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