Geographisches Institut

Personen

Dr. Natalie Ceperley

Wissenschaftliche Mitarbeiterin

Hydrologie

Telefon
+41 31 684 88 64
E-Mail
natalie.ceperley@unibe.ch
Büro
402
Postadresse
Universität Bern
Geographisches Institut
Hallerstrasse 12
CH-3012 Bern

Natalie Ceperley ist eine interdisziplinäre Ökohydrologin mit einer Ausbildung, die die biologischen, physikalischen und sozialen Wissenschaften umfasst. Sie hat einen Bachelor of Arts in Biologie mit einem interdisziplinären Schwerpunkt in Global Development Studies vom Grinnell College, Grinnell, IA (2003, USA), einen Master of Environmental Science mit einem Zertifikat in Afrikastudien von der Yale University School of Forestry and Environmental Studies in New Haven, CT (2008, USA) und einen Ph.D. von der École Polytechnique Fédérale de Lausanne (2014, EPFL, CH) in Umwelttechnik.

 

Im Laufe ihrer Ausbildung verbrachte sie viel Zeit im Feld.  In Nord- und Südamerika arbeitete sie an Naturschutzthemen in Iowa, Kalifornien, Minnesota, Alaska und Belize.  In Westafrika studierte sie zunächst im Senegal, dann unterrichtete sie Umwelterziehung während eines US-Friedenskorpsdienstes in der Islamischen Republik Mauretanien, dann erforschte sie als Fulbright-Stipendiatin in der Republik Benin traditionelles Umweltwissen, Botanik und heilige Stätten und schließlich führte sie ihre Doktorarbeit in Burkina Faso durch.  Ihre Doktorarbeit über die Ökohydrologie der Schnittstelle zwischen Savanne und Landwirtschaft gehört zu den ersten umfassenden, interdisziplinären Studien in Westafrika, die stabile Wasserisotope, drahtlose Sensornetzwerke, Eddy-Kovarianz und partizipative Workshops und Öffentlichkeitsarbeit zusammenbrachten.

 

Natalies Postdoc-Arbeit führte sie zu neuen Kooperationen und Gruppen an der EPFL, der University of British Columbia in Vancouver, an die Universität Lausanne und schließlich an das Geographische Institut der Universität Bern. Während ihrer ersten Postdoc-Stelle bei Dr. Andrea Rinaldo trug sie ihre westafrikanische Feldexpertise zu einem Versuch bei, das Verständnis und die Vorhersage von durch Wasser übertragenen Krankheiten, insbesondere Bilharziose, mit modernster Modellierung in Burkina Faso zu verbessern, basierend auf hydrologischen Echtzeitdaten und partizipatorischer Öffentlichkeitsarbeit. Während ihrer anschließenden Postdoc-Stelle konnte sie ihre Kompetenz für Feldarbeit an schwer zugänglichen Orten auf neue Gebiete übertragen, indem sie sich einem von Dr. Bettina Schaefli geleiteten Projekt in den Schweizer Alpen (Vallon de Nant, Vaud) anschloss. Ihre derzeitige Forschung nutzt stabile Isotope und neuartige Tracer (Umwelt-DNA), um das Verständnis der alpinen Hydrologie zu verbessern, insbesondere im Hinblick auf die Auswirkungen der Waldexpansion und der sich verändernden Schneedecke. Ihre jüngste Forschungsarbeit in Zusammenarbeit mit der Berner Fachhochschule - Studiengang Forstwirtschaft - untersucht die hydrologischen Folgen der Holzernte an steilen Hängen.

 

Natalies Leidenschaft gilt der Feldforschung, die gleichzeitig modernste Technologien einsetzt und Menschen befähigt, das Management ihrer Umwelt selbst in die Hand zu nehmen. Während ihrer gesamten Ausbildung und Forschung hat Natalie besonders gerne mit Studenten gearbeitet und unterrichtet. Letztendlich hofft sie, dass ihre Arbeit die menschliche Gesellschaft und natürliche Ökosysteme widerstandsfähiger macht.

