Articles | Volume 29, issue 13
https://doi.org/10.5194/hess-29-2749-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-29-2749-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Jul 2025
Research article |
| 02 Jul 2025
| 02 Jul 2025
Drought decreases annual streamflow response to precipitation, especially in arid regions
Institute for Environmental Studies, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
Raed Hamed
Institute for Environmental Studies, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
Manuela I. Brunner
Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland
WSL Institute for Snow and Avalanche Research SLF, Davos Dorf, Switzerland
Climate Change, Extremes and Natural Hazards in Alpine Regions Research Center CERC, Davos Dorf, Switzerland
Marlies H. Barendrecht
Department of Geography, King's College London, London, United Kingdom
Anne F. Van Loon
Institute for Environmental Studies, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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Assessing the rarity and magnitude of very extreme flood events occurring less than twice a century is challenging due to the lack of observations of such rare events. Here we develop a new approach, pooling reforecast ensemble members from the European Flood Awareness System to increase the sample size available to estimate the frequency of extreme flood events. We demonstrate that such ensemble pooling produces more robust estimates than observation-based estimates.
Álvaro Ossandón, Manuela I. Brunner, Balaji Rajagopalan, and William Kleiber
Hydrol. Earth Syst. Sci., 26, 149–166, https://doi.org/10.5194/hess-26-149-2022, https://doi.org/10.5194/hess-26-149-2022, 2022
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Timely projections of seasonal streamflow extremes on a river network can be useful for flood risk mitigation, but this is challenging, particularly under space–time nonstationarity. We develop a space–time Bayesian hierarchical model (BHM) using temporal climate covariates and copulas to project seasonal streamflow extremes and the attendant uncertainties. We demonstrate this on the Upper Colorado River basin to project spring flow extremes using the preceding winter’s climate teleconnections.
Raed Hamed, Anne F. Van Loon, Jeroen Aerts, and Dim Coumou
Earth Syst. Dynam., 12, 1371–1391, https://doi.org/10.5194/esd-12-1371-2021, https://doi.org/10.5194/esd-12-1371-2021, 2021
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Soy yields in the US are affected by climate variability. We identify the main within-season climate drivers and highlight potential compound events and associated agricultural impacts. Our results show that soy yields are most negatively influenced by the combination of high temperature and low soil moisture during the summer crop reproductive period. Furthermore, we highlight the role of temperature and moisture coupling across the year in generating these hot–dry extremes and linked impacts.
Doris E. Wendt, John P. Bloomfield, Anne F. Van Loon, Margaret Garcia, Benedikt Heudorfer, Joshua Larsen, and David M. Hannah
Nat. Hazards Earth Syst. Sci., 21, 3113–3139, https://doi.org/10.5194/nhess-21-3113-2021, https://doi.org/10.5194/nhess-21-3113-2021, 2021
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Managing water demand and supply during droughts is complex, as highly pressured human–water systems can overuse water sources to maintain water supply. We evaluated the impact of drought policies on water resources using a socio-hydrological model. For a range of hydrogeological conditions, we found that integrated drought policies reduce baseflow and groundwater droughts most if extra surface water is imported, reducing the pressure on water resources during droughts.
Marit Van Tiel, Anne F. Van Loon, Jan Seibert, and Kerstin Stahl
Hydrol. Earth Syst. Sci., 25, 3245–3265, https://doi.org/10.5194/hess-25-3245-2021, https://doi.org/10.5194/hess-25-3245-2021, 2021
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Glaciers can buffer streamflow during dry and warm periods, but under which circumstances can melt compensate precipitation deficits? Streamflow responses to warm and dry events were analyzed using
long-term observations of 50 glacierized catchments in Norway, Canada, and the European Alps. Region, timing of the event, relative glacier cover, and antecedent event conditions all affect the level of compensation during these events. This implies that glaciers do not compensate straightforwardly.
Manuela I. Brunner, Eric Gilleland, and Andrew W. Wood
Earth Syst. Dynam., 12, 621–634, https://doi.org/10.5194/esd-12-621-2021, https://doi.org/10.5194/esd-12-621-2021, 2021
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Compound hot and dry events can lead to severe impacts whose severity may depend on their timescale and spatial extent. Here, we show that the spatial extent and timescale of compound hot–dry events are strongly related, spatial compound event extents are largest at
sub-seasonal timescales, and short events are driven more by high temperatures, while longer events are more driven by low precipitation. Future climate impact studies should therefore be performed at different timescales.
