Table 11.
List of attributes in the files originating from the off-axis integrated cavity output spectroscopy instrument in the ARM container, and archived on the ARM Data Archive.
| Variable | Definition |
|---|---|
| time | Date and Time of measurement in Coordinated Universal Time. |
| base_time | Base time (“2019-10-11 00:00:00” in our case). |
| time_offset | Time offset from base time. |
| seconds_after_calibration | Seconds after calibration. |
| co | Carbon monoxide mixing ratio calculated with nominal sensitivity correction in parts per million. |
| qc_co | Quality control flag. This field contains bit packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits (see file mosaoscoM1.b1.20191011.004433.header.txt for a full description); a value of 0 (no bits set) indicates the data has not failed any QC tests. |
| n2o | Nitrous oxide mixing ratio calculated with nominal sensitivity correction in parts per million. |
| qc_n2o | Quality control flag. This field contains bit packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits (see file mosaoscoM1.b1.20191011.004433.header.txt for a full description); a value of 0 (no bits set) indicates the data has not failed any QC tests. |
| h2o | Water vapor mixing ratio calculated with nominal sensitivity correction in parts per million. |
| qc_h2o | Quality control flag. This field contains bit packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits (see file mosaoscoM1.b1.20191011.004433.header.txt for a full description); a value of 0 (no bits set) indicates the data has not failed any QC tests. |
| co_dry | Carbon monoxide mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction in parts per million. |
| qc_co_dry | Quality control flag. This field contains bit packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits (see file mosaoscoM1.b1.20191011.004433.header.txt for a full description); a value of 0 (no bits set) indicates the data has not failed any QC tests. |
| n2o_dry | Nitrous oxide mixing ratio corrected for water vapor concentration and calculated with nominal sensitivity correction in parts per million. |
| qc_n2o_dry | Quality control flag. This field contains bit packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits (see file mosaoscoM1.b1.20191011.004433.header.txt for a full description); a value of 0 (no bits set) indicates the data has not failed any QC tests. |
| gas_pressure | Cell sample pressure in torr. |
| gas_temperature | Cell sample temperature in degrees Celsius. |
| ambient_temperature | Ambient temperature of instrument in degrees Celsius. |
| set_point_for_MFC_1 | Set point for mass flow controller 1 in cm3/min. |
| mass_flow_through_MFC_1 | Actual mass flow through mass flow controller 1 in cm3/min. |
| valve_position_MFC_1 | Valve position for mass flow controller 1 (0 for open, 1 for closed, −1 for error). |
| set_point_for_MFC_2 | Set point for mass flow controller 2 in cm3/min. |
| mass_flow_through_MFC_2 | Actual mass flow through mass flow controller 2 in cm3/min. |
| valve_position_MFC_2 | Valve position for mass flow controller 2 (0 for open, 1 for closed, −1 for error). |