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Atmosphericscience

All articles tagged with #atmosphericscience

science-and-environment2 years ago

"Unlocking Climate Secrets: A 66-Million-Year Journey Through CO2 History"

An international team of scientists, including University of Utah geologists, has published a study in Science reconstructing Earth's atmospheric CO2 levels over the past 66 million years. Using various geological proxies, they found that current CO2 levels of 419 ppm are the highest in 14 million years, largely due to the burning of fossil fuels. The research aims to provide a detailed record of past CO2 concentrations to better predict future climate scenarios and understand the impact on Earth's history and ecosystems.

via SciTechDaily|
##atmosphericscience#climatechange
science-and-technology2 years ago

"Hubble Tracks Transformations in Exoplanet Atmosphere Across Three Years"

NASA's Hubble Space Telescope has provided astronomers with a unique data set by observing the exoplanet WASP-121 b, also known as Tylos, over the years 2016, 2018, and 2019. These observations revealed that the exoplanet's atmosphere changes over time, with evidence of dynamic weather patterns such as massive cyclones. The close proximity of WASP-121 b to its host star results in extreme temperatures and phenomena like iron rain on the night side. The study, which combines observational data with computational modeling, marks a significant step in understanding weather on exoplanets and could aid in the search for habitable worlds.

via Phys.org|
##astronomy#atmosphericscience
science-and-technology2 years ago

"New Instrument Gauges Jupiter's Fierce Winds in Exoplanet Research Trial"

Researchers using the ESPRESSO spectrograph on the ESO's Very Large Telescope have successfully measured Jupiter's wind speeds by analyzing the Doppler shift in sunlight reflected by the planet's clouds. This technique, typically used for hunting exoplanets, revealed wind speeds ranging from 37 to 266 mph on Jupiter. The findings enhance our understanding of Jupiter's atmospheric dynamics and could be applied to study other gas giants like Saturn.

via Space.com|
##astronomy#atmosphericscience