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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Zusätzliche Informationen
| Feld | Wert |
|---|---|
| Daten wurden zuletzt aktualisiert | 14. August 2024 |
| Metadaten zuletzt aktualisiert | 22. Dezember 2025 |
| Erstellt | 14. August 2024 |
| Format | SERVICE |
| Identifier (Permalink) | snow-drift-station-3d-ultrasonic.a0d480eb-e00a-4508-9d76-16da99c61b61 |
| Erstellungsdatum | 5. November 2019 |
| Änderungsdatum | 5. November 2019 |
| Sprachen | Englisch |
| Zugangs-URL | https://www.envidat.ch/dataset/snow-drift-station-3d-ultrasonic/resource/a0d480eb-e00a-4508-9d76-16da99c61b61 |
| Lizenz (Nutzungsbedingungen) | Non-commercial Allowed / Commercial Allowed / Reference Required |
| Format | SERVICE |
| Abdeckung | - |
| Dokumentation | - |
| Zugangsservice | - |
| Zeitliche Auflösung | - |
| 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 | 4a52328a-c186-426e-9c55-bbf912e0036e |
| 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 | 7dcb4836-e477-4e4e-b8e4-27980d9abac3 |
| 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 |