 633–654, https://doi.org/10.5194/hess-24-633-2020, https://doi.org/10.5194/hess-24-633-2020, 2020
Short summary
Short summary
The AquiFR hydrogeological modelling platform aims to provide
short-term-to-seasonal hydrological forecasts over France for daily water management and long-term simulations for climate impact studies. The results described in this study confirm the feasibility of gathering independent groundwater models into the same numerical tool. This new tool encourages the development of groundwater modelling, and it has the potential to be valuable for many operational and research applications.
Seshagiri Rao Kolusu, Mohammad Shamsudduha, Martin C. Todd, Richard G. Taylor, David Seddon, Japhet J. Kashaigili, Girma Y. Ebrahim, Mark O. Cuthbert, James P. R. Sorensen, Karen G. Villholth, Alan M. MacDonald, and Dave A. MacLeod
Hydrol. Earth Syst. Sci., 23, 1751–1762, https://doi.org/10.5194/hess-23-1751-2019, https://doi.org/10.5194/hess-23-1751-2019, 2019
L. Longuevergne, C. R. Wilson, B. R. Scanlon, and J. F. Crétaux
Hydrol. Earth Syst. Sci., 17, 4817–4830, https://doi.org/10.5194/hess-17-4817-2013, https://doi.org/10.5194/hess-17-4817-2013, 2013
Related subject area
Subject: Groundwater hydrology | Techniques and Approaches: Remote Sensing and GIS
Influence of intensive agriculture and geological heterogeneity on the recharge of an arid aquifer system (Saq–Ram, Arabian Peninsula) inferred from GRACE data
Evaluating downscaling methods of GRACE (Gravity Recovery and Climate Experiment) data: a case study over a fractured crystalline aquifer in southern India
Preprocessing approaches in machine-learning-based groundwater potential mapping: an application to the Koulikoro and Bamako regions, Mali
Applicability of Landsat 8 thermal infrared sensor for identifying submarine groundwater discharge springs in the Mediterranean Sea basin
Unsaturated zone model complexity for the assimilation of evapotranspiration rates in groundwater modelling
Technical note: Water table mapping accounting for river–aquifer connectivity and human pressure
Estimating long-term groundwater storage and its controlling factors in Alberta, Canada
Mapping irrigation potential from renewable groundwater in Africa – a quantitative hydrological approach
How to identify groundwater-caused thermal anomalies in lakes based on multi-temporal satellite data in semi-arid regions
Statistical analysis to characterize transport of nutrients in groundwater near an abandoned feedlot
Hydrogeological settings of a volcanic island (San Cristóbal, Galapagos) from joint interpretation of airborne electromagnetics and geomorphological observations
Shallow groundwater effect on land surface temperature and surface energy balance under bare soil conditions: modeling and description
Reconnoitering the effect of shallow groundwater on land surface temperature and surface energy balance using MODIS and SEBS
Derivation of groundwater flow-paths based on semi-automatic extraction of lineaments from remote sensing data
Groundwater use for irrigation – a global inventory
Pierre Seraphin, Julio Gonçalvès, Bruno Hamelin, Thomas Stieglitz, and Pierre Deschamps
Hydrol. Earth Syst. Sci., 26, 5757–5771, https://doi.org/10.5194/hess-26-5757-2022, https://doi.org/10.5194/hess-26-5757-2022, 2022
Short summary
Short summary
This study assesses the detailed water budget of the Saq–Ram Aquifer System using satellite gravity data. Spatial heterogeneities regarding the groundwater recharge were identified: (i) irrigation excess is great enough to artificially recharge the aquifer; and (ii) volcanic lava deposits, which cover 8% of the domain, contribute to more than 50% of the total natural recharge. This indicates a major control of geological context on arid aquifer recharge, which has been poorly discussed hitherto.