Areas of professional focus at GIUB

• Alpine hydrology
• Dry-land ecohydrology
• Innovative water tracers: Stable isotopes, eDNA
• Hydrologic monitoring
• Forest hydrology

Collaborations

• Forest Hydrology collaboration with BFH, M. Schwartz (Link)
• Forest Ecosystem Services Vietnam (Link
• CAAST (Link)

Further professional interests

• Interdisciplinary and transdisciplinary research
• Participatory research,  citizen science, and environmental education
• Forest ecosystem services
• Sustainable Development

Field experience

European Alps (Switzerland)
West Africa (Burkina Faso, Senegal, Mauritania, Benin)
North America (Belize, USA: California, Alaska, Minnesota, Iowa, New England) 

Languages

English (Native), German (B2),  French (C2)
Basic: Spanish, Wolof, Hassaniya-Arabic, Yoruba, Gourmantche 

OrCID (Link)
G-Scholar (Link)
Persönliche Website (Englisch, Link)

Jump to: 2024 | 2023 | 2022 | 2021 | 2020 | 2019

2024

Olusola, Adeyemi; Castelli, Giulio; Ceperley, Natalie (18 April 2024). HELPING: Co-creating and Communicating Water Solutions in a Globally Changing World. In: Session HS1.3.1 HELPING science for solutions decade. 10.5194/egusphere-egu24-4773

Ceperley, Natalie; Kurmann, Sabina; Meier, Anna; Helfer, Martine; Schaefli, Bettina (16 April 2024). Exposing Seasonal and Spatial Variability in Storage and Release Upstream of the Outlet. In: HS2.2.5 The invisible controls of catchment hydrology: storage, flows and interactions in the subsurface. European Geosciences Union, Annual Meeting. Copernicus 10.5194/egusphere-egu24-10603

Ceperley, Natalie; Gimeno, Teresa E.; Jacobs, Suzanne R.; Beyer, Matthias; Dubbert, Maren; Fischer, Benjamin; Geris, Josie; Holko, Ladislav; Kübert, Angelika; Le Gall, Samuel; Lehmann, Marco M.; Llorens, Pilar; Millar, Cody; Penna, Daniele; Prieto, Iván; Radolinski, Jesse; Scandellari, Francesca; Stockinger, Michael; Stumpp, Christine; Tetzlaff, Dörthe; ... (2024). Toward a common methodological framework for the sampling, extraction, and isotopic analysis of water in the Critical Zone to study vegetation water use. WIREs Water(e1727) Wiley 10.1002/wat2.1727

Arheimer, Berit; Cudennec, Christophe; Castellarin, Attilio; Grimaldi, Salvatore; Heal, Kate V.; Lupton, Claire; Sarkar, Archana; Tian, Fuqiang; Kileshye Onema, Jean-Marie; Archfield, Stacey; Blöschl, Günter; Chaffe, Pedro L. Borges; Croke, Barry F.W.; Dembélé, Moctar; Leong, Chris; Mijic, Ana; Mosquera, Giovanny M.; Nlend, Bertil; Olusola, Adeyemi O.; Polo, María J.; ... (2024). The IAHS Science for Solutions decade, with Hydrology Engaging Local People IN a Global world (HELPING) (In Press). Hydrological sciences journal Taylor & Francis 10.1080/02626667.2024.2355202

2023

Ba, Rokhaya; Ceperley, Natalie (2023). Isotopic analysis of extracted water from a larch (Larix decidua) stand in a high mountain watershed (Vallon de Nant - Switzerland) [Dataset]. Zenodo 10.5281/zenodo.10227167

Ceperley, Natalie; Barbeta, Adrià; Kübert, Angelika; Marttila, Hannu; Prieto, Iván; Penna, Daniele; Floriancic, Marius G.; Lehmann, Marco; Voltas, Jordi; Zuecco, Giulia (2023). Isotopic analysis: How our community analyzes soil and plant water samples for their isotopic composition [Dataset]. Zenodo 10.5281/zenodo.10125128

Ceperley, Natalie; Meier, Anna; Helfer, Martine (27 September 2023). L'hydrologie : Porteuse de Surprises Dans Le Vallon de Nant.

