O3: FULL-AUTOMATIC OZONE DETECTOR
Purpose of Participation:
- Quantification of atmospheric ozone (O3) concentration in the European Arctic
- Identify air masses with recent stratospheric influence
Instrument description
The O3 detector employs the long-path UV absorption technique for the measurement of concentrations of atmospheric O3. The instrument measures continuously the absorption of ultraviolet radiation at 253.7 nm in the sampled ambient air. The absorption is proportional to the O3 concentration.
| Species | Ozone |
| Method | UV absorption |
| Quantity primary | |
| Quantity secondary | |
| Spectral range | 0 - 10 km |
| Altitude range | |
| Vertical resolution | depending on vertical velocity of the aircraft |
| Temporal resolution | 5 min |
| Operation | every flight |
| Precision | 2 ppb |
| Data availability (during campaign) | next day |
| Final data (after campaign) | three months |
Specific remarks
- The airborne measurements start after take-off and continue until landing.