Chapter 3 ______________________________________________________ Functional Description
VAISALA _______________________________________________________________________ 23
Atmospheric Pressure/Vapor Pressure
Table 5
Products for Atmospheric Pressure
Reported Parameter
Unit
Statistic
Period
Interval
Message Tag
Atmospheric pressure
hPa
Average
1 min
10 sec
PAAVG1M
(1
QFE pressure
hPa
Average
1 min
1 min
QFEAVG1M
QFE pressure
hPa
Average
1 hour
1 hour
QFEAVG1H
QFE pressure
hPa
Minimum
1 hour
1 hour
QFEMIN1H
QFE pressure
hPa
Maximum 1 hour
1 hour
QFEMAX1H
QFE pressure
hPa
Average
1 day
1 day
QFEAVG1D
QFE pressure
hPa
Minimum
1 day
1 day
QFEMIN1D
QFE pressure
hPa
Maximum 1 day
1 day
QFEMAX1D
QFF pressure
hPa
Average
1 min
1 min
QFFAVG1M
QFF pressure
hPa
Average
1 hour
1 hour
QFFAVG1H
QFF pressure
hPa
Minimum
1 hour
1 hour
QFFMIN1H
QFF pressure
hPa
Maximum 1 hour
1 hour
QFFMAX1H
QFF pressure
hPa
Average
1 day
1 day
QFFAVG1D
QFF pressure
hPa
Minimum
1 day
1 day
QFFMIN1D
QFF pressure
hPa
Maximum 1 day
1 day
QFFMAX1D
QNH pressure
hPa
Average
1 min
1 min
QNHAVG1M
QNH pressure
hPa
Average
1 hour
1 hour
QNHAVG1H
QNH pressure
hPa
Minimum
1 hour
1 hour
QNHMIN1H
QNH pressure
hPa
Maximum 1 hour
1 hour
QNHMAX1H
QNH pressure
hPa
Average
1 day
1 day
QNHAVG1D
QNH pressure
hPa
Minimum
1 day
1 day
QNHMIN1D
QNH pressure
hPa
Maximum 1 day
1 day
QNHMAX1D
Pressured trend
hPa/3h n/a
3 hour
1 min
PTREND3H
Pressured tendency
(2
code
n/a
3 hour
1 min
PTEND3H
Water vapor pressure
hPa
Average
1 hour
1 hour
VPAVG1H
(1
Not directly reported; use QFEAVG1M instead.
(2
Pressure tendency codes; WMO code table 0200.
Pre-Requisite Code
Meaning
0
Increasing, then decreasing
1
Increasing, then steady, or increasing, then
increasing more slowly.
2
Increasing steadily or unsteadily.
Atmospheric
pressure now
higher than 3 hours
ago.
3
Decreasing or steady, then increasing; or
increasing, then increasing more rapidly.
0
Increasing, then decreasing.
4 Steady.
Atmospheric
pressure now
same as 3 hours
ago.
5
Decreasing then increasing.
5
Decreasing, then increasing.
6
Decreasing, then steady, or decreasing, then
decreasing more slowly.
7
Decreasing steadily or unsteadily.
Atmospheric
pressure now
lower than 3 hours
ago.
8
Steady or increasing, then decreasing; or
decreasing, then decreasing more rapidly.
See section QFE/QFF Pressure on page 278 for pressure calculation
formulas.
Содержание AWS330
Страница 1: ...USER S GUIDE Vaisala Automatic Weather Station AWS330 M211296EN A...
Страница 3: ......
Страница 4: ......
Страница 298: ...www vaisala com M211296EN...