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Yr Athro Michael Singer
- Sylwebydd y cyfryngau
- Ar gael fel goruchwyliwr ôl-raddedig
Timau a rolau for Michael Singer
Athro Dirprwy Gyfarwyddwr y Sefydliad Ymchwil Dŵr
Trosolwg
- Ecohydrology
- Sediment transport
- Stochastic hydrology
- Climate change
- Floods
Cyhoeddiad
2026
- Quichimbo Miguitama, E. A. et al. 2026. The impact of model resolution on the water balance of a dryland basin. Hydrological Processes 40 (10) e70733. (10.1002/hyp.70733)
- Singer, M. B. et al. 2026. Examining dynamic ecohydrology in dryland riparian forests. In: Wilcox, B. et al., Routledge Handbook of Terrestrial Ecohydrology. London: Routledge. , pp.319-330. (10.4324/9781003383918-29)
2025
- Blake, G. et al., 2025. The impact of convection-permitting model rainfall on the dryland water balance. Hydrology and Earth System Sciences 29 , pp.7098-7125. (10.5194/hess-29-7093-2025)
- Kui, L. et al., 2025. Increased groundwater dependence of riparian vegetation in response to drought. Ecohydrology 18 (5) e70060. (10.1002/eco.70060)
- Rigby, J. M. et al., 2025. Mobile phones in the drylands: How technology supports community information sharing in rural Kenya. Presented at: COMPASS '25 Toronto, Canada 22 - 25 July 2025. Proceedings of the 2025 ACM SIGCAS/SIGCHI Conference on Computing and Sustainable Societies. New York, USA: Association for Computing Machinery. , pp.167-183. (10.1145/3715335.3735464)
- Gebrechorkos, S. H. et al., 2025. Warming accelerates global drought severity [RETRACTED]. Nature 642 , pp.628-635. (10.1038/s41586-025-09047-2)
- Daron, J. et al., 2025. SIMBOL: A method to co-produce impact-based seasonal outlooks. Climate Services 38 100579. (10.1016/j.cliser.2025.100579)
- Grieve, S. W. D. et al., 2025. GDBM: A database of global drainage basin morphology. PLoS ONE 20 (4) e0320771. (10.1371/journal.pone.0320771)
- Lochin, P. et al., 2025. Drivers of spatiotemporal patterns of riparian forest NDVI along a hydroclimatic gradient. Ecohydrology 18 (2) e2729. (10.1002/eco.2729)
- Odongo, R. A. et al., 2025. Drought impacts and community adaptation: perspectives on the 2020-2023 drought in East Africa. International Journal of Disaster Risk Reduction 119 105309. (10.1016/j.ijdrr.2025.105309)
2024
- Singer, M. B. et al. 2024. Climatic controls on the length and shape of the world's drainage basins. Geophysical Research Letters 51 (24) e2024GL111220. (10.1029/2024GL111220)
- Cocking, K. et al. 2024. Locally defined seasonal rainfall characteristics within the Horn of Africa drylands from rain gauge observations. Journal of Hydrometeorology 25 (12), pp.1845-1861. (10.1175/jhm-d-23-0228.1)
- Lochin, P. et al., 2024. The Ant and the Grasshopper: contrasting responses and behaviors to water stress of riparian trees along a hydroclimatic gradient. Science of the Total Environment 952 175916. (10.1016/j.scitotenv.2024.175916)
- Salwey, S. et al., 2024. Developing water supply reservoir operating rules for large-scale hydrological modelling. Hydrology and Earth System Sciences 28 , pp.4203-4218. (10.5194/hess-28-4203-2024)
- Koppa, A. et al., 2024. Dryland self-expansion enabled by land–atmosphere feedbacks. Science 385 (6712), pp.967-972. (10.1126/science.adn6833)
- Rohde, M. M. et al., 2024. Groundwater-dependent ecosystem map exposes global dryland protection needs. Nature 632 , pp.101-107. (10.1038/s41586-024-07702-8)
- Rios Gaona, M. , Michaelides, K. and Singer, M. 2024. STORM v.2: A simple, stochastic rainfall model for exploring the impacts of climate and climate change at and near the land surface in gauged watersheds. Geoscientific Model Development 17 (13), pp.5387-5412. (10.5194/gmd-17-5387-2024)
- McMahon, C. A. et al., 2024. A river runs through it: Robust automated mapping of riparian woodlands and land surface phenology across dryland regions. Remote Sensing of Environment 305 114056. (10.1016/j.rse.2024.114056)
- Rohde, M. M. et al., 2024. Establishing ecological thresholds and targets for groundwater management. nature water 2 , pp.312-323. (10.1038/s44221-024-00221-w)
- Williams, J. et al., 2024. Seasonal and species‐level water‐use strategies and groundwater dependence in dryland riparian woodlands during extreme drought. Water Resources Research 60 (4) e2023WR035928. (10.1029/2023wr035928)
- MacLeod, D. et al. 2024. Sensitivity of rainfall extremes to unprecedented Indian Ocean Dipole events. Geophysical Research Letters 51 (5) e2023GL105258. (10.1029/2023gl105258)
2023
- Quichimbo Miguitama, E. A. et al. 2023. Assessing the sensitivity of modelled water partitioning to global precipitation datasets in a data‐scarce dryland region. Hydrological Processes 37 (12) e15047. (10.1002/hyp.15047)
- Gebrechorkos, S. H. et al., 2023. Global high-resolution drought indices for 1981-2022. Earth System Science Data 15 (12), pp.5449–5466. (10.5194/essd-15-5449-2023)
- Koppa, A. et al., 2023. A lagrangian analysis of the sources of rainfall over the Horn of Africa drylands. Journal of Geophysical Research: Atmospheres 128 (12) e2022JD038408. (10.1029/2022jd038408)
- Warter, M. M. et al. 2023. Modeling seasonal vegetation phenology from hydroclimatic drivers for contrasting plant functional groups within drylands of the Southwestern USA. Environmental Research: Ecology 2 (2) 025001. (10.1088/2752-664X/acb9a0)