Manuela I. Brunner, Lieke A. Melsen, Andrew W. Wood, Oldrich Rakovec, Naoki Mizukami, Wouter J. M. Knoben, and Martyn P. Clark
Hydrol. Earth Syst. Sci., 25, 105–119, https://doi.org/10.5194/hess-25-105-2021, https://doi.org/10.5194/hess-25-105-2021, 2021
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Assessments of current, local, and regional flood hazards and their future changes often involve the use of hydrologic models. A reliable model ideally reproduces both local flood characteristics and regional aspects of flooding. In this paper we investigate how such characteristics are represented by hydrologic models. Our results show that both the modeling of local and regional flood characteristics are challenging, especially under changing climate conditions.
Anne F. Van Loon, Imogen Lester-Moseley, Melanie Rohse, Phil Jones, and Rosie Day
Geosci. Commun., 3, 453–474, https://doi.org/10.5194/gc-3-453-2020, https://doi.org/10.5194/gc-3-453-2020, 2020
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The Global South is vulnerable to natural hazards like floods and droughts, but creativity could support community preparedness. We mapped 267 papers that use a variety of art forms. They aim to raise the public's awareness or instigate adaptation by participants. In our pilot in South Africa, community members developed stories about preparing for future drought. This led to an imagination of future events, conversations about adaptation, intergenerational exchange, and increased awareness.
Doris E. Wendt, Anne F. Van Loon, John P. Bloomfield, and David M. Hannah
Hydrol. Earth Syst. Sci., 24, 4853–4868, https://doi.org/10.5194/hess-24-4853-2020, https://doi.org/10.5194/hess-24-4853-2020, 2020
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Groundwater use changes the availability of groundwater, especially during droughts. This study investigates the impact of groundwater use on groundwater droughts. A methodological framework is presented that was developed and applied to the UK. We identified an asymmetric impact of groundwater use on droughts, which highlights the relation between short-term and long-term strategies for sustainable groundwater use.
Bentje Brauns, Daniela Cuba, John P. Bloomfield, David M. Hannah, Christopher Jackson, Ben P. Marchant, Benedikt Heudorfer, Anne F. Van Loon, Hélène Bessière, Bo Thunholm, and Gerhard Schubert
Proc. IAHS, 383, 297–305, https://doi.org/10.5194/piahs-383-297-2020, https://doi.org/10.5194/piahs-383-297-2020, 2020
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In Europe, ca. 65% of drinking water is groundwater. Its replenishment depends on rainfall, but droughts may cause groundwater levels to fall below normal. These
groundwater droughtscan limit supply, making it crucial to understand their regional connection. The Groundwater Drought Initiative (GDI) assesses spatial patterns in historic—recent groundwater droughts across Europe for the first time. Using an example dataset, we describe the background to the GDI and its methodological approach.
Cited articles
Adams, H. D., Luce, C. H., Breshears, D. D., Allen, C. D., Weiler, M., Hale, V. C., Smith, A. M. S., and Huxman, T. E.: Ecohydrological consequences of drought- and infestation-triggered tree die-off: Insights and hypotheses, Ecohydrology, 5, 145–159, https://doi.org/10.1002/eco.233, 2012.
Alaoui, A., Rogger, M., Peth, S., and Blöschl, G.: Does soil compaction increase floods? A review, J. Hydrol., 557, 631–642, https://doi.org/10.1016/j.jhydrol.2017.12.052, 2018.
Alvarez-Garreton, C., Boisier, J. P., Garreaud, R., Seibert, J., and Vis, M.: Progressive water deficits during multiyear droughts in basins with long hydrological memory in Chile, Hydrol. Earth Syst. Sci., 25, 429–446, https://doi.org/10.5194/hess-25-429-2021, 2021.
Anderegg, W. R. L., Konings, A. G., Trugman, A. T., Yu, K., Bowling, D. R., Gabbitas, R., Karp, D. S., Pacala, S., Sperry, J. S., Sulman, B. N., and Zenes, N.: Hydraulic diversity of forests regulates ecosystem resilience during drought, Nature, 561, 538–541, https://doi.org/10.1038/s41586-018-0539-7, 2018.
Anderson, B. J., Brunner, M. I., Slater, L. J., and Dadson, S. J.: Elasticity curves describe streamflow sensitivity to precipitation across the entire flow distribution, Hydrol. Earth Syst. Sci., 28, 1567–1583, https://doi.org/10.5194/hess-28-1567-2024, 2024.
