In our center, the Lidar technique is used since 2011 to study the optical properties of aerosols. In this area, Cristofer Jiménez got the highest mark for his master’s thesis, getting to be the first member of CEFOP who combined his undergraduate and graduate studies about atmospheric optics.
Under Dr. Elena Montilla guide, Cristofer was part of a team that started the measurements in our Lidar Observatory Center, period which for him ended Friday August 22, with the defense of his thesis of Master of Science with a major in Physics.
In his work, “Determination of moisture effect in atmospheric aerosol scattering”, he delved into the development of an algorithm to process the data obtained with backscattering and backscattering Lidar and profiling dry backscattering, using both a model mesoscale weather to simulate global variables.
“Aerosols have a property called hygroscopicity, which is the ability to capture steam from the environment. It is through this property that the effect of moisture on the spread is determined”, he said.
For purposes of extending the study of atmospheric aerosols at the CEFOP Lidar Observatory, the young researcher also developed the theoretical basis for a polychromator design, capable of measuring more wavelengths. “The equipment we have allows us to obtain vertical information of backscattered radiation, but we have no information of the water vapor, and this development would aim to increase the accuracy of the algorithm I developed and get new data”, Cristofer explained.
Dr.. Montilla was Cristofer’s mentor in the Lidar technique study, and she appreciated very much the contributions made by his student, who will travel to Germany and study a PhD career with a scholarship fund from CONICYT. “Working on Atmospheric Optics demands a high sacrifice, so I’m very pleased with Cristofer’s contributions. It is also gratifying that CEFOP bet on absolutely open and guide this new line of work”, she said.