- Kibler, C. L. et al., 2023. Evapotranspiration regulates leaf temperature and respiration in dryland vegetation. Agricultural and Forest Meteorology 339 109560. (10.1016/j.agrformet.2023.109560)
- Salwey, S. et al., 2023. National-scale detection of reservoir impacts through hydrological signatures. Water Resources Research 59 (5) e2022WR033893. (10.1029/2022WR033893)
- Macleod, D. et al. 2023. Translating seasonal climate forecasts into water balance forecasts for decision making. PLOS Climate 2 (3) e0000138. (10.1371/journal.pclm.0000138)
- Rigby, J. M. et al., 2023. Climate services for the Greater Horn of Africa: interviews exploring practitioner perspectives from Kenya and beyond. Climate and Development 15 (3), pp.188-200. (10.1080/17565529.2022.2074350)
- Asfaw, D. T. et al., 2023. stoPET v1.0: a stochastic potential evapotranspiration generator for simulation of climate change impacts. Geoscientific Model Development 16 (2), pp.557-571. (10.5194/gmd-16-557-2023)
2022
- Michaelides, K. et al., 2022. Reply to: Climate versus tectonics as controls on river profiles. Nature 612 (7941), pp.E15-E17. (10.1038/s41586-022-05419-0)
- Adloff, M. et al., 2022. Sustained water storage in Horn of Africa drylands dominated by seasonal rainfall extremes. Geophysical Research Letters 49 (21) e2022GL099299. (10.1029/2022GL099299)
- Sabathier, R. et al. 2022. High resolution spatiotemporal patterns of flow at the landscape scale in montane non‐perennial streams. River Research and Applications (10.1002/rra.4076)
- Chen, S. et al., 2022. Exploring exogenous controls on short- versus long-term erosion rates globally. Earth Surface Dynamics 10 (6), pp.1055-1078. (10.5194/esurf-10-1055-2022)
- Williams, J. et al., 2022. Local groundwater decline exacerbates response of dryland riparian woodlands to climatic drought. Global Change Biology (10.1111/gcb.16376)
- Koppa, A. et al., 2022. Unraveling the origin of rainfall over Horn of Africa Drylands. Presented at: EGU General Assembly 2022 23-27 May 2022. EGU General Assembly 2022 Abstracts. Copernicus(10.5194/egusphere-egu22-5330)
2021
- Quichimbo, E. A. et al. 2021. DRYP 1.0: A parsimonious hydrological model of DRYland Partitioning of the water balance. Geoscientific Model Development 14 , pp.6893-6917. (10.5194/gmd-14-6893-2021)
- Singer, M. B. et al. 2021. Hourly potential evapotranspiration at 0.1˚ resolution for the global land surface from 1981-present. Scientific Data 8 224. (10.1038/s41597-021-01003-9)
- Sargeant, C. I. and Singer, M. B. 2021. Local and non-local controls on seasonal variations in water availability and use by riparian trees along a hydroclimatic gradient. Environmental Research Letters 16 (8) 084018. (10.1088/1748-9326/ac1294)
- Kibler, C. L. et al., 2021. A brown wave of riparian woodland mortality following groundwater declines during the 2012-2019 California drought. Environmental Research Letters 16 084030. (10.1088/1748-9326/ac1377)
- Sabathier, R. et al. 2021. Vegetation responses to climatic and geologic controls on water availability in southeastern Arizona. Environmental Research Letters 16 (6) 064029. (10.1088/1748-9326/abfe8c)
- Warter, M. M. et al. 2021. Drought onset and propagation into soil moisture and grassland vegetation responses during the 2012–2019 major drought in Southern California. Hydrology and Earth System Sciences 25 (6), pp.3713–3729. (10.5194/hess-25-3713-2021)
- Rohde, M. M. et al., 2021. Groundwater dependence of riparian woodlands and the disrupting effect of anthropogenically altered streamflow. Proceedings of the National Academy of Sciences 118 (25) e2026453118. (10.1073/pnas.2026453118)
- Mehrnegar, N. et al. 2021. Exploring groundwater and soil water storage changes across the CONUS at 12.5 km resolution by a Bayesian integration of GRACE data into W3RA. Science of the Total Environment 758 143579. (10.1016/j.scitotenv.2020.143579)
2020
- Mayes, M. et al., 2020. Climate sensitivity of water use by riparian woodlands at landscape scales. Hydrological Processes 34 (25), pp.4884-4903. (10.1002/hyp.13942)
- Quichimbo Miguitama, E. A. , Singer, M. B. and Cuthbert, M. O. 2020. Characterizing groundwater-surface water interactions in idealized ephemeral stream systems. Hydrological Processes 34 (18), pp.3792-3806. (10.1002/hyp.13847)
- Mehrnegar, N. et al. 2020. Comparing global hydrological models and combining them with GRACE by dynamic model data averaging (DMDA). Advances in Water Resources 138 103528. (10.1016/j.advwatres.2020.103528)
2019
- Sargeant, C. I. , Singer, M. B. and Vallet-Coulomb, C. 2019. Identification of source-water oxygen isotopes in trees Toolkit (ISO-Tool) for deciphering historical water use by forest trees. Water Resources Research 55 (12), pp.10954-10975. (10.1029/2018WR024519)
- Chen, S. et al., 2019. Aridity is expressed in river topography globally. Nature 573 , pp.573-577. (10.1038/s41586-019-1558-8)
- Washburn, S. J. et al., 2019. Isotopic evidence for mercury photoreduction and retention on particles in surface waters of Central California, USA. Science of the Total Environment 674 , pp.451-461. (10.1016/j.scitotenv.2019.04.145)
2018
- Nakamura, T. K. , Singer, M. B. and Gabet, E. J. 2018. Remains of the 19th century: deep storage of contaminated hydraulic mining sediment along the Lower Yuba River, California. Elementa: Science of the Anthropocene 6 (1) 70. (10.1525/elementa.333)