Anderson, R. L.: The Problem of Autocorrelation in Regression Analysis, J. Am. Stat. Assoc., 49, 113–129, https://doi.org/10.1080/01621459.1954.10501219, 1954.
Avanzi, F., Rungee, J., Maurer, T., Bales, R., Ma, Q., Glaser, S., and Conklin, M.: Climate elasticity of evapotranspiration shifts the water balance of Mediterranean climates during multi-year droughts, Hydrol. Earth Syst. Sci., 24, 4317–4337, https://doi.org/10.5194/hess-24-4317-2020, 2020.
Bales, R. C., Goulden, M. L., Hunsaker, C. T., Conklin, M. H., Hartsough, P. C., O'Geen, A. T., Hopmans, J. W., and Safeeq, M.: Mechanisms controlling the impact of multi-year drought on mountain hydrology, Sci. Rep.-UK, 8, 1–8, https://doi.org/10.1038/s41598-017-19007-0, 2018.
Barendrecht, M. H., Matanó, A., Mendoza, H., Weesie, R., Rohse, M., Koehler, J., de Ruiter, M., Garcia, M., Mazzoleni, M., Aerts, J. C. J. H., Ward, P. J., Di Baldassarre, G., Day, R., and Van Loon, A. F.: Exploring drought-to-flood interactions and dynamics: A global case review, WIREs Water, 11, e1726, https://doi.org/10.1002/wat2.1726, 2024.
Beck, H. E., Vergopolan, N., Pan, M., Levizzani, V., van Dijk, A. I. J. M., Weedon, G. P., Brocca, L., Pappenberger, F., Huffman, G. J., and Wood, E. F.: Global-scale evaluation of 22 precipitation datasets using gauge observations and hydrological modeling, Hydrol. Earth Syst. Sci., 21, 6201–6217, https://doi.org/10.5194/hess-21-6201-2017, 2017.
Beck, H. E., Wood, E. F., Pan, M., Fisher, C. K., Miralles, D. G., Van Dijk, A. I. J. M., McVicar, T. R., and Adler, R. F.: MSWep v2 Global 3-hourly 0.1° precipitation: Methodology and quantitative assessment, B. Am. Meteorol. Soc., 100, 473–500, https://doi.org/10.1175/BAMS-D-17-0138.1, 2019 (data available at: https://www.gloh2o.org/mswep/, last access: 1 March 2024).
Berdugo, M., Gaitan, J. J., Delgado-Baquerizo, M., Crowther, T. W., and Dakos, V.: Prevalence and drivers of abrupt vegetation shifts in global drylands, P. Natl. Acad. Sci. USA, 119, 1–10, https://doi.org/10.1073/pnas.2123393119, 2022.
Berghuijs, W. R. and Slater, L. J.: Groundwater shapes North American river floods, Environ. Res. Lett., 18, 1–10, https://doi.org/10.1088/1748-9326/acbecc, 2023.
Berghuijs, W. R., Woods, R. A., and Hrachowitz, M.: A precipitation shift from snow towards rain leads to a decrease in streamflow, Nat. Clim. Change, 4, 583–586, https://doi.org/10.1038/nclimate2246, 2014.
Boergens, E., Dobslaw, H., and Dill, R.: GFZ GravIS RL06 Continental Water Storage Anomalies. V.0004, GFZ Data Services, 2019.
Breshears, D. D., Cobb, N. S., Rich, P. M., Price, K. P., Allen, C. D., Balice, R. G., Romme, W. H., Kastens, J. H., Floyd, M. L., Belnap, J., Anderson, J. J., Myers, O. B., and Meyer, C. W.: Regional vegetation die-off in response to global-change-type drought, P. Natl. Acad. Sci. USA, 102, 15144–15148, https://doi.org/10.1073/pnas.0505734102, 2005.
Carroll, R. W. H., Niswonger, R. G., Ulrich, C., Varadharajan, C., Siirila-Woodburn, E. R., and Williams, K. H.: Declining groundwater storage expected to amplify mountain streamflow reductions in a warmer world, Nature Water, 2, 419–433, https://doi.org/10.1038/s44221-024-00239-0, 2024.
