HD(CP)2 long term observations, wind measurements data of DL - scanning with varying azimuth (no. 00), by Supersite RAO, data version 04
Doppler Lidar velocity azimuth display data
Access
To get a year dataset please use one of the links below to download the wget script:
2012, 2013, 2014, 2015, 2016, 2017, 2018,
Dataset Author
Dr. Ronny Leinweber, ronny.leinweber@dwd.de, Institution: Deutscher Wetterdienst, Meteorologisches Observatorium Lindenberg / Richard-Assmann-ObservatoriumDescription
HALO Photonics Doppler Lidar (instrument number 44) was installed at the observation site 'Lindenberg Meteorological Observatory - Richard Assmann Observatory' next to the windprofiler, and it has been operated 24/7 since 10/2012. In daily data set files following level 2 products (30 minutes averages) are included: (1) 3D wind vector components (u,v,w) (2) wind speed: speed of the horizontal wind (3) wind direction: direction of the horizontal wind (4) error estimations for 3D wind vector components (u,v,w), wind speed and wind direction (5) r2: coefficient of determination - provides a measure of how well observed radial velocities are replicated by the model used to determine u,v,w wind components from the measured line of sight radial velocities (6) nvrad: number of (averaged) radial velocities used for wind calculation (7) cn: condition number - provides a measure for the degree of collinearity among the Doppler velocity measurements used for the retrieval of the wind variables (u,v,w,speed,direction). The variables 5-7 are used for the calculation of the quality mask (qwind) to be applied to variables 1-4.
Limitations: measurements only available if backscattering targets like aereosols and cloud droplets are present
Provenance: none
Comments: none
Instrument 1
- Source: HALO Photonics Doppler lidar, number: 44
- Descriptive Instrument location: none
Global information
- PID: de.koeln.rrzk/amd.de.sups/rao.dlidVAD00.l2.wind
- Project: HD(CP)2
- Level: 2
- Updated version: 04
- File format: NETCDF4
- Convention: CF-1.6
- Average File Size Uncompressed: 0.2 Mb
- File name: sups_rao_dlidVAD00_l2_wind_v[VV]_[YYYYMMDDhhmmss].nc
- Start: 2016-12-01
- End: 2018-12-31
Variables
| Name | Dimension | CF standard_name | long_name | Unit |
|---|---|---|---|---|
| w | time, height | upward_air_velocity | none | m s-1 |
| wdir | time, height | wind_from_direction | none | degree |
| wspeed | time, height | wind_speed | none | m s-1 |
| zsl | none | altitude | altitude of sensor above mean sea level | m |
Institution
Contact Person(s)
Volker Lehmann (volker.lehmann@dwd.de)
Ronny Leinweber (ronny.leinweber@dwd.de)
References
E. Paeschke et al.,An assessment of the performance of a 1.5 micrometer Doppler lidar for operational vertical wind profiling based on a 1-year trial