Claire Pascal, Sylvain Ferrant, Adrien Selles, Jean-Christophe Maréchal, Abhilash Paswan, and Olivier Merlin
Hydrol. Earth Syst. Sci., 26, 4169–4186, https://doi.org/10.5194/hess-26-4169-2022, https://doi.org/10.5194/hess-26-4169-2022, 2022
Short summary
Short summary
This paper presents a new validation method for the downscaling of GRACE (Gravity Recovery and Climate Experiment) data. It measures the improvement of the downscaled data against the low-resolution data in both temporal and, for the first time, spatial domains. This validation method offers a standardized and comprehensive framework to interpret spatially and temporally the quality of the downscaled products, supporting future efforts in GRACE downscaling methods.
Víctor Gómez-Escalonilla, Pedro Martínez-Santos, and Miguel Martín-Loeches
Hydrol. Earth Syst. Sci., 26, 221–243, https://doi.org/10.5194/hess-26-221-2022, https://doi.org/10.5194/hess-26-221-2022, 2022
Short summary
Short summary
Many communities in the Sahel rely solely on groundwater. We develop a machine learning technique to map areas of groundwater potential. Algorithms are trained to detect areas where there is a confluence of factors that facilitate groundwater occurrence. Our contribution focuses on using variable scaling to minimize expert bias and on testing our results beyond standard metrics. This approach is illustrated through its application to two administrative regions of Mali.
Sònia Jou-Claus, Albert Folch, and Jordi Garcia-Orellana
Hydrol. Earth Syst. Sci., 25, 4789–4805, https://doi.org/10.5194/hess-25-4789-2021, https://doi.org/10.5194/hess-25-4789-2021, 2021
Short summary
Short summary
Satellite thermal infrared (TIR) remote sensing is a useful method for identifying coastal springs in karst aquifers both locally and regionally. The limiting factors include technical limitations, geological and hydrogeological characteristics, environmental and marine conditions, and coastal geomorphology. Also, it can serve as a tool to use for a first screening of the coastal water surface temperature to identify possible thermal anomalies that will help narrow the sampling survey.
Simone Gelsinari, Valentijn R. N. Pauwels, Edoardo Daly, Jos van Dam, Remko Uijlenhoet, Nicholas Fewster-Young, and Rebecca Doble
Hydrol. Earth Syst. Sci., 25, 2261–2277, https://doi.org/10.5194/hess-25-2261-2021, https://doi.org/10.5194/hess-25-2261-2021, 2021
Short summary
Short summary
Estimates of recharge to groundwater are often driven by biophysical processes occurring in the soil column and, particularly in remote areas, are also always affected by uncertainty. Using data assimilation techniques to merge remotely sensed observations with outputs of numerical models is one way to reduce this uncertainty. Here, we show the benefits of using such a technique with satellite evapotranspiration rates and coupled hydrogeological models applied to a semi-arid site in Australia.
Mathias Maillot, Nicolas Flipo, Agnès Rivière, Nicolas Desassis, Didier Renard, Patrick Goblet, and Marc Vincent
Hydrol. Earth Syst. Sci., 23, 4835–4849, https://doi.org/10.5194/hess-23-4835-2019, https://doi.org/10.5194/hess-23-4835-2019, 2019
Soumendra N. Bhanja, Xiaokun Zhang, and Junye Wang
Hydrol. Earth Syst. Sci., 22, 6241–6255, https://doi.org/10.5194/hess-22-6241-2018, https://doi.org/10.5194/hess-22-6241-2018, 2018
Short summary
Short summary
The paper presents groundwater storage conditions in all the major river basins across Alberta, Canada. We used remote-sensing data and investigate their performance using available ground-based data of groundwater level monitoring, storage coefficients, aquifer thickness, and surface water measurements. The water available for groundwater recharge has been studied in detail. Separate approaches have been followed for confined and unconfined aquifers for estimating groundwater storage.
