de.koeln.rrzk/amd.de.hope/lac.ceilo00.l2.zmlaa SAMD v.1.0 en HD(CP)2 hope_lac_ceilo00_l2_zmlaa HD(CP)2 short term observations, atmospheric boundary layer height derived from aerosol profile data of Ceilometer (no. 00), HOPE campaign by LACROS, data version 00 Daily files of Jenoptik CHM15k ceilometer level-2 data: mixing layer height from aerosol backscatter Anne Hirsikko (anne.hirsikko@fmi.fi) Leibniz Institute for Tropospheric Research (TROPOS), Leipzig, Germany 2014-11-27 12:11:37 (CET) CF-1.6 where applicable external This is original release of this file type. Jenoptik ceilometer: ID CHX090111, serlom TUB090013, software version 230s. NETCDF3_CLASSIC 0.02 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. Leibniz Institute for Tropospheric Research, Leipzig Leibniz Institute for Tropospheric Research, Leipzig Patric Seifert +49 341 2717 7080 seifert@tropos.de 2013-04-01 2013-05-31 300 none 15 The instrument is part of the LACROS facility that was installed on the area of a sewage treatment plant in Krauthausen, south of Juelich during the HOPE campaign. In daily data set files, following level 2 products are included: 1) mixing layer height from aerosol backscatter (zmlaa) based on STRAT-2D algorithm, 2) aerosol layer heights (zal) also based on STRAT-2D algorithm (Haeffelin et al., 2012; Morille et al., 2007). Additionally, uncertainty and bias for the variable zmlaa based on analysis in Schween et al. (AMT, 2014) are given. Observations only available if backscattering targets like aerosol particles and cloud droplets are present with sufficient quantity. It must be noted that the zmlaa is highly biased during full overcast. Therefore, it is recommend to use zmlaa only if cloudiness is less than 5/8 octas. none Jenoptik CHM15kx ceilometer 50.8797 6.4145 99 none Details of the instrument and data processing can be found from accompanying PDF document.
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2014 J. H. Schween, A. Hirsikko, U. Loehnert, and S. Crewell Mixing layer height retrieval with ceilometer and Doppler lidar: from case studies to long-term assessment none Atmos. Meas. Tech., 7, 3685–3704, 2014
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2012 M. Haeffelin, F. Angelini, Y. Morille, G. Martucci et al. Evaluation of Mixing-Height Retrievals from Automatic Profiling Lidars and Ceilometers in View of Future Integrated Networks in Europe none Boundary-Layer Meteorology, Volume 143, Issue 1, pp 49-75
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2007 Y. Morille, M. Haeffelin, P. Drobinski, J. Pelon STRAT: An Automated Algorithm to Retrieve the Vertical Structure of the Atmosphere from Single-Channel Lidar Data none J. Atmos. Oceanic Technol., 24, 761-775 Short term observations HOPE Supersites LACROS Short term observations HOPE Variable groups Atmospheric state 2 3 lat latitude latitude degree_north lon longitude longitude degree_east zsl altitude altitude above mean sea level m time time time time seconds since 1970-01-01 00:00:00 UTC time_bnds time, nv zmlaa time mixing layer height from aerosol m zmlaa_uncty uncertainty of mixing layer height retrieval from aerosol % zmlaa_bias time bias of mixing layer height from aerosol m zal time, nlayer height of aerosol layer m sunrise time of sun rise seconds since 1970-01-01 00:00:00 UTC sunset time of sun set seconds since 1970-01-01 00:00:00 UTC