- Singer, M. , Michaelides, K. and Hobley, D. 2018. STORM 1.0: a simple, flexible, and parsimonious stochastic rainfall generator for simulating climate and climate change. Geoscientific Model Development 11 , pp.3713-3726. (10.5194/gmd-11-3713-2018)
- Phillips, C. B. et al., 2018. Effect of flood hydrograph duration, magnitude, and shape on bed load transport dynamics. Geophysical Research Letters 45 (16), pp.8264-8271. (10.1029/2018GL078976)
- Evans, C. M. , Dritschel, D. G. and Singer, M. B. 2018. Modeling subsurface hydrology in floodplains. Water Resources Research 54 (3), pp.1428-1459. (10.1002/2017WR020827)
- Michaelides, K. et al., 2018. Spatial and temporal analysis of hillslope-channel coupling and implications for the longitudinal profile in a dryland basin. Earth Surface Processes and Landforms (10.1002/esp.4340)
2017
- Singer, M. B. and Michaelides, K. 2017. Deciphering the expression of climate change within the Lower Colorado River basin by stochastic simulation of convective rainfall. Environmental Research Letters 12 (10) 104011. (10.1088/1748-9326/aa8e50)
- Jaeger, K. L. et al., 2017. Geomorphology and sediment regimes of intermittent rivers and ephemeral streams. In: Datry, T. , Bonada, N. and Boulton, A. eds. Intermittent Rivers and Ephemeral Streams. Ecology and Management Academic Press. , pp.21. (10.1016/B978-0-12-803835-2.00002-4)
2016
- Donovan, P. M. et al., 2016. Methylmercury degradation and exposure pathways in streams and wetlands impacted by historical mining. Science of the Total Environment 568 , pp.1192-1203. (10.1016/j.scitotenv.2016.04.139)
- Sargeant, C. and Singer, M. B. 2016. Sub-annual variability in historical water source use by Mediterranean riparian trees. Ecohydrology 9 (7), pp.1328-1345. (10.1002/eco.1730)
- Singer, M. et al. 2016. Hydrologic indicators of hot spots and hot moments of mercury methylation potential along river corridors. Science of the Total Environment 568 , pp.697-711.
- Donovan, P. M. et al., 2016. Isotopic composition of inorganic mercury and methylmercury downstream of a historical gold mining region. Environmental Science & Technology 50 (4), pp.1691-1702. (10.1021/acs.est.5b04413)
2015
- Higson, J. L. and Singer, M. B. 2015. The impact of the streamflow hydrograph on sediment supply from terrace erosion. Geomorphology 248 , pp.475. (10.1016/j.geomorph.2015.07.037)
- Singer, M. B. 2015. Impact scales of fluvial response to management along the Sacramento River, California, USA: transience versus persistence. In: Hudson, P. and Middelkoop, H. eds. Geomorphic Approaches to Integrated Floodplain Management of Lowland Fluvial Systems in North America and Europe. New York: Springer. , pp.53-85. (10.1007/978-1-4939-2380-9_4)
- Slater, L. J. , Singer, M. B. and Kirchner, J. W. 2015. Hydrologic versus geomorphic drivers of trends in flood hazard. Geophysical Research Letters 42 (2), pp.370-376. (10.1002/2014GL062482)
2014
- Singer, M. B. and Michaelides, K. 2014. How is topographic simplicity maintained in ephemeral dryland channels?. Geology 42 (12), pp.1091-1094. (10.1130/G36267.1)
- Michaelides, K. and Singer, M. B. 2014. Impact of coarse sediment supply from hillslopes to the channel in runoff-dominated, dryland fluvial systems. Journal of Geophysical Research: Earth Surface 119 (6), pp.1205. (10.1002/2013JF002959)
- Singer, M. B. et al. 2014. Floodplain ecohydrology: Climatic, anthropogenic, and local physical controls on partitioning of water sources to riparian trees. Water Resources Research 50 (5), pp.4490-4513. (10.1002/2014WR015581)
2013
- Donovan, P. M. et al., 2013. An isotopic record of mercury in San Francisco Bay sediment. Chemical Geology 349 (35), pp.87. (10.1016/j.chemgeo.2013.04.017)
- Singer, M. B. et al. 2013. Enduring legacy of a toxic fan via episodic redistribution of California gold mining debris. Proceedings of the National Academy of Sciences of the United States of America 110 (46), pp.18436. (10.1073/pnas.1302295110)
- Singer, M. B. et al. 2013. Contrasting water-uptake and growth responses to drought in co-occurring riparian tree species. Ecohydrology 6 (3), pp.402-412. (10.1002/eco.1283)
- Slater, L. J. and Singer, M. B. 2013. Imprint of climate and climate change in alluvial riverbeds: Continental United States, 1950-2011. Geology 41 (5), pp.595-598. (10.1130/G34070.1)
2012
- Kilham, N. E. , Roberts, D. and Singer, M. B. 2012. Remote sensing of suspended sediment concentration during turbid flood conditions on the Feather River, California-A modeling approach. Water Resources Research 48 (1)(10.1029/2011WR010391)
2011
- Springborn, M. , Singer, M. B. and Dunne, T. 2011. Sediment-adsorbed total mercury flux through Yolo Bypass, the primary floodway and wetland in the Sacramento Valley, California. Science of the Total Environment 412-41 , pp.203. (10.1016/j.scitotenv.2011.10.004)
2010
- Ghoshal, S. et al., 2010. Channel and floodplain change analysis over a 100-year period: Lower Yuba River, California. Remote Sensing 2 (7), pp.1797-1825. (10.3390/rs2071797)
- Dunne, T. , Constantine, J. A. and Singer, M. B. 2010. The role of sediment transport and sediment supply in the evolution of river channel and floodplain complexity. Chikei/Transactions, Japanese Geomorphological Union 31 (2), pp.155-170.
