User`s guide

Chapter 3 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 63
Table 16 Parameters in Enhancement Data Screens
Field Description
TACMET MAST Weather station identification
DATE Current date
TIME Current time
Cloud Cover and Base Cloud covers CL1 to CL5 and cloud bases CB1
to CB5.
CL1 ... CL5 CL1 is the lowest cloud base (unit is Octa).
CB1 ... CB5 Height of the cloud base.
RAIN Precipitation values from PWD11A
1h ... 24h Last 1 (and 3, 6, 24) -hour precipitation sum
Rate In/Hr Rain intensity
SNOW SNOW values from PWD11A
1h ... 24 h Last 1 (and 3, 6, 24) -hour snow sum
PW Present weather code (see Table 17 below and
Table 18 below)
Lightning (15 min) Lightning values (last 15 minutes)
Distance SM Distance to nearest lightning strike
Direction º Direction to nearest lightning strike
Count Number of lightning strikes in 15 minutes
RfNoise SA20M skinmap information: N (None), L (Low),
M (Medium), and H (High)
Visibility 1A (SM) 1-minute average visibility values
Visibility 10A (SM) 10-minute average visibility values
Table 17 Present Weather Codes (Qualifiers)
Intensity Descriptor
Light (-)
1)
BC Patches
1)
Moderate
1)
(no qualifier) SH Showers
1)
Heavy (+)
1)
TS Thunderstorm
2)
VC In the vicinity
2)
FZ Freezing
1)
1) Codes from the PWD11A sensor
2) Codes generated by MAWS using data also from other sensors than PWD11A
Table 18 Present Weather Codes (Phenomena)
Precipitation
1)
Obscuration Other
DZ Drizzle BR Mist
1)
SQ Squalls
2)
RA Rain FG Fog
1)
SN Snow DU Widespread dust
1)
IC Ice crystals HZ Haze or dust
3)
PL Ice pellets
1) Codes from the PWD11A sensor
2) Codes generated by MAWS using data also from other sensors than PWD11A
3) Codes generated using PWD11A and MAWS data