6 
III. Symbols and abbreviations: 
ADCP 
Acoustic Doppler Current Profiler 
bin 
ADCP bin number, the bin length is 1 or 2 metres 
dir 
mean current direction 
echo 
echo intensity of ADCP signals in relative units (ADCP counts) 
Id 
mooring identifier 
kM 
mean kinetic energy 
ks 
eddy kinetic energy 
mab 
metres above bottom 
mag 
magnitude of current vector V 
max 
maximum value 
mean 
mean value 
min 
minimun value 
peg 
percent good: Percentage of usable ADCP return pings 
SF 
stability factor in percent: SF = (V/mag) x 100 
SF = 100% stands for a constant current direction 
RCM 
Recording Current Meter 
sd 
sampling depth 
si 
sampling interval 
u, V 
zonal and meridional component of V 
uV 
zonal variance 
uV 
covariance 
vV 
meridional variance 
V 
mean current vector 
WLR 
Water Level Recorder