- Singer, M. B. 2010. Transient response in longitudinal grain size to reduced gravel supply in a large river. Geophysical Research Letters 37 (18), pp.n/a. (10.1029/2010GL044381)
2009
- Singer, M. B. and Aalto, R. 2009. Floodplain development in an engineered setting. Earth Surface Processes and Landforms 34 (2), pp.291-304. (10.1002/esp.1725)
- James, L. A. et al., 2009. Historical channel changes in the lower Yuba and Feather Rivers, California: Long-term effects of contrasting river-management strategies. In: James, L. A. , Rathburn, S. L. and Whittecar, G. eds. Management and Restoration of Fluvial Systems with Broad Historical Changes and Human Impacts. Vol. 451, Geological Society of America. , pp.57. (10.1130/2009.2451(04))
2008
- Singer, M. B. 2008. Downstream patterns of bed material grain size in a large, lowland alluvial river subject to low sediment supply. Water Resources Research 44 (12)(10.1029/2008WR007183)
- Allan James, L. and Singer, M. B. 2008. Development of the lower Sacramento valley flood-control system: historical perspective. Natural Hazards Review 9 (3), pp.125. (10.1061/(ASCE)1527-6988(2008)9:3(125))
- Singer, M. B. 2008. A new sampler for extracting bed material sediment from sand and gravel beds in navigable rivers. Earth Surface Processes and Landforms 33 (14), pp.2277. (10.1002/esp.1661)
- Singer, M. B. , Aalto, R. and James, L. A. 2008. Status of the lower Sacramento valley flood-control system within the context of its natural geomorphic setting. Natural Hazards Review 9 (3), pp.104. (10.1061/(ASCE)1527-6988(2008)9:3(104))
2007
- Singer, M. B. 2007. The influence of major dams on hydrology through the drainage network of the Sacramento River basin, California. River Research and Applications 23 (1), pp.55. (10.1002/rra.968)
2006
- Singer, M. B. and Dunne, T. 2006. Modeling the influence of river rehabilitation scenarios on bed material sediment flux in a large river over decadal timescales. Water Resources Research 42 (12)(10.1029/2006WR004894)
2004
- Singer, M. B. and Dunne, T. 2004. An empirical-stochastic, event-based program for simulating inflow from a tributary network: Framework and application to the Sacramento River basin, California. Water Resources Research 40 (7)(10.1029/2003WR002725)
- Singer, M. B. and Dunne, T. 2004. Modeling decadal bed material sediment flux based on stochastic hydrology. Water Resources Research 40 (3)(10.1029/2003WR002723)
2001
- Singer, M. B. and Dunne, T. 2001. Identifying eroding and depositional reaches of valley by analysis of suspended sediment Transport in the Sacramento River, California. Water Resources Research 37 (12), pp.3371-3381. (10.1029/2001WR000457)
Articles
- Quichimbo Miguitama, E. A. et al. 2026. The impact of model resolution on the water balance of a dryland basin. Hydrological Processes 40 (10) e70733. (10.1002/hyp.70733)
- Blake, G. et al., 2025. The impact of convection-permitting model rainfall on the dryland water balance. Hydrology and Earth System Sciences 29 , pp.7098-7125. (10.5194/hess-29-7093-2025)
- Kui, L. et al., 2025. Increased groundwater dependence of riparian vegetation in response to drought. Ecohydrology 18 (5) e70060. (10.1002/eco.70060)
- Gebrechorkos, S. H. et al., 2025. Warming accelerates global drought severity [RETRACTED]. Nature 642 , pp.628-635. (10.1038/s41586-025-09047-2)
- Daron, J. et al., 2025. SIMBOL: A method to co-produce impact-based seasonal outlooks. Climate Services 38 100579. (10.1016/j.cliser.2025.100579)
- Grieve, S. W. D. et al., 2025. GDBM: A database of global drainage basin morphology. PLoS ONE 20 (4) e0320771. (10.1371/journal.pone.0320771)
- Lochin, P. et al., 2025. Drivers of spatiotemporal patterns of riparian forest NDVI along a hydroclimatic gradient. Ecohydrology 18 (2) e2729. (10.1002/eco.2729)
- Odongo, R. A. et al., 2025. Drought impacts and community adaptation: perspectives on the 2020-2023 drought in East Africa. International Journal of Disaster Risk Reduction 119 105309. (10.1016/j.ijdrr.2025.105309)
- Singer, M. B. et al. 2024. Climatic controls on the length and shape of the world's drainage basins. Geophysical Research Letters 51 (24) e2024GL111220. (10.1029/2024GL111220)
- Cocking, K. et al. 2024. Locally defined seasonal rainfall characteristics within the Horn of Africa drylands from rain gauge observations. Journal of Hydrometeorology 25 (12), pp.1845-1861. (10.1175/jhm-d-23-0228.1)
- Lochin, P. et al., 2024. The Ant and the Grasshopper: contrasting responses and behaviors to water stress of riparian trees along a hydroclimatic gradient. Science of the Total Environment 952 175916. (10.1016/j.scitotenv.2024.175916)
- Salwey, S. et al., 2024. Developing water supply reservoir operating rules for large-scale hydrological modelling. Hydrology and Earth System Sciences 28 , pp.4203-4218. (10.5194/hess-28-4203-2024)
- Koppa, A. et al., 2024. Dryland self-expansion enabled by land–atmosphere feedbacks. Science 385 (6712), pp.967-972. (10.1126/science.adn6833)
- Rohde, M. M. et al., 2024. Groundwater-dependent ecosystem map exposes global dryland protection needs. Nature 632 , pp.101-107. (10.1038/s41586-024-07702-8)
- Rios Gaona, M. , Michaelides, K. and Singer, M. 2024. STORM v.2: A simple, stochastic rainfall model for exploring the impacts of climate and climate change at and near the land surface in gauged watersheds. Geoscientific Model Development 17 (13), pp.5387-5412. (10.5194/gmd-17-5387-2024)
- McMahon, C. A. et al., 2024. A river runs through it: Robust automated mapping of riparian woodlands and land surface phenology across dryland regions. Remote Sensing of Environment 305 114056. (10.1016/j.rse.2024.114056)
