---
instrument_id: '350'
data_file_original_name: '20140102_OH.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Start_UTC'
    - 'Stop_UTC'
    - 'Mid_UTC'
    - 'OH_chem'
    - 'OH_interference'
dataset_id: '1051'
experiment_link: 'https://icarus.ucdavis.edu/chambers/545/experiments/391'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/545/experimentSets/162'
chamber_link: 'https://icarus.ucdavis.edu/chambers/545'
dataset_created_at: '2020-09-08 12:29:04'
dataset_updated_at: '2020-10-20 10:50:51'
instrument_link: 'https://icarus.ucdavis.edu/chambers/545/instruments/350'
instrument:
    id: '350'
    short_name: 'GTHOS_OH'
    full_name: 'Ground-based Hydrogen Oxides Sensor reporting OH (Brune)'
    manufacturer: 'Custom'
    model: 'Custom'
    year: ''
    data_recording_software: 'Inquire with PI'
    data_analysis_software: 'Inquire with PI'
    raw_data_time_resolution: 'Inquire with PI'
    analysis_data_averaging: 'Inquire with PI'
    detection_limit: '1.4e5 molec/cm3'
    quantification_limit: ''
    sensitivity_to_temperature: 'Inquire with PI'
    sensitivity_to_relative_humidity: 'Inquire with PI'
    sampling_method: 'Direct sampling'
    sample_preparation_method: 'None'
    sample_residence_time_in_seconds: ''
    length_of_tubing_in_cm: '5'
    flow_rate: '6 LPM'
    tubing_material: 'Stainless Steel'
    chemical_identification_method: 'Laser-Induced Fluorescence of OH'
    data_analysis_method: 'Inquire with PI'
    quantification_method: 'Applying the direct calibration factor for OH'
    calibration_method: 'Producing known amounts of OH in a discharge flow tube, see Brune et al., J. Atmos. Sci., 1995'
    calibration_drift_estimate: ''
    calibration_schedule: ''
    uncertainty_estimation_method: 'Total uncertainty based on calibration uncertainties'
    known_interferences: 'Interference around instances of high biogenic activity that is temperature dependent (see Mao et al., ACP, 2012). This is corrected for by chemical zeroing.'
    link_to_supplemental_information: 'https://journals.ametsoc.org/doi/pdf/10.1175/1520-0469%281995%29052%3C3328%3AMOAHIT%3E2.0.CO%3B2'
    additional_notes: 'PI is William Brune from Penn State'
    organization_id: '551'
    created_at: '2020-01-10T01:26:05.000000Z'
    updated_at: '2021-07-27T23:06:03.000000Z'
    column_descriptors: '"OH chem" means the OH radical concentration obtained after chemical zeroing using C3F6 - this is the "real" OH present in the chamber. "OH intereference" is the additional signal read as OH that is not OH, this is an artifact made inside the instrument (do not use as OH).'
    sampling_protocol: 'Online'
    skip_headers: '1'
    tubing_inner_diameter: 'Inquire with PI'
    what_is_measured: 'Hydroxyl radicals (OH)'
    measurement_uncertainty: 'OH chem uncertainty (32 pptv), OH interference uncertainty (32 pptv)'
    measurement_units: 'Time (units: seconds), OH chem (units pptv), OH interference (units pptv)'

---
Start_UTC,Stop_UTC,Mid_UTC,OH_chem,OH_interference
66882,67481,67182,-9999.000,-9999.000
67482,68081,67782,0.140,0.419
68082,68681,68382,0.315,-0.081
68682,69281,68982,-0.085,0.392
69282,69881,69582,-0.301,0.623
69882,70481,70182,0.281,0.069
70482,71081,70782,0.324,-0.040
71082,71681,71382,-1.515,1.780
71682,72281,71982,-0.556,0.882
72282,72881,72582,-0.266,0.537
72882,73481,73182,-0.231,0.557
73482,74081,73782,-0.426,0.740
74082,74681,74382,-0.795,1.034
74682,75281,74982,-0.589,0.968
75282,75881,75582,-0.359,0.716
75882,76481,76182,-0.710,1.082
76482,77081,76782,-0.181,0.654
77082,77681,77382,-0.122,0.445
77682,78281,77982,-0.245,0.750
78282,78881,78582,-0.754,1.201
78882,79481,79182,-0.498,1.012
79482,80081,79782,-0.555,1.032
80082,80681,80382,-0.511,0.946
80682,81281,80982,-0.687,0.815
81282,81881,81582,-0.283,0.632
81882,82481,82182,-0.220,0.754
82482,83081,82782,-0.666,1.206
83082,83681,83382,-0.211,0.749
83682,84281,83982,-0.529,0.670
84282,84881,84582,-0.331,0.496
84882,85481,85182,-0.635,0.755