Dembélé, Moctar; Salvadore, Elga; Zwart, Sander; Ceperley, Natalie; Mariéthoz, Grégoire; Schaefli, Bettina (2023). Water accounting under climate change in the transboundary Volta River Basin with a spatially calibrated hydrological model. Journal of hydrology, 626 Elsevier 10.1016/j.jhydrol.2023.130092

Orlowski, Natalie; Rinderer, Michael; Dubbert, Maren; Ceperley, Natalie; Hrachowitz, Markus; Gessler, Arthur; Rothfuss, Youri; Sprenger, Matthias; Heidbüchel, Ingo; Kübert, Angelika; Beyer, Matthias; Zuecco, Giulia; McCarter, Colin (2023). Challenges in studying water fluxes within the soil-plant-atmosphere continuum: A tracer-based perspective on pathways to progress. Science of the total environment, 881, p. 163510. Elsevier 10.1016/j.scitotenv.2023.163510

Kurmann, Sabina; Ceperley, Natalie (2023). Storage-Discharge Characteristics of Headwaters by Tracer Analysis: A Case Study in the Vallon de Nant over the Recession Period 2022. [Software & Other Digital Items] 10.5281/ZENODO.8112454

Gentile, Alessio; Canone, Davide; Ceperley, Natalie; Gisolo, Davide; Previati, Maurizio; Zuecco, Giulia; Schaefli, Bettina; Ferraris, Stefano (2023). Towards a conceptualization of the hydrological processes behind changes of young water fraction with elevation: a focus on mountainous alpine catchments. Hydrology and earth system sciences, 27(12), pp. 2301-2323. European Geosciences Union EGU 10.5194/hess-27-2301-2023

URycki, Dawn R.; Good, Stephen P.; Crump, Byron C.; Ceperley, Natalie C.; Brooks, J. Renée (5 June 2023). Microbial Communities Reveal Sources of Streamflow in Response to Early-Season Storm Event (Unpublished). In: Advancing watershed science using machine learning, diverse data, and mechanistic modeling from the summit to the sea.

Ceperley, Natalie; Michelon, Anthony; Beria, Harsh; Larsen, Joshua; Vennemann, Torsten; Schaefli, Bettina (28 April 2023). When four or more (tracers) are better than one and why you should ski (to sample). In: EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, HS2.2.5 Role of subsurface runoff, soil moisture and surface-subsurface feedback in hydrology: Closing gaps in observations, models and system understanding. 10.5194/egusphere-egu23-12171

Gentile, Alessio; Canone, Davide; Ceperley, Natalie; Gisolo, Davide; Previati, Maurizio; Zuecco, Giulia; Schaefli, Bettina; Ferraris, Stefano (27 April 2023). What explains low young water fractions at high elevations? In: EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, HS2.2.7 Isotope and tracer methods: flow paths characterization, catchment response and transformation processes. 10.5194/egusphere-egu23-1230

Dembélé, Moctar; Salvadore, Elga; Zwart, Sander; Ceperley, Natalie; Mariéthoz, Grégoire; Schaefli, Bettina (27 April 2023). Multiscale water accounting under climate change in a transboundary West African basin. In: EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, HS2.1.2 Advances in African hydrology and climate: monitoring, modelling, water management, food and water security | PICO. 10.5194/egusphere-egu23-8955

Ceperley, Natalie; Fässler, Linus; Leiser, Peter; Schaefli, Bettina (26 April 2023). Teaching by doing or a field course in our backyard: the first geosensing of the environment course in this geography institute. In: EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EOS2.4 Education and teaching in hydrology: changing values and practices for a new era. 10.5194/egusphere-egu23-13006

Schaefli, Bettina; Ceperley, Natalie (26 April 2023). When snow and ice are gone: beyond hydrological regime changes, what are the nuts and bolts of future streamflow generation processes? In: EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, HS2.1.7 From snow and glacier hydrology to catchment runoff. 10.5194/egusphere-egu23-15908

Fässler, Linus; Ceperley, Natalie; Leiser, Peter; Schaefli, Bettina (24 April 2023). Monitoring an ephemeral stream with a Teensy 3.2+ audio shield to determine water level only from the noise of a stream. In: EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, HS1.2.1 The MacGyver session for innovative and/or self made tools to observe the geosphere, including frontiers in river flow monitoring. 10.5194/egusphere-egu23-14370

