Search Results - "Lapotre, Mathieu G. A"

Glacial Isostatic Adjustment Modulates Lateral Migration Rate and Morphology of the Red River (North Dakota, USA and Manitoba, Canada) by Kodama, Samuel T., Pico, Tamara, Finnegan, Noah J., Lapôtre, Mathieu G. A., Willenbring, Jane K.

“…The lateral migration of a river meander is driven by erosion on the outer bank and deposition on the inner bank, both of which are affected by shear stress…”
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Automatic Detection and Segmentation of Barchan Dunes on Mars and Earth Using a Convolutional Neural Network by Rubanenko, Lior, Perez-Lopez, Sebastian, Schull, Joseph, Lapotre, Mathieu G. A.

“…The morphology of isolated barchan dunes on Mars and Earth may shed light on the dynamic conditions that form them, their migration direction and the physical…”
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A distinct ripple-formation regime on Mars revealed by the morphometrics of barchan dunes by Rubanenko, Lior, Lapôtre, Mathieu G. A., Ewing, Ryan C., Fenton, Lori K., Gunn, Andrew

“…Sand mobilized by wind forms decimeter-scale impact ripples and decameter-scale or larger dunes on Earth and Mars. In addition to those two bedform scales,…”
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Vegetation enhances curvature-driven dynamics in meandering rivers by Finotello, Alvise, Ielpi, Alessandro, Lapôtre, Mathieu G. A., Lazarus, Eli D., Ghinassi, Massimiliano, Carniello, Luca, Favaro, Serena, Tognin, Davide, D’Alpaos, Andrea

“…Stabilization of riverbanks by vegetation has long been considered necessary to sustain single-thread meandering rivers. However, observation of active…”
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Direct Measurements of Dust Settling Velocity Under Low‐Density Atmospheres Using Time‐Resolved Particle Image Velocimetry by Alvarez, Carlos A., Gunn, Andrew, Swann, Christy, Trimble, Sarah M., Ewing, Ryan C., Lapôtre, Mathieu G. A.

“…Dust dynamics influence planetary atmospheres. However, the settling velocity of dust—and thus its residence time in the atmosphere—is often mispredicted…”
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Mars as a time machine to Precambrian Earth by Lapotre, Mathieu G. A, Bishop, Janice L, Ielpi, Alessandro, Lowe, Donald R, Siebach, Kirsten L, Sleep, Norman H, Tikoo, Sonia M

“…As Mars transitioned from an early Earth-like state to the cold desert planet it is today, it preserved a near pristine record of surface environments in a…”
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A tenfold slowdown in river meander migration driven by plant life by Ielpi, Alessandro, Lapôtre, Mathieu G. A.

“…Meandering rivers are diagnostic landforms of hydrologically active planets, and their migration regulates the continental component of biogeochemical cycles…”
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Model for the Formation of Single‐Thread Rivers in Barren Landscapes and Implications for Pre‐Silurian and Martian Fluvial Deposits by Lapôtre, Mathieu G. A., Ielpi, Alessandro, Lamb, Michael P., Williams, Rebecca M. E., Knoll, Andrew H.

“…Flume experiments and field observations show that bank vegetation promotes the formation of narrow and deep single‐thread channels by strengthening…”
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Canyon formation constraints on the discharge of catastrophic outburst floods of Earth and Mars by Lapotre, Mathieu G. A., Lamb, Michael P., Williams, Rebecca M. E.

“…Catastrophic outburst floods carved amphitheater‐headed canyons on Earth and Mars, and the steep headwalls of these canyons suggest that some formed by…”
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Linking sediment flux to river migration in arid landscapes through mass balance by Ielpi, Alessandro, Lapôtre, Mathieu G. A

“…Lateral migration is a key process shaping sinuous rivers and controlling sediment exchange with floodplains. The rate at which channels migrate is affected by…”
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Automatic Characterization of Boulders on Planetary Surfaces From High‐Resolution Satellite Images by Prieur, Nils C., Amaro, Brian, Gonzalez, Emiliano, Kerner, Hannah, Medvedev, Sergei, Rubanenko, Lior, Werner, Stephanie C., Xiao, Zhiyong, Zastrozhnov, Dmitry, Lapôtre, Mathieu G. A.

