Skip to main content


Dr Nans Addor

Dr Nans Addor

Honorary Research Fellow

 Amory c255


Amory Building, University of Exeter, Rennes Drive, Exeter, EX4 4RJ , UK


I am a computational hydrologist using large samples (hundreds to thousands) of catchments and modular modelling frameworks to gain new insights into hydrological processes and climate change impacts. I co-produced the CAMELS attributes data set, I am further developing the suite of hydrological models FUSE and I am the Chair of the Panta Rhei working group on large-sample hydrology.

I am an Honorary Research Fellow at the University Exeter and, since January 2022, a Senior Hydrologist at Fathom. I previously worked as a Hydrologist at the Environment Agency and as a Postdoc at the University of East Anglia in Norwich, UK and at the National Center for Atmospheric Research in Boulder, USA. I hold a PhD from the University of Zurich and a Master's from ETH Zurich in Switzerland.

For publications and further details, please see my CVResearchGate and Google Scholar.

Broad research specialisms: 

Hydrology, climate change impacts, data science, community models, uncertainty assessments, adaptation to climate change


PhD Physical Geography (University of Zurich, Switzerland)
MSc Environmental Sciences (ETH Zurich, Switzerland)
BSc Environmental Sciences and Engineering (EPFL, Switzerland)


Back to top


Journal articles

Hoch J, Probyn I, Marra F, Lucas C, Savage J, Wing O, Sampson C, Addor N (2024). A bottom-up regionalization approach for extreme rainfall events.
Saoulis A, Moraga S, Lord N, Uhe P, Addor N (2024). Application of novel generative diffusion models to precipitation downscaling.
Moraga JS, Undorf S, Uhe P, Lord N, Addor N (2024). Bias correction of SMILEs: a bulk approach to preserve internal variability.
Färber C, Plessow H, Mischel S, Kratzert F, Addor N, Shalev G, Looser U (2024). GRDC-Caravan: extending the original dataset with data from the Global Runoff Data Centre.
Lord N, Hatchard S, Moraga JS, Addor N, Uhe P (2024). Influence of ENSO on extreme precipitation and peak river flow in the US.
Kratzert F, Addor N, Shalev G, Gilon O (2024). Living among Artiodactyls - Current status and future plans of the Caravan dataset.
Addor N, Lord N, Mani B, Loridan T, Mizukami N, Hoch J, Haylock M (2024). Modeling inland flooding caused by tropical cyclones in the US using AI-based synthetic events.
Wing O, Quinn N, Uhe P, Savage J, Sampson C, Addor N, Lord N, Collings T, Hatchard S, Hoch J, et al (2023). A 30 m resolution global fluvial–pluvial–coastal flood inundation model for any climate scenario.
Savage J, Uhe P, Wing O, Sampson C, Smith A, Lord N, Addor N, Hatchard S, Hoch J, Bates J, et al (2023). A new framework for building global flood models for the present day and future climates.
Höge M, Kauzlaric M, Siber R, Schönenberger U, Horton P, Schwanbeck J, Floriancic MG, Viviroli D, Wilhelm S, Sikorska-Senoner AE, et al (2023). CAMELS-CH: hydro-meteorological time series and landscape attributes for 331 catchments in hydrologic Switzerland. Earth System Science Data, 15(12), 5755-5784.
Kratzert F, Nearing G, Addor N, Erickson T, Gauch M, Gilon O, Gudmundsson L, Hassidim A, Klotz D, Nevo S, et al (2023). Caravan - a global community dataset for large-sample hydrology. Scientific Data, 10(1).
Kratzert F, Nearing G, Addor N, Erickson T, Gauch M, Gilon O, Gudmundsson L, Hassidim A, Klotz D, Nevo S, et al (2023). Caravan - a global community dataset for large-sample hydrology.
Addor N, Lord N, Uhe P, Quinn N, Wing O, Sampson C (2023). Contrasting changes in extreme rainfall and river flow as global mean temperature increases.
