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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2022
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.946923 |
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| _version_ | 1867167680626163712 |
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| author | Herber, Andreas |
| author_facet | Herber, Andreas |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The presented spectral aerosol optical depth (AOD) data are measured with an active tracking Sun photometer SPTA. The system was installed under a quartz dome of Polar 5 to derive this mentioned AOD. It operates a filter wheel with ten selected wavelengths in the spectral range from 367 to 1024 nm. To measure the direct solar irradiance, the optics of the SPTA use an aperture with a field of view of 1°. With knowledge of the extraterrestrial signal, the spectral optical depth of the atmosphere as well as spectral optical depth of aerosol was derived. The extraterrestrial signal was calculated based on a Langley calibration, which are performed regularly in a high mountain area (Izana, Tenerife). The data were screened for contamination by clouds to minimize an artificial enhancement of the AOD. The cloud screening algorithm applied a threshold of measured irradiance and made use of the higher temporal and spatial variability of clouds compared to the rather smooth changes of aerosols properties. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_946923 |
| institution | PANGAEA |
| language | en |
| publishDate | 2022 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Aircraft measurements of aerosol optical depth in the Arctic during the AFLUX campaign 2019 Herber, Andreas AC3; aerosol optical depth; airborne photometer; Arctic; Arctic Amplification The presented spectral aerosol optical depth (AOD) data are measured with an active tracking Sun photometer SPTA. The system was installed under a quartz dome of Polar 5 to derive this mentioned AOD. It operates a filter wheel with ten selected wavelengths in the spectral range from 367 to 1024 nm. To measure the direct solar irradiance, the optics of the SPTA use an aperture with a field of view of 1°. With knowledge of the extraterrestrial signal, the spectral optical depth of the atmosphere as well as spectral optical depth of aerosol was derived. The extraterrestrial signal was calculated based on a Langley calibration, which are performed regularly in a high mountain area (Izana, Tenerife). The data were screened for contamination by clouds to minimize an artificial enhancement of the AOD. The cloud screening algorithm applied a threshold of measured irradiance and made use of the higher temporal and spatial variability of clouds compared to the rather smooth changes of aerosols properties. |
| title | Aircraft measurements of aerosol optical depth in the Arctic during the AFLUX campaign 2019 |
| topic | AC3; aerosol optical depth; airborne photometer; Arctic; Arctic Amplification |
| url | https://doi.org/10.1594/PANGAEA.946923 |