Výsledky vyhledávání - "Andreas C.W. Baas"

Cellular automaton modelling of the effects of buildings on aeolian bedform dynamics

Autor: Daan W. Poppema, Andreas C.W. Baas, Suzanne J.M.H. Hulscher, Kathelijne M. Wijnberg

Publikováno v: Aeolian Research, 59
Aeolian research, 59:100840. Elsevier

Buildings affect aeolian sediment transport and bedform development in sandy environments. Cellular automaton (CA) models have, however, only been used to simulate natural bedform dynamics. This study extends a well-known aeolian CA model to include

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c543725e96e4ae766560128673756d78
http://www.scopus.com/inward/record.url?scp=85142133034&partnerID=8YFLogxK

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Internal sedimentary structure of linear dunes modelled with a cellular automaton

Autor: Yukun Liu, Andreas C.W. Baas

Publikováno v: Liu, Y & Baas, A C W 2020, ' Internal sedimentary structure of linear dunes modelled with a cellular automaton ', SEDIMENTOLOGY, vol. 67, no. 7, pp. 3718-3734 . https://doi.org/10.1111/sed.12767

Linear dunes are the most common type of dune found on Earth and exist on several extra-terrestrial bodies, but despite this abundance their internal stratigraphy has not been commonly agreed. A cellular automaton is deployed to simulate the developm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::820c3219320a66fa796b593a41d84f39
https://doi.org/10.1111/sed.12767

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Reproducing size distributions of swarms of barchan dunes on Mars and Earth using a mean-field model

Autor: Dominic T. Robson, Alessia Annibale, Andreas C.W. Baas

Publikováno v: King's College London
Robson, D T, Annibale, A & Baas, A C W 2022, ' Reproducing size distributions of swarms of barchan dunes on Mars and Earth using a mean-field model ', PHYSICA A .

We apply a mean-field model of interactions between migrating barchan dunes, the CAFE model, which includes spontaneous calving, aggregation, fragmentation, and mass-exchange, yielding a steady-state size distribution that can be resolved for differe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e52d5c9ff7e28fa68b24ae0479ad6571
http://arxiv.org/abs/2110.15850

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Inference of barchan interaction properties from a comparison of theoretical modelling and observation

Autor: Alessia Annibale, Andreas C.W. Baas, Dominic T Robson

It is well known that barchan dunes are not isolated bedforms but are able to interact with one another both directly, through collisions and the emission/absorption of flux, and indirectly, due to the effects of turbulence in the wake of a dune. In

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71b96cf5c54c23514039786dfc59b033
https://doi.org/10.5194/egusphere-egu21-213

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Using wind run to predict sand drift

Autor: Irene Delgado-Fernandez, Kevin Lynch, Andreas C.W. Baas, Derek Jackson, J. Andrew G. Cooper

Publikováno v: Baas, A C W, Jackson, D D W, Delgado-Fernandez, I, Lynch, K & Cooper, J A G 2020, ' Using wind run to predict sand drift ', EARTH SURFACE PROCESSES AND LANDFORMS, vol. 45, no. 8, pp. 1817-1827 . https://doi.org/10.1002/esp.4848

Conventional aeolian sand transport models relate mass transport rate to wind speed or shear velocity, usually expressed and empirically tested on a 1-s time scale. Projections of total sand delivery over long time scales based on these models are hi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09dfd99f3e3efe7c20d727e8ecfdc2ac
https://kclpure.kcl.ac.uk/ws/files/125622893/Using_wind_run_to_BAAS_Accepted14Feb2020_ePublished4Mar2020_GREEN_AAM.pdf

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Large-Scale Particle Image Velocimetry (LSPIV) of aeolian sand transport patterns

Autor: Fabien van den Berg, Andreas C.W. Baas

Publikováno v: Baas, A C W & van den Berg, F 2018, ' Large-Scale Particle Image Velocimetry (LSPIV) of aeolian sand transport patterns ', Aeolian research, vol. 34, pp. 1-17 . https://doi.org/10.1016/j.aeolia.2018.07.001

This paper presents results of laboratory testing and proof-of-concept field deployment of large-scale particle image velocimetry (LSPIV) using a consumer-level digital video camera to measure advection velocities of streamers and sand transport patt

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99a707bcf6ae1272363c1575888406ae
https://doi.org/10.1016/j.aeolia.2018.07.001

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Transformation of parabolic dunes into mobile barchans triggered by environmental change and anthropogenic disturbance

Autor: Andreas C.W. Baas, Na Yan

Publikováno v: Earth Surface Processes and Landforms. 43:1001-1018

Parabolic dunes are widely distributed on coasts and margins of deserts and steppes where ecosystems are vulnerable and sensitive to environmental changes and human disturbances. Some studies have indicated that vegetated parabolic dunes can be activ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a7908b801f971a8347ee1cad1adcdba7
https://doi.org/10.1002/esp.4299

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Environmental controls, morphodynamic processes, and ecogeomorphic interactions of barchan to parabolic dune transformations

Autor: Andreas C.W. Baas, Na Yan

Publikováno v: Yan, N & Baas, A C W 2017, ' Environmental controls, morphodynamic processes, and ecogeomorphic interactions of barchan to parabolic dune transformations ', Geomorphology, vol. 278, pp. 209–237 . https://doi.org/10.1016/j.geomorph.2016.10.033

The transformation of barchans into parabolic dunes has been observed in various dune systems around the world. Precise details of how environmental controls influence the dune transformation and stabilisation mechanism, however, remain poorly unders

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c95fc27e2085b04d28a73c9cd737858
https://doi.org/10.1016/j.geomorph.2016.10.033

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Low-cost electronic sensors for environmental research: pitfalls and opportunities

Autor: Emma Tebbs, Bruce Main, Kristofer Chan, Joseph Thompson, Reagan Pearce, Michael A. Chadwick, Francis T. O'Shea, Thomas E. L. Smith, Daniel Schillereff, Mark Mulligan, Arnout van Soesbergen, Andreas C.W. Baas

Repeat observations underpin our understanding of environmental processes, but financial constraints often limit scientists’ ability to deploy dense networks of conventional commercial instrumentation. Rapid growth in the Internet-Of-Things (IoT) a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1232e06427b5a4cc7ddfceccac31983a
https://doi.org/10.31223/osf.io/t7xrn

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Variable and conflicting shear stress estimates inside a boundary layer with sediment transport

Autor: Andreas C.W. Baas, Zoe Lee

Publikováno v: Earth Surface Processes and Landforms. 41:435-445

This paper presents a comparison between two methods for estimating shear stress in an atmospheric internal boundary layer over a beach surface under optimum conditions, using wind velocities measured synchronously at 13 heights over a 1.7 m vertical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d621dd24abf4f6156a93778ad69a7221
https://doi.org/10.1002/esp.3829

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