Descroix, L., Mahé, G., Lebel, T., Favreau, G., Galle, S., Gautier, E., Olivry, J. C., Albergel, J., Amogu, O., Cappelaere, B., Dessouassi, R., Diedhiou, A., Le Breton, E., Mamadou, I., and Sighomnou, D.: Spatio-temporal variability of hydrological regimes around the boundaries between Sahelian and Sudanian areas of West Africa: A synthesis, J. Hydrol., 375, 90–102, https://doi.org/10.1016/j.jhydrol.2008.12.012, 2009.
Di Baldassarre, G., Martinez, F., Kalantari, Z., and Viglione, A.: Drought and flood in the Anthropocene: feedback mechanisms in reservoir operation, Earth Syst. Dynam., 8, 225–233, https://doi.org/10.5194/esd-8-225-2017, 2017.
Do, H. X., Gudmundsson, L., Leonard, M., and Westra, S.: The Global Streamflow Indices and Metadata Archive (GSIM) – Part 1: The production of a daily streamflow archive and metadata, Earth Syst. Sci. Data, 10, 765–785, https://doi.org/10.5194/essd-10-765-2018, 2018a.
Do, H. X., Gudmundsson, L., Leonard, M., and Westra, S.: The Global Streamflow Indices and Metadata Archive – Part 1: Station catalog and Catchment boundary, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.887477, 2018b.
Donchyts, G., Baart, F., Winsemius, H., Gorelick, N., Kwadijk, J., and Van De Giesen, N.: Earth's surface water change over the past 30 years, Nat. Clim. Change, 6, 810–813, https://doi.org/10.1038/nclimate3111, 2016.
Earth Resources Observation and Science (EROS) Center: Landsat Collection 2 Level-3 Dynamic Surface Water Extent science product, U.S. Geological Survey, https://doi.org/10.3133/fs20223084, 2022.
European Space Agency (ESA): The Climate Change Initiative Land Cover (CCI-LC) dataset: http://maps.elie.ucl.ac.be/CCI/viewer/download.php, last access: 14 August 2015.
Fountain, A. G. and Tangborn, W. V.: The Effect of Glaciers on Streamflow Variations, Water Resour. Res., 21, 579–586, https://doi.org/10.1029/WR021i004p00579, 1985.
Garreaud, R. D., Alvarez-Garreton, C., Barichivich, J., Boisier, J. P., Christie, D., Galleguillos, M., LeQuesne, C., McPhee, J., and Zambrano-Bigiarini, M.: The 2010–2015 megadrought in central Chile: impacts on regional hydroclimate and vegetation, Hydrol. Earth Syst. Sci., 21, 6307–6327, https://doi.org/10.5194/hess-21-6307-2017, 2017.
Gelman, A. and Hill, J.: Data Analysis Using Regression and Multilevel/Hierarchical Models, Cambridge University Press, Cambridge, https://doi.org/10.1017/CBO9780511790942, 2007.
Goodwell, A. E., Kumar, P., Fellows, A. W., and Flerchinger, G. N.: Dynamic process connectivity explains ecohydrologic responses to rainfall pulses and drought, P. Natl. Acad. Sci. USA, 115, E8604–E8613, https://doi.org/10.1073/pnas.1800236115, 2018.
Guardiola-Claramonte, M., Troch, P. A., Breshears, D. D., Huxman, T. E., Switanek, M. B., Durcik, M., and Cobb, N. S.: Decreased streamflow in semi-arid basins following drought-induced tree die-off: A counter-intuitive and indirect climate impact on hydrology, J. Hydrol., 406, 225–233, https://doi.org/10.1016/j.jhydrol.2011.06.017, 2011.
Gudmundsson, L., Do, H. X., Leonard, M., and Westra, S.: The Global Streamflow Indices and Metadata Archive (GSIM) – Part 2: Quality control, time-series indices and homogeneity assessment, Earth Syst. Sci. Data, 10, 787–804, https://doi.org/10.5194/essd-10-787-2018, 2018.
Jaeger, K. L., Olden, J. D., and Pelland, N. A.: Climate change poised to threaten hydrologic connectivity and endemic fishes in dryland streams, P. Natl. Acad. Sci. USA, 111, 13894–13899, https://doi.org/10.1073/pnas.1320890111, 2014.
Johnson, G. L., Sinclair, T. R., and Kenworthy, K.: Transpiration and normalized difference vegetation index response of seashore paspalum to soil drying, HortScience, 44, 2046–2048, https://doi.org/10.21273/hortsci.44.7.2046, 2009.