- Rohde, M. M. et al., 2024. Establishing ecological thresholds and targets for groundwater management. nature water 2 , pp.312-323. (10.1038/s44221-024-00221-w)
- Williams, J. et al., 2024. Seasonal and species‐level water‐use strategies and groundwater dependence in dryland riparian woodlands during extreme drought. Water Resources Research 60 (4) e2023WR035928. (10.1029/2023wr035928)
- MacLeod, D. et al. 2024. Sensitivity of rainfall extremes to unprecedented Indian Ocean Dipole events. Geophysical Research Letters 51 (5) e2023GL105258. (10.1029/2023gl105258)
- Quichimbo Miguitama, E. A. et al. 2023. Assessing the sensitivity of modelled water partitioning to global precipitation datasets in a data‐scarce dryland region. Hydrological Processes 37 (12) e15047. (10.1002/hyp.15047)
- Gebrechorkos, S. H. et al., 2023. Global high-resolution drought indices for 1981-2022. Earth System Science Data 15 (12), pp.5449–5466. (10.5194/essd-15-5449-2023)
- Koppa, A. et al., 2023. A lagrangian analysis of the sources of rainfall over the Horn of Africa drylands. Journal of Geophysical Research: Atmospheres 128 (12) e2022JD038408. (10.1029/2022jd038408)
- Warter, M. M. et al. 2023. Modeling seasonal vegetation phenology from hydroclimatic drivers for contrasting plant functional groups within drylands of the Southwestern USA. Environmental Research: Ecology 2 (2) 025001. (10.1088/2752-664X/acb9a0)
- Kibler, C. L. et al., 2023. Evapotranspiration regulates leaf temperature and respiration in dryland vegetation. Agricultural and Forest Meteorology 339 109560. (10.1016/j.agrformet.2023.109560)
- Salwey, S. et al., 2023. National-scale detection of reservoir impacts through hydrological signatures. Water Resources Research 59 (5) e2022WR033893. (10.1029/2022WR033893)
- Macleod, D. et al. 2023. Translating seasonal climate forecasts into water balance forecasts for decision making. PLOS Climate 2 (3) e0000138. (10.1371/journal.pclm.0000138)
- Rigby, J. M. et al., 2023. Climate services for the Greater Horn of Africa: interviews exploring practitioner perspectives from Kenya and beyond. Climate and Development 15 (3), pp.188-200. (10.1080/17565529.2022.2074350)
- Asfaw, D. T. et al., 2023. stoPET v1.0: a stochastic potential evapotranspiration generator for simulation of climate change impacts. Geoscientific Model Development 16 (2), pp.557-571. (10.5194/gmd-16-557-2023)
- Michaelides, K. et al., 2022. Reply to: Climate versus tectonics as controls on river profiles. Nature 612 (7941), pp.E15-E17. (10.1038/s41586-022-05419-0)
- Adloff, M. et al., 2022. Sustained water storage in Horn of Africa drylands dominated by seasonal rainfall extremes. Geophysical Research Letters 49 (21) e2022GL099299. (10.1029/2022GL099299)
- Sabathier, R. et al. 2022. High resolution spatiotemporal patterns of flow at the landscape scale in montane non‐perennial streams. River Research and Applications (10.1002/rra.4076)
- Chen, S. et al., 2022. Exploring exogenous controls on short- versus long-term erosion rates globally. Earth Surface Dynamics 10 (6), pp.1055-1078. (10.5194/esurf-10-1055-2022)
- Williams, J. et al., 2022. Local groundwater decline exacerbates response of dryland riparian woodlands to climatic drought. Global Change Biology (10.1111/gcb.16376)
- Quichimbo, E. A. et al. 2021. DRYP 1.0: A parsimonious hydrological model of DRYland Partitioning of the water balance. Geoscientific Model Development 14 , pp.6893-6917. (10.5194/gmd-14-6893-2021)
- Singer, M. B. et al. 2021. Hourly potential evapotranspiration at 0.1˚ resolution for the global land surface from 1981-present. Scientific Data 8 224. (10.1038/s41597-021-01003-9)
- Sargeant, C. I. and Singer, M. B. 2021. Local and non-local controls on seasonal variations in water availability and use by riparian trees along a hydroclimatic gradient. Environmental Research Letters 16 (8) 084018. (10.1088/1748-9326/ac1294)
- Kibler, C. L. et al., 2021. A brown wave of riparian woodland mortality following groundwater declines during the 2012-2019 California drought. Environmental Research Letters 16 084030. (10.1088/1748-9326/ac1377)
- Sabathier, R. et al. 2021. Vegetation responses to climatic and geologic controls on water availability in southeastern Arizona. Environmental Research Letters 16 (6) 064029. (10.1088/1748-9326/abfe8c)
- Warter, M. M. et al. 2021. Drought onset and propagation into soil moisture and grassland vegetation responses during the 2012–2019 major drought in Southern California. Hydrology and Earth System Sciences 25 (6), pp.3713–3729. (10.5194/hess-25-3713-2021)
- Rohde, M. M. et al., 2021. Groundwater dependence of riparian woodlands and the disrupting effect of anthropogenically altered streamflow. Proceedings of the National Academy of Sciences 118 (25) e2026453118. (10.1073/pnas.2026453118)
- Mehrnegar, N. et al. 2021. Exploring groundwater and soil water storage changes across the CONUS at 12.5 km resolution by a Bayesian integration of GRACE data into W3RA. Science of the Total Environment 758 143579. (10.1016/j.scitotenv.2020.143579)
- Mayes, M. et al., 2020. Climate sensitivity of water use by riparian woodlands at landscape scales. Hydrological Processes 34 (25), pp.4884-4903. (10.1002/hyp.13942)
- Quichimbo Miguitama, E. A. , Singer, M. B. and Cuthbert, M. O. 2020. Characterizing groundwater-surface water interactions in idealized ephemeral stream systems. Hydrological Processes 34 (18), pp.3792-3806. (10.1002/hyp.13847)