Y. Altchenko and K. G. Villholth
Hydrol. Earth Syst. Sci., 19, 1055–1067, https://doi.org/10.5194/hess-19-1055-2015, https://doi.org/10.5194/hess-19-1055-2015, 2015
U. Mallast, R. Gloaguen, J. Friesen, T. Rödiger, S. Geyer, R. Merz, and C. Siebert
Hydrol. Earth Syst. Sci., 18, 2773–2787, https://doi.org/10.5194/hess-18-2773-2014, https://doi.org/10.5194/hess-18-2773-2014, 2014
P. Gbolo and P. Gerla
Hydrol. Earth Syst. Sci., 17, 4897–4906, https://doi.org/10.5194/hess-17-4897-2013, https://doi.org/10.5194/hess-17-4897-2013, 2013
A. Pryet, N. d'Ozouville, S. Violette, B. Deffontaines, and E. Auken
Hydrol. Earth Syst. Sci., 16, 4571–4579, https://doi.org/10.5194/hess-16-4571-2012, https://doi.org/10.5194/hess-16-4571-2012, 2012
F. Alkhaier, G. N. Flerchinger, and Z. Su
Hydrol. Earth Syst. Sci., 16, 1817–1831, https://doi.org/10.5194/hess-16-1817-2012, https://doi.org/10.5194/hess-16-1817-2012, 2012
F. Alkhaier, Z. Su, and G. N. Flerchinger
Hydrol. Earth Syst. Sci., 16, 1833–1844, https://doi.org/10.5194/hess-16-1833-2012, https://doi.org/10.5194/hess-16-1833-2012, 2012
U. Mallast, R. Gloaguen, S. Geyer, T. Rödiger, and C. Siebert
Hydrol. Earth Syst. Sci., 15, 2665–2678, https://doi.org/10.5194/hess-15-2665-2011, https://doi.org/10.5194/hess-15-2665-2011, 2011
S. Siebert, J. Burke, J. M. Faures, K. Frenken, J. Hoogeveen, P. Döll, and F. T. Portmann
Hydrol. Earth Syst. Sci., 14, 1863–1880, https://doi.org/10.5194/hess-14-1863-2010, https://doi.org/10.5194/hess-14-1863-2010, 2010
Cited articles
A, G., Wahr, J., and Zhong, S.: Computations of the viscoelastic response of a 3-D compressible Earth to surface loading: an application to Glacial Isostatic Adjustment in Antarctica and Canada, Geophys. J. Int., 192, 557–572, https://doi.org/10.1093/gji/ggs030, 2013.
Arendt, A. A., Luthcke, S. B., Gardner, A. S., O'Neel, S., Hill, D., Moholdt, G., and Abdalati, W.: Analysis of a GRACE global mascon solution for Gulf of Alaska glaciers, J. Glaciol., 59, 913–924, 2013.
Awange, J. L., Sharifi, M. A., Ogonda, G., Wickert, J., Grafarend, E., and Omulo, M.: The falling Lake Victoria water levels: GRACE, TRIMM and CHAMP satellite analysis of the lake basin, Water Resour. Manag., 22, 775–796, 2008.
Awange, J. L., Anyah, R., Agola, N., Forootan, E., and Omondi, P.: Potential impacts of climate and environmental change on the stored water of Lake Victoria Basin and economic implications, Water Resour. Res., 49, 8160–8173, 2013.
Awange, J. L., Forootan, E., Kuhn, M., Kusche, J., and Heck, B.: Water storage changes and climate variability within the Nile Basin between 2002 and 2011, Adv. Water Resour., 73, 1–15, 2014.
Basalirwa, C. P. K.: Delineation of Uganda into climatological rainfall zones using the method of Principle Component Analysis, Int. J. Climatol., 15, 1161–1177, 1995.
Becker, M., Llovel, W., Cazenave, A., Güntner, A., and Crétaux, J.-F.: Recent hydrological behaviour of the East African great lakes region inferred from GRACE, satellite altimetry and rainfall observations, C. R. Geosci., 342, 223–233, 2010.
Biancale, R., Lemoine, J.-M., Balmino, G., Loyer, S., Bruisma, S., Perosanz, F., Marty, J.-C., and Gégout, P.: 3 Years of Geoid Variations from GRACE and LAGEOS Data at 10-day Intervals from July 2002 to March 2005, CNES/GRGS, 2006.
