How Mars' thin and turbulent atmosphere leads to curiously sized dunes NatureComms
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, orbital and in situ images revealed a third distinct class of larger meter-scale ripples on Mars.
Using an artificial neural network, we characterize the morphometrics of over a million isolated barchan dunes on Mars and analyze how their size and shape vary across Mars’ surface. We find that the size of Mars’ smallest dunes decreases with increasing atmospheric density with a power-law exponent predicted by hydrodynamic theory, similarly to meter-size ripples, tightly bounding a forbidden range in bedform sizes.
Argentina Últimas Noticias, Argentina Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
Sea level extremes and compounding marine heatwaves in coastal Indonesia - Nature CommunicationsIncreased extreme high sea level events and concurrence of marine heatwaves are observed along the Indian Ocean coast of Indonesia in the past decade due to the combined impact of anthropogenic warming and natural decadal climate variability.
Leer más »
Listen to a Martian dust storm engulf the Perseverance rover in eerie, world-first audio recordingAn unprecedented audio recording could reveal key details about extreme weather on the Red Planet.
Leer más »
Audio from a Martian dust devil captured for the first time | EngadgetThe Perseverance rover captured the sound of a Martian dust devil for the first time..
Leer más »
Massive Martian dust devil passed over the Perseverance rover, and it recorded the eerie sounds | CNNA towering whirlwind of dust passed right over the NASA Perseverance rover as it explored the site of an ancient lake on Mars. The rover recorded the first sounds of a Martian dust devil using its microphone.
Leer más »
Scientists can learn a great deal about Martian dust devils only by listening to themDust devils have played crucial roles in Mars rover missions. They could also play a vital role in future human missions.
Leer más »
Perseverance slammed by Martian dust devil - here's what it sounded likeA Martian dust devil slammed into Perseverance and the rover managed to capture audio of this chance encounter.
Leer más »