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M.Sc. Helena Gerdener

Scientific staff member

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© Gerdener

Biography

M.Sc. Helena Gerdner joined the Institute for Geodesy and Geoinformation (IGG), Astronomical, Physical and mathematical Geodesy Group at the University of Bonn, in 2017.

  • M.Sc.
  • B.Sc.
  • Since Oct. 2017 Wissenschaftliche Mitarbeiterin am Institut für Geodäsie und Geoinformation, Professur für Astronomische, Physikalische und Mathematische Geodäsie, Universität Bonn.
  • 2015 – 2017 Master of Science am Institut für Geodäsie und Geoinformation, Universität Bonn.
  • 2012 – 2015 Bachelor of Science am Institut für Geodäsie und Geoinformation, Universität Bonn.
  • Gravity Recovery and Climate Experiment (GRACE) postprocessing for Level-3 solutions.
  • GRACE- based hydrological drought indicators.
  • Time series analysis.
  • Assimilation of GRACE into hydrological models
  • BMBF GlobeDrought
  • DFG-GlobalCDA
  • Geodetic Earth Observation.
  • Satellite Geodesy and Earth System.
  • Betreuung Bachelor- und Masterarbeiten.
  • Mitglied im Institutsvorstand (2018-2022).

  1. Döll, P., Hasan, H. M. M., Schulze, K., Gerdener, H., Börger, L., Shadkam, S., Ackermann, S., Hosseini-Moghari, S.-M., Müller Schmied, H., Güntner, A., Kusche, J. (2024) Leveraging multi-variable observations to reduce and quantify the output uncertainty of a global hydrological model: evaluation of three ensemble-based approaches for the Mississippi River basin. Hydrology and Earth System Sciences, 28(10), 2259-2295, doi.10.5194/hess-28-2259-2024, https://hess.copernicus.org/articles/28/2259/2024/.

  2. Klos, A., Kusche, J., Leszczuk, G., Gerdener, H., Schulze, K., Lenczuk, A., & Bogusz, J. (2023) Introducing the Idea of Classifying Sets of Permanent GNSS Stations as Benchmarks for Hydrogeodesy. Journal of Geophysical Research: Solid Earth, e2023JB026988. https://doi.org/10.1029/2023JB026988.

  3. Gerdener, H., Kusche, J., Schulze, K., Doell, P., Klos, A.  (2023) The global land water storage data set release 2 (GLWS2.0) derived via assimilating GRACE and GRACE-FO data into a global hydrological model. J Geod 97, 73. https://doi.org/10.1007/s00190-023-01763-9.

  4. Güntner, A., Gerdener, H., Boergens, E., Kusche, J., Kollet, S., Dobslaw, H., Hartick, C., Sharifi, E., Flechtner, F. (2023) Veränderungen der Wasserspeicherung in Deutschland seit 2002 aus Beobachtungen der Satellitengravimetrie. Hydrologie & Wasserbewirtschaftung, 67, (2), 74-89. doi.org/10.5675/HyWa_2023.2_1.

  5. Gerdener, H., Schulze, K., Kusche, J.(2023) GLWS 2.0: A global product that provides total water storage anomalies, groundwater, soil moisture, and surface water with a spatial resolution of 0.5∘ from 2003 to 2019. PANGAEA, https://doi.org/10.1594/PANGAEA.954742.

  6. Dibi-Anoh, P. A., Koné, M., Gerdener, H., Kusche, J., N'Da, C. K. (2022) Hydrometeorological Extreme Events in West Africa: Droughts. Surveys in Geophysics, November 2022, https://doi.org/10.1007/s10712-022-09748-7.

  7. Gerdener, H., Kusche, J., Schulze, K., Ghazaryan, G., Dubovyk, O. (2022) Revising precipitation – water storages – vegetation signatures with GRACE-based data assimilation. Journal of Hydrology, Volume 612, Part A, September 2022, 128096, https://doi.org/10.1016/j.jhydrol.2022.128096.

  8. Meza, I., Rezaei, E.E., Siebert, S., Ghazaryan, G., Nouri, H., Dubovyk, O., Gerdener, H., Herbert, C., Kusche, J., Popat, E., Rhyner, J., Jordaan, A., Walz, Y., Hagenlocher, M. (2021) Drought risk for agricultural systems in South Africa: Drivers, spatial patterns, and implications for drought risk management, Science of The Total Environment, Volume 799, 149505, doi.org/10.1016/j.scitotenv.2021.149505.

  9. Deggim, S., Eicker, A., Schawohl, L., Gerdener, H., Schulze, K., Engels, O., Kusche, J., Saraswati, A. T., van Dam, T., Ellenbeck, L., Dettmering, D., Schwatke, C., Mayr, S., Klein, I., and Longuevergne, L. (2021) RECOG RL01: correcting GRACE total water storage estimates for global lakes/reservoirs and earthquakes, Earth Syst. Sci. Data, 13, 2227–2244, doi.org/10.5194/essd-13-2227-2021.

  10. Gerdener, H., Schulze, K., Olga, E., Kusche, J. (2020) RECOG-EQ RL01 Earthquake correction for CSR, GFZ and ITSG solutions of GRACE level 3 total water storage anomalies from 2003-01 to 2016-12 correcting for the Sumatra-Andaman (2004) and Tohoku (2011) earthquakes. PANGAEA, https://doi.org/10.1594/PANGAEA.921923.

  11. Meza, I., Siebert, S., Döll, P., Kusche, J., Herbert, C., Eyshi Rezaei, E., Nouri, H., Gerdener, H., Popat, E., Frischen, J., Naumann, G., Vogt, J. V., Walz, Y., Sebesvari, Z., and Hagenlocher, M. (2020) Global-scale drought risk assessment for agricultural systems, Nat. Hazards Earth Syst. Sci., 20, 695–712, doi.org/10.5194/nhess-20-695-2020.

  12. Gerdener, H., Engels, O., Kusche, J. (2020) A framework for deriving drought indicators from the Gravity Recovery and Climate Experiment (GRACE), Hydrol. Earth Syst. Sci., 24, 227–248, https://doi.org/10.5194/hess-24-227-2020.

  13. Gerdener, H. (2017) Influence of ENSO and Atlantic modes on climate variables over West Africa. Masterarbeit, Universität Bonn, 2017.

  14. Gerdener, H. (2015) Developing a multivariate drought index for West Africa from satellite remote sensing products and model outputs. Bachelorarbeit, Universität Bonn, 2015.

Contact

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Helena Gerdener

+49 228 73-6151

2.002

Nußallee 15

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