Tag

Wind Patterns

All articles tagged with #wind patterns

science1 year ago

Bay of Bengal Currents Challenge Century-Old Ocean Theory

A study by scientists from NOAA and other institutions has identified an exception to Ekman's theory of wind-driven ocean currents in the Bay of Bengal, where currents deflect to the left of surface winds, contrary to the theory's predictions for the Northern Hemisphere. This finding, based on multi-year buoy data, suggests potential revisions to climate models and highlights the need for further research on wind impacts on ocean currents. The study could also support the development of a NASA satellite system to monitor wind and ocean surface currents.

science1 year ago

Unveiling the Secrets of Earth's Moving Star Dunes

Scientists have long been puzzled by the absence of giant star-shaped sand dunes in geological records despite their prevalence in modern deserts and even on extraterrestrial bodies. A new study analyzing the Lala Lallia star dune in Morocco has shed light on their formation and movement, providing a model for identifying these features in sedimentary rock. The research, published in Scientific Reports, suggests that the use of ground penetrating radar and mineral dating techniques can help uncover the secrets of these natural wonders and locate them in the geological record.

space2 years ago

Unveiling Martian Wind Patterns through Sand Dunes

Machine learning has been used to analyze the morphology of barchan dunes on Mars, revealing the planet's atmospheric wind patterns. The study found that localized topography, such as impact craters, can deflect winds and influence dune formation. The research identified distinct patterns in dune migration related to summer atmospheric circulation, with northward-directed winds at mid-latitudes and cyclonic circulation near the north pole. At latitudes above 45°N, dune migration patterns are easterly, matching the cyclonic polar vortex circulation. The study provides valuable insights for understanding Mars' meteorological activities and supporting future manned missions to the planet.