Klockow, P. A., Vogel, J. G., Edgar, C. B., and Moore, G. W.: Lagged mortality among tree species four years after an exceptional drought in east Texas, Ecosphere, 9, 1–14, https://doi.org/10.1002/ecs2.2455, 2018.
Lamontagne-Hallé, P., McKenzie, J. M., Kurylyk, B. L., and Zipper, S. C.: Changing groundwater discharge dynamics in permafrost regions, Environ. Res. Lett., 13, 1–13, https://doi.org/10.1088/1748-9326/aad404, 2018.
Levy, M. C., Lopes, A. V., Cohn, A., Larsen, L. G., and Thompson, S. E.: Land Use Change Increases Streamflow Across the Arc of Deforestation in Brazil, Geophys. Res. Lett., 45, 3520–3530, https://doi.org/10.1002/2017GL076526, 2018.
Liu, C., Chen, Y., Huang, W., Fang, G., Li, Z., Zhu, C., and Liu, Y.: Climate warming positively affects hydrological connectivity of typical inland river in arid Central Asia, NPJ Clim. Atmos. Sci., 7, 1–12, https://doi.org/10.1038/s41612-024-00800-4, 2024.
Liu, Q., Yang, Y., Liang, L., Yan, D., Wang, X., Li, C., and Sun, T.: Shift in precipitation-streamflow relationship induced by multi-year drought across global catchments, Sci. Total Environ., 857, 1–10, https://doi.org/10.1016/j.scitotenv.2022.159560, 2022.
Liu, Q., Liang, L., Sun, T., Wang, X., Li, C., and Yan, S.: Assessment of the shift in the precipitation–streamflow relationship influenced by multiyear drought, Yellow River basin, China, Sci. Total Environ., 903, 1–11, https://doi.org/10.1016/j.scitotenv.2023.166203, 2023.
Liu, X., Gao, F., Wu, Y., and Zhao, Z.: Detecting outliers and influential points: an indirect classical Mahalanobis distance-based method, J. Stat. Comput. Sim., 88, 2013–2033, https://doi.org/10.1080/00949655.2018.1448981, 2018.
Liu, Y., Liu, P., Zhang, L., Zhang, X., Zhang, Y., and Cheng, L.: Detecting and attributing drought-induced changes in catchment hydrological behaviours in a southeastern Australia catchment using a data assimilation method, Hydrol. Process., 35, 1–9, https://doi.org/10.1002/hyp.14289, 2021.
Lutz, A. F., Immerzeel, W. W., Shrestha, A. B., and Bierkens, M. F. P.: Consistent increase in High Asia's runoff due to increasing glacier melt and precipitation, Nat. Clim. Change, 4, 587–592, https://doi.org/10.1038/nclimate2237, 2014.
Martens, B., Miralles, D. G., Lievens, H., van der Schalie, R., de Jeu, R. A. M., Fernández-Prieto, D., Beck, H. E., Dorigo, W. A., and Verhoest, N. E. C.: GLEAM v3: satellite-based land evaporation and root-zone soil moisture, Geosci. Model Dev., 10, 1903–1925, https://doi.org/10.5194/gmd-10-1903-2017, 2017.
Massari, C., Avanzi, F., Bruno, G., Gabellani, S., Penna, D., and Camici, S.: Evaporation enhancement drives the European water-budget deficit during multi-year droughts, Hydrol. Earth Syst. Sci., 26, 1527–1543, https://doi.org/10.5194/hess-26-1527-2022, 2022.
Matanó, A.: Drought influence on the annual response of streamflow to precipitation, Figshare [data set] and [code], https://doi.org/10.6084/m9.figshare.26870701.v1, 2024.
Matanó, A., Berghuijs, W. R., Mazzoleni, M., de Ruiter, M. C., Ward, P. J., and Van Loon, A. F.: Compound and consecutive drought-flood events at a global scale, Environ. Res. Lett., 19, 1–12, https://doi.org/10.1088/1748-9326/ad4b46, 2024a.
Matanó, A., Berghuijs, W., Mazzoleni, M., de Ruiter, M. C., Ward, P. J., and Van Loon, A. F.: Drought – Flood events, Figshare [data set], https://figshare.com/s/a06830fc5111bd7804ce (last access: 1 March 2024), 2024b.