Brown, E. and Sutcliffe, J. V.: The water balance of Lake Kyoga, Uganda, Hydrolog. Sci. J., 58, 342–353, https://doi.org/10.1080/02626667.2012.753148, 2013.
Bruinsma, S., Lemoine, J.-M., and Biancale, R.: CNES/GRGS 10-day gravity field models (release 2) and their evaluation Adv. Space Res., 45, 587–601, https://doi.org/10.1016/j.asr.2009.10.012, 2010.
Burgess, W. G., Shamsudduha, M., Taylor, R. G., Zahid, A., Ahmed, K. M., Mukherjee, A., Lapworth, D. J., and Bense, V. F.: Terrestrial water load and groundwater fluctuation in the Bengal Basin, Scientific Reports, 7, 3872, https://doi.org/10.1038/s41598-017-04159-w, 2017.
Castellazzi, P., Martel, R., Galloway, D. L., Longuevergne, L., and Rivera, A.: Assessing Groundwater Depletion and Dynamics Using GRACE and InSAR: Potential and Limitations, Ground Water, 54, 768–780, https://doi.org/10.1111/gwat.12453, 2016.
Chen, J. L., Wilson, C. R., and Tapley, B. D.: The 2009 exceptional Amazon flood and interannual terrestrial water storage change observed by GRACE, Water Resour. Res., 46, W12526, https://doi.org/10.1029/2010WR009383, 2010.
Dai, Y., Zeng, X., Dickinson, R. E., Baker, I., Bonan, G. B., Bosilovich, M. G., Denning, A. S., Dirmeyer, P. A., Houser, P. R., Niu, G., Oleson, K. W., Schlosser, C. A., and Yang, Z.-L.: The common land model (CLM), B. Am. Meteorol. Soc., 84, 1013–1023, 2003.
Ek, M. B., Mitchell, K. E., Lin, Y., Rogers, E., Grunmann, P., Koren, V., Gayno, G., and Tarpley, J. D.: Implementation of Noah land surface model advances in the National Centers for Environmental Prediction operational mesoscale Eta model, J. Geophys. Res., 108, 8851, https://doi.org/10.1029/2002JD003296, 2003.
Famiglietti, J. S., Lo, M., Ho, S. L., Bethune, J., Anderson, K. J., Syed, T. H., Swenson, S. C., de Linage, C. R., and Rodell, M.: Satellites measure recent rates of groundwater depletion in California's Central Valley, Geophys. Res. Lett., 38, L03403, https://doi.org/10.1029/2010GL046442, 2011.
Frappart, F., Ramillien, G., and Famiglietti, J. S.: Water balance of the Arctic drainage system using GRACE gravimetry products, Int. J. Remote Sens., 32, 431–453, https://doi.org/10.1080/01431160903474954, 2011.
Güntner, A.: Improvement of Global Hydrological Models Using GRACE Data, Surv. Geophys., 29, 375–397, 2008.
Hoogeveen, J., Faurès, J.-M., Peiser, L., Burke, J., and van de Giesen, N.: GlobWat – a global water balance model to assess water use in irrigated agriculture, Hydrol. Earth Syst. Sci., 19, 3829–3844, https://doi.org/10.5194/hess-19-3829-2015, 2015.
Hu, L. and Jiao, J. J.: Calibration of a large-scale groundwater flow model using GRACE data: a case study in the Qaidam Basin, China, Hydrogeol. J., 23, 1305–1317, 2015.
Huffman, G. J., Adler, R. F., Bolvin, D. T., Gu, G., Nelkin, E. J., Bowman, K. P., Hong, Y., Stocker, E. F., and Wolff, D. B.: The TRMM multi-satellite precipitation analysis: quasi-global, multi-year, combined-sensor precipitation estimates at fine scale, J. Hydrometeorol., 8, 38–55, 2007.
Humphrey, V., Gudmundsson, L., and Seneviratne, S. I.: Assessing Global Water Storage Variability from GRACE: Trends, Seasonal Cycle, Subseasonal Anomalies and Extremes, Surv. Geophys., 37, 357–395, https://doi.org/10.1007/s10712-016-9367-1, 2016.
