---
instrument_id: '350'
data_file_original_name: '20140129_OH.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Start_UTC'
    - 'Stop_UTC'
    - 'Mid_UTC'
    - 'OH_chem'
    - 'OH_interference'
dataset_id: '1295'
experiment_link: 'https://icarus.ucdavis.edu/chambers/545/experiments/409'
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 14:06:21'
dataset_updated_at: '2020-11-18 03:05:47'
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
58167,58766,58467,-9999.000,-9999.000
58767,59366,59067,0.238,-0.021
59367,59966,59667,0.103,-0.021
59967,60566,60267,0.006,-0.017
60567,61166,60867,-0.008,0.026
61167,61766,61467,-0.001,0.025
61767,62366,62067,-9999.000,-9999.000
62367,62966,62667,-9999.000,-9999.000
62967,63566,63267,-9999.000,-9999.000
63567,64166,63867,-9999.000,-9999.000
64167,64766,64467,-9999.000,-9999.000
64767,65366,65067,-9999.000,-9999.000
65367,65966,65667,-9999.000,-9999.000
65967,66566,66267,-9999.000,-9999.000
66567,67166,66867,-9999.000,-9999.000
67167,67766,67467,-9999.000,-9999.000
67767,68366,68067,-9999.000,-9999.000
68367,68966,68667,-9999.000,-9999.000
68967,69566,69267,0.034,0.072
69567,70166,69867,0.042,0.078
70167,70766,70467,0.045,0.042
70767,71366,71067,0.040,0.112
71367,71966,71667,-0.057,0.262
71967,72566,72267,-0.019,0.282
72567,73166,72867,0.011,0.274
73167,73766,73467,-9999.000,-9999.000
73767,74366,74067,-0.066,0.341
74367,74966,74667,-0.011,0.294
74967,75566,75267,0.005,0.310
75567,76166,75867,-0.025,0.311
76167,76766,76467,-9999.000,-9999.000
76767,77366,77067,-0.035,0.283
77367,77966,77667,0.000,0.245
77967,78566,78267,-0.030,0.270
78567,79166,78867,-0.055,0.296
79167,79766,79467,-9999.000,-9999.000
79767,80366,80067,-0.034,0.283
80367,80966,80667,0.007,0.256
80967,81566,81267,-0.021,0.245
81567,82166,81867,-0.124,0.301
82167,82766,82467,0.042,0.167
82767,83366,83067,-0.005,0.212
83367,83966,83667,-0.009,0.218
83967,84566,84267,-0.016,0.206
84567,85166,84867,0.031,0.141
85167,85766,85467,0.038,0.134
85767,86366,86067,0.009,0.155
86367,86966,86667,0.004,0.169
86967,87566,87267,-0.055,0.211
87567,88166,87867,-9999.000,-9999.000
88167,88766,88467,-0.066,0.234
88767,89366,89067,-0.061,0.221
89367,89966,89667,0.003,0.156
89967,90566,90267,0.000,0.149
90567,91166,90867,-9999.000,-9999.000
91167,91766,91467,-0.050,0.226
91767,92366,92067,-0.057,0.232
92367,92966,92667,-0.029,0.188