de.koeln.rrzk/amd.nl.sups/ces.mwr00.l2.hua SAMD v.1.0 en HD(CP)2 sups_ces_mwr00_l2_hua HD(CP)2 long term observations, absolute humidity data of Microwave radiometer (no. 00), by Supersite CESAR, data version 00 Daily files of retrieved absolute humidity profiles from zenith observations with a 14-channel HATPRO radiometer (first generation). Henk Klein Baltink, henk.klein.baltink@knmi.nl Royal Netherlands Meteorological Institute (KNMI) 2014-11-12 CF-1.4 external data retrieved from hourly binary HATPRO files. Processed with IDL script create_ncdf_output_data (version 1.0) on bhw460.knmi.nl at Wed Nov 12 12:35:25 2014 NETCDF3_CLASSIC 0.2 daily 2 For non-commercial use only. This data is subject to the HD(CP)2/SAMD data policy to be found at https://doi.org/10.25592/uhhfdm.9823 and in the HD(CP)2/SAMD Observation Data Product Standard https://doi.org/10.5281/zenodo.1741363. CESAR data policy applies also, see: www.cesar-database.nl. CESAR (www.cesar-database.nl) Royal Netherlands Meteorological Institute Henk Klein Baltink +31 30 2206 476 henk.klein.baltink@knmi.nl 2013-01-01 2013-12-31 60 none none CESAR Observatory, Remote Sensing Site (www.cesar-observatory.nl) The KNMI HATPRO radiometer is installed at the Cabauw Observatory and operated since May 2006. The brightness temperatures provided are the values as measured by the radiometer without any post-processing applied. The radiometer is calibrated with liquid nitrogen at half yearly intervals. Meteo variables measured with the sensors attached to the radiometer are included, as well as a quality flag. none none HATPRO RPG radiometer, first generation 51.968 4.929 -0.7 1 see HATPRO manual (available from http://www.radiometer-physics.de)

paper

2005 Rose, T. et al. The implementation of an operational network of microwave radiometers is presently hampered by the cost and complexity of the available instruments. For this reason, the definition and design of a low-cost microwave radiometer suitable for automatic, high-quality observations of liquid water path (LWP) were one objective of the BALTEX cloud liquid water network: CLIWA-NET. In the course of the project, it turned out that a full profiling radiometer with 14 channels can be produced at only about 30% higher cost than a classical dual-channel IWV/LWP radiometer. The profiling capability allows simultaneous observations of LWP and the lower tropospheric (0–5 km) humidity and temperature profiles with a temporal resolution of less than 10 s and a vertical resolution from 100 m to 1 km in the planetary boundary layer depending on height and atmospheric conditions. The latter is possible due to an elevation scan capability and by the implementation of a new filter bank design [...] Atmos. Res., Special issue: CLIWA-NET: Observation and Modelling of Liquid Water Clouds, 75(3), 183-200,doi:10.1016/j/atmosres.2004.12.005 Long term observations Local observations Supersites CESAR Long term observations Local observations Variable groups Atmospheric state Long term observations Local observations Instrument groups MWR 887 2 35 product metadata for data in this file missing station_details metadata for supersite missing time time, time time in seconds since reference at the end of acquistion interval seconds since 1970-01-01 00:00:00 00:00 time_bnds time, nv missing lon longitude degree_north lat latitude degree_east zsl altitude m zag zag, height m hua time, zag absolute humidity derived with quadratic regression analysis from brightness temperatures g m-3 hur time, zag relative_humidity relative humidity derived from retrieved humidity and temperature profile 1 hua_flag time, quality flag for the humidity profile data 1 rainflag time, rain flag indicator from different sources 1