Data availability, cloud cover & calibration — per day; click a day to open that night in the daily panel
Status
Pass
Warning
Error
No data
Cloud cover
0
4
8 octas
Calibration
calibrated no scene no night atmosphere retrieval instrument no data
MEDIAN C_L (LIQUID-CLOUD)
4.333e+07
36 calibrated nights
SPREAD (P10-P90)
49%
3.341e+07 … 5.481e+07
15-DAY DRIFT
-7.0%
vs the preceding 45 d
LAST VALID
today
2026-10-19
Liquid-cloud — calibration constant over time 54% success · 36/67 · median 4.333e+07
Liquid-cloud 54% success · 36/67 · median 4.333e+07 · rel. unc 5%
All Liquid-cloud calibrations (67) — click a flag for its meaning
| Date | Flag | C_L | Uncertainty | Extra | Message |
|---|---|---|---|---|---|
| 20261019 | 1.0 Successful | 5.463e+07 | 2.30e+06 | 33 prof | OK (33 profiles) |
| 20261018 | 1.0 Successful | 5.812e+07 | 3.11e+06 | 79 prof | OK (79 profiles) |
| 20261017 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20261016 | 1.0 Successful | 3.199e+07 | 3.07e+06 | 325 prof | OK (325 profiles) |
| 20261015 | 1.0 Successful | 4.061e+07 | 1.91e+06 | 134 prof | OK (134 profiles) |
| 20261014 | -22.0 Cloud: peak not sharp above | — | — | 0 prof | Cloud: peak not sharp above (300 m) |
| 20261013 | 1.0 Successful | 3.752e+07 | 3.39e+06 | 54 prof | OK (54 profiles) |
| 20261012 | 1.0 Successful | 4.341e+07 | 2.77e+06 | 17 prof | OK (17 profiles) |
| 20261011 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20261010 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20261009 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20261008 | 1.0 Successful | 4.774e+07 | 1.10e+06 | 13 prof | OK (13 profiles) |
| 20261007 | -22.0 Cloud: peak not sharp above | — | — | 0 prof | Cloud: peak not sharp above (300 m) |
| 20261006 | -25.0 Cloud: cloud base out of range | — | — | 0 prof | Cloud: cloud base out of range |
| 20261005 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20261004 | -22.0 Cloud: peak not sharp above | — | — | 0 prof | Cloud: peak not sharp above (300 m) |
| 20261003 | -22.0 Cloud: peak not sharp above | — | — | 0 prof | Cloud: peak not sharp above (300 m) |
| 20261002 | -22.0 Cloud: peak not sharp above | — | — | 0 prof | Cloud: peak not sharp above (300 m) |
| 20261001 | 1.0 Successful | 4.163e+07 | 3.24e+06 | 72 prof | OK (72 profiles) |
| 20260930 | 1.0 Successful | 4.003e+07 | 2.71e+06 | 86 prof | OK (86 profiles) |
| 20260929 | -25.0 Cloud: cloud base out of range | — | — | 0 prof | Cloud: cloud base out of range |
| 20260928 | 1.0 Successful | 4.72e+07 | 5.00e+06 | 28 prof | OK (28 profiles) |
| 20260927 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260926 | 1.0 Successful | 4.773e+07 | 2.08e+06 | 18 prof | OK (18 profiles) |
| 20260925 | -22.0 Cloud: peak not sharp above | — | — | 0 prof | Cloud: peak not sharp above (300 m) |
| 20260924 | 1.0 Successful | 5.499e+07 | 1.97e+06 | 6 prof | OK (6 profiles) |
| 20260923 | 1.0 Successful | 4.866e+07 | 2.27e+06 | 552 prof | OK (552 profiles) |
| 20260922 | 1.0 Successful | 5.109e+07 | 2.25e+06 | 307 prof | OK (307 profiles) |
| 20260921 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260920 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260919 | 1.0 Successful | 5.229e+07 | 1.88e+06 | 5 prof | OK (5 profiles) |
| 20260918 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260917 | 1.0 Successful | 5.291e+07 | 2.54e+06 | 25 prof | OK (25 profiles) |
| 20260916 | 1.0 Successful | 5.722e+07 | 3.13e+06 | 36 prof | OK (36 profiles) |
| 20260915 | -22.0 Cloud: peak not sharp above | — | — | 0 prof | Cloud: peak not sharp above (300 m) |
| 20260914 | 1.0 Successful | 4.613e+07 | 2.98e+06 | 117 prof | OK (117 profiles) |
| 20260913 | 1.0 Successful | 4.825e+07 | 2.78e+06 | 50 prof | OK (50 profiles) |
| 20260912 | 1.0 Successful | 5.361e+07 | 2.84e+06 | 173 prof | OK (173 profiles) |
| 20260911 | 1.0 Successful | 5.086e+07 | 4.32e+06 | 158 prof | OK (158 profiles) |
| 20260910 | 1.0 Successful | 5.401e+07 | 3.82e+06 | 24 prof | OK (24 profiles) |
| 20260909 | 1.0 Successful | 5.681e+07 | 1.98e+06 | 6 prof | OK (6 profiles) |
| 20260908 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260907 | 1.0 Successful | 3.945e+07 | 1.81e+06 | 12 prof | OK (12 profiles) |
| 20260906 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260905 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260904 | 1.0 Successful | 4.197e+07 | 1.76e+06 | 7 prof | OK (7 profiles) |
| 20260903 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260902 | 1.0 Successful | 4.301e+07 | 3.50e+06 | 111 prof | OK (111 profiles) |
| 20260901 | 1.0 Successful | 4.324e+07 | 1.84e+06 | 11 prof | OK (11 profiles) |
| 20260831 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260830 | 1.0 Successful | 3.946e+07 | 2.83e+06 | 18 prof | OK (18 profiles) |
| 20260829 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260828 | 1.0 Successful | 4.011e+07 | 3.34e+06 | 15 prof | OK (15 profiles) |
| 20260827 | 1.0 Successful | 3.757e+07 | 2.11e+06 | 32 prof | OK (32 profiles) |
| 20260826 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260825 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260824 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260823 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260822 | 1.0 Successful | 3.365e+07 | 2.05e+06 | 5 prof | OK (5 profiles) |
| 20260821 | 1.0 Successful | 3.461e+07 | 3.43e+06 | 34 prof | OK (34 profiles) |
| 20260820 | 1.0 Successful | 3.426e+07 | 1.17e+06 | 12 prof | OK (12 profiles) |
| 20260819 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260818 | 1.0 Successful | 3.318e+07 | 2.10e+06 | 78 prof | OK (78 profiles) |
| 20260817 | 1.0 Successful | 3.306e+07 | 1.56e+06 | 80 prof | OK (80 profiles) |
| 20260816 | 1.0 Successful | 3.276e+07 | 1.43e+06 | 283 prof | OK (283 profiles) |
| 20260815 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
| 20260814 | -24.0 Cloud: aerosol below cloud | — | — | 0 prof | Cloud: aerosol below cloud > limit |
Instrument monitoring — daily averages: laser power, window transmission, temperatures
Observation − Background (CAMS) — calibrated backscatter vs CAMS model over the selected window
Cloudnet target classification — 67 days · aerosol / cloud / drizzle / ice / supercooled (ceiloclass, driven by CAMS T)
Classification — latest — Ctrl+← → step days, or click a day in the calendar
Instrument sensitivity / detection limit — ICAO detection altitude & nighttime noise floor
