Dr. Ing. Husain Najafi Postdoctoral Research Scientist Address
Computational Hydrosystems (CHS)
Building 7.1, Room 411
Phone +49 341 235 1851
What I do
Dr. Najafi research is centered on hydroclimate variability and predictability at short, medium-range, and sub-seasonal to seasonal time scales. He has developed a real-time soil moisture drought forecasting system in Germany (
HS2S) providing soil moisture outlooks four the next four calendar weeks. The system has become operational since January 2021. In addition, Dr. Najafi is investigating the devastating 2021 summer flood in Ahr Valley by skill assessment of UFZ state-of-the-art horological forecasting system. Before joining UFZ, he has contributed in policy advice pertinent to water resources management in semi-arid regions in Southwest Asia. More information
Modular Observation Solution for Earth Systems (MOSES)
Novel observing systems will improve understanding of the complex interactions across scales and Earth compartments. My research is part of the
MOSES project, a joint facility in the research field “Earth and Environment” proposed and implemented by the Helmholtz Centres.
Online forecast information out of my research will provide information for conducting new event-oriented observation campaigns and contributing to progress in Earth observation. Forecast information of weekly precipitation, maximum air-temperature and soil moisture over Germany contributed to MOSES by UFZ will be disseminated online via the
Find more information on below links ORCID iD RG Google Scholar
Head Prof. Dr. Sabine Attinger Department of Computational Hydrosystems
Deputy HeadProf. Dr. Luis Samaniego Department of Computational Hydrosystems
Assistance Nora Pabst Phone +49 341 235-1281
Phone +49 341 235-1250
Phone +49 341 235-482533
Permoserstraße 15 | 04318 Leipzig
News / Press
Dec 1, 2022
Masooma Batool won the "Best student poster award" at the XXI International Nitrogen Workshop. This conference, hosted by ETSIAAB, Universidad Politécnica de Madrid, brought together nearly 300 papers from authors from 40 countries in Madrid, Spain, October 24-28, 2022. At the conference, Masooma and her colleagues presented long-term trends in soil nitrogen (N) surplus across Europe (1850-2019). Excess N provides information on the trends and spatial distribution of N surplus in soil systems across Europe, highlighting agricultural areas in Central Europe as nitrogen hotspots. These areas have undergone dramatic changes over the past 150 years. Importantly, we show that estimates of N surplus are subject to large uncertainties, requiring explicit consideration of these uncertainties when analyzing past trends in N surplus. Nov 15, 2022 Earthrise - Mission Klima How our research contributes to climate mitigation and adaptation is demonstrated in this WELT report.
Video at www.welt.de (only in German)
05:50': Hohes Holz research station
10:40': FORMIND in the Vislab 15:45': Fragmentation of forests 43:00': FORMIND and climate scenarios Oct 12, 2022
Dr. Husain Najafi won the UFZ Young Scientist Award for Applied Research 2022. The award goes to him for his excellence and dedication in development of the operational drought forecasting system in Germany and investigation of 2021 summer flood predictability. Hydrological forecasting systems are the fundamental component of early warning systems - disaster risk reduction.
Sep 2, 2022
The collaborative project "Standardisiertes Monitoring von Wachstumsreaktionen wichtiger Waldbaumarten auf klimatische Extremereignisse" (MW³) with participation of the UFZ will develop a standardized monitoring system and protocol to record growth responses of important Central European forest tree species with a focus on climatic extremes. Future extreme events and their impact on forest carbon fluxes in Germany will be analyzed using smart models.
May 16, 2022
Interview with Dr. F. J. Bohn in the Dlf Audiothek | Umwelt und Verbraucher | "Agrarminister-Sonderkonferenz: Am Waldumbau führt kein Weg vorbei"
Link to interview (only in German)
Aug 20, 2021
Open house days of the
Swabian MOSES Campaign received large public interest. A research consortium of several Helmholtz centers, universities and the German Weather Service, investigates the cause and effects of hydro-meteorological extremes such as heavy thunderstorms, high precipitation and floods as well as heatwaves and droughts. The MOSES initiative is coordinated by the UFZ. Aug 17, 2021
Start of the third phase of
Collaborative Research Centre AquaDiva, investigating the links between surface and subsurface signals in the earth critical zone. Two projects are lead by researchers of CHS. They will investigate with modeling and observations how temporal and spatial variation of surface input and processes during subsurface transit drive the water flow and element transport to groundwater and rivers.
Older news are stored in the news archive. New publications
Friedrich Boeing, Oldrich Rakovec, Rohini Kumar, Luis Samaniego, Martin Schrön, Anke Hildebrandt, Corinna Rebmann, Stephan Thober, Sebastian Müller, Steffen Zacharias, Heye Bogena, Katrin Schneider, Ralf Kiese, Sabine Attinger, and Andreas Marx. High-resolution drought simulations and comparison to soil moisture observations in Germany. Hydrol. Earth Syst. Sci., 26, 5137–5161, 2022.
In this paper, we deliver an evaluation of the second generation operational German drought monitor (
) with a state-of-the-art compilation of observed soil moisture data from 40 locations and four different measurement methods in Germany. We show that the expressed stakeholder needs for higher resolution drought information at the one-kilometer scale can be met and that the agreement of simulated and observed soil moisture dynamics can be moderately improved.
Mahnken, M., Cailleret, M., Collalti, A., Trotta, C., Biondo, C., D’Andrea, E., ... & Reyer, C. P. O. (2022). Accuracy, realism and general applicability of European forest models. Global Change Biology.
Pacheco-Labrador, J., Weber, U., Ma, X., Mahecha, M. D., Carvalhais, N., Wirth, C., Huth, A.,
Bohn, F. J., Kraemer, G., Heiden, U., FunDivEUROPE members, and Migliavacca, M.: EVALUATING THE POTENTIAL OF DESIS TO INFER PLANT TAXONOMICAL AND FUNCTIONAL DIVERSITIES IN EUROPEAN FORESTS, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-1/W1-2021, 49–55, 2022.
Bevacqua, E., De Michele, C., Manning, C., Couasnon, A., Ribeiro, A.F.S., Ramos, A.M., Vignotto, E., Bastos, A., Blesić, S., Durante, F., Hillier, J., Oliveira, S.C., Pinto, J.G., Ragno, E., Rivoire, P., Saunders, K., van der Wiel, K., Wu, W., Zhang, T., Zscheischler, J. (2021): Guidelines for Studying Diverse Types of Compound Weather and Climate Events. Earth Future.
Najafi H, Robertson AW, Massah Bavani AR, Irannejad P, Wanders N, Wood EF. Improved multi-model ensemble forecasts of Iran's precipitation and temperature using a hybrid dynamical-statistical approach during fall and winter seasons. Int J Climatol. 2021;1–28.
Hari, V., Rakovec, O., Markonis, Y. et al. Increased future occurrences of the exceptional 2018–2019 Central European drought under global warming. Sci Rep 10, 12207 (2020).
Schmidt, L., Heße, F., Attinger, S., Kumar, R., (2020): "Challenges in applying machine learning models for hydrological inference: A case study for flooding events across Germany", Water Resources Research
Jing, M., Kumar, R., Heße, F., Thober, S., Rakovec, O., Samaniego, L., Attinger, S., (2020): "Assessing the response of groundwater quantity and travel time distribution to 1.5, 2, and 3 °C global warming in a mesoscale central German basin", Hydrology and Earth System Sciences