NASA的MAVEN探测器观测到的碳通量与模型相符,比氧离子低1到2个数量级。
everything atmospheric
¿Cuánto tiempo permanecen las partículas de carbono negro en la atmósfera?
Investigadores descubren cómo el carbono negro evoluciona de partículas hidrofóbicas a sitios de nucleación de nubes, removiendo eventualmente las partículas que absorben calor del cielo.
Pollution Is Disrupting Rain Cycles in the Amazon
A team of researchers in Brazil and the United States uncovered the importance of the mechanism of oxidation—a process with the potential to affect climate and precipitation across the tropics.
Iodine-Laden Desert Dust Is Eating at Ozone Pollution
In a happy accident, scientists found a potential solution to an atmospheric chemistry mystery. Their findings could be a missing piece in the iodine cycle and in atmospheric models.
How Do Marine Gases Affect Cloud Formation?
By using novel aircraft measurements over the eastern North Atlantic Ocean, researchers shed light on the relationship between common marine biogenic gases and the microphysical properties of clouds.
Searching for Earthquakes in the Ionosphere
Earthquakes may release bursts of electrical energy that can be felt in the ionosphere, kilometers above Earth. The theory remains controversial, though.
Measuring Carbon Ion Loss from the Martian Atmosphere
The flux, observed with NASA’s MAVEN spacecraft, is in line with models and 1–2 orders of magnitude lower than that of oxygen ions.
Deforestation Is Flooding West African Coasts
The lack of trees is contributing to increased rainfall along the coast of southwest Africa, where communities are already vulnerable to flash flooding.
Rethinking the Search for the Origins of Life
Early Earth conditions and the chemistry that led to life were inextricably interwoven. Earth scientists and prebiotic chemists are working together in new ways to understand how life first emerged.
El sorprendente alcance de las gigantescas ondas atmosféricas de Tonga
Los resultados empiezan a llegar: Científicos de alrededor del mundo explican las gigantescas ondas atmosféricas que emanaron de la erupción del volcán Hunga Tonga-Hunga Ha’apai.