Indeje, M., Semazzi, F. H. M., and Ogallo, L. J.: ENSO signals in East African rainfall seasons, Int. J. Climatol., 20, 19–46, 2000.
Jacob, T., Wahr, J., Pfeffer, W. T., and Swenson, S.: Recent contributions of glaciers and ice caps to sea level rise, Nature, 482, 514–518, 2012.
Jiang, D., Wang, J., Huang, Y., Zhou, K., Ding, X., and Fu, J.: The Review of GRACE Data Applications in Terrestrial Hydrology Monitoring, Advances in Meteorology, 2014, 725131, https://doi.org/10.1155/2014/725131, 2014.
Khandu, Forootan, E., Schumacher, M., Awange, J. L., and Schmied, H. M.: Exploring the influence of precipitation extremes and humanwater use on total water storage (TWS)changes in the Ganges-Brahmaputra-Meghna River Basin, Water Resour. Res., 52, 2240–2258, https://doi.org/10.1002/2015WR018113, 2016.
Kim, H., Yeh, P. J.-F., Oki, T., and Kanae, S.: Role of rivers in the seasonal variations of terrestrial water storage over global basins, Geophys. Res. Lett., 36, L17402, https://doi.org/10.1029/2009GL039006, 2009.
Kizza, M., Westerberg, I., Rodhe, A., and Ntale, H.: Estimating areal rainfall over Lake Victoria and its basin using ground-based and satellite data, J. Hydrol., 464–465, 401–411, 2012.
Krishnamurthy, K. V. and Ibrahim, A. M.: Hydrometeorological Studies of Lakes Victoria, Kyoga, and Albert, in: Man-made Lakes: Their Problems and Environmental Effects, edited by: Ackermann, W. C., White, G. F., Worthington, E. B., and Ivens, J. L., American Geophysical Union, Washington D.C., 272–277, 1973.
Kusche, J., Eicker, A., Forootan, E., Springer, A., and Longuevergne, L.: Mapping probabilities of extreme continental water storage changes from space gravimetry, Geophys. Res. Lett., 43, 8026–8034, https://doi.org/10.1002/2016GL069538, 2016.
Landerer, F. W. and Swenson, S. C.: Accuracy of scaled GRACE terrestrial water storage estimates, Water Resour. Res., 48, W04531, https://doi.org/10.1029/2011WR011453, 2012.
Leblanc, M. J., Tregoning, P., Ramillien, G., Tweed, S. O., and Fakes, A.: Basin-scale, integrated observations of the early 21st century multiyear drought in southeast Australia, Water Resour. Res., 45, W04408, https://doi.org/10.1029/2008WR007333, 2009.
Lehner, B., Verdin, K., and Jarvis, A.: HydroSHEDS technical documentation, World Wildlife Fund, Washington D.C., 2006.
Lehner, B., Verdin, K., and Jarvis, A.: New global hydrography derived from spaceborne elevation data, Eos T. Am. Geophys. Un., 89, 93–94, 2008.
Lemoine, J.-M., Bruisma, S., Loyer, S., Biancale, R., Marty, J.-C., Perosanz, F., and Balmino, G.: Temporal gravity field models inferred from GRACE data, Adv. Space Res., 39, 1620–1629, https://doi.org/10.1016/j.asr.2007.03.062, 2007.
Liang, X., Xie, Z., and Huang, M.: A new parameterization for surface and groundwater interactions and its impact on water budgets with the variable infiltration capacity (VIC) land surface model, J. Geophys. Res., 108, 8613, https://doi.org/10.1029/2002JD003090, 2003.
Long, D., Longuevergne, L., and Scanlon, B. R.: Global analysis of approaches for deriving total waterstorage changes from GRACE satellites, Water Resour. Res., 51, 2574–2594, https://doi.org/10.1002/2014WR016853, 2015.