Ifejika Speranza, Chinwe; Akinyemi, Felicia Olufunmilayo; Baratoux, David; Benveniste, Jérôme; Ceperley, Natalie Claire; Driouech, Fatima; Helmschrot, Jörg (2023). Enhancing the Uptake of Earth Observation Products and Services in Africa Through a Multi-level Transdisciplinary Approach. Surveys in geophysics, 44(1), pp. 7-41. Springer 10.1007/s10712-022-09724-1

2022

Larsen, Annegret; Larsen, Joshua; Thurnheer, Sarah; d'Epagnier, Raphael; Angst, Christof; Auberson, Cecile; Ceperley, Natalie Claire; Schaefli, Bettina (18 September 2022). Do Beavers Increase Carbon Storage? First Assessment of Beaver Impacts on the Riverine Carbon Budget in Switzerland (Unpublished). In: The 9th International Beaver Symposium. Brașov, Romania. 2022-09-18/2022-09-22.

Ceperley, Natalie (2022). Les Secrets Dans l'eau Qui Coule Des Montagnes [Performance or Exhibition]. Bern: Nacht der Forschung

URycki, Dawn; Good, Stephen; Crump, Byron; Ceperley, Natalie; Brooks, Renee (19 June 2022). Shifts in Streamwater Microbial Diversity Track Storm Hydrograph Dynamics (Unpublished). In: Frontiers in Hydrology, Future of water. San Juan, Puerto Rico.

Dembélé, Moctar; Vrac, Mathieu; Ceperley, Natalie; Zwart, Sander J.; Larsen, Josh; Dadson, Simon J.; Mariéthoz, Grégoire; Schaefli, Bettina (29 May 2022). Shifting of Streamflow Timing and Seasonality under Climate Change in the Volta River Basin. In: IAHS Scientific Assembly. Montpellier, France: IAHS 10.5194/iahs2022-545

Gentile, Alessio; Bevilacqua, Ivan; Canone, Davide; Ceperley, Natalie; Gisolo, Davide; N'Sassila, Mesmer; Previati, Maurizio; Zuecco, Giulia; Schaefli, Bettina; Ferraris, Stefano (27 May 2022). Seasonal compartmentalisation of water in a grassland at 2600 m asl (Unpublished). In: EGU General Assembly 2022. Vienna, Austria. 23–27 May 2022.

Schaefli, Bettina; Binkert, Ladina; Benelli, Luca; Ceperley, Natalie; Leiser, Peter; Baumgartner, Jan; Berger, Benjamin; Wyss, Kevin (24 May 2022). What role do glaciers play in smoothing streamflow during summer rainfall events? A case study from the Swiss Alps. In: EGU General Assembly 2022 From snow and glacier hydrology to catchment runoff. 10.5194/egusphere-egu22-9540

Ceperley, Natalie Claire; Schaefli, Bettina; Ferraris, Stefano; Bischoff, Maarika (2022). Stable Isotopes of Water from the Glacier de Martinets, 14-September-2021. [Software & Other Digital Items] 10.5281/ZENODO.6011934

Rüdisühli, Manuel; Pleisch, Hans Peter; Ceperley, Natalie; Schaefli, Bettina; Bischoff, Maarika (2022). Stable Water Isotopes in Fresh Snow Along 2 Slopes in the Canton of Grisons/Graubünden, Switzerland: The "Chruez", Praettigau and Eastward Ascent to the Vilan Peak. [Software & Other Digital Items] 10.5281/ZENODO.6011404

Dembélé, Moctar; Vrac, Mathieu; Ceperley, Natalie; Zwart, Sander J.; Larsen, Josh; Dadson, Simon J.; Mariéthoz, Grégoire; Schaefli, Bettina (2022). Contrasting changes in hydrological processes of the Volta River basin under global warming. Hydrology and earth system sciences, 26(5), pp. 1481-1506. European Geosciences Union EGU 10.5194/hess-26-1481-2022

Ceperley, Natalie; Michelon, Anthony; Beria, Harsh; Vennemann, Torsten; Schaefli, Bettina (2022). Studying the dynamic of a high Alpine catchment through the scope of multiple natural tracers. In: EGU General Assembly 2022. 10.5194/egusphere-egu22-9590

