---
instrument_id: '350'
data_file_original_name: '20140110_OH.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Start_UTC'
    - 'Stop_UTC'
    - 'Mid_UTC'
    - 'OH_chem'
    - 'OH_interference'
dataset_id: '1116'
experiment_link: 'https://icarus.ucdavis.edu/chambers/545/experiments/396'
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 13:47:23'
dataset_updated_at: '2020-10-25 23:29:49'
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
61210,61809,61510,-9999.000,-9999.000
61810,62409,62110,0.010,-0.036
62410,63009,62710,-0.008,-0.017
63010,63609,63310,-9999.000,-9999.000
63610,64209,63910,-9999.000,-9999.000
64210,64809,64510,-9999.000,-9999.000
64810,65409,65110,-9999.000,-9999.000
65410,66009,65710,-9999.000,-9999.000
66010,66609,66310,-9999.000,-9999.000
66610,67209,66910,-9999.000,-9999.000
67210,67809,67510,0.315,0.042
67810,68409,68110,0.100,0.203
68410,69009,68710,0.214,0.147
69010,69609,69310,-0.275,0.437
69610,70209,69910,-0.033,0.574
70210,70809,70510,-0.159,0.483
70810,71409,71110,0.295,0.285
71410,72009,71710,-0.105,0.496
72010,72609,72310,0.012,0.548
72610,73209,72910,-0.209,0.540
73210,73809,73510,0.052,0.536
73810,74409,74110,-0.347,0.570
74410,75009,74710,-0.040,0.532
75010,75609,75310,-0.225,0.496
75610,76209,75910,0.104,0.364
76210,76809,76510,-0.104,0.355
76810,77409,77110,0.104,0.288
77410,78009,77710,-0.198,0.513
78010,78609,78310,0.275,0.277
78610,79209,78910,0.055,0.324
79210,79809,79510,-0.005,0.444
79810,80409,80110,0.112,0.310
80410,81009,80710,0.114,0.443
81010,81609,81310,0.091,0.336
81610,82209,81910,-0.053,0.422
82210,82809,82510,-0.031,0.350
82810,83409,83110,0.194,0.256
83410,84009,83710,0.150,0.274
84010,84609,84310,0.178,0.284
84610,85209,84910,0.148,0.243
85210,85809,85510,0.238,0.235
85810,86409,86110,0.032,0.368
86410,87009,86710,0.029,0.444
87010,87609,87310,0.133,0.358
87610,88209,87910,0.027,0.377
88210,88809,88510,0.112,0.153
88810,89409,89110,0.115,0.061
89410,90009,89710,0.061,0.090