oo: originate code, see below
yy: year since 2000
MM: month of the year
dd: day of the month
hh: hour of day (24 hour clock)
mm: minute of hour
t: type code (e = extinction, b = backscatter)
w: wavelength given in nm
the originate code is as follows (Please note
that the code letters are lower case !):
ab: Aberystwyth
an: Andoya
at: Athens
ba: Barcelona
be: Belsk
bu: Bucharest
ca: Cabouw
gp: Garmisch-Partenkirchen
gr: Granada
hb: Hamburg Bergedorf
hh: Hamburg
hp: Haute-Provence
is: Ispra
ju: Jungfraujoch
kb: Kühlungsborn
la: L'Aquila
lc: Lecce
le: Leipzig
li: Lisboa
lk: Linköping
ma: Madrid
mi: Minsk
mu: Munich
na: Napels
ne: Neuchatel
ox: Oxylithos
pl: Palaiseau
po: Potenza
sf: Sofia
th: Thessaloniki
Raman measurements use the emitted wavelength.
The given date/time in the filename corresponds to the starttime of
the measurement.