Gentile, Alessio; Bevilacqua, Ivan; Canone, Davide; Ceperley, Natalie; Gisolo, Davide; N'Sassila, Mesmer; Previati, Maurizio; Zuecco, Giulia; Schaefli, Bettina; Ferraris, Stefano (2022). Seasonal compartmentalisation of water in a grassland at 2600 m a.s.l. In: EGU General Assembly 2022. 10.5194/egusphere-egu22-9190

Michelon, Anthony; Ceperley, Natalie; Beria, Harsh; Vennemann, Torsten; Schaefli, Bettina (2022). Studying the dynamic of a high alpine catchment based on multiple natural tracers. Hydrology and earth system sciences discussions European Geosciences Union 10.5194/hess-2022-48

2021

Ceperley, Natalie; Ba, Rokhaya; Beria, Harsh; Michelon, Anthony; Larsen, Joshua; Venneman, Torsten; Schaefli, Bettina (April 2021). Water accessed differently by Larix decidua according to an alpine gradient. In: {EGU} General Assembly. vEGU21: Gather Online. 19–30 April 2021. 10.5194/egusphere-egu21-14428

Mächler, Elvira; Salyani, Anham; Walser, Jean-Claude; Larsen, Annegret; Schaefli, Bettina; Altermatt, Florian; Ceperley, Natalie (2021). Environmental DNA simultaneously informs hydrological and biodiversity characterization of an Alpine catchment. Hydrology and earth system sciences, 25(2), pp. 735-753. European Geosciences Union EGU 10.5194/hess-25-735-2021

Michelon, Anthony; Schaefli, Bettina; Ceperley, Natalie; Beria, Harsh (2021). Short Description of the Vallon de Nant Research Site [Dataset]. Zenodo 10.5281/zenodo.4432226

Ceperley, Natalie (January 2021). The Challenge Of Ground Truth Data for Water Resource Management (West Africa) (Unpublished). In: Global Change in Africa: Role of Space Observations. Bern, Switzerland. 11-15 January 2021.

Michelon, Anthony; Benoit, Lionel; Beria, Harsh; Ceperley, Natalie; Schaefli, Bettina (2021). Benefits from high-density rain gauge observations for hydrological response analysis in a small alpine catchment. Hydrology and earth system sciences, 25(4), pp. 2301-2325. European Geosciences Union EGU 10.5194/hess-25-2301-2021

2020

Dembele, Moctar; Zwart, Sander; Ceperley, Natalie C; Mariethoz, Gregoire; Schaefli, Bettina (15 December 2020). Combining Water Accounting Plus (WA+) and Hydrological Modelling for Water Resource Reporting under Climate Change in the Volta Basin (Unpublished). In: H171 - Water and Society: Water Resources Management and Policy in a Changing World. Tuesday, 15 December 2020.

Dembélé, Moctar; Zwart, Sander; Ceperley, Natalie; Mariéthoz, Grégoire; Schaefli, Bettina (20 November 2020). Modelling the impact of climate change on hydrological processes in the Volta river basin (Unpublished). In: 18th Swiss Geoscience Meeting. On-Line.

Dembélé, Moctar; Ceperley, Natalie; Zwart, Sander J.; Salvadore, Elga; Mariethoz, Gregoire; Schaefli, Bettina (2020). Potential of satellite and reanalysis evaporation datasets for hydrological modelling under various model calibration strategies. Advances in water ressources, 143, p. 103667. Elsevier 10.1016/j.advwatres.2020.103667

Michelon, Anthony; Benoit, Lionel; Beria, Harsh; Ceperley, Natalie; Schaefli, Bettina (2020). A 2-minute rainfall (12 locations) and discharge time series at the Vallon de Nant catchment, Switzerland, for 2018 summer seasons [Dataset]. Zenodo 10.5281/zenodo.3946242

Ceperley, Natalie; Zuecco, Giulia; Beria, Harsh; Carturan, Luca; Michelon, Anthony; Penna, Daniele; Larsen, Joshua; Schaefli, Bettina (8 May 2020). Reduced Fraction of Young Water in Alpine Catchments with Increased Seasonal Snow Cover (Unpublished). In: Isotope and tracer methods: flow paths characterization, catchment response and transformation processes. On-Line. Friday 08 May. 10/ghnvhz

