NEWS

These are the news starting 01 Jan 2024
Click here for the news of the previous years.

01
Jul
24
Upload jun24.dat into data archive
29
Jun
24
1. I noticed this morning that the current sky image from our webcam has not been updated (for a long time): actually the camera was dead . Problem was, as so often, a bad contact. All ok again since 12:00 UTC.

2. We had a rather nice storm in the evening. Look here at the animated gif; the first two pictures show the screens of EUCLID and BLITZORTUNG. The next are those of our Boltek, spaced at 2 minutes interval:

There was a problem at the beginning, with the computer showing nothing. A reboot solved this.

14
Jun
24
The CAIRSENS O3&NO2 sensor has been refitted with a new filter at 12:30 UTC. A new filter will take some time to reach constant operation.
07
Jul
24
The problem with the graph of the TOC has been solved. The cause of the malfunction was so silly that I can not mention it....
05
Jun
24
There is a problem with the graph of the TOC values (Dobson values). As another possibility, click on the link to the Excel file to see two graphs related to meteoLCD and Uccle TOC values.
01
Jun
24
Upload may24.dat into data archive
02
May
24
1. Upload apr24.dat into data archive
2. First thunderstorm for this month ( time = UTC = local time -2):

01
May
24
Restarted WBGT sensor assembly at 12:00. Watch how the web bulb temperature starts to become lower than the dry bulb temperature...
15
Apr
24
Today we had our first real thunderstorm, short-lived. Click on the picture for a full animated GIF showing the progression from South to North. The blue crosses are the latest strikes, the yellow dots the older ones. The hashed squares are the location where the software thinks the storm is mostly located. Watch how these domains progress to the North. Time is UTC ( = local time - 2).

 

01
Apr
24
Upload mar24.dat into data archive
03
Mar
24
Upload feb24.dat into data archive
01
Mar
24
Our vintage Delta-T logger does not know about leap years... so it took the 29th Feb as first March. The monthly data file will be corrected, but the plots (today, last 7 days) will be a bit strange... best ignore this,as everything is self-healing.
08
Feb
24
Trends analysis for 2023 now finished. For the comparison of the meteoLCD TOC readings with those of Uccle, only the month's Jan to Nov are used, as the Uccle data are not yet available on the WOUDC site. The comparison with the "WebUccle" readings covers the full year.
07
Feb
24
There was a remaining contact problem with the pressure sensor, corrected this morning at 08:00 UTC. I also removed the pressure correction applied to the Gnuplot CO2 graphs, as the pressure fault made these plots absolutely wrong...
06
Feb
24
The CO2 problem is solved (13:0 UTC); there was a bad contact on the cable connector to the Vaisala GMP343 sensor. The 7 days plot will be bad for a week due to the the autoscaling feature of Gnuplot.
05
Feb
24
There is a problem with our CO2 measurements starting the 30th January,  Will try to solve asap...
02
Feb
24
Upload jan24.dat into data archive. Trends page update to 2023 trends nearly finished; PM2.5 fine particle data and TOC (total ozone column) in work.
14
Jan
23
I started to update the trends page.. this is ongoing work.
10
Jan
24
Uploaded into data archive 2023_only.xlsx Excel file with all readings, dailys and monthlys and monthly Findel values. Also meteoLCDstats_1998_2023.xlsx statistics file.
 
01
Jan
24
1. Our old faithful Delta_T datalogger does not store the year count in its data-time column, so there usually is a mess with the Gnuplot 7-days plots during the first week (but not with the "today" plots).

2. Upload dec23.dat and full year 2023.zip data into data archive

3. Look here for a comparison between our total ozone column (TOC) measurements with those published by the RMI at UCCLE on their web-site (only common days retained). Theirs is probably a mix of direct sky (DS) and zenith-sky (ZS) measurements, whereas we only measure DS. As usual ours are not too bad, no reason to be ashamed of ! And please remember that meteoLCD is since more than 20 years the only station in Luxembourg measuring TOC (and recognized by the WOUDC as station 412). I want especially give thanks to Mike Zimmer for helping out with these measurements.


 

 

 

 


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