Reyniers N, Osborn TJ, Addor N, Darch G (2023). Projected changes in droughts and extreme droughts in Great Britain strongly influenced by the choice of drought index. Hydrology and Earth System Sciences, 27(5), 1151-1171.
Saavedra D, Mendoza PA, Addor N, Llauca H, Vargas X (2022). A multi‐objective approach to select hydrological models and constrain structural uncertainties for climate impact assessments. Hydrological Processes, 36(1).
Siber R, Höge M, Kauzlaric M, Schönenberger U, Horton P, Schwanbeck J, Viviroli D, Zappa M, Sikorska-Senoner AE, Pool S, et al (2022). CAMELS-CH - Building a Common Open Database for Catchments in Switzerland.
Delaigue O, Brigode P, Andréassian V, Perrin C, Etchevers P, Soubeyroux J-M, Janet B, Addor N (2022). CAMELS-FR: a large sample hydroclimatic dataset for France to explore hydrological diversity and support model benchmarking.
Fowler KJA, Acharya SC, Addor N, Chou C, Peel MC (2021). CAMELS-AUS: Hydrometeorological time series and landscape attributes for 222 catchments in Australia. Earth System Science Data, 13(8), 3847-3867. Abstract.
Fowler K, Chandra Acharya S, Addor N, Chou C, Peel M (2021). CAMELS-AUS: Hydrometeorological time series and landscape attributes for 222 catchments in Australia.
Andréassian V, Delaigue O, Perrin C, Janet B, Addor N (2021). CAMELS-FR: a large sample, hydroclimatic dataset for France, to support model testing and evaluation.
Bloomfield JP, Gong M, Marchant BP, Coxon G, Addor N (2021). How is Baseflow Index (BFI) impacted by water resource management practices?. Hydrology and Earth System Sciences, 25(10), 5355-5379.
Newman AJ, Stone AG, Saharia M, Holman KD, Addor N, Clark MP (2021). Identifying sensitivities in flood frequency analyses using a stochastic hydrologic modeling system. Hydrology and Earth System Sciences, 25(10), 5603-5621.
Uhe P, Mitchell D, Bates PD, Addor N, Neal J, Beck HE (2021). Model cascade from meteorological drivers to river flood hazard: flood-cascade v1.0. GEOSCIENTIFIC MODEL DEVELOPMENT, 14(8), 4865-4890.  Author URL.
Goldberg D, Kinnear L, Kobierska-Baffie F, Addor N, He H, Zha Q, Reyniers N, Maussion F (2021). Modelling climate change impacts on glaciers and water resources in China  using OGGM and FUSE.
La Follette PT, Teuling AJ, Addor N, Clark M, Jansen K, Melsen LA (2021). Numerical daemons of hydrological models are summoned by extreme precipitation. Hydrology and Earth System Sciences, 25(10), 5425-5446.
Reyniers N, Addor N, Darch G, He Y, Zha Q, Osborn T (2021). Understanding changes in meteorological drought in regional UK Climate Projections (UKCP18).
Musselman KN, Addor N, Vano JA, Molotch NP (2021). Winter melt trends portend widespread declines in snow water resources. Nature Climate Change, 11(5), 418-424. Abstract.
Chagas VBP, Chaffe PLB, Addor N, Fan FM, Fleischmann AS, Paiva RCD, Siqueira VA (2020). CAMELS-BR: hydrometeorological time series and landscape attributes for 897 catchments in Brazil. EARTH SYSTEM SCIENCE DATA, 12(3), 2075-2096.  Author URL.
Coxon G, Addor N, Bloomfield JP, Freer J, Fry M, Hannaford J, Howden NJK, Lane R, Lewis M, Robinson EL, et al (2020). CAMELS-GB: hydrometeorological time series and landscape attributes for 671 catchments in Great Britain. Earth System Science Data, 12(4), 2459-2483. Abstract.
Konapala G, Kao SC, Addor N (2020). Exploring Hydrologic Model Process Connectivity at the Continental Scale Through an Information Theory Approach. Water Resources Research, 56(10). Abstract.
Coxon G, Addor N, Alvarez-Garreton C, Do HX, Fowler K, Mendoza PA (2020). Large-sample hydrology to foster open and collaborative research: a review of recent progress and grand challenges.
Hakala K, Addor N, Gobbe T, Ruffieux J, Seibert J (2020). Risks and opportunities for a Swiss hydroelectricity company in a changing climate. Hydrology and Earth System Sciences, 24(7), 3815-3833. Abstract.
