Dataset
MOASA flight M324: airborne observations from the Clean Air project over London, UK
Update Frequency: Not Planned
Latest Data Update: 2023-04-17
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2023-09-19
Download Stats: last 12 months
Dataset Size: 38 Files | 45MB
Abstract
In-situ airborne observations collected during flight M324 on 14 March 2022 by the Clean Air instrument suite on board the Met Office Atmospheric Survey Aircraft (MOASA) for the MOASA Clean Air project.
This dataset contains in meteorological and situ atmospheric composition measurements (gaseous nitrogen dioxide, ozone, sulphur dioxide and fine mode (PM2.5) aerosol) over London, UK, in a city survey flight pattern as part of the Strategic Priorities Fund (SPF) Clean Air Programme Intense Observational Period. Quicklook plots are also included.
Full flight track and other MOASA flights can be seen via the CEDA Flight Finder tool linked to on this record.
Citable as: Met Office; Mynard, A. (2023): MOASA flight M324: airborne observations from the Clean Air project over London, UK. NERC EDS Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/93595f4627a1472595c1ebd740af669c/
Abbreviation: Not defined
Keywords: MOASA, aircraft, meteorology, Clean Air, Met Office, nitrogen dioxide, NO2, ozone, O3, sulphur dioxide, SO2, PM2.5, aerosol
Details
| Previous Info: |
No news update for this record
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No related previous identifiers.
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| Access rules: |
Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.
Use of these data is covered by the following licence(s): http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data were collected and processed by the project team at the Met Office and submitted to the Centre for Environmental Data Analysis (CEDA). |
| Data Quality: |
Data are as given by the data provider, no quality control has been performed by the Centre for Environmental Data Analysis (CEDA).
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| File Format: |
NetCDF format
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Related Documents
No documents related to this record were found.
Process overview
This dataset was generated by instruments deployed on platforms as listed below.
Instrument/Platform pairings
| Clear Air instruments on board the MOASA aircraft | Deployed on: Met Office Atmospheric Survey Aircraft (MOASA). |
Mobile platform operations
| Mobile Platform Operation 1 | MOASA flight M324 |
| Output Description | None |
- standard_name: relative_humidity
- units: %
- var_id: AIMMS_RH
- long_name: A_measurement_of_the_water_vapor_that_exists_in_a_mixture_of_air_and_water_vapor_measured_by_the_AIMMS
- standard_name: aerosol_angstrom_exponent
- units: Mm-1
- var_id: NEPH_ang_exp_final
- long_name: Angstrom_exponent_as_an_average_of_wavelength_pair_Angstrom_exponents_measured_by_the_Nephelometer.
- units: degree_Celsius
- var_id: TAP_case_temp
- standard_name: TAP_case_temp
- long_name: Case_temperature_for_the_TAP,_as_measured_by_TAP.
- units: Mm-1
- var_id: TAP_Virkkula_528
- standard_name: absorption_coefficient_green
- long_name: Corrected_(Virkkula_et_al,_2010)__green_(wavelength_=_528nm)_absorption_coefficient,_measured_by_TAP.
- units: Mm-1
- var_id: TAP_Virkkula_467
- standard_name: absorption_coefficient_blue
- long_name: Corrected_(Virkkula_et_al,_2010)_blue_(wavelength_=_467nm)_absorption_coefficient,_measured_by_TAP.
- units: Mm-1
- var_id: TAP_Virkkula_652
- standard_name: absorption_coefficient_red
- long_name: Corrected_(Virkkula_et_al,_2010)_red_(wavelength_=_652nm)_absorption_coefficient,_measured_by_TAP.
