HD(CP)2 short term observations, path of integrated water vapor data of Microwave radiometer (no. 00), HOPE-Melpitz campaign by LACROS, data version 00
Microwave radiometer retrieved prw
Access
To get a year dataset please use one of the links below to download the wget script:
2013,
Dataset Author
Ulrich Loehnert (loehnert@meteo.uni-koeln.de), Institution: Leibniz Institute for Tropospheric Research (TROPOS), Leipzig, GermanyDescription
The used microwave radiometer HATPRO has seven K band (22.235-31.4 GHz) channels that are sensitive to the humidity profile (hua), the path integrated amount of cloud liquid water (clwvi) and the path integrated amount of water vapor (prw). These files contain prw as a function of measurement time, elevation and azimuth angle observing direction. prw is based on multi-variate regression retrievals. Provided uncertainties describe the expected standard error of prw. Note, that prw values are given for all available times so that it is up to the user to decide whether or not to use the values if quality flags are set. Additionally included are temperature, pressure and humidity at the instrument location as well quality flags characterizing the instrument and retrieval performance.
Limitations: none
Provenance: none
Comments: prw errors are given as a function of retrieval elevation angle. Note, observations may occur at different angles (interpolation).
Instrument 1
- Source: RPG Microwave Radiometer HATPRO, Generation 2
- Descriptive Instrument location: The instrument is part of the LACROS facility that was installed at the TROPOS field site of Melpitz, approximately 40 km NE of Leipzig.
Global information
- PID: de.koeln.rrzk/amd.de.hopm/lac.mwr00.l2.prw
- Project: HD(CP)2
- Level: 2
- Updated version: 00
- File format: NETCDF3_CLASSIC
- Convention: CF-1.6
- Average File Size Uncompressed: 2 Mb
- File name: hopm_lac_mwr00_l2_prw_v[VV]_[YYYYMMDDhhmmss].nc
- Start: 2013-09-04
- End: 2013-10-21
Variables
| Name | Dimension | CF standard_name | long_name | Unit |
|---|---|---|---|---|
| prw | time | atmosphere_mass_content_of_water_vapor | none | kg m-2 |
| prw_err | n_ret | none | These values denote the standard error of atmosphere mass content of water vapor or off zenith path integrated water vapor at the corresponding retrieval elevation angle. | kg m-2 |
| prw_off_zenith | time | none | off zenith path integrated water vapor | kg m-2 |
| prw_off_zenith_offset | time | none | off zenith path integrated water vapor offset correction based on brightness temperature offset | kg m-2 |
| prw_offset | time | none | atmosphere_mass_content_of_water_vapor offset correction based on brightness temperature offset | kg m-2 |
| zsl | none | altitude | altitude above mean sea level | m |
Institution
Contact Person(s)
Patric Seifert (seifert@tropos.de)
References
S. Crewell and U. Loehnert,Accuraccy of cloud liquid water path from ground-based microwave radiometry. Part I. Dependency on Cloud model statistics.