Dembélé, Moctar; Zwart, Sander; Ceperley, Natalie; Mariéthoz, Grégoire; Schaefli, Bettina (May 2020). Multivariate and Spatially Calibrated Hydrological Model for Assessing Climate Change Impacts on Hydrological Processes in West Africa. In: Hydrological change: Regional hydrological behaviour under transient climate and land use conditions 22 (p. 9143). Vienna, Austria: Copernicus GmbH 10/ghnvhx

Maechler, Elvira; Ceperley, Natalie; Salyani, Anham; Walser, Jean-Claude; Larsen, Annegret; Schaefli, Bettina; Altermatt, Florian (May 2020). The Variation in Genetic Material of a High Alpine Catchment Reveals (Sub) Surface Exchange. In: HS8.1.2 Subsurface flow and transport from pore to catchment scales: Concepts, observations, applications and modeling 22 (p. 9602). Vienna, Austria: Copernicus GmbH 10.5194/egusphere-egu2020-9602

Michelon, Anthony; Antoniazza, Gilles; Ceperley, Natalie; Lane, Stuart; Schaefli, Bettina (May 2020). Poking Holes in Discharge Time Series with Photographic Evidence. In: Advances in river monitoring and modelling: data-scarce environments, real-time approaches, Inter-comparison of innovative and classical frameworks, uncertainties, Harmonisation of methods and good practices. On-Line. Mon, 04 May, 10:45–12:30 (CEST). 10/ghnvh4

Beria, Harsh; Benoit, Lionel; Ceperley, Natalie; Michelon, Anthony; Larsen, Joshua R.; Mariéthoz, Grégoire; Schaefli, Bettina (April 2020). Improving Hydrologic Model Realism by Using Stable Water Isotopes (Unpublished). In: Models and Data: Understanding and representing spatio-temporal dynamics of hydrological processes. 4-8 May 2020. 10.5194/egusphere-egu2020-19769

Ceperley, Natalie; Zuecco, Giulia; Beria, Harsh; Michelon, Anthony; Schaefli, Bettina (5 February 2020). Seasonal snow ages water from alpine catchments in unexpected ways. In: Virtual Alpine Observatory (VAO), International Symposium. Lecture hall EG16, University of Bern, Department of Chemistry and Biochemistry, Freiestrasse 3, 3012 Bern.

Beria, Harsh; Larsen, Joshua R.; Michelon, Anthony; Ceperley, Natalie C.; Schaefli, Bettina (2020). HydroMix v1.0: a new Bayesian mixing framework for attributing uncertain hydrological sources. Geoscientific model development (GMD), 13(5), pp. 2433-2450. Copernicus Publications 10.5194/gmd-13-2433-2020

Ceperley, Natalie; Zuecco, Giulia; Beria, Harsh; Carturan, Luca; Michelon, Anthony; Penna, Daniele; Larsen, Joshua; Schaefli, Bettina (2020). Seasonal snow cover decreases young water fractions in high Alpine catchments. Hydrological processes, 34(25), pp. 4794-4813. Wiley 10.1002/hyp.13937

Michelon, Anthony; Benoit, Lionel; Beria, Harsh; Ceperley, Natalie; Schaefli, Bettina (2020). On the value of high density rain gauge observations for small Alpine headwater catchment hydrology. Hydrology and earth system sciences discussions, 2020, pp. 1-39. European Geosciences Union 10.5194/hess-2020-371

2019

Ceperley, Natalie; Michelon, Anthony; Beria, Harsh; Salyani, Anham; Ba, Rokhaya; Larsen, Annegret; Mächler, Elvira; Altermatt, Florian; Schaefli, Bettina; Vennemann, Torsten W. (2019). Isotopes and related data associated with water tracing with environmental DNA in a high-Alpine catchment [Dataset]. Zenodo 10.5281/zenodo.3515062

Woods, Ross A.; Larsen, Joshua R.; Schaefli, Bettina; Ceperley, Natalie Claire (2019). In a Warming World, Is Snowmelt Rate Slower or Faster? In: AGU Fall Meeting.

Dembele, M.; Ceperley, N. C.; Zwart, S.; Mariethoz, G.; Schaefli, B. (2019). What is the impact of calibration procedure on improving hydrological simulations with reanalysis and satellite-based evaporation products? In: AGU Fall Meeting.