Long, D., Chen, X., Scanlon, B. R., Wada, Y., Hong, Y., Singh, V. P., Chen, Y., Wang, C., Han, Z., and Yang, W.: Have GRACE satellites overestimated groundwater depletion in the Northwest India Aquifer?, Nature Scientific Reports, 6, 24398, https://doi.org/10.1038/srep24398, 2016.
Long, D., Pan, Y., Zhou, J., Chen, Y., Hou, X., Hong, Y., Scanlon, B. R., and Longuevergne, L.: Global analysis of spatiotemporal variability in merged total water storage changes using multiple GRACE products and global hydrological models, Remote Sens. Environ., 192, 198–216, 2017.
Longuevergne, L., Scanlon, B. R., and Wilson, C. R.: GRACE hydrological estimates for small basins: evaluating processing approaches on the High Plains Aquifer, USA, Water Resour. Res., 46, W11517, https://doi.org/10.1029/2009WR008564, 2010.
Longuevergne, L., Wilson, C. R., Scanlon, B. R., and Crétaux, J. F.: GRACE water storage estimates for the Middle East and other regions with significant reservoir and lake storage, Hydrol. Earth Syst. Sci., 17, 4817–4830, https://doi.org/10.5194/hess-17-4817-2013, 2013.
MacDonald, A. M., Bonsor, H. C., Dochartaigh, B. E. O., and Taylor, R. G.: Quantitative maps of groundwater resources in Africa, Environ. Res. Lett., 7, 024009, https://doi.org/10.1088/1748-9326/7/2/024009, 2012.
Nanteza, J., de Linage, C. R., Thomas, B. F., and Famiglietti, J. S.: Monitoring groundwater storage changes in complex basement aquifers: An evaluation of the GRACE satellites over East Africa, Water Resour. Res., 52, 9542–9564, https://doi.org/10.1002/2016WR018846, 2016.
Nicholson, S. E., Yin, X., and Ba, M. B.: On the feasibility of using a lake water balance model to infer rainfall: an example from Lake Victoria, Hydrolog. Sci. J., 45, 75–95, 2000.
Niu, G.-Y., Yang, Z.-L., Dickinson, R. E., Gulden, L. E., and Su, H.: Development of a simple groundwater model for use in climate models and evaluation with Gravity Recovery and Climate Experiment data, J. Geophys. Res., 112, D07103, https://doi.org/10.1029/2006JD007522, 2007.
Oleson, K. W., Niu, G.-Y., Yang, Z.-L., Lawrence, D. M., Thornton, P. E., Lawrence, P. J., Stockli, R., Dickinson, R. E., Bonan, G. B., Levis, S., Dai, A., and Qian, T.: Improvements to the Community Land Model and their impact on the hydrological cycle, J. Geophys. Res., 113, G01021, https://doi.org/10.1029/2007JG000563, 2008.
Owor, M.: Groundwater – surface water interactions on deeply weathered surfaces of low relief in the Upper Nile Basin of Uganda, PhD thesis, Geography, University College London, London, 271 pp., 2010.
Owor, M., Taylor, R. G., Tindimugaya, C., and Mwesigwa, D.: Rainfall intensity and groundwater recharge: empirical evidence from the Upper Nile Basin, Environ. Res. Lett., 4, 035009, https://doi.org/10.1088/1748-9326/4/3/035009, 2009.
Owor, M., Taylor, R. G., Mukwaya, C., and Tindimugaya, C.: Groundwater/surface-water interactions on deeply weathered surfaces of low relief: evidence from Lakes Victoria and Kyoga, Uganda, Hydrogeol. J., 19, 1403–1420, 2011.
Ramillien, G., Famiglietti, J. S., and Wahr, J.: Detection of Continental Hydrology and Glaciology Signals from GRACE: A Review, Surv. Geophys., 29, 361–374, 2008.
Rodell, M. and Famiglietti, J. S.: Terrestrial Water Storage Variations over Illinois: Analysis of Observations and Implications for GRACE, Water Resour. Res., 37, 1327–1340, 2001.
