Abstract
The knowledge on the abundance and diversity of the minute particles or aerosols in the earth's stratosphere is still in its infancy as aerosol sampling at high-altitude still possess a lot of challenges. Thus far, high-altitude aerosol sampling has been conducted mostly using manned flights, which requires enormous financial and logistical resources. There had been researches for the utilisation of high altitude balloon (HAB) for active and passive aerosol samplings within the stratosphere. However, the gathered samples in the payload were either brought down by controlling the balloon air pressure or were just dropped with a parachute to slow the descend speed in order to reduce the impact upon landing. In most cases, the drop location of the sample are unfavorable such as in the middle of the sea, dense foliage, etc. Hence a system that can actively sample aerosols at high-altitude and improve the delivery method in terms of quality and reliability using unmanned aerial vehicle (UAV) is designed and tested in this study.
Highlights
Aerosol particles are found on the earth’s surface and are transported both vertically and horizontally in the atmosphere [1]
It is shown that automatic control works properly and the glider that carried the sample was retrieved safely at the desired landing coordinate autonomously
The system was able to collect aerosol particles (as in Figure 13 and 14 were Nitrogen (N) and Potassium (K) gas particles collected at different altitudes)
Summary
Aerosol particles are found on the earth’s surface and are transported both vertically and horizontally in the atmosphere [1]. Aerosol particles appear in almost any shape or size, and can either be solid particles or liquid droplets. These particles can be defined as fine and coarse particles, which are smaller and larger than 1 micrometer, respectively [2]. Big particles' size usually ranges between 2.5 and 10 micrometers (from about 25 to 100 times thinner than a human hair) [3] These particles are called PM10 (stands for Particulate Matter up to 10 micrometers in size). The small particles' size is smaller than 2.5 micrometers (100 times thinner than a human hair) These particles are called PM2.5 (Particulate Matter up to 2.5 micrometers in size) [3]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
