A new development of drop-sondes for the measurement of CO2-concentrations at extended volcanic areas
- One of the main compounds emitted by volcanoes or volcanic fields is CO2. This is not only emitted from localized craters, but can emerge as distributed and fugitive emissions on extended volcanic areas. In this situation it is of interest to explore the distribution and horizontal concentration profiles of the CO2-emissions. For this purpose new drop-sondes for sensor measurements of CO2 emissions are under development at the Duesseldorf University of Applied Sciences. These drop-sondes are designed to be dropped from aircraft or drones over volcanic areas in order to map the distributed CO2 concentrations over longer times in an unattended way. They are very lightweight and cheap, so that a large number of drop-sondes might be deployed even over remote areas or regions with difficult access. The data are transmitted with GSM broadcasting and can be visualized on a geographical map. The drop-sondes use an NDIR CO2 sensor as a base for the measurement unit. Additionally to CO2 theOne of the main compounds emitted by volcanoes or volcanic fields is CO2. This is not only emitted from localized craters, but can emerge as distributed and fugitive emissions on extended volcanic areas. In this situation it is of interest to explore the distribution and horizontal concentration profiles of the CO2-emissions. For this purpose new drop-sondes for sensor measurements of CO2 emissions are under development at the Duesseldorf University of Applied Sciences. These drop-sondes are designed to be dropped from aircraft or drones over volcanic areas in order to map the distributed CO2 concentrations over longer times in an unattended way. They are very lightweight and cheap, so that a large number of drop-sondes might be deployed even over remote areas or regions with difficult access. The data are transmitted with GSM broadcasting and can be visualized on a geographical map. The drop-sondes use an NDIR CO2 sensor as a base for the measurement unit. Additionally to CO2 the atmospheric pressure, temperature and humidity are measured. The sensor unit is mounted in a special shock absorbing housing, which is designed to absorb impacts from the touch down after dropping of the sensor and is able to resist even adverse weather conditions. First measurement results and more details of the design of the sensor unit will be presented in this contribution…


| Author: | Konradin WeberORCiD, Christian FischerORCiD, Detlef Amend |
|---|---|
| open access: | Bronze - frei zugänglich aber ohne Lizenzhinweis, d.h. keine Weitergabe |
| Fachbereich/Einrichtung: | Hochschule Düsseldorf / Fachbereich - Maschinenbau und Verfahrenstechnik |
| Document Type: | Conference Proceeding |
| Year of Completion: | 2020 |
| Language of Publication: | English |
| Contributing Corporation: | Universität Hamburg, Deutsche Geophysikalische Gesellschaft e.V. |
| Parent Title (English): | Physics of Volcanoes 2020 |
| Subtitle (German): | 6th Workshop on Physics of Volcanoes |
| First Page: | 32 |
| Related URL: | https://web.archive.org/web/20240702210730/https://www.conferences.uni-hamburg.de/event/104/attachments/86/133/PoV_VI_BookOfAbstracts.pdf |
| Tag: | Luftreinhaltung |
| GND Keyword: | Sonde; Kohlendioxidemission; Messtechnik; Vulkanismus |
| Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten |
| Licence (German): | |
| Release Date: | 2025/03/13 |
| Note: | Vortragsabstract |