Rodell, M., Houser, P. R., Jambor, U., Gottschalck, J., Mitchell, K., Meng, C.-J., Arsenault, K., Cosgrove, B., Radakovich, J., Bosilovich, M., Entin, J. K., Walker, J. P., Lohmann, D., and Toll, D.: The Global Land Data Assimilation System, B. Am. Meteorol. Soc., 85, 381–394, 2004.
Rodell, M., Velicogna, I., and Famiglietti, J. S.: Satellite-based estimates of groundwater depletion in India, Nature, 460, 999–1003, https://doi.org/10.1038/nature08238, 2009.
Rowlands, D. D., Luthcke, S. B., McCarthy, J. J., Klosko, S. M., Chinn, D. S., Lemoine, F. G., Boy, J.-P., and Sabaka, T. J.: Global mass fluxsolutions from GRACE: A comparison of parameter estimation strategies-Mass concentrations versus stokes coe?cients, J. Geophys. Res., 115, B01403, https://doi.org/10.1029/2009JB006546, 2010.
Scanlon, B. R., Longuevergne, L., and Long, D.: Ground referencing GRACE satellite estimates of groundwater storage changes in the California Central Valley, USA, Water Resour. Res., 48, W04520, https://doi.org/10.1029/2011WR011312, 2012.
Scanlon, B. R., Zhang, Z., Reedy, R. C., Pool, D. R., Save, H., Long, D., Chen, J., Wolock, D. M., Conway, B. D., and Winester, D.: Hydrologic implications of GRACE satellite data in the Colorado River Basin, Water Resour. Res., 51, 9891–9903, https://doi.org/10.1002/2015WR018090, 2015.
Scanlon, B. R., Zhang, Z., Save, H., Wiese, D. N., Landerer, F. W., Long, D., Longuevergne, L., and Chen, J.: Global evaluation of new GRACE mascon products for hydrologic applications, Water Resour. Res., 52, 9412–9429, https://doi.org/10.1002/2016WR019494, 2016.
Sene, K. J. and Plinston, D. T.: A review and update of the hydrology of Lake Victoria in East Africa, Hydrolog. Sci. J., 39, 47–63, 1994.
Shamsudduha, M., Taylor, R. G., and Longuevergne, L.: Monitoring groundwater storage changes in the highly seasonal humid tropics: validation of GRACE measurements in the Bengal Basin, Water Resour. Res., 48, W02508, https://doi.org/10.1029/2011WR010993, 2012.
Strassberg, G., Scanlon, B. R., and Rodell, M.: Comparison of seasonal terrestrial water storage variations from GRACE with groundwater-level measurements from the High Plains Aquifer (USA), Geophys. Res. Lett., 34, L14402, https://doi.org/10.1029/2007GL030139, 2007.
Sun, A. Y., Green, R., Rodell, M., and Swenson, S.: Inferring aquifer storage parameters using satellite and in situ measurements: Estimation under uncertainty, Geophys. Res. Lett., 37, L10401, https://doi.org/10.1029/2010GL043231, 2010.
Sutcliffe, J. V. and Petersen, G.: Lake Victoria: derivation of a corrected natural water level series, Hydrolog. Sci. J., 52, 1316–1321, 2007.
Swenson, S. and Wahr, J.: Post-processing removal of correlated errors in GRACE data, Geophys. Res. Lett., 33, L08402, https://doi.org/10.1029/2005GL025285, 2006.
Tapley, B., Flechtner, F., Watkins, M., and Bettadpur, S.: GRACE mission: status and prospects, 2015 GRACE Science Team Meeting, Austin, Texas, 20–22 September, 2015.
Tapley, B. D., Bettadpur, S., Ries, J. C., Thompson, P. F., and Watkins, M. M.: GRACE measurements of mass variability in the Earth system, Science, 305, 503–505, 2004.
Taylor, R. G. and Howard, K. W. F.: A tectonic geomorphic model of the hydrogeology of deeply weathered crystalline rock: evidence from Uganda, Hydrogeol. J., 8, 279–294, 2000.
