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| 
Arrival Heights
-O3-
| Observation |
| Category |
: |
Air sampling observation |
| Situation |
: |
ongoing |
| Time zone |
: |
UTC |
| Sampling |
| Sampling height |
: |
6 |
| Description |
: |
continuous |
| Sampling and analysis frequency |
: |
Continuous |
| Sampling environment |
: |
50m elevation
coastal influence
Antarctic analysis |
| Description for sampling analysis |
: |
Continuous sampling through 6m inlet and teflon inlet line with PTFE filter membrane
1-3 lpm sample flow rate |
| Instrument and Analysis |
| Measurement method |
: |
Light absorption analysis (UV) |
| Current status and history of instrument |
: |
1996.12 - 2002.12 : DASIBI
2003.01 - : TEI |
| Description of instrument |
: |
TEI-49c
1.0 ppb precision
+/- 1.0% of full scale linearity |
| Calibration |
| Current scale employed in the measurement |
: |
the NIST standard |
| Measurement calibration |
: |
0-200 ppb calibration scale
Sample gas produced from NIST-calibrated standard TEI instrument
|
| Scale and calibration(treasability) |
: |
Calibration direct from NIST Traceable standard TEI instrument
Calibration standard from February 2012
|
| Data Processing |
| Measurement unit |
: |
ppb |
| Data processing |
: |
instrument outputs in two files
1 hour records with instrument details
5 minute data averages
These files are then processed to remove any data that has been affected by outside influences (ie. power outage, zero span checks etc)
Data is collected and processed weekly |
| Processing for averaging |
: |
Processing for Hourly Data:
Average of all data
Processing for Daily Data:
Average of all data
Processing for Monthly Data:
Average of all data |
| Data flag |
: |
|
| Data remarks |
: |
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| Other Information |
| Scientific aim |
: |
Measurement of background surface ozone.
NOx influence on surface level ozone.
|
| Reference |
: |
http://www.esrl.noaa.gov/gmd/ozwv/surfoz/index.html |
|
| submitted by Earth System Research Laboratory, NOAA |
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