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| ceilo [2020/08/31 16:53] – [Ceilometer] bpospich | ceilo [2022/01/20 22:00] (current) – [Instruments at JOYCE / University of Cologne] bpospich |
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| ===== Data quality assurance procedures ===== | |
| * Automatic rain detection (data are flagged in case of rain detected by rain sensor) | |
| * Offset corrections for liquid water path | |
| * O-B statistics from atmospheric models for brightness temperature offset correction available | |
| * Spectral consistency checks | |
| * Thresholds for Level 2 data products | |
| * Housekeeping data analysis | |
| * Visual data inspection | |
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| ===== Data availability ===== | ===== Data availability ===== |
| | Uncalibrated attenuated backscatter (background corrected) | 15 seconds | 1 file per day (30 MB) | //sups_joy_ceilo00_l1_beta_v00_YYYYMMDDHHMMSS.nc// | from CHM15k, available on SAMD | | | Uncalibrated attenuated backscatter (background corrected) | 15 seconds | 1 file per day (30 MB) | //sups_joy_ceilo00_l1_beta_v00_YYYYMMDDHHMMSS.nc// | from CHM15k, available on SAMD | |
| | Mixing layer height | 15 minutes | 1 file per day (0.02 MB) | //sups_joy_ceilo00_l2_zmlaa_v01_YYYYMMDDHHMMSS.nc// | from CHM15k, available on SAMD | | | Mixing layer height | 15 minutes | 1 file per day (0.02 MB) | //sups_joy_ceilo00_l2_zmlaa_v01_YYYYMMDDHHMMSS.nc// | from CHM15k, available on SAMD | |
| | | Cloud base height | 15 minutes | 1 file per day (0.28 MB) | //sups_joy_ceilo00_l2_zcb_v00_YYYYMMDDHHMMSS.nc// | from CHM15k, available on SAMD | |
| | Backscatter, cloud base height | 15 seconds | 1 file per day (25 MB) | //YYYYMMDD_JOYCE_CHM120109_000.nc// | from CHM15k | | | Backscatter, cloud base height | 15 seconds | 1 file per day (25 MB) | //YYYYMMDD_JOYCE_CHM120109_000.nc// | from CHM15k | |
| | Backscatter, cloud base height | 15 seconds | 1 file per day (6 MB) | //YYMMDD_ct25k_jue_l0b.nc// | from CT25K | | | Backscatter, cloud base height | 15 seconds | 1 file per day (6 MB) | //YYMMDD_ct25k_jue_l0b.nc// | from CT25K | |
| ===== Link to current observations ===== | ===== Link to current observations ===== |
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| Current observations at [[http://gop.meteo.uni-koeln.de/~Hatpro/dataBrowser/dataBrowser4.html?site=JOYCE&date=-1&UpperLeft=Ceilo_ct25k_Backscatter&UpperRight=Ceilo_ct25k_Boundarylayer-height&LowerRight=Ceilo_chm15k_raw&LowerLeft=Ceilo_chm15k_SNR|quicklook archive]] | Current observations at [[http://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser4.html?site=JOYCE&date=-1&UpperLeft=Ceilo_ct25k_Backscatter&UpperRight=Ceilo_ct25k_Boundarylayer-height&LowerRight=Ceilo_chm15k_raw&LowerLeft=Ceilo_chm15k_SNR|quicklook archive]] |
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| ===== Measurement examples ===== | ===== Measurement examples ===== |
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| {{wiki:examples:tophat_200621_jue_l1.png?direct&400|TOPHAT-TB}} | {{wiki:examples:200202_ct25k_jue_l0b.png?direct&400|CT25-K}} |
| {{wiki:examples:tophat_200621_jue_l2a.png?direct&400|TOPHAT-IWV-LWP}} \\ | {{wiki:examples:20200803_jenoptik_ceilo_snr_version1.png?direct&400|SNR CHM15k}} \\ |
| //Time series of brightness temperatures (left) and Integrated Water Vapor / Liquid Water Path (right)// | //Left: Time series from CT25K (backscatter and cloud base height) on 2 February 2020, right: Time series from CHM15k (signal-to-noise ratio plus cloud and aerosol layers) on 3 August 2020 // |
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| ^ Instrument name ^ current location ^ in operation since ^ features ^ | ^ Instrument name ^ current location ^ in operation since ^ features ^ |
| | [[ct25k|Vaisala CT25K]] | JOYCE | 2007 | | | | [[ct25k|Vaisala CT25K]] | JOYCE | 2007 | | |
| | [[chm15k|LUFFT CHM15k]] | JOYCE | 2013 | Level 2 products are derived from this instrument | | | [[chm15k|Jenoptik/Lufft CHM15k]] | JOYCE | 2013 | Level 2 products are derived from this instrument | |
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