TABLE IV-9 – ANNUAL AND MONTHLY STATISTICS OF TOTAL COLUMNAR WATER VAPOUR
CONTENT +
Station number
Measurement: Experiment No.
Start date (yyyy.mm.dd)
End date (yyyy.mm.dd)
Duration d (days) (4)
______
Type of instrument
_____
(MWRD= Microwave radiometer,
RAOB= radiosonde,
GNSSRx= Global Navigation Satellite System Receiver)
RAOB sensor type
site name
____________________
country (1)
__
latitude (–90..+90) (degrees)
_______
longitude (0..360) (degrees) E
_______
altitude amsl hgr (m)
____
antenna height ag hr (m)
____
(only for the MWRD and GNSR)
MWRD 3 dB beamwidth r (degrees)
_____
antenna type
__________
only for MWRD or GNSR
MWRD antenna diameter D (m)
______
MWRD antenna feed type
__________
MWRD radome? (Y/N)
_
MWRD maximum side-lobe angle
_____
MWRD relative level of maximum side lobe (dB) _ _ _  _ _
MWRD dynamic range (K)
______
MWRD integration time (s)
____
MWRD bandwidth (MHz)
______
Data sampling interval (s)
_ _ _ _ _ _ _ _ _
MWRD Calibration interval (days)
___
MWRD Data resolution (K)
_____
MWRD Data accuracy (K)
_____
______
____/__/__
_ _ _ _/ _ _ / _ _
_ _ _ _ _ _
_ _ _ _ _ __ _ _ _ _ __ _ _ _ _ _
MWRD Frequency 1 f1 (GHz)
MWRD Frequency 2 f2 (GHz)
MWRD Frequency 3 f3 (GHz)
MWRD Frequency 4 f4 (GHz)
MWRD Frequency 5 f5 (GHz)
MWRD Frequency 6 f6 (GHz)
MWRD Frequency 7 f7 (GHz)
MWRD Frequency 8 f8 (GHz)
MWRD Frequency 9 f9 (GHz)
MWRD Frequency 10 f10 (GHz)
MWRD Frequency 11 f11 (GHz)
MWRD Frequency 12 f12 (GHz)
MWRD Frequency 13 f13 (GHz)
MWRD Frequency 14 f14 (GHz)
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
_ _ _ _ _ _
Radiosonde data collected? (Y/N)
(only for the MWRD and the GNSSRx)
______
GNSSRx processing technique
Accuracy rms
_ __ _ _ _ _ __ _ _ _ _ _
_____
Ground Temperature recorded? (Y/N)
Ground Humidity measured? (Y/N)
Ground Pressure measured? (Y/N)
Ground Cloud coverage recorded? (Y/N)
______
______
______
______
Table a (3, 5):
Total columnar water vapour content V exceeded for percentage of time (kg/m2 or mm)
Percentage of year
V exceeded (kg/m2 or mm)
0.1
10
95
0.2
20
99
0.3
30
0.5
50
1
60
2
70
3
80
5
90
-
-
-
-
-
-
-
-
____________________
+
In addition to the tables provided in this document the submitter is requested to provide the data files
according to the instructions available on ITU-R SG 3 Web page: Study Group 3 databanks - DBSG3.
-2-
Table b(2, 5):
mV = Mean value of total columnar water vapour content V of the month
V = Standard deviation of total columnar water vapour content V of the month
Month of year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2
mV
(kg/m or mm)
V
(kg/m2 or mm)
Instrument up-time (3) (%)
References:
Comments:
(1)
Use ISO 3166-1 alpha-2 country codes..
(2)
Wherever possible values of mV and V for both individual years (= 12 consecutive months) and multi-year observation periods.
(3)
If outages occurred in the measurement of water vapour columnar content, provide in comments information on when the outage
occurred.
(4)
Duration is the total time of valid measurements for this dataset, expressed as a real number (e.g. 339.888 days).
The ratio of duration to the period identified by the start and the end dates of this dataset is the availability (e.g. start=2001/1/1,
end=2001/12/31, duration= 339.888 days corresponds to 93.12 % availability).
(5)
Submissions should comply with the acceptance criteria specified in Rec. ITU-R P.311.
____________________