---
instrument_id: '350'
data_file_original_name: '20140130_OH.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Start_UTC'
    - 'Stop_UTC'
    - 'Mid_UTC'
    - 'OH_chem'
    - 'OH_interference'
dataset_id: '1308'
experiment_link: 'https://icarus.ucdavis.edu/chambers/545/experiments/410'
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 14:07:27'
dataset_updated_at: '2020-10-08 00:36:17'
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
58945,59544,59245,-9999.000,-9999.000
59545,60144,59845,-0.018,-0.008
60145,60744,60445,-0.004,-0.026
60745,61344,61045,0.014,-0.048
61345,61944,61645,0.014,-0.048
61945,62544,62245,-9999.000,-9999.000
62545,63144,62845,-9999.000,-9999.000
63145,63744,63445,-9999.000,-9999.000
63745,64344,64045,-9999.000,-9999.000
64345,64944,64645,-9999.000,-9999.000
64945,65544,65245,-9999.000,-9999.000
65545,66144,65845,-9999.000,-9999.000
66145,66744,66445,-9999.000,-9999.000
66745,67344,67045,-9999.000,-9999.000
67345,67944,67645,-9999.000,-9999.000
67945,68544,68245,-9999.000,-9999.000
68545,69144,68845,-9999.000,-9999.000
69145,69744,69445,-9999.000,-9999.000
69745,70344,70045,-9999.000,-9999.000
70345,70944,70645,-9999.000,-9999.000
70945,71544,71245,-9999.000,-9999.000
71545,72144,71845,-9999.000,-9999.000
72145,72744,72445,-9999.000,-9999.000
72745,73344,73045,-9999.000,-9999.000
73345,73944,73645,-9999.000,-9999.000
73945,74544,74245,-0.001,-0.014
74545,75144,74845,-0.041,0.007
75145,75744,75445,-0.006,-0.004
75745,76344,76045,0.030,-0.024
76345,76944,76645,0.022,-0.032
76945,77544,77245,0.029,-0.031
77545,78144,77845,0.034,-0.039
78145,78744,78445,-0.005,-0.004
78745,79344,79045,0.021,-0.025
79345,79944,79645,0.045,0.004
79945,80544,80245,0.071,0.010
80545,81144,80845,0.013,0.026
81145,81744,81445,0.063,0.372
81745,82344,82045,0.161,0.449
82345,82944,82645,0.206,0.472
82945,83544,83245,0.121,0.531
83545,84144,83845,0.118,0.511
84145,84744,84445,0.132,0.419
84745,85344,85045,0.129,0.429
85345,85944,85645,0.141,0.417
85945,86544,86245,0.146,0.381
86545,87144,86845,0.110,0.386
87145,87744,87445,0.126,0.361
87745,88344,88045,0.127,0.361
88345,88944,88645,0.096,0.361
88945,89544,89245,0.053,0.355
89545,90144,89845,0.007,0.363
90145,90744,90445,0.011,0.330
90745,91344,91045,-0.019,0.449
91345,91944,91645,0.776,0.763
91945,92544,92245,0.657,0.964
92545,93144,92845,0.576,0.960
93145,93744,93445,0.523,0.962
93745,94344,94045,0.508,0.909
94345,94944,94645,0.545,0.823
94945,95544,95245,0.034,0.868
95545,96144,95845,0.035,0.866