Per la serie di seminari in meteorologia ambientale dell’Università di Trento, venerdì 15 dicembre alle ore 11:30, Daniel Cziczo, direttore del Department of Earth, Atmospheric, and Planetary Sciences della Purdue University terrà un seminario dal titolo: New insights on upper tropospheric and stratospheric aerosols from single particle measurements.

Il seminario si terrà in presenza nell’aula 1P (primo piano) al DICAM – Università di Trento, in via Masiano 77, e sarà possibile seguirlo in streaming su Zoom al seguente link:

https://unitn.zoom.us/j/85650715877
(Meeting ID: 856 5071 5877, Passcode: 985207)

Si riporta l’abstract del seminario e la biografia del prof. Cziczo.

Abstract
The composition of particles found in the upper tropospheric / lower
stratospheric (UTLS) has now been studied in situ and in real time for a
quarter century. First deployed in 1998, the Particle Analysis by Laser
Mass Spectrometry (PALMS) instrument showed the complex internal and
external mixing state of aerosols in this region of the atmosphere.
Developed in 2020, the updated PALMS-Next Generation (-NG) instrument
was deployed in 2021 and 2022 on the NASA ER-2 aircraft for the Dynamics
and Chemistry of the Summer Stratosphere (DCOTSS) study. DCOTSS
specifically targeted summer convection and stratospheric overshooting
over continental North America while also allowing a general survey of
this region of the atmosphere. The expanded capabilities of PALMS-NG
allowed us to better understand the sources and mixing state of UTLS
particles with an emphasis on the understudied regions impacted by deep
convection. Among our findings are the transport of particles across the
tropopause and their interaction with material already in the lower
stratosphere.

Bio
Daniel Cziczo is professor and head of the Department of Earth,
Atmospheric, and Planetary Sciences at Purdue University. He is a
leading expert on the relationship between different types of
atmospheric particles and the clouds they form –and the subsequent
impact on climate. He has received numerous awards, and was named a 2023
Karlsruhe Institute of Technology (KIT) International Excellence Fellow.
His research utilizes laboratory and field studies to determine how
atmospheric particles interact with water vapor droplets and ice
crystals which are important players in the Earth’s climate system.
His extensive field work includes working with NASA’s Dynamic and
Chemistry of the Summer Stratosphere (DCOTSS), and atmospheric research
with the National Oceanic and Atmospheric Administration (NOAA).