de.koeln.rrzk/amd.de.sups/joy.ceilo00.l2.zcb SAMD v.1.0 en HD(CP)2 sups_joy_ceilo00_l2_zcb HD(CP)2 long term observations, cloud base altitude data of Ceilometer (no. 00), by Supersite JOYCE, data version 00 Daily files of Cloud base altitude from JOYCE Jenoptik ceilometer Anne Hirsikko (anne.hirsikko@fmi.fi) Research Center Juelich, Institute for Energy and Climate research (IEK-8) 2015-11-05 12:10:15 (CET) CF-1.6 where applicable external Measured with software version 12.12.1 2.13 0.719 (with software version 0.717 during 10.-15.8.2013). Original release of the product in the HD(CP)2 data base. NETCDF3_CLASSIC 0.3 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. Data of JOYCE, Processed by IGMK, University of Cologne Institute of Geophysics and Meteorology, University of Cologne Ulrich Loehnert +49 221 470 1779 loehnert@meteo.uni-koeln.de 2013-03-08 2013-12-29 15 none 15 The ceilometer is installed by the JOYCE; on the roof of the Institute for Energy and Climate Research, Research Center Juelich. This product includes cloud variables (tcc, bcc, sci, vor, voe, zcb, cbe, cdp, cde) provided by sensor measurement software. Sensor measurement software given cloud base altitude indicates base of any hydrometeors. Thus it tends to indicate base of precipitation/drizzle rather than liquid cloud base altitude, but seems to find ice cloud bases reliably. For more complete cloud type and hydrometeor identification, the data user is referred to product sups_joy_cln00_l4_class in the HD(CP)2 data base. none Jenoptik CHM15k ceilometer: ID CHM120109, serlom TUB120017, software version 12.12.1 2.13 0.719 50.9085 6.4135 111 none Details of the instrument and data processing can be found from attached PDF document. Long term observations Local observations Supersites JOYCE Long term observations Local observations Variable groups Cloud properties 5760 2 3 lat latitude latitude degrees_north lon longitude longitude degrees_east zsl altitude altitude above mean sea level m zenith zenith_angle beam direction due zenith degree azi sensor_azimuth_angle sensor azimuth due reference point degrees time time time time seconds since 1970-01-01 00:00:00 time_bnds time, nv tcc_chm15k time total cloud cover 1 bcc_chm15k time base cloud cover 1 sci_chm15k time sky condition index 1 vor_chm15k time vertical optical range m voe_chm15k time vertical optical range error m zcb_chm15k time, layer cloud base altitude given by sensor software m cbe_chm15k time, layer cloud base altitude variation given by sensor software m cdp_chm15k time, layer cloud depth given by sensor software m cde_chm15k time, layer cloud depth variation given by sensor software m