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Issyk-Kul
-O3-
| Observation |
| Category |
: |
Air sampling observation |
| Situation |
: |
ongoing |
| Time zone |
: |
Local time 5 |
| Sampling |
| Sampling height |
: |
6 |
| Description |
: |
continuous |
| Sampling and analysis frequency |
: |
Continuous |
| Sampling environment |
: |
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| Description for sampling analysis |
: |
Real time point analyzer. The sampling line is 1/4" teflon tube. Height of the line is 6 meters above the ground and 1.5m over the top of the measurement station. Air passes through a 5 micron dust filter before reaching the instrument. Data: 1-min intervals are averaged and used to create hourly means. These in turn form the basis for daily and monthly means. |
| Instrument and Analysis |
| Measurement method |
: |
Light absorption analysis (UV) |
| Current status and history of instrument |
: |
Thermo Environmental Instrument Inc.,
TEI 49C |
| Description of instrument |
: |
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| Calibration |
| Current scale employed in the measurement |
: |
|
| Measurement calibration |
: |
Internal ozone generator. |
| Scale and calibration(treasability) |
: |
Autoranging 0-1000 ppb.
Precision 1 ppb.
Linearity +1% full scale. |
| Data Processing |
| Measurement unit |
: |
ppb |
| Data processing |
: |
The data acquisition system provides one minute mean raw data. Invalid data caused by local impact, malfunction or other effects were recognised by comparison/correlationwith other trace substances and meteorological data or with information from the station logbook and were rejected. |
| Processing for averaging |
: |
Processing for Hourly Data:
Arithmetic means are calculated from valid daily data if 20 daily data put of 30 days during the month are valid.
Processing for Daily Data:
Arithmetic means are calculated from valid hourly data if 16 hourly data put of 24 hours during the day are valid.
Processing for Monthly Data:
Arithmetic means of hour average concentrations (for example "12" means the average value from the measured concentrations from 12:00 to 12:59). |
| Data flag |
: |
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| Data remarks |
: |
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| Other Information |
| Scientific aim |
: |
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| Reference |
: |
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| submitted by Kyrgyz National University |
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