Below are photos contributed by the science team at the WMO/GAW Global Station
in Nairobi, Kenya preparing
ozonesonde soundings.
Nairobi Archive
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The station group working on ozonesonde conditioning and deployment.
The workspace consists of 1) an ozonesonde test unit and
2) ozone analyzer which checks out the operation of each ozonesonde before
launch, and 3) a side arm flowtube that measures the flowrate of ozonesondes with a
soap bubble solution. All are needed to condition an ozonesonde.
A close-up of an ozonesonde. The 2 white cylindrical tubes (ECC-sensor)
contain the Anode and Cathode of the Electro Chemical Concentration (ECC) cell
sensor of differing potassium iodide (KI) concentrations. Ozone amount
is related to the electrochemical current it creates when reacting with KI.
Injecting KI solution into the ECC-sensor.
After encasing the ozonesonde and attaching the radiosonde,
the unit sits outside to stabilize and measures pressure, temperature, humidity
(PTU) and ozone ground level values.
Hand-held microtops are used at each launch to measure total ozone (in Dobson units).
The balloon is filled and ready for launch!
The station group working on ozonesonde conditioning and deployment.
The workspace consists of 1) an ozonesonde test unit and
2) ozone analyzer which checks out the operation of each ozonesonde before
launch, and 3) a side arm flowtube that measures the flowrate of ozonesondes with a
soap bubble solution. All are needed to condition an ozonesonde.
A close-up of an ozonesonde. The 2 white cylindrical tubes (ECC-sensor)
contain the Anode and Cathode of the Electro Chemical Concentration (ECC) cell
sensor of differing potassium iodide (KI) concentrations. Ozone amount
is related to the electrochemical current it creates when reacting with KI.
Injecting KI solution into the ECC-sensor.
After encasing the ozonesonde and attaching the radiosonde,
the unit sits outside to stabilize and measures pressure, temperature, humidity
(PTU) and ozone ground level values.
Hand-held microtops are used at each launch to measure total ozone (in Dobson units).
The balloon is filled and ready for launch!