Monday 25 June 2018

8:00 am - 9:00 am : Opening

Distribution of the badges and packages

9:00 am - 9:15 am : Welcome

Welcome to the participants

9:15 am - 12:00 pm : Session Paleoenvironements

Conveners: Joel Roskin (University of Haifa, Israel), Abi Stone (University of Manchester, UK)

Aeolian sediments, such as loess and dunes, are valuable records of Late Quaternary paleoclimates, containing information about wind direction and strength, and also insights into variations in paleoenvironmental conditions also relating to moisture availability. Analytical and methodological advances continue to extend the utility of these archives. There are also complications in their geomorphic and paleoclimatic interpretation, relating to discontinuous accumulation (and periods of sediment removal), spatial variability in accumulation and post-depositional processes, which require careful consideration.

This session aims to combine contributions that consider a broad scope of aeolian records such as accumulative dune types, loess sequences, and marine and lacustrine (dust) records. We also invite contributions that consider aeolian-fluvial and biogeomorphic interactions given the importance of connectivity between landscape components and how these interactions modify landscape responses to climatic forcing. Contributions are especially welcome from studies that apply new approaches for: (i) obtaining representative chronologies, e.g. portable luminescence readers, high resolution dating, (ii) producing accurate paleoclimatic interpretations, e.g. biomarkers, and sand stratigraphy, along with studies that highlight interactions between different processes, and relate to feedback mechanisms and controls on sediment preservation, and (iii) offering insights into the paleoenvironmental record from modern-day empirical aeolian studies.

Solicited speaker: Eduardo Garzanti (University of Milano-Bicocca, Italy)

10:30 am - 10:45 am : Group Photo

The group photo will be taken during the coffee break.

12:00 pm - 5:40 pm : Session Aerodynamics and sediment transport

Conveners: Cheryl McKenna-Neuman (Trent University, Canada), Hezi Yizhaq (Ben-Gurion University of the Negev, Israel)                            

Sediment movement by the wind is associated with a wide range of interesting geological phenomena, from desertification to dust proliferation and, ultimately, soil and rock formation and stratification. Interactions between the airflow over initially planar surfaces of varied texture, and sediment transport by saltation, reptation and suspension, are inherently nonlinear and complex. Such processes may rapidly lead to self-organization of the bed at various scales, resulting in particle-scale segregation, the formation of stratigraphic structures, and bedform development. While empirical field and wind tunnel studies have remained a mainstay of research on aeolian transport processes for over seventy years, increasingly sophisticated analytical and numerical models (e.g. CFD – Computational Fluid Dynamics) have contributed significantly over the last several decades to our understanding of the flow structure over various topographic features and the morphodynamic response. There remain, however, many fundamental and largely unanswered questions in regard to the physical basis of aeolian transport systems; as for example, the effects of turbulence at different spatio-temporal scales, wind intermittency, and the three-dimensionality of the airflow and particle splash. Little is still known about the response of the wind profile to the partitioning of the total fluid drag between the airborne particles within the saltation cloud and fixed roughness elements that project into and perturb the flow. This session is devoted to both theoretical and experimental studies (field and wind tunnel) that advance our knowledge of the interaction between the boundary-layer flow and sediment transport.

 Solicited speaker: Jasper Kok (Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, USA)

1:30 pm - 3:00 pm : Monday Poster Session

The posters corresponding to the oral sessions of Monday and Tuesday will be displayed during the two days :

- Paleoenvironments

- Aerodynamics and sediment transport

- Anthropogenic interactions

- Dust dynamics and processes: emission, dispersal, and deposition

- Interaction with vegetation

5:40 pm - 6:55 pm : Session Anthropogenic Interactions

Conveners: John Leys (New South Wales Office of Environment and Heritage, Australia), Geert Sterk (Utrecht University, the Netherlands)                            

The FAO in 2011 reported that the world population will increase from 6.9 billion people today to 9.1 billion in 2050. People interact with and manage land. Land management activities can increase or decrease wind erosion depending on the land management practice used. This session will present the latest research on the impact land management has on Aeolian landscapes.

