Dr Yajuan Li
- Position: Visiting Researcher
- Areas of expertise: lidar observations; atmospheric temperature measurements; data processing and analysis
- Email: Y.Li4@leeds.ac.uk
- Location: 10.126 School of Earth and Environment
I have been an academic visitor within the School of Earth and Environment at the University of Leeds since October 2018.
I obtained my PhD degree from Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, where I studied atmospheric remote sensing. Following that, I was a lecturer at the Nanjing Xiaozhuang University in Nanjing, China.
My current research interests focuses on the investigations of the dynamical and chemistry processes controlling the ozone valley over the Tibetan Plateau (OVTP), by using satellite measurements (TOMS, MLS etc), ECMWF reanalysis dataset and vertical temperature/ wind or ozone profiles from different lidar systems over Tibet. I will do this within the framework of the Leeds chemical transport model TOMCAT/SLIMCAT. This will extend people’s knowledge of low ozone over Tibet and if possible, to improve the present running model.
Tibetan Plateau is well known as the third pole of the earth. Due to the special geographical position and special thermo-dynamic effects, it plays a vital role in the transport processes of atmospheric components and energy, and has a large impact on climate. Model and satellite data has shown that there is persistent low ozone over Tibetan Plateau every year. This is termed an ‘ozone valley’ by Chinese scientists since 1995 but its cause is still unclear.
My research area is mainly about the dynamical processes in the middle and lower atmosphere by using Lidar measurements. With very high temporal and vertical resolution observations of winds and temperatures based on Na/ Rayleigh/ Raman Temperature & Wind Lidar measurements over Tibet and other places in China through several Chinese-funded Projects (i.e., APSOS -Atmospheric Profiling Synthetic Observation System project and Chinese Meridional Project funded by the National natural Science Foundation of China), unique ground-truth measurements will help to validate the performance of the state-of-the-art Leeds chemical transport model TOMCAT/SLIMCAT over the Tibetan Plateau (TP).
Research groups and institutes
- Institute for Climate and Atmospheric Science
- Atmospheric Chemistry and Aerosols