Addor N, Clark MP, Henn B (2020). The emergence of community models in hydrology.
Bloomfield J, Addor N, Coxon G, Gong M, Marchant B (2020). Using the CAMELS-GB large-sample dataset to investigate controls on baseflow (BFI).
Addor N, X. H, Alvarez-Garreton C, Coxon G, Fowler K, Mendoza PA (2019). Large-sample hydrology: recent progress, guidelines for new datasets and grand challenges. Hydrological Sciences Journal, 65(5), 712-725.
Addor N, Melsen LA (2019). Legacy, Rather Than Adequacy, Drives the Selection of Hydrological Models. Water Resources Research, 55(1), 378-390.
Addor N, Nearing G, Prieto C, Newman AJ, Le Vine N, Clark MP (2018). A Ranking of Hydrological Signatures Based on Their Predictability in Space. WATER RESOURCES RESEARCH, 54(11), 8792-8812.  Author URL.
Vano JA, Arnold JR, Nijssen B, Clark MP, Wood AW, Gutmann ED, Addor N, Hamman J, Lehner F (2018). DOs and DON'Ts for using climate change information for water resource planning and management: guidelines for study design. Climate Services, 12, 1-13.
Hakala K, Addor N, Seibert J (2018). Hydrological Modeling to Evaluate Climate Model Simulations and Their Bias Correction. Journal of Hydrometeorology, 19(8), 1321-1337.
Melsen LA, Addor N, Mizukami N, Newman AJ, Torfs PJJF, Clark MP, Uijlenhoet R, Teuling AJ (2018). Mapping (dis)agreement in hydrologic projections. Hydrology and Earth System Sciences, 22(3), 1775-1791.
Alvarez-Garreton C, Mendoza PA, Boisier JP, Addor N, Galleguillos M, Zambrano-Bigiarini M, Lara A, Puelma C, Cortes G, Garreaud R, et al (2018). The CAMELS-CL dataset: catchment attributes and meteorology for large sample studies – Chile dataset. Hydrology and Earth System Sciences, 22(11), 5817-5846.
Etter S, Addor N, Huss M, Finger D (2017). Climate change impacts on future snow, ice and rain runoff in a Swiss mountain catchment using multi-dataset calibration. Journal of Hydrology Regional Studies, 13, 222-239.
Addor N, Newman AJ, Mizukami N, Clark MP (2017). The CAMELS data set: catchment attributes and meteorology for large-sample studies. Hydrology and Earth System Sciences, 21(10), 5293-5313.
Addor N, Rohrer M, Furrer R, Seibert J (2016). Propagation of biases in climate models from the synoptic to the regional scale: Implications for bias adjustment. Journal of Geophysical Research: Atmospheres, 121(5), 2075-2089.
Addor N, Ewen T, Johnson L, Çöltekin A, Derungs C, Muccione V (2015). From products to processes: Academic events to foster interdisciplinary and iterative dialogue in a changing climate. Earth's Future, 3(8), 289-297.
Addor N, Fischer EM (2015). The influence of natural variability and interpolation errors on bias characterization in RCM simulations. Journal of Geophysical Research: Atmospheres, 120(19), 10-195.
Addor N, Seibert J (2014). Bias correction for hydrological impact studies – beyond the daily perspective. Hydrological Processes, 28(17), 4823-4828.
Addor N, Rössler O, Köplin N, Huss M, Weingartner R, Seibert J (2014). Robust changes and sources of uncertainty in the projected hydrological regimes of Swiss catchments. Water Resources Research, 50(10), 7541-7562.
Addor N, Jaun S, Fundel F, Zappa M (2011). An operational hydrological ensemble prediction system for the city of Zurich (Switzerland): skill, case studies and scenarios. Hydrology and Earth System Sciences, 15(7), 2327-2347.
Lombardot T, Kottmann R, Giuliani G, de Bono A, Addor N, Glöckner FO (2007). MetaLook: a 3D visualisation software for marine ecological genomics. BMC Bioinformatics, 8(1).


Hakala K, Addor N, Teutschbein C, Vis M, Dakhlaoui H, Seibert J (2019). Hydrological Modeling of Climate Change Impacts. In  (Ed) Encyclopedia of Water, Wiley, 1-20.

Back to top

Edit Profile