Collaborative Research Centre 1502
The German Research Foundation DFG has decided on November 25, 2021, to establish the Collaborative Research Centre CRC1502 at the University of Bonn.
 | www.dfg.de |  | www.uni-goettingen.de | ||
 | www.uni-bonn.de |  | www.geoverbund-abcj.de | ||
 | www.fz-juelich-de |  | www.uni-koeln.de | ||
 | www.dwd.de |  | www.mkw.nrw |
Regional Climate Change:
Disentangling the Role of Land Use and Water Management
The CRC1502 joins forces in the University of Bonn and its project partners to address one of the most challenging problems in our understanding of climate change.
While several continental regions on Earth are getting wetter, others are drying out not only in terms of precipitation but also measured by the increase or decrease in surface water, water stored in the soils, the plant root zone, and in groundwater. Observations, however, do not support a simple dry-gets-dryer and wet-gets-wetter logic and existing climate models fail to explain observed patterns of hydrological change sufficiently.
This CRC aims to close this gap in understanding. To better comprehend the origin of these patterns, it is necessary to build a modelling framework that explains past observations as realistically as possible, accounts for potential drivers of change that may have been understudied in the past, and can predict future changes.
The central hypothesis
Humans – through decades of land-use change and intensified water use and management – have caused persistent modifications in the coupled water and energy cycles of land and atmosphere.
Compared to greenhouse gas (GHG) forcing and natural variability, these human-induced changes contribute considerably to the observed trends in water storage at the regional scale. We hypothesize that – next to known local effects – human land management, land and water use changes have altered the regional atmospheric circulation and related water transports. These changes in the water balance’s spatial patterns have, it is hypothesized, created and amplified imbalances that lead to excessive drying or wetting in more remote regions.
To address these hypotheses a broad range of scientific disciplines collaborates closely to further develop the IMS in order to allow for reproduction of these interactions. We will test the central hypothesis for a single region of continental size in the 1st phase (Europe/Eurasia) and in later phases evaluate the transferability of our approach for regions with different environmental conditions. We will develop evidence-based sustainability criteria for land and water use activities.
Four scientific Cluster + one Service-Cluster
The structure of the CRC considers four clusters. This will enable us to take a more comprehensive view and merge process understanding and integration of experimental results. All projects will be supported by Z: Service projects.
For detailed description of the clusters please click on the corresponding link.
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Newsletter
Please find attached our DETECT newsletter. Here we will, in a quarterly format, publish news and activities within and in the scientific and political environment of our CRC, and also provide beneficial information on the non-scientific challenges you might face during your work in DETECT.
Please enjoy reading!
DETECT newsletter #02 | July 2022
DETECT newsletter #01 | March 2022
CRC Lecture Series
To introduce the PhD students to interdisciplinary science conducted in the CRC, a lecture series is held twice a year. The series addresses the different disciplines in an introductory fashion, including concepts and techniques relevant for research in modelling and observation of the water cycle, as well as of the land surface and its use, also beyond what is applied in current CRC projects.
date | time | title | responsible lecturer |
20.09.2022 | 08:00 - 16:00 | Data assimilation and parameter estimation | Hendricks-Franssens, Harrie-Jan |
18.10.2022 | 08:00 - 11:00 | Hydrogeophysics | Huisman, Johan A. |
18.10.2022 | 13:00 - 16:00 | Service operations | Leyer, Michael |
15.11.2022 | 08:00 - 11:00 | Agricultural economics | Hüttel, Silke |
15.11.2022 | 13:00 - 16:00 | Ground-based sensing of soil moisture | Bogena, Heye |
20.12.2022 | 08:00 - 11:00 | Statistical methods in weather and climate research | Friederichs, Petra |
20.12.2022 | 13:00 - 16:00 | Data management and high-performance computing | Stein, Olaf |
17.01.2023 | 08:00 - 11:00 | High-resolution atmosphere modelling | Valmassoi, Arianna |
17.01.2023 | 13:00 - 16:00 | Observation of the water cycle | de Lannoy, Gabrielle |
14.02.2023 | 08:00 - 11:00 | Crop modelling | Ewert, Frank |
14.02.2023 | 13:00 - 16:00 | tbd | invited lecturer |
14.03.2023 | 08:00 - 11:00 | Machine learning | Gall, Jürgen |
14.03.2023 | 13:00 - 16:00 | Global climate model simulations | Fiedler, Stephanie |
DETECT Seminar
“The land surface in the climate system”
In the DETECT Land & Climate Seminar, scientists of the CRC present the research progress of their project, but also international speakers external to the CRC are invited to present results of their investigations addressing issues within the wider context of the CRC, including scientists associated with projects of the CRC.
