Differences

This shows you the differences between two versions of the page.

--- ceilo [2020/08/31 16:53] – [Principle] bpospich
+++ ceilo [2022/01/20 22:00] (current) – [Instruments at JOYCE / University of Cologne] bpospich
@@ Line 1: / Line 1: @@
-====== Ceilometer ======
+====== Ceilometer observations ======
 {{:wiki:instruments:ceilo_jenoptik_05.jpg?direct&500|Ceilometer ©B. Pospichal}} \\
@@ Line 24: / Line 24: @@
-===== 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
 ===== Data availability =====
@@ Line 41: / Line 33: @@
 | 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   |
+| 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 (6 MB)   | //YYMMDD_ct25k_jue_l0b.nc//   | from CT25K    |
@@ Line 49: / Line 42: @@
 ===== Link to current observations =====
-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]]
@@ Line 55: / Line 48: @@
 ===== Measurement examples =====
-{{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 //
@@ Line 67: / Line 60: @@
 ^ Instrument name      ^ current location       ^ in operation since          ^  features          ^
 | [[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    |