- Mehrnegar, N. et al. 2020. Comparing global hydrological models and combining them with GRACE by dynamic model data averaging (DMDA). Advances in Water Resources 138 103528. (10.1016/j.advwatres.2020.103528)
- Sargeant, C. I. , Singer, M. B. and Vallet-Coulomb, C. 2019. Identification of source-water oxygen isotopes in trees Toolkit (ISO-Tool) for deciphering historical water use by forest trees. Water Resources Research 55 (12), pp.10954-10975. (10.1029/2018WR024519)
- Chen, S. et al., 2019. Aridity is expressed in river topography globally. Nature 573 , pp.573-577. (10.1038/s41586-019-1558-8)
- Washburn, S. J. et al., 2019. Isotopic evidence for mercury photoreduction and retention on particles in surface waters of Central California, USA. Science of the Total Environment 674 , pp.451-461. (10.1016/j.scitotenv.2019.04.145)
- Nakamura, T. K. , Singer, M. B. and Gabet, E. J. 2018. Remains of the 19th century: deep storage of contaminated hydraulic mining sediment along the Lower Yuba River, California. Elementa: Science of the Anthropocene 6 (1) 70. (10.1525/elementa.333)
- Singer, M. , Michaelides, K. and Hobley, D. 2018. STORM 1.0: a simple, flexible, and parsimonious stochastic rainfall generator for simulating climate and climate change. Geoscientific Model Development 11 , pp.3713-3726. (10.5194/gmd-11-3713-2018)
- Phillips, C. B. et al., 2018. Effect of flood hydrograph duration, magnitude, and shape on bed load transport dynamics. Geophysical Research Letters 45 (16), pp.8264-8271. (10.1029/2018GL078976)
- Evans, C. M. , Dritschel, D. G. and Singer, M. B. 2018. Modeling subsurface hydrology in floodplains. Water Resources Research 54 (3), pp.1428-1459. (10.1002/2017WR020827)
- Michaelides, K. et al., 2018. Spatial and temporal analysis of hillslope-channel coupling and implications for the longitudinal profile in a dryland basin. Earth Surface Processes and Landforms (10.1002/esp.4340)
- Singer, M. B. and Michaelides, K. 2017. Deciphering the expression of climate change within the Lower Colorado River basin by stochastic simulation of convective rainfall. Environmental Research Letters 12 (10) 104011. (10.1088/1748-9326/aa8e50)
- Donovan, P. M. et al., 2016. Methylmercury degradation and exposure pathways in streams and wetlands impacted by historical mining. Science of the Total Environment 568 , pp.1192-1203. (10.1016/j.scitotenv.2016.04.139)
- Sargeant, C. and Singer, M. B. 2016. Sub-annual variability in historical water source use by Mediterranean riparian trees. Ecohydrology 9 (7), pp.1328-1345. (10.1002/eco.1730)
- Singer, M. et al. 2016. Hydrologic indicators of hot spots and hot moments of mercury methylation potential along river corridors. Science of the Total Environment 568 , pp.697-711.
- Donovan, P. M. et al., 2016. Isotopic composition of inorganic mercury and methylmercury downstream of a historical gold mining region. Environmental Science & Technology 50 (4), pp.1691-1702. (10.1021/acs.est.5b04413)
- Higson, J. L. and Singer, M. B. 2015. The impact of the streamflow hydrograph on sediment supply from terrace erosion. Geomorphology 248 , pp.475. (10.1016/j.geomorph.2015.07.037)
- Slater, L. J. , Singer, M. B. and Kirchner, J. W. 2015. Hydrologic versus geomorphic drivers of trends in flood hazard. Geophysical Research Letters 42 (2), pp.370-376. (10.1002/2014GL062482)
- Singer, M. B. and Michaelides, K. 2014. How is topographic simplicity maintained in ephemeral dryland channels?. Geology 42 (12), pp.1091-1094. (10.1130/G36267.1)
- Michaelides, K. and Singer, M. B. 2014. Impact of coarse sediment supply from hillslopes to the channel in runoff-dominated, dryland fluvial systems. Journal of Geophysical Research: Earth Surface 119 (6), pp.1205. (10.1002/2013JF002959)
- Singer, M. B. et al. 2014. Floodplain ecohydrology: Climatic, anthropogenic, and local physical controls on partitioning of water sources to riparian trees. Water Resources Research 50 (5), pp.4490-4513. (10.1002/2014WR015581)
- Donovan, P. M. et al., 2013. An isotopic record of mercury in San Francisco Bay sediment. Chemical Geology 349 (35), pp.87. (10.1016/j.chemgeo.2013.04.017)
- Singer, M. B. et al. 2013. Enduring legacy of a toxic fan via episodic redistribution of California gold mining debris. Proceedings of the National Academy of Sciences of the United States of America 110 (46), pp.18436. (10.1073/pnas.1302295110)
- Singer, M. B. et al. 2013. Contrasting water-uptake and growth responses to drought in co-occurring riparian tree species. Ecohydrology 6 (3), pp.402-412. (10.1002/eco.1283)
- Slater, L. J. and Singer, M. B. 2013. Imprint of climate and climate change in alluvial riverbeds: Continental United States, 1950-2011. Geology 41 (5), pp.595-598. (10.1130/G34070.1)
- Kilham, N. E. , Roberts, D. and Singer, M. B. 2012. Remote sensing of suspended sediment concentration during turbid flood conditions on the Feather River, California-A modeling approach. Water Resources Research 48 (1)(10.1029/2011WR010391)
- Springborn, M. , Singer, M. B. and Dunne, T. 2011. Sediment-adsorbed total mercury flux through Yolo Bypass, the primary floodway and wetland in the Sacramento Valley, California. Science of the Total Environment 412-41 , pp.203. (10.1016/j.scitotenv.2011.10.004)
- Ghoshal, S. et al., 2010. Channel and floodplain change analysis over a 100-year period: Lower Yuba River, California. Remote Sensing 2 (7), pp.1797-1825. (10.3390/rs2071797)
- Dunne, T. , Constantine, J. A. and Singer, M. B. 2010. The role of sediment transport and sediment supply in the evolution of river channel and floodplain complexity. Chikei/Transactions, Japanese Geomorphological Union 31 (2), pp.155-170.
