Sonic wind component w
The data contains values for w direction of the wind in a sampling frequency of 20 Hz. Erroneour spikes were filterd in two steps.
- Define moving window uₓ = u(i-3:i+3)
- If u(i)-mean(uₓ) > 2*std(uₓ):u(i) = NaN
Frozen detectors resulted in continuous zero values (not filtered). The wind speed and direction were calculated as follows:
wind speed = sqrt(u² + v²) wind direction = 180° + (180° / PI)* arctan2 (-u, -v)
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Informations additionnelles
| Champ | Valeur |
|---|---|
| Dernière modification de la donnée | 15 juin 2021 |
| Dernière modification de la métadonnée | 16 décembre 2025 |
| Créé le | 15 juin 2021 |
| Format | SERVICE |
| Identifier (Permalink) | snow-drift-station-3d-ultrasonic.a0d480eb-e00a-4508-9d76-16da99c61b61 |
| Date de publication | 5 novembre 2019 |
| Date de modification | 5 novembre 2019 |
| Langues | Anglais |
| URL d'accès | https://www.envidat.ch/dataset/snow-drift-station-3d-ultrasonic/resource/a0d480eb-e00a-4508-9d76-16da99c61b61 |
| Licence (Conditions d'utilisation) | Non-commercial Allowed / Commercial Allowed / Reference Required |
| Format | SERVICE |
| Couverture | - |
| Documentation | - |
| Service d'accès | - |
| Résolution temporelle | - |
| Byte size | 513 827 192 |
| Datastore active | False |
| Datastore contains all records of source file | False |
| Display name | Sonic wind component w |
| Has views | False |
| Id | 050b95a9-491f-484d-adfc-8ce5fa0645a9 |
| Identifier | snow-drift-station-3d-ultrasonic.a0d480eb-e00a-4508-9d76-16da99c61b61 |
| Issued | 2019-11-05T14:43:20+00:00 |
| Language | ['en'] |
| License | https://opendata.swiss/terms-of-use#terms_by |
| Modified | 2019-11-05T14:43:20+00:00 |
| Package id | 58a12251-b8e1-4798-8559-c46ae93e2bc5 |
| Position | 2 |
| Rights | https://opendata.swiss/terms-of-use#terms_by |
| State | active |
| Title | Sonic wind component w |
| Uri | https://www.envidat.ch/dataset/snow-drift-station-3d-ultrasonic/resource/a0d480eb-e00a-4508-9d76-16da99c61b61 |