- Last updated
- November 5, 2019
- Terms of use
-
- Organization
- EnviDat: the Environmental Data Portal
- Format
- SERVICE
Description
The data contains values for u 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)
Additional information
- Identifier
- snow-drift-station-3d-ultrasonic.54108b5f-082b-483b-8ac0-a56780e44217
- Issued date
- November 5, 2019
- Modified date
- November 5, 2019
- Languages
- English
- Access URL
- https://www.envidat.ch/dataset/snow-drift-station-3d-ultrasonic/resource/54108b5f-082b-483b-8ac0-a56780e44217
- File size
- 490.0 MB
- Format
- SERVICE
- Documentation
-