“…Boulders form from a variety of geological processes, which their size, shape, and orientation may help us better understand. Furthermore, they represent…”
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Sand Grain Sizes and Shapes in Eolian Bedforms at Gale Crater, Mars by Weitz, Catherine M., Sullivan, Robert J., Lapotre, Mathieu G. A., Rowland, Scott K., Grant, John A., Baker, Mariah, Yingst, R. Aileen

“…We measured sand sizes and shapes on diverse eolian bedforms in Gale crater to help constrain models of eolian sediment transport on Mars. All grains are…”
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Large sinuous rivers are slowing down in a warming Arctic by Ielpi, Alessandro, Lapôtre, Mathieu G. A., Finotello, Alvise, Roy-Léveillée, Pascale

“…Arctic regions are disproportionately affected by atmospheric warming, with cascading effects on multiple surface processes. Atmospheric warming is…”
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Hydraulics of floods upstream of horseshoe canyons and waterfalls by Lapotre, Mathieu G. A., Lamb, Michael P.

“…Horseshoe waterfalls are ubiquitous in natural streams, bedrock canyons, and engineering structures. Nevertheless, water flow patterns upstream of horseshoe…”
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The Bagnold Dunes in Southern Summer: Active Sediment Transport on Mars Observed by the Curiosity Rover by Baker, Mariah M., Lapotre, Mathieu G. A., Minitti, Michelle E., Newman, Claire E., Sullivan, Robert, Weitz, Catherine M., Rubin, David M., Vasavada, Ashwin R., Bridges, Nathan T., Lewis, Kevin W.

“…Orbiter‐based observations have demonstrated that active aeolian environments are ubiquitous across Mars. Here we examine one such environment, the Bagnold…”
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The Role of Seasonal Sediment Transport and Sintering in Shaping Titan's Landscapes: A Hypothesis by Lapôtre, Mathieu G. A., Malaska, Michael J., Cable, Morgan L.

“…Titan is a sedimentary world, with lakes, rivers, canyons, fans, dissected plateaux, and sand dunes. Sediments on Saturn's moon are thought to largely consist…”
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A depositional model for meandering rivers without land plants by Hasson, Michael, Marvin, M. Colin, Gunn, Andrew, Ielpi, Alessandro, Lapôtre, Mathieu G. A.

“…The recognition of meandering rivers in Earth's prevegetation stratigraphic record is hindered by an absence of depositional models specifically tailored to…”
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Biotic forcing militates against river meandering in the modern Bonneville Basin of Utah by Ielpi, Alessandro, Lapôtre, Mathieu G. A., Veiga, Gonzalo

“…Biotic forcing on river meandering is a highly debated topic in sedimentology. Vegetation is assumed to hold a vital role on channel stability and sinuosity,…”
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The Pace of Fluvial Meanders on Mars and Implications for the Western Delta Deposits of Jezero Crater by Lapôtre, Mathieu G. A., Ielpi, Alessandro

“…Although there is little doubt that rivers once flowed on Mars' surface, how sustained and frequent their flows were remains enigmatic. Understanding the…”
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Ancient Martian aeolian processes and palaeomorphology reconstructed from the Stimson formation on the lower slope of Aeolis Mons, Gale crater, Mars by Banham, Steven G., Gupta, Sanjeev, Rubin, David M., Watkins, Jessica A., Sumner, Dawn Y., Edgett, Kenneth S., Grotzinger, John P., Lewis, Kevin W., Edgar, Lauren A., Stack‐Morgan, Kathryn M., Barnes, Robert, Bell, James F., Day, Mackenzie D., Ewing, Ryan C., Lapotre, Mathieu G.A., Stein, Nathan T., Rivera‐Hernandez, Frances, Vasavada, Ashwin R.

“…Reconstruction of the palaeoenvironmental context of Martian sedimentary rocks is central to studies of ancient Martian habitability and regional palaeoclimate…”
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