New satellite study reveals a widespread transition zone in the sky, challenging climate models
A new study published in Advances in Atmospheric Sciences has shed light on a previously overlooked but common atmospheric phenomenon: the transition zone (TZ) where clouds and aerosols blend together, making it difficult to tell where one ends and the other begins. These conditions in the sky are more prevalent than previously thought and could be a key to reducing uncertainty in future climate projections. Clouds and aerosols (tiny suspended particles in the air) are critical players in regulating Earth's temperature, but they remain one of the largest sources of uncertainty in climate models. Traditionally, scientists have classified atmospheric layers as either [...]
Columnar properties in “El Montsec” during dust outbreaks
The sun-sky radiometer Cimel CE-318 located at El Montsec station detected the multiple Saharan dust intrusions during February and March. The Cimel instrument belongs to AERONET network, who automatically processed data (level 1.5). Cimel sun-sky radiometer at the regional background station El Montsec The Angström exponent showed values lower than 0.5 during some days, especially from 20th February to 5th March, indicating the dominance of coarse particles. Some of the episodes were also characterized by high AOD. Variation of AOD and Angstrom exponent during February and March 2021 The strongest outbreak was detected on 5th March, [...]
Saharan dust intrusions along February 2021
In recent weeks several episodes of intrusion of Saharan dust have affected the Iberian Peninsula and other parts of Europe. We show here how these episodes have been detected by different instruments which are routinely measuring in the stations managed by Nubesol-2 researchers. We can observe, in the movie for February 3rd, the Moon trajectory during the nighttime, and the Sun trajectory during the daytime. Both Moon and Sun show reduced aureole, in correspondence with the low aerosol load in the atmosphere for that period. Contrarily, in the movie showing sky evolution along February 6th, and during the daytime period, [...]
A new study published in Advances in Atmospheric Sciences has shed light on a previously overlooked but common atmospheric [...]
The sun-sky radiometer Cimel CE-318 located at El Montsec station detected the multiple Saharan dust intrusions during [...]
In recent weeks several episodes of intrusion of Saharan dust have affected the Iberian Peninsula and other [...]