Papers are invited that report on:

• Trends in wind erosion and dust emission under different land uses
• Policies and strategies used to control wind erosion and dust emission
• Evaluation of the effectiveness of land management and wind erosion control practices.

Solicited speaker: Brenton Sharratt (United States Department of Agriculture, Agricultural Research Service, USA)

Tuesday 26 June 2018

9:00 am - 9:45 am : Invited talk

Modeling mineral dust interactions with the earth system: progress, challenges and prospects.

P. Ginoux, GFDL, Princeton University, USA.

9:45 am - 4:30 pm : Session Dust dynamics and processes: emission, dispersal, and deposition

Conveners: Martina Klose (Barcelona Supercomputing Center, Spain), Jan-Berend Stuut (Center for Marine Environmental Sciences, the Netherlands)                            

In this session we would like to highlight and discuss mineral dust from source to sink, starting with emission in the source area, processes that interact with dust particles during dispersal and finally deposition of dust on land and ocean.

We welcome contributions dealing with, for example:

• Mobilisation of dust from the various dust sources, including the emission process and the spatio-temporal dynamics of emission;
• Interaction of dust  with atmospheric processes during transport, including dust-particle modifications;  and
• Deposition of dust, including effects on land and ocean, as well as consequences for dust archives.

Keywords: mobilisation, emission, dispersal, transport, processing, deposition

Solicited speaker: Maarten Prins (Vrije Universiteit Amsterdam, The Netherlands)

1:30 pm - 3:00 pm : Tuesday Poster Session

The posters corresponding to the oral sessions of Monday and Tuesday will be displayed during the two days :

- Paleoenvironments

- Aerodynamics and sediment transport

- Anthropogenic interactions

- Dust dynamics and processes: emission, dispersal, and deposition

- Interaction with vegetation

3:00 pm - 3:30 pm : Distinguished Career Award

 A random walk to the Bodélé Depression: How I became a global dust collector.

Prospero J., RSMAS, Miami, USA

4:45 pm - 6:20 pm : Session Interactions with vegetation

Conveners: Jack Gillies (Desert Research Institute, USA), Greg Okin (University of California, USA)                            

This session will address questions about the interaction of aeolian processes (wind and sediment transport) with vegetation or vegetation analogs (and other biotic elements, like biological soil crusts). Topics include, but are not limited to: vegetation's role in atmospheric boundary-layer processes, vegetation's impact on aeolian transport, the impact of windborne sediment on vegetation, modeling vegetation-wind-sediment interactions.  Theoretical, observational, and modeling papers will be welcomed in this session.

Solicited speaker: Caroline Pierre (CNRS, Institute of ecology and environmental sciences of Paris, France)

6:20 pm - 7:20 pm : ISAR General Assembly

Wednesday 27 June 2018

8:30 am - 7:00 pm : Field trip - Dune du Pilat

8h30: Departure by bus from Talence/Bordeaux

10h00: Arrival at the Dune du Pilat

14h30: Departure to the "Chateau Pape Clément"

15h00: Visit and wine testing at "Chateau Pape Clément"

19h00: Back to Talence/Bordeaux

Thursday 28 June 2018

9:00 am - 9:45 am : Invited talk

A physical perspective on aeolian (and non-aeolian) dunes.

Andreotti B.,ESPCI ParisTech, Paris, France

9:45 am - 4:10 pm : Session Dunes and Bedforms

Conveners: Mat Baddock (Loughborough University, UK), Ryan Ewing (Texas A&M University, USA), Lv Ping (Cold and Arid Regions Environmental and Engineering Research Institute, China)                            

We welcome contributions to this session related to the morphology and dynamics of wind-blown sand dunes and other bedforms. Contributions could include, but are not limited to, the morphodynamics of aeolian bedform development, and controls on bedform shape, wavelength and orientation. Techniques for this session could include, but are not limited to, laboratory and field experiments, numerical simulations, and remote sensing.

