HD(CP)2 long term observations, frozen phase water content (height resolved) data of Cloudnet products (no. 00), by Supersite LACROS, data version 00
Cloudnet ice water content dataset
Access
To get a year dataset please use one of the links below to download the wget script:
2011, 2012, 2013, 2014, 2015, 2016,
Dataset Author
Patric Seifert, seifert@tropos.de, Institution: Leibniz Institut for Tropospheric Research (TROPOS), Leipzig, GermanyDescription
This file includes the ice water content derived with the iwc-Z-T method of Hogan et al., 2006 (see references), including the error and bias. A separate iwc data set is stored that contains iwc for profiles where attenuation by rain or liquid water occurred below an iwc data point. This dataset is subject to larger uncertainties due to wrong attenuation correction. The classificiation of ice pixels is based on the cloudnet target categorization.
Limitations: none
Provenance: Cloudnet-processed remote-sensing data. See the global argument *cloudnet_source* for more details.
Comments: none
Instrument 1
- Source: Metek Mira36s cloud radar
- Descriptive Instrument location: The instrument is part of the LACROS facility that is operated in the area around TROPOS in Leipzig, plus COSMO-EU model output for the gridpoint of Leipzig.
Instrument 2
- Source: Model COSMO-EU
- Descriptive Instrument location: The instrument is part of the LACROS facility that is operated in the area around TROPOS in Leipzig, plus COSMO-EU model output for the gridpoint of Leipzig.
Global information
- PID: de.koeln.rrzk/amd.de.sups/lac.cln00.l4.iwc
- Project: HD(CP)2
- Level: 4
- Updated version: 00
- File format: NETCDF3_CLASSIC
- Convention: CF-1.6 where applicable
- Average File Size Uncompressed: 20 Mb
- File name: sups_lac_cln00_l4_iwc_v[VV]_[YYYYMMDDhhmmss].nc
- Start: 2011-08-10
- End: 2016-01-01
Variables
| Name | Dimension | CF standard_name | long_name | Unit |
|---|---|---|---|---|
| iwc | time, height | mass concentration of frozen water in air | kg m-3 | |
| iwc_bias | bias of mass concentration of frozen water in air | dB | ||
| iwc_error | time, height | error of mass concentration of frozen water in air | dB | |
| iwc_inc_rain | time, height | mass concentration of frozen water in air including rainy profiles | kg m-3 | |
| iwc_retrieval_status | time, height | mass concentration of frozen water in air retrieval status | 1 | |
| iwc_sensitivity | height | sensitivity of mass concentration of frozen water in air | kg m^-3 | |
| zsl | altitude | Altitude above mean sea level | m |
Institution
Contact Person(s)
Patric Seifert (seifert@tropos.de)
References
Ewan O'Connor,Level 2a Cloudnet product: Ice water content (radar/temperature method)
Hogan, R. J., Mittermaier, M. P. and Illingworth, A. J.,The retrieval of ice water content from radar reflectivity factor and temperature and its use in evaluating a mesoscale model
Ewan O'Connor,Level 2a Cloudnet product: Ice water content (radar/temperature method)