HD(CP)2 long term observations, attenuated backscatter coefficient data of Ceilometer (no. 00), by Supersite JOYCE, data version 00
Daily files of JOYCE Jenoptik ceilometer uncalibrated attenuated backscatter data
Access
To get a year dataset please use one of the links below to download the wget script:
2013, 2014, 2015, 2016, 2017, 2018, 2019,
Dataset Author
Anne Hirsikko (anne.hirsikko@fmi.fi), Institution: Research Center Juelich, Institute for Energy and Climate research (IEK-8)Description
Attenuated backscatter coefficient is calculated from raw signal by following principals of lidar equation. Quality mask qbeta was created by following Heese et al., Atmos. Meas. Tech., 3, 1763-1770, 2010. For ice cloud (especially optically thin) research it is recommended to use other data quality masking methods (e.g. van Tricht et al., Atmos. Meas. Tech., 7, 1153-1167, 2014). For more details see accompanying data description document.
Limitations: Measurements only available if backscattering targets like aerosol particles and cloud droplets are present with sufficient quantity. Attenuated backscatter coefficient is uncalibrated in version 01 files.
Provenance: Data of JOYCE, Processed by IGMK, University of Cologne
Comments: Calculated uncalibrated attenuated backscatter coefficient by means of Lidar equation from CHM15k - Nimbus measurements.
Instrument 1
- Source: Jenoptik ceilometer: ID CHM120109, serlom TUB120017, software version 12.12.1 2.13 0.719
- Descriptive Instrument location: The ceilometer is installed by JOYCE; on the roof of the Institute for Energy and Climate Research, Research Center Juelich.
Global information
- PID: de.koeln.rrzk/amd.de.sups/joy.ceilo00.l1.beta
- Project: HD(CP)2
- Level: 1
- Updated version: 00
- File format: NETCDF3_CLASSIC
- Convention: CF-1.6 where applicable
- Average File Size Uncompressed: 30 Mb
- File name: sups_joy_ceilo00_l1_beta_v[VV]_[YYYYMMDDhhmmss].nc
- Start: 2013-03-08
- End: 2019-12-31
Variables
| Name | Dimension | CF standard_name | long_name | Unit |
|---|---|---|---|---|
| beta | time, range | volume_attenuated_backwards_scattering_function_in_air | m-1 sr-1 | |
| zsl | altitude | altitude above mean sea level | m |
Institution
Contact Person(s)
Ulrich Loehnert (loehnert@meteo.uni-koeln.de)