NO2_OA-ICOS_Towergas_SMR
operational
🔬 off-axis integrated cavity output spectrometer
🏭 Los Gatos
📦 Los Gatos NO2 Analyzer
S/N 15-0026
📌 http://hdl.handle.net/21.11157/s28h2-5x182
▶ Description
Off-axis integrated cavity output spectrometer detector operated at the observatory platform SMEAR II (Hyytiäla) to perform in-situ measurements of nitrogen oxides (NOx).
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▶ 🔧 Inlet System
| Operated in atmospheric simulation chamber | ✗ |
| Measurement height above ground | 35.0 m |
| Measurement height above building | 35.0 m |
| Distance from VOC inlet | 0.0 m |
| Distance from condensables inlet | 0.0 m |
| Distance from ozone inlet | 0.0 m |
| Inlet tube material | PFA |
| Residence time | 3.8 s |
| Humidity/Temperature control | None |
| Inlet line heating | ✗ |
| Filter inlet material | PTFE (Teflon) |
| Inlet filter mesh size | 5.0 µm |
▶ 📐 Calibration
| Gas standard concentration | 10.0 µmol/mol |
| Gas standard uncertainty | 0.1 µmol/mol |
| Gas standard confidence interval | 95 % |
| Zero air | Zero Air generator |
| Zero air manufacturer | UHEL |
| Zero air model | UHEL custom build |
NO₂ Calibration
| Type | GPT |
| Automation | Automatic |
| Frequency | 1.0 months |
| NO₂ calibrator manufacturer | Umwelttechnik MCZ |
| NO₂ calibrator model | Umwelttechnik MCZ CMK5 Touch |
| NO₂ calibrator serial number | 2309-173 |
NO₂ Certificates (4)
Name: AirProducts_NOx_2021_SMR
Supplier: Other
Cylinder: GQ81XC0
Valid: 2021-08-02 → 2024-11-26
Applied: 2022-10-01 → 2023-09-19
Name: Linde_NOx_2018_SMR
Supplier: Other
Cylinder: 7523112456598
Valid: 2018-08-17 → 2020-08-17
Applied: 2023-09-20 → 2024-02-05
Name: AirProducts_NOx_2023_SMR
Supplier: Other
Cylinder: GC21JRA
Valid: 2023-09-21 → 2026-09-13
Applied: 2024-02-06 → 2025-03-17
Name: NPL_NOx_2023_SMR
Supplier: NPL
Cylinder: D109148
Valid: 2023-10-20 → 2025-10-20
Applied: 2025-03-18 → ?
▶ 📏 Auxiliary Measurements
| Role | Type | Manufacturer | Model | Serial number |
|---|---|---|---|---|
| Ozone instrument | ultra-violet absorption detector | Thermo Fisher Scientific | Thermo 49i | 1202969621 |
| Meteorology instrument | – | Rotronic | Rotronic HC2-S | – |
| Meteorology instrument | – | Edgetech | – | – |
▶ 📋 Measurement QA/QC
| Instrument log book | Electronic |
| Checklist | 1.0 days |
▶ ✅ Data QA/QC
| Time series analysis of calibrations | ✓ |
| Time series analysis of compound ratios | ✗ |
| @VOC@ | ✗ |
▶ 📤 Data Submission
| Database | Submission interval |
|---|---|
| ACTRIS | 1.0 years |
▶ 👤 Operators
| Operator | Level |
|---|---|
| 0000-0001-5019-0904 | expert |