The seminar takes place irregularly on Mondays starting at 10:15. After an approximately 45 min. talk the presenters are happy to answer questions in a short discussion. The event is held via Zoom. Please contact the coordinator Frank Siegismund, if you would like to participate.
date | speaker | title | project |
17.10.2022 | Guilleaume Lobet, Juan Baca Cabrera | “Soil-plant-atmosphere modelling at organ scale” | C02 |
31.10.2022 | Jürgen Kusche, Charlotte Hacker | “Modeling Terrestrial Water Storage” | C03 |
21.11.2022 | Hugo Storm, Josef Baumert | “Crops class prediction models using (probabilistic) machine learning approaches” | B04 |
28.11.2022 | guest speaker invited by cluster A | tbd | |
19.12.2022 | Thomas Gaiser, Dominik Behrend | “Modeling water and nutrient fluxes in cropping systems” | C02 |
02.01.2023 | Nicolas Brüggemann, Youri Rothfuss, Daniel Schulz | “Developing and deploying fully automated, stationary and mobile gas and isotope measurement systems” | A03 |
16.01.2023 | Jan Börner, Marco Ferro | ”Empirical and modelling techniques to analyse LULCC” | A06 |
30.01.2023 | Wulf Amelung, Heike Schimmel | “Ecosystem parameterization” | C03 |
Cluster-Kickoff-Meetings
The first DETECT cluster meetings are scheduled as follows:
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Cluster A
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Aug., 11th
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09:00 - 11:00
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Cluster B
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Sept., 12th
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10:00 - 12:00
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Cluster C
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July, 19th
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09:00 - 13:00
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Cluster D
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July, 4th
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13:30 - 15:30
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Speakers
University of Bonn
Geodesy and Geoinformation
Nußallee 17
53115 Bonn
+49 228 73-2629
kusche
University of Göttingen
Agricultural Economics
Platz der Göttinger Sieben 5
37073 Göttingen
+49 551 39-24846
huettel
Forschungszentrum Jülich GmbH
Bio- and Geosciences
52425 Jülich
+49 2461 614570
vereecken
Coordination Office
Temporary address at ILR:
Collaborative Research Centre (SFB) 1502 - DETECT
Institute for Food and Resource Economics
Meckenheimer Allee 174
53115 Bonn
+49 228 73-68721
Coordination Office
Participating Institutions
 | University of Bonn |
| Institute of Geodesy and Geoinformation (IGG) | |
| Institute of Crop Science and Resource Conservation (INRES) | |
| Institute for Food and Resource Economics (ILR) | |
| Institute for Geosciences and Meteorology (IGM) | |
| Institute for Computer Science (CS) | |
| Innovation Campus Bonn (ICB)) | |
| High Performance Computing and Analytics Lab (HPC/A) |
 | University of Cologne |
| Institute for Geophysics and Meteorology (IGM) |
| University of Göttingen |
| Division of Agronomy (DA) | |
| Division of Agricultural Economics and Rural Development (DARE) |
 | Research Centre Jülich |
| Institute of Bio- and Geosciences - Agrosphere (IBG-3) | |
| Jülich Supercomputing Centre (JSC) |
 | German National Meteorological Service |
| Hans Ertel Centre for Weather Research at the Universities of Bonn and Cologne (HErZ) |