Taylor, R. G., Tindimugaya, C., Barker, J., MacDonald, D., and Kulabako, R.: Convergent radial tracing of viral and solute transport in gneiss saprolite, Ground Water, 48, 284–294, 2010.
Taylor, R. G., Todd, M. C., Kongola, L., Maurice, L., Nahozya, E., Sanga, H., and MacDonald, A. M.: Evidence of the dependence of groundwater resources on extreme rainfall in East Africa, Nature Climate Change, 3, 374–378, https://doi.org/10.1038/nclimate1731, 2013.
UNEP: Adaptation to Climate-change Induced Water Stress in the Nile Basin: A Vulnerability Assessment Report, Division of Early Warning and Assessment (DEWA), United Nations Environment Programme (UNEP), Nairobi, Kenya, 2013.
Vishwakarma, B. D., Devaraju, B., and Sneeuw, N.: Minimizing the effects of filtering on catchment scale GRACE solutions, Water Resour. Res., 52, 5868–5890, https://doi.org/10.1002/2016WR018960, 2016.
Vouillamoz, J. M., Lawson, F. M. A., Yalo, N., and Descloitres, M.: The use of magnetic resonance sounding for quantifying specific yield and transmissivity in hard rock aquifers: The example of Benin, J. Appl. Geophys., 107, 16–24, 2014.
Wahr, J., Swenson, S., Zlotnicki, V., and Velicogna, I.: Time-variable gravity from GRACE: First results, Geophys. Res. Lett., 31, L11501, https://doi.org/10.1029/2004GL019779, 2004.
Wahr, J., Swenson, S., and Velicogna, I.: Accuracy of GRACE mass estimates, Geophys. Res. Lett., 33, L06401, https://doi.org/10.1029/2005GL025305, 2006.
Wang, L., Davis, J. L., Hill, E. M., and Tamisiea, M. E.: Stochastic filtering for determining gravityvariations for decade-long timeseries of GRACE gravity, J. Geophys. Res.-Sol. Ea., 121, 2915–2931, https://doi.org/10.1002/2015JB012650, 2016.
Watkins, M. M., Wiese, D. N., Yuan, D.-N., Boening, C., and Landerer, F. W.: Improved methods for observing Earth's time variable mass distribution with GRACE using spherical cap mascons, J. Geophys. Res.-Sol. Ea., 120, 2648–2671, https://doi.org/10.1002/2014JB011547, 2015.
Wiese, D. N., Yuan, D.-N., Boening, C., Landerer, F. W., and Watkins, M. M.: JPL GRACE Mascon Ocean, Ice, and Hydrology Equivalent Water Height JPL RL05M.1. Ver. 1, PO.DAAC, CA, USA, 2015.
Wiese, D. N., Landerer, F. W., and Watkins, M. M.: Quantifying and reducing leakage errors in the JPL RL05M GRACE mascon solution, Water Resour. Res., 52, 7490–7502, https://doi.org/10.1002/2016WR019344, 2016.
Xie, H., Longuevergne, L., Ringler, C., and Scanlon, B. R.: Calibration and evaluation of a semi-distributed watershed model of Sub-Saharan Africa using GRACE data, Hydrol. Earth Syst. Sci., 16, 3083–3099, https://doi.org/10.5194/hess-16-3083-2012, 2012.
Yin, X. and Nicholson, S. E.: The water balance of Lake Victoria, Hydrolog. Sci. J., 43, 789–811, 1998.
Short summary
This study tests the phase and amplitude of GRACE TWS signals in the Upper Nile Basin from five commonly used gridded products (NASA's GRCTellus: CSR, JPL, GFZ; JPL-Mascons; GRGS) using in situ data and soil moisture from the Global Land Data Assimilation System. Resolution of changes in groundwater storage (ΔGWS) from GRACE is greatly constrained by the uncertain simulated soil moisture storage and the low amplitude in ΔGWS observed in deeply weathered crystalline rocks in the Upper Nile Basin.
This study tests the phase and amplitude of GRACE TWS signals in the Upper Nile Basin from five...
