Paleohydrological extreme events:
evidences, archives, models, future perspectives”

Dates: 9-14th September 2018

Kis-Tisza Ecocenter, Tiszalök, Hungary

Hungarian gastronomy

EX-AQUA 2018
Paleohydrological extreme events:
evidences, archives, models, future perspectives

Venue: Kis-Tisza Ecocenter, Tiszalök, Hungary

Contact person: Sándor Gulyás, exaqua2018@gmail.com

Scientific Committee:

Sándor Gulyás (University of Szeged, Hungary), Pál Sümegi (University of Szeged, Hungary), Lajos Szlávik (Hungarian Hydrological Society), Alessandro Fontana (University of Padova, Italy),  Jessica Reeves (Federation University of Australia, Australia), Peter Almond (Lincoln University, New Zealand)

Local Organizing Committee:

Sándor Gulyás, Dávid Molnár (University of Szeged, Hungary), Tamás Dan, Mrs. Gabriella Megyeri Szögi  (Wise Owl Lajos Szögi Foundation, Hungary), Sándor Gömze (Local Government of the city of Tiszalök), Csaba Mécs (KOKOSZ – President), Zoltán Molnár (KOKOSZ – Secretary general)

The title EX-AQUA consists of the Latin words “ex” (meaning “from” but also “ancient”) and “aqua” (water) and it symbolizes the processes related to the lack or the abundance of water in the past. The EX-AQUA project is focused on understanding the processes and archives of floods and droughts at various spatio-temporal scales. Apart from their catastrophic impacts on natural systems and humans, refining as well as devising methods and tools for their future prediction under climate change scenarios is also in the center of attention. Long-term data needed for such predictions are generally rare from direct observations, and therefore, the use of paleohydrological archives can be extremely useful for extending the records and improving our modeling results. Geoarcheology provides information on the human aspect of our records aiding understanding of human resilience and adaptation to paleohydrological events.

The September 2018 meeting is organized by the Department of Geology and Paleontology, University of Szeged, Hungary in collaboration with the Wise Owls Lajos Szögi Foundation. The event is planned to last 6 days with 3 days for talks and poster presentations.


You can submit abstracts for oral or poster presentations related to any of the

following topics:

– Holocene hydrological events and climate change

– Historical flood events and chronology

– Geochronology of palaeohydrological events: methods and results

– Events, phases or periods of flooding and drought: recognition and distinction

– Human impact and societal resilience: Geoarchaeology & Palaeohydrology

– Quaternary fluvial system evolution and flood/drought variations

– Weather, climate and chronicles: temporal series and archives

– Palaeoenvironmental analyses and palaeohydrology

– New techniques of relevance for palaeohydrological investigations

Venue: Kis-Tisza Ecocenter, Tiszalök (https://kistisza.hu)

The Kis-Tisza ecopark established on an oxbow lake with traditional poled floodplain houses and exhibition on the flora, fauna of the landscape as well as the traditions of floodplain economy

The venue is found in NE Hungary in a secluded area along the Tisza River in the city of Tiszalök just two hours drive from Budapest on the M0 and M3 freeways (ca. 210 km). Exhibition rooms display the conservation values of the area including wildlife, geology. There is an oxbow lake nearby hosting an ecological park under the supervision of an GNO, the Wise Owls Lajos Szögi Foundation with boardwalks and traditional post houses of the floodplain giving an insight into traditional life on the floodplain, as well as the natural history of the area.

Geological, paleo- and recent hydrological features of interest in the area

The Tisza River is the second largest river in Hungary crossing the Great Hungarian Plain (GHP) from the Ukrainian border to Serbia. Preceding the 19th century river regulations, this river had an extensive floodplain with flood-free Pleistocene natural levees offering settlement possibilities for various cultures from the Neolithic onwards. Inhabitants of the area, where water covered about two-thirds of the entire lowland for most of the year, were engaged in so-called floodplain economy exploiting the river and floodplain resources in line with the seasonal cycle of floods. Medieval travelers write about the exuberance of freshwater and aquatic fauna in their statements of about 50% of the river is composed of fish. The best examples of the functioning of this fluvial system with numerous ancient levees, oxbow lakes and still active floodplains, some of which enjoy protection, are found in the Upper Tisza region in NE Hungary. As this area is the most prone to early spring floods, plans are made to turn some of the areas into artificial reservoirs for the storage of floodwaters reducing flood risk and supporting irrigation and water supply to one of the driest regions in Central Europe with an annual precipitation below 300 mm during the growth seasons. Numerous national parks, ecoparks, geoparks help in the conservation of these unique landscape features and work to make these known to the wider public. There is a guided visit possibility to the Tiszalök Hydropower plant, where issues and environmental consequences of river diversion and utilization of this renewable energy source is also to be discussed. The area also hosts one of the most outstanding wine areas in Hungary, which has been a part of the UNESCO World Heritage since 2002: the Tokaj wine region. The famous alkaline grasslands of the UNESCO Heritage Hortobágy National Park are also nearby and serve as a good example for preserving values of a cultural and natural landscape hosting a diverse wildlife. Geological and hydrological evolution of the area was thought to be man-made but recent research done in collaboration between the national park and the Dept of Geology, University of Szeged brought contradicting results, which will be also discussed. That’s why this area was considered to be an ideal place for hosting the EXAQUA 2018 event with numerous possibilities for visitors to gain an insight into traditional riparian environment, fluvial morphology, flood hazards and management in the past and the present, new planned and actualized flood protection measures.

Hydrological characteristics of the area of Tiszalök preceding the 19th century river regulations

Spring flood on the Tisza and its tributaries in the Upper Tisza region

Aerial photograph of the Tiszalök Hydropowerplant with views of the modern and original now inactive riverbed

Landsat aerial view of the wider region of the venue with various paleo and modern fluviomorphological features

Landsat aerial photo of Tiszalök and the oxbow lake hosting the Kis-Tisza Ecopark

Landsat aerial photo of the Hortobágy with Pleistocene natural paleohydrological and modern hydrological features

Landsat aerial photo of the Upper Tisza region from Tiszalök to Tokaj

Aerial view of the Upper Tisza Region with the area of the Hortobágy on the south and part of the Nyírség alluvial fan to the east.

Hydrological power plant at Tiszalök
Floodplain of the Bodrog, a tributary of the Tisza River from the air
Confluence of the Tisza and Bodrog Rivers at Tokaj.
Late spring-early summer flooding on the Sajó River
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