
Chapter 3 _________________________________________________________ Ozone Calculation
VAISALA_______________________________________________________________________ 97
where:
This means that for ozone:
Accuracy of Ozonesonde Measurement
Certain sources of inaccuracy must be kept in mind when considering
errors in ozone measurements. Errors can originate from the ozone
sensor cell, the interface (converter), temperature and flow rate
measurement, telemetry, or they can be random errors. The
measurement procedure affects the accuracy. For example, if you
measure only ozone partial pressure, you can do measurements in a way
which is slightly different from the method you use when calculating
total ozone in the end. It is also possible to improve measurement
accuracy by developing the measurement methods in the sensing
system.
Basic sources for errors and differences between measurement systems
(the ECC system, light absorption measurement) are quite well known.
Relevant literature is also available. See Appendix D
.
M
3
=
Molar mass of ozone, 48.00 g/mol
P
3
=
Ozone partial pressure in mPa
T
=
Temperature in K
NOTE
The latest detailed technical data for the radiosonde and OIF411 can
be found on the Vaisala website, www.vaisala.com.
NOTE
Detailed specifications for the ozone sensors are available directly
from the manufacturers or from Vaisala.
1
mPa
10
48.00
10
2
u
u
8.314510
----------------------------------------
1
T
---
u P
g
m
3
------
5773.04
1
T
---
u P
g
m
3
------
|
|
Содержание RS41
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