- Singer, M. B. 2010. Transient response in longitudinal grain size to reduced gravel supply in a large river. Geophysical Research Letters 37 (18), pp.n/a. (10.1029/2010GL044381)
- Singer, M. B. and Aalto, R. 2009. Floodplain development in an engineered setting. Earth Surface Processes and Landforms 34 (2), pp.291-304. (10.1002/esp.1725)
- Singer, M. B. 2008. Downstream patterns of bed material grain size in a large, lowland alluvial river subject to low sediment supply. Water Resources Research 44 (12)(10.1029/2008WR007183)
- Allan James, L. and Singer, M. B. 2008. Development of the lower Sacramento valley flood-control system: historical perspective. Natural Hazards Review 9 (3), pp.125. (10.1061/(ASCE)1527-6988(2008)9:3(125))
- Singer, M. B. 2008. A new sampler for extracting bed material sediment from sand and gravel beds in navigable rivers. Earth Surface Processes and Landforms 33 (14), pp.2277. (10.1002/esp.1661)
- Singer, M. B. , Aalto, R. and James, L. A. 2008. Status of the lower Sacramento valley flood-control system within the context of its natural geomorphic setting. Natural Hazards Review 9 (3), pp.104. (10.1061/(ASCE)1527-6988(2008)9:3(104))
- Singer, M. B. 2007. The influence of major dams on hydrology through the drainage network of the Sacramento River basin, California. River Research and Applications 23 (1), pp.55. (10.1002/rra.968)
- Singer, M. B. and Dunne, T. 2006. Modeling the influence of river rehabilitation scenarios on bed material sediment flux in a large river over decadal timescales. Water Resources Research 42 (12)(10.1029/2006WR004894)
- Singer, M. B. and Dunne, T. 2004. An empirical-stochastic, event-based program for simulating inflow from a tributary network: Framework and application to the Sacramento River basin, California. Water Resources Research 40 (7)(10.1029/2003WR002725)
- Singer, M. B. and Dunne, T. 2004. Modeling decadal bed material sediment flux based on stochastic hydrology. Water Resources Research 40 (3)(10.1029/2003WR002723)
- Singer, M. B. and Dunne, T. 2001. Identifying eroding and depositional reaches of valley by analysis of suspended sediment Transport in the Sacramento River, California. Water Resources Research 37 (12), pp.3371-3381. (10.1029/2001WR000457)
Book sections
- Singer, M. B. et al. 2026. Examining dynamic ecohydrology in dryland riparian forests. In: Wilcox, B. et al., Routledge Handbook of Terrestrial Ecohydrology. London: Routledge. , pp.319-330. (10.4324/9781003383918-29)
- Jaeger, K. L. et al., 2017. Geomorphology and sediment regimes of intermittent rivers and ephemeral streams. In: Datry, T. , Bonada, N. and Boulton, A. eds. Intermittent Rivers and Ephemeral Streams. Ecology and Management Academic Press. , pp.21. (10.1016/B978-0-12-803835-2.00002-4)
- Singer, M. B. 2015. Impact scales of fluvial response to management along the Sacramento River, California, USA: transience versus persistence. In: Hudson, P. and Middelkoop, H. eds. Geomorphic Approaches to Integrated Floodplain Management of Lowland Fluvial Systems in North America and Europe. New York: Springer. , pp.53-85. (10.1007/978-1-4939-2380-9_4)
- James, L. A. et al., 2009. Historical channel changes in the lower Yuba and Feather Rivers, California: Long-term effects of contrasting river-management strategies. In: James, L. A. , Rathburn, S. L. and Whittecar, G. eds. Management and Restoration of Fluvial Systems with Broad Historical Changes and Human Impacts. Vol. 451, Geological Society of America. , pp.57. (10.1130/2009.2451(04))
Conferences
- Rigby, J. M. et al., 2025. Mobile phones in the drylands: How technology supports community information sharing in rural Kenya. Presented at: COMPASS '25 Toronto, Canada 22 - 25 July 2025. Proceedings of the 2025 ACM SIGCAS/SIGCHI Conference on Computing and Sustainable Societies. New York, USA: Association for Computing Machinery. , pp.167-183. (10.1145/3715335.3735464)
- Koppa, A. et al., 2022. Unraveling the origin of rainfall over Horn of Africa Drylands. Presented at: EGU General Assembly 2022 23-27 May 2022. EGU General Assembly 2022 Abstracts. Copernicus(10.5194/egusphere-egu22-5330)
Ymchwil
There are major uncertainties in environmental science regarding the impact of humans and climate on water resources, hydrologic fluxes, erosion, the sustainability and health of forests, and the fate and transport of contaminants. This is my research domain. I investigate environmental science problems from the perspectives of hydrology and geomorphology, with particular attention to how climate and humans force the hydrologic cycle and associated processes near the Earth's surface.