Maurer, T., Avanzi, F., Glaser, S. D., and Bales, R. C.: Drivers of drought-induced shifts in the water balance through a Budyko approach, Hydrol. Earth Syst. Sci., 26, 589–607, https://doi.org/10.5194/hess-26-589-2022, 2022.
Moody, C. E.: Fixed-Effects Panel Data Models: To Cluster or Not to Cluster, SSRN Electronic Journal, 1–24, https://doi.org/10.2139/ssrn.2840273, 2017.
NOAA: STAR – Global Vegetation Health Products : Downloading Vegetation Health Products Data, https://www.star.nesdis.noaa.gov/smcd/emb/vci/VH/vh_ftp.php, last access: 12 August 2022.
Pan, Z., Liu, P., Xu, C.-Y., Cheng, L., Tian, J., Cheng, S., and Xie, K.: The influence of a prolonged meteorological drought on catchment water storage capacity: a hydrological-model perspective, Hydrol. Earth Syst. Sci., 24, 4369–4387, https://doi.org/10.5194/hess-24-4369-2020, 2020.
Paparoditis, E. and Politis, D. N.: The asymptotic size and power of the augmented Dickey–Fuller test for a unit root, Economet. Rev., 37, 955–973, https://doi.org/10.1080/00927872.2016.1178887, 2018.
Parry, S., Prudhomme, C., Wilby, R. L., and Wood, P. J.: Drought termination: Concept and characterisation, Prog. Phys. Geogr., 40, 743–767, https://doi.org/10.1177/0309133316652801, 2016.
Peterson, T. J., Saft, M., Peel, M. C., and John, A.: Watersheds may not recover from drought, Science, 372, 745–749, https://doi.org/10.1126/science.abd5085, 2021.
Rodrigues, R. R. and McPhaden, M. J.: Why did the 2011–2012 la Niña cause a severe drought in the Brazilian Northeast?, Geophys. Res. Lett., 41, 1012–1018, https://doi.org/10.1002/2013GL058703, 2014.
Rubel, F. and Kottek, M.: Observed and projected climate shifts 1901–2100 depicted by world maps of the Köppen-Geiger climate classification, Meteorol. Z., 19, 135–141, https://doi.org/10.1127/0941-2948/2010/0430, 2010.
Saft, M., Western, A. W., Zhang, L., Peel, M. C., and Potter, N. J.: The influence of multiyear drought on the annual rainfall-runoff relationship: An Australian perspective, Water Resour. Res., 51, 2444–2463, https://doi.org/10.1002/2014WR015348, 2015.
Saft, M., Peel, M. C., Western, A. W., Perraud, J. M., and Zhang, L.: Bias in streamflow projections due to climate-induced shifts in catchment response, Geophys. Res. Lett., 43, 1574–1581, https://doi.org/10.1002/2015GL067326, 2016a.
Saft, M., Peel, M. C., Western, A. W., and Zhang, L.: Predicting shifts in rainfall-runoff partitioning during multiyear drought: Roles of dry period and catchment characteristics, Water Resour. Res., 52, 9290–9305, https://doi.org/10.1002/2016WR019525, 2016b.
Sakia, R. M.: The Box-Cox Transformation Technique: A Review, Statistician, 41, 169–178, https://doi.org/10.2307/2348250, 1992.
Sankarasubramanian, A., Vogel, R. M., and Limbrunner, J. F.: Climate elasticity of streamflow in the United States, Water Resour. Res., 37, 1771–1781, https://doi.org/10.1029/2000WR900330, 2001.
Santos, L., Thirel, G., and Perrin, C.: Technical note: Pitfalls in using log-transformed flows within the KGE criterion, Hydrol. Earth Syst. Sci., 22, 4583–4591, https://doi.org/10.5194/hess-22-4583-2018, 2018.
Schaake, J. C.: From Climate to Flow, in: Climate Change and U. S. Water Resources, edited by: Waggoner, P. E., John Wiley, 177–206, 1990.
Schaner, N., Voisin, N., Nijssen, B., and Lettenmaier, D. P.: The contribution of glacier melt to streamflow, Environ. Res. Lett., 7, 1–9, https://doi.org/10.1088/1748-9326/7/3/034029, 2012.
van Huijgevoort, M. H. J., Hazenberg, P., van Lanen, H. A. J., and Uijlenhoet, R.: A generic method for hydrological drought identification across different climate regions, Hydrol. Earth Syst. Sci., 16, 2437–2451, https://doi.org/10.5194/hess-16-2437-2012, 2012.
