---
instrument_id: '350'
data_file_original_name: '20140107_OH.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Start_UTC'
    - 'Stop_UTC'
    - 'Mid_UTC'
    - 'OH_chem'
    - 'OH_interference'
dataset_id: '1082'
experiment_link: 'https://icarus.ucdavis.edu/chambers/545/experiments/398'
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 12:57:25'
dataset_updated_at: '2020-11-06 01:59:58'
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
18936,19535,19236,-9999.000,-9999.000
19536,20135,19836,-0.029,0.120
20136,20735,20436,0.005,0.096
20736,21335,21036,-9999.000,-9999.000
21336,21935,21636,-9999.000,-9999.000
21936,22535,22236,-0.013,0.082
22536,23135,22836,-0.018,0.080
23136,23735,23436,0.002,0.065
23736,24335,24036,0.004,0.059
24336,24935,24636,0.016,0.045
24936,25535,25236,-0.002,0.052
25536,26135,25836,0.025,0.096
26136,26735,26436,-0.026,0.142
26736,27335,27036,0.014,0.104
27336,27935,27636,0.045,0.093
27936,28535,28236,-9999.000,-9999.000
28536,29135,28836,-9999.000,-9999.000
29136,29735,29436,-9999.000,-9999.000
29736,30335,30036,-9999.000,-9999.000
30336,30935,30636,-9999.000,-9999.000
30936,31535,31236,-9999.000,-9999.000
31536,32135,31836,-9999.000,-9999.000
32136,32735,32436,-9999.000,-9999.000
32736,33335,33036,-9999.000,-9999.000
33336,33935,33636,-9999.000,-9999.000
33936,34535,34236,-9999.000,-9999.000
34536,35135,34836,-9999.000,-9999.000
35136,35735,35436,-9999.000,-9999.000
35736,36335,36036,-9999.000,-9999.000
36336,36935,36636,-9999.000,-9999.000
36936,37535,37236,-9999.000,-9999.000
37536,38135,37836,-9999.000,-9999.000
38136,38735,38436,-9999.000,-9999.000
38736,39335,39036,-9999.000,-9999.000
39336,39935,39636,-9999.000,-9999.000
39936,40535,40236,-9999.000,-9999.000
40536,41135,40836,-9999.000,-9999.000
41136,41735,41436,-9999.000,-9999.000
41736,42335,42036,-9999.000,-9999.000
42336,42935,42636,-9999.000,-9999.000
42936,43535,43236,-9999.000,-9999.000
43536,44135,43836,-9999.000,-9999.000
44136,44735,44436,-9999.000,-9999.000
44736,45335,45036,-9999.000,-9999.000
45336,45935,45636,-9999.000,-9999.000
45936,46535,46236,-9999.000,-9999.000
46536,47135,46836,-9999.000,-9999.000
47136,47735,47436,-9999.000,-9999.000
47736,48335,48036,-9999.000,-9999.000
48336,48935,48636,-9999.000,-9999.000
48936,49535,49236,-9999.000,-9999.000
49536,50135,49836,-9999.000,-9999.000
50136,50735,50436,-9999.000,-9999.000
50736,51335,51036,-9999.000,-9999.000
51336,51935,51636,-9999.000,-9999.000
51936,52535,52236,-9999.000,-9999.000
52536,53135,52836,-9999.000,-9999.000
53136,53735,53436,-9999.000,-9999.000
53736,54335,54036,-9999.000,-9999.000
54336,54935,54636,-9999.000,-9999.000
54936,55535,55236,-9999.000,-9999.000
55536,56135,55836,-9999.000,-9999.000
56136,56735,56436,-9999.000,-9999.000
56736,57335,57036,-9999.000,-9999.000
57336,57935,57636,-9999.000,-9999.000
57936,58535,58236,-9999.000,-9999.000
58536,59135,58836,-9999.000,-9999.000
59136,59735,59436,-9999.000,-9999.000
59736,60335,60036,-9999.000,-9999.000
60336,60935,60636,-9999.000,-9999.000
60936,61535,61236,-9999.000,-9999.000
61536,62135,61836,-9999.000,-9999.000
62136,62735,62436,-9999.000,-9999.000
62736,63335,63036,-9999.000,-9999.000
63336,63935,63636,-9999.000,-9999.000
63936,64535,64236,-9999.000,-9999.000
64536,65135,64836,0.031,0.287
65136,65735,65436,-0.028,0.331
65736,66335,66036,0.028,0.318
66336,66935,66636,-0.002,0.368
66936,67535,67236,0.047,0.276
67536,68135,67836,-0.047,0.347
68136,68735,68436,-0.005,0.282
68736,69335,69036,0.015,0.259
69336,69935,69636,-0.073,0.263
69936,70535,70236,-0.028,0.177
70536,71135,70836,0.003,0.147
71136,71735,71436,0.014,0.136
71736,72335,72036,-0.019,0.214
72336,72935,72636,-0.005,0.211
72936,73535,73236,0.053,0.292
73536,74135,73836,0.258,0.729
74136,74735,74436,0.189,0.862
74736,75335,75036,0.122,0.845
75336,75935,75636,0.186,0.820
75936,76535,76236,0.626,0.895
76536,77135,76836,0.644,0.797
77136,77735,77436,0.299,0.852
77736,78335,78036,0.249,0.834
78336,78935,78636,0.195,0.794
78936,79535,79236,0.174,0.786
79536,80135,79836,0.175,0.747
80136,80735,80436,0.176,0.751
80736,81335,81036,0.197,0.673
81336,81935,81636,0.138,0.765
81936,82535,82236,0.020,1.304
82536,83135,82836,-0.035,1.857
83136,83735,83436,0.085,1.750
83736,84335,84036,0.074,1.706
84336,84935,84636,-0.064,1.666
84936,85535,85236,0.121,1.546