To learn more, please visit my research page: https://people.eri.ucsb.edu/~bliss/
If you are interested in joining my research group, please take note of several PhD studentship opportunities that I currently have available:
Addysgu
Rwy'n Gyfarwyddwr cyffredinol yr MSc newydd: Dŵr, Newid Hinsawdd a Chynaliadwyedd
Modiwlau perthnasol rydw i'n eu harwain:
EAT109: Dŵr yn yr Amgylchedd (PGT)
EA3333: Cwrs Maes Daearyddiaeth Ffisegol (UG)
EAT301: Traethawd Hir Ymchwil: Dŵr mewn Byd sy'n Newid (PGT)
Rwyf hefyd yn dysgu am:
EA2312: Geomorffoleg Proses a Hydroleg
Bywgraffiad
- Athro – Ysgol Gwyddorau'r Ddaear a'r Amgylchedd, Prifysgol Caerdydd (2021-presennol)
- Dirprwy Gyfarwyddwr – Sefydliad Ymchwil Dŵr, Prifysgol Caerdydd (2018-presennol)
- Cyfarwyddwr Addysgu Ôl-raddedig (2025-presennol)
- Pennaeth – Canolfan Cydnerthedd a Newid Amgylcheddol (2021-2025)
- Darllenydd – Ysgol Gwyddorau'r Ddaear a'r Amgylchedd, Prifysgol Caerdydd (2020-2021)
- Uwch Ddarlithydd – Ysgol Gwyddorau'r Ddaear a'r Môr, Prifysgol Caerdydd (2017-2020)
- Ymchwilydd - Sefydliad Ymchwil y Ddaear, Prifysgol California Santa Barbara (2017-presennol)
- Darlithydd – Ysgol Gwyddorau'r Ddaear a'r Amgylchedd, Prifysgol St Andrews (2007-2017)
- Ymchwilydd Cyswllt - Sefydliad Ymchwil y Ddaear, Prifysgol California Santa Barbara (2013-2017)
- Ymchwilydd Cynorthwyol - Sefydliad Ymchwil y Ddaear, Prifysgol California Santa Barbara (2003-2013)
- Cydymaith Ymchwil y Cyngor Ymchwil Cenedlaethol (Postdoc) - Academi Genedlaethol y Gwyddorau Unol Daleithiau (2005-2007)
- PhD – Ysgol Gwyddorau a Rheolaeth Amgylcheddol Donald Bren, Prifysgol California Santa Barbara (2003)
- BA Gwyddorau Amgylcheddol – Coleg y Wladwriaeth Evergreen (1993)
Anrhydeddau a dyfarniadau
- Ignacio Rodriguez-Iturbe Publication Award, Best Publication in Ecohydrology for 2016 (2017)
- Invited Keynote Speaker, ‘Reclaiming the Sierra 2015: The New Gold Rush’, The Sierra Fund (2015)
- Peer Review College Member, Natural Environment Research Council (2010-2013)
- Expert Panelist on Central Valley Flood Hazards, American Association of Geographers Annual Meeting (2007)
- Guest Editor, San Francisco Estuary and Watershed Science (2005
- Dozier Fellowship, Donald Bren School of Environmental Science & Management (1999)
Aelodaethau proffesiynol
- American Institute of Hydrology
- American Geophysical Union
- British Society for Geomorphology
- British Hydrological Society
Safleoedd academaidd blaenorol
University of St Andrews 2007-2017
Meysydd goruchwyliaeth
currently available projects:
Goruchwyliaeth gyfredol
Ardrawiad
Ar hyn o bryd rwy'n gyffredinol DP ar brosiect mawr, rhyngddisgyblaethol a ariennir gan Raglen Horizon 2020 yr UE.
Bydd prosiect DOWN2EARTH yn mynd i'r afael â heriau amlweddog prinder dŵr ac ansicrwydd bwyd o dan newid yn yr hinsawdd yn HAD, trwy hwyluso addasu sy'n canolbwyntio ar y gymuned a gwytnwch i effeithiau newid yn yr hinsawdd. Bydd yn defnyddio dull amlddisgyblaethol, cynhwysol, gan ddod â chymunedau lleol, arbenigwyr academaidd, offer cefnogi penderfyniadau newydd, strwythurau llywodraethu aml-lefel, canolfannau hinsawdd rhanbarthol, a chyrff anllywodraethol ynghyd. Bydd yn darparu gwasanaethau hinsawdd o'r radd flaenaf a pherthnasol i'r gymuned sy'n canolbwyntio ar brinder dŵr a'i ganlyniadau ar neu ger wyneb y Ddaear (felly DOWN2EARTH) i boblogaethau gwledig sy'n gynyddol agored i niwed yn HAD. Mae'r prosiect wedi'i gynllunio i gryfhau'r fframweithiau gwasanaethau hinsawdd presennol, gwella cymorth penderfyniadau i bobl, llywodraethau a chyrff anllywodraethol sy'n gwasanaethu cymunedau gwledig yr effeithir arnynt yng ngwledydd mwyaf bregus HAD (Kenya, Somalia, Ethiopia), ac i wella addasu a gwytnwch cymunedol i newid yn yr hinsawdd.
Ewch i'r wefan i ddysgu mwy: http://down2earthproject.org/
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Contact Details
Themâu ymchwil
Arbenigeddau
- Hydroleg
- Effeithiau ac addasu newid hinsawdd
- Geomorffoleg a phrosesau arwyneb y ddaear