Van Loon, A. F.: Hydrological drought explained, WIREs Water, 2, 359–392, https://doi.org/10.1002/wat2.1085, 2015.
Van Loon, A. F. and Laaha, G.: Hydrological drought severity explained by climate and catchment characteristics, J. Hydrol., 526, 3–14, https://doi.org/10.1016/j.jhydrol.2014.10.059, 2015.
Van Loon, A. F., Kchouk, S., Matanó, A., Tootoonchi, F., Alvarez-Garreton, C., Hassaballah, K. E. A., Wu, M., Wens, M. L. K., Shyrokaya, A., Ridolfi, E., Biella, R., Nagavciuc, V., Barendrecht, M. H., Bastos, A., Cavalcante, L., de Vries, F. T., Garcia, M., Mård, J., Streefkerk, I. N., Teutschbein, C., Tootoonchi, R., Weesie, R., Aich, V., Boisier, J. P., Di Baldassarre, G., Du, Y., Galleguillos, M., Garreaud, R., Ionita, M., Khatami, S., Koehler, J. K. L., Luce, C. H., Maskey, S., Mendoza, H. D., Mwangi, M. N., Pechlivanidis, I. G., Ribeiro Neto, G. G., Roy, T., Stefanski, R., Trambauer, P., Koebele, E. A., Vico, G., and Werner, M.: Review article: Drought as a continuum – memory effects in interlinked hydrological, ecological, and social systems, Nat. Hazards Earth Syst. Sci., 24, 3173–3205, https://doi.org/10.5194/nhess-24-3173-2024, 2024.
van Tiel, M., Aubry-Wake, C., Somers, L., Andermann, C., Avanzi, F., Baraer, M., Chiogna, G., Daigre, C., Das, S., Drenkhan, F., Farinotti, D., Fyffe, C. L., de Graaf, I., Hanus, S., Immerzeel, W., Koch, F., McKenzie, J. M., Müller, T., Popp, A. L., Saidaliyeva, Z., Schaefli, B., Schilling, O. S., Teagai, K., Thornton, J. M., and Yapiyev, V.: Cryosphere–groundwater connectivity is a missing link in the mountain water cycle, Nature Water, 2, 624–637, https://doi.org/10.1038/s44221-024-00277-8, 2024.
Wagenmakers, E. J. and Farrell, S.: AIC model selection using Akaike weights, Psychon. B. Rev., 11, 192–196, https://doi.org/10.3758/BF03206482, 2004.
Wasko, C., Nathan, R., and Peel, M. C.: Trends in Global Flood and Streamflow Timing Based on Local Water Year, Water Resour. Res., 56, 1–12, https://doi.org/10.1029/2020WR027233, 2020.
Wu, J., Chen, X., Yuan, X., Yao, H., Zhao, Y., and AghaKouchak, A.: The interactions between hydrological drought evolution and precipitation-streamflow relationship, J. Hydrol., 597, 1–11, https://doi.org/10.1016/j.jhydrol.2021.126210, 2021.
Xue, B., Wang, G., Xiao, J., Helman, D., Sun, W., Wang, J., and Liu, T.: Global convergence but regional disparity in the hydrological resilience of ecosystems and watersheds to drought, J. Hydrol., 591, 1–11, https://doi.org/10.1016/j.jhydrol.2020.125589, 2020.
Zhang, X., Li, M., Ma, Z., Yang, Q., Lv, M., and Clark, R.: Assessment of an Evapotranspiration Deficit Drought Index in Relation to Impacts on Ecosystems, Adv. Atmos. Sci., 36, 1273–1287, https://doi.org/10.1007/s00376-019-9061-6, 2019.
Zhang, Y., Viglione, A., and Blöschl, G.: Temporal Scaling of Streamflow Elasticity to Precipitation: A Global Analysis, Water Resour. Res., 58, 1–16, https://doi.org/10.1029/2021WR030601, 2022.
Short summary
Persistent droughts change how rivers respond to rainfall. Our study of over 5000 catchments worldwide found that hydrological and soil moisture droughts decrease river-flow response to rain, especially in arid regions, while vegetation decline slightly increases it. Snow-covered areas are more resilient due to stored water buffering changes. Droughts can also cause long-lasting changes, with short and intense droughts reducing river response to rainfall and prolonged droughts increasing it.
Persistent droughts change how rivers respond to rainfall. Our study of over 5000 catchments...
