Sedimentary Dynamics in Sustainable Management of Rivers and Coasts

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IAHR-SPAIN WATER Day

Sedimentary Dynamics in Sustainable Management of Rivers and Coasts 

Date: Wednesday, February 26th  2020. From 9 A.M. to 6 P.M. (Spain time)

Event location: Assembly Hall of the Center of Studies of Applied Techniques of CEDEX. Calle de Alfonso XII, 3, 28014 Madrid.

See it in the map:  http://www.cedex.es/CEDEX/LANG_CASTELLANO/ORGANISMO/CENTYLAB/CETA/LOCACONT/

INTRODUCTION

The sedimentary dynamics from the headwaters of the rivers and streams to their mouth in the sea and the movement of sediments along the coast are two of the most important elements in the sustainable management of rivers and coasts, also representing one of the factors which most affect the distribution of habitats of numerous aquatic organisms and the morphology of rivers and coasts. However, human activity has often disturbed this transit. In fact, the sedimentary imbalance, induced by the interaction of different human infrastructures with the transport of solid cargo, is behind many of the dysfunctions and management problems observed in our rivers and coasts during the last decades.

Human action and infrastructure can greatly alter the amount of sediment available in a river course and on the coast, as well as its ability to mobilize such solid cargo. In fact, numerous Spanish rivers and coasts show unequivocal symptoms of important hydrosedimentary imbalances, which appear to be the result of the installation of different types of infrastructure, as well as other human actions at the hydrographic demarcation scale.

Therefore, a good diagnosis of the hydromorphological state of the Spanish channels and coasts implies a good identification of the functioning of river basins and coastal areas. However, given the lack of information on the processes of transport of river sediment in our rivers, the realization of a good diagnosis can be complicated.

Due to the complexity of the study and the measurement of the sedimentary load - river and coastal -, the various agencies and agencies responsible for the management of the river and coastal environment have, in general, insufficient information to be able to evaluate, in detail, the solid load in terms of management. It is necessary, therefore, to diagnose the state of Spanish rivers and coasts in terms of hydro-alimentary continuity and identify the best management and / or recovery strategies, in order to guarantee a long-term use of the river and coastal environment that is sustainable.

In this context, during this day the possibility of creating a “Sediment Observatory” will be considered, which will represent a unique opportunity to generate hydromorphological and quality databases in the Spanish channels and coasts and, above all, for the development and development of diagnostic tools and protocols that allow us to properly characterize the situation of our rivers and coasts.

As a result of the content of the Day, it is intended to facilitate a vision of the integral cycle of sedimentary dynamics in the river and coastal environment, so that as in relation to the ecological flow in the rivers that, to date, this consider as liquid flow, in the near future, both the liquid and the solid are the ones that conform the concept of ecological flow and this taking into account both the river and the sea environment.

PROGRAM

  1. Reception of assistants (8: 00-9: 00)

  2. Inauguration (9: 00-9: 30)

    • José Trigueros Rodrigo (Director of CEDEX)

    • General Director of Water (pending confirmation)

    • General Director of Sustainability of the Coast and the Sea (pending confirmation)

  3. Introductory presentations (9: 30-10: 10)

    • Main challenges in the management of sediments in rivers and coasts in Spain (General Directorate of Water and General Directorate of Sustainability of the Coast and the Sea).

  4. International Presentation (10: 10-11: 10)

    • Reservoir Sedimentation: processes, problems and management strategies (Electricity of France and Sedimentation Working Group of the IAHR).

  5. Coffee & Networking (11: 10-11: 30)

  6. Session 1 (11: 30-13: 30)

    • The incision in the Bernesga River, León: problems and future challenges.

    • Sedimentation problems in the Marmolejo Reservoir. Towards sustainable management.

    • Relations between coastal sediment and river contributions in the Cantabrian.

    • Studies on the management of river sedimentation in the internal basins of Catalonia.

    • Study of the temporary changes of the sediments of the vessel of the La Requejada reservoir. Pisuerga River, Palencia.

    • The role of estuaries as a source / sink for sediments. Implications of climate change on this role.

  7. Lunch (13: 30-14: 30)

  8. Session 2 (14: 30-16: 30)

    • Tools for studies of coastal dynamics and sedimentary management alternatives for the control of coastal erosion and adaptation to climate change.

    • The Rhone River Sediment Observatory.

    • Solid contribution of the Llobregat river. Factors that control it and relationship with the retreat of the delta and the coast.

    • Current state of numerical modeling of solid transport in rivers.

    • Characterization of the morphosedimentary dynamics of the Mediterranean beaches from Sentinel 2 and Landsat 8 images.

    • Sediment management on the Spanish coast. Regulatory constraints and impact on the sedimentary balance.

  9. Round Table (16: 30-17: 30)

  10. Closing (17: 30-17: 45)


For more information, please click here to view the detailed program (in Spanish).

Registration form: https://iahrwater.typeform.com/to/DBW58n

If you want to become an IAHR member, please visit: join.iahr.org

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