Keywords: sand dunes, morphodynamics, ripples, patterns, dune formation

Solicited speaker: Dave Rubin (University of California Santa Cruz, USA)

1:30 pm - 3:00 pm : Thursday Poster Session

The posters corresponding to the oral sessions of Thursday and Friday will be displayed during the two days :

- Dunes and bedforms

- Planetary aeolian research

- Coastal environments

- Modelling and numerical simulations

- Experiments and instrumentation

3:00 pm - 3:30 pm : Distinguished Career Award

Quaternary dune systems – ergs and sand seas revisited

Nicholas Lancaster, Desert Research Institute, Reno, Nevada, USA

4:10 pm - 6:40 pm : Session Planetary aeolian research

Conveners: Jani Radebaugh (Brigham Young University, USA), Simone Silvestro (INAF Osservatorio Astronomico di Capodimonte, Italy)                            

Dunes and aeolian landforms have been observed on all solid bodies with atmospheres, even tenuous ones. We will discuss the morphology, mobility of bedforms and physics of aeolian transport that occurs on various bodies in the solar system, in light of what we understand about those concepts on Earth.

 Solicited speaker: Robert Sullivan (Cornell Center for Astrophysics and Planetary Sciences, Cornell University, Ithaca, NY, USA)

8:00 pm - 11:30 pm : Conference Diner

Conference Diner at the Café Maritime, Bordeaux.

Friday 29 June 2018

9:00 am - 12:10 pm : Session Coastal environments

Conveners: Patrick Hesp (Flinders University, Australia), Derek Jackson (Ulster University, UK)                            

Aeolian processes in coastal environments represent a crucial part of the beach-dune interplay along dune-fringed coastlines. Added environmental complexities in such locations present significant challenges in understanding their short to long-term dynamics and landform evolution. Recent technological and modelling developments now enable greater insights into coastal aeolian environments and this session seeks to highlight these advances as well as reporting on findings from various coastal examples worldwide where aeolian processes are at play. Contributions are sought on various aspects of coastal aeolian processes and landforms including initiation, geomorphology, dynamics, dune evolution, CFD airflow modelling and sediment transport.

Solicited speakers: Irene Delgado-Fernandez (Edgehill University, UK) and Luis Francisco Hernández Calvento (Universidade de Las Palmas de Gran Canaria, Spain)

1:05 pm - 2:35 pm : Friday Poster Session

The posters corresponding to the oral sessions of Thursday and Friday will be displayed during the two days :

- Dunes and bedforms

- Planetary aeolian research

- Coastal environments

- Modelling and numerical simulations

- Experiments and instrumentation

2:35 pm - 4:00 pm : Session Modelling and numerical simulations

Conveners: Joanna Nield (University of Southampton, UK), Alexandre Valance (Institut de Physique de Rennes, France)                            

This session welcomes contributions that focus on the modelling of aeolian systems. Models focusing on large scale dune and dune field dynamics have increased in range and scale over recent years with new work including reduced complexity, hybrid models, CFD and more. This session aims to bring together researchers using different types of models to address key landscape development and change questions. At a smaller spatial and temporal scale, novel methods to model saltation and aeolian transport are evolving and this session also encourages submissions on numerical simulation of small-scale processes.

Keywords: modelling, dune field dynamics, saltation, ripples, CFD, reduced complexity, transport

Modelling and numerical simulations

4:00 pm - 6:40 pm : Session Experiments and instrumentation

Conveners: Michel Louge (Cornell University, USA), Giles Wiggs (University of Oxford, UK)                            

At the spatial and temporal scales of natural bedforms and processes, field work and laboratory experiments yield crucial data toward discovering all aspects of aeolian research considered at ICAR 2018. For this session, we seek contributions reporting results from novel experiments and instrumentation deployed in the field or employed at the laboratory scale.

Keywords: instrumentation, laboratory experiments, field work

Solicited speaker: Jean-Philippe Avouac (California Institute of Technology, USA)

6:40 pm - 6:50 pm : Student Awards

Awards for the best oral and poster presentation by students will be attributed.

6:50 pm - 7:00 pm : Closure

End of the Conference