- units: μg m-3
- var_id: POPS_pm2p5
- standard_name: mass_concentration_of_dried_pm2p5_aerosol_in_air
- long_name: Mass_concentration_of_dried_pm2p5_aerosol_in_air_for_the_POPS_instrument
- var_id: NEPH_RH_flag
- standard_name: NEPH_RH_flag
- var_id: NEPH_cell_temperature_flag
- standard_name: NEPH_cell_temperature_flag
- var_id: NEPH_inlet_flag
- standard_name: NEPH_inlet_flag
- var_id: NEPH_pressure_flag
- standard_name: NEPH_pressure_flag
- var_id: NEPH_flow_flag
- standard_name: NEPH_sample_flow_flag
- var_id: NEPH_sample_temperature_flag
- standard_name: NEPH_sample_temperature_flag
- var_id: NO2_cell_pressure_flag
- standard_name: NO2_cell_pressure_flag
- var_id: NO2_cell_temperature_flag
- standard_name: NO2_cell_temperature_flag
- var_id: NO2_loss_flag
- standard_name: NO2_loss_flag
- var_id: O3_cell_pressure_flag
- standard_name: O3_cell_pressure_flag
- var_id: O3_cell_temperature_flag
- standard_name: O3_cell_temperature_flag
- var_id: O3_volumetric_flow_rate_flag
- standard_name: O3_volumetric_flow_rate_flag
- var_id: POPS_ambient_pressure_flag
- standard_name: POPS_ambient_pressure_flag
- var_id: POPS_bl_flag
- standard_name: POPS_bl_flag
- var_id: POPS_inlet_flag
- standard_name: POPS_inlet_flag
- var_id: POPS_laserdiode_temp_flag
- standard_name: POPS_laserdiode_temp_flag
- var_id: POPS_laserfb_flag
- standard_name: POPS_laserfb_flag
- var_id: POPS_ld_mon_flag
- standard_name: POPS_ld_mon_flag
- var_id: POPS_onboard_temp_flag
- standard_name: POPS_onboard_temp_flag
- var_id: POPS_pumpfb_flag
- standard_name: POPS_pumpfb_flag
- var_id: POPS_sample_flow_flag
- standard_name: POPS_sample_flow_flag
- var_id: SO2_flow_flag
- standard_name: SO2_flow_flag
- var_id: SO2_internal_temperature_flag
- standard_name: SO2_internal_temperature_flag
- var_id: SO2_pressure_flag
- standard_name: SO2_pressure_flag
- var_id: SO2_reaction_temperature_flag
- standard_name: SO2_reaction_temperature_flag
- units: degree_Celsius
- var_id: TAP_sample_air_temp
- standard_name: TAP_sample_air_temp
- long_name: Sample_flow_air_temperature_for_the_TAP,_as_measured_by_TAP.
- units: litre min-1
- var_id: TAP_sample_flow
- standard_name: TAP_sample_flow
- long_name: Sample_flow_for_the_TAP,_as_measured_by_TAP.
- var_id: TAP_case_temp_flag
- standard_name: TAP_case_temp_flag
- var_id: TAP_inlet_flag
- standard_name: TAP_inlet_flag
- var_id: TAP_sample_air_temp_flag
- standard_name: TAP_sample_air_temp_flag
- var_id: TAP_sample_flow_flag
- standard_name: TAP_sample_flow_flag
- var_id: TAP_Virkkula_467_flag
- standard_name: absorption_coefficient_blue_flag_
- var_id: TAP_Virkkula_528_flag
- standard_name: absorption_coefficient_green_flag
- var_id: TAP_Virkkula_652_flag
- standard_name: absorption_coefficient_red_flag
- var_id: NEPH_ang_exp_final_flag
- standard_name: aerosol_angstrom_exponent_flag
- var_id: POPS_particle_counts_flag
- standard_name: aerosol_particle_counts_flag
- standard_name: air_pressure_flag
- var_id: AIMMS_pressure_flag
- standard_name: air_temperature_flag
- var_id: AIMMS_temperature_flag
- units: m
- standard_name: altitude
- var_id: AIMMS_altitude
- long_name: aircraft_GPS_height_measured_by_the_AIMMS
- var_id: AIMMS_altitude_flag
- standard_name: altitude_flag
- units: hPa
- standard_name: air_pressure
- var_id: AIMMS_pressure
- long_name: ambient_air_pressure_measured_by_the_AIMMS
- units: K
- standard_name: air_temperature
- var_id: AIMMS_temperature
- long_name: ambient_air_temperature_measured_by_the_AIMMS
- units: hPa
- var_id: POPS_ambient_pressure
- standard_name: POPS_ambient_pressure
- long_name: ambient_pressure_as_measured_by_the_POPS_instrument
- units: degree
- var_id: AIMMS_sideslip_angle
- standard_name: sideslip_angle
- long_name: angle_of_sideslip_as_measured_by_the_AIMMS_instrument
- var_id: NEPH_bscat_b_flag
- standard_name: backscattering_blue_flag
- var_id: NEPH_bscat_g_flag
- standard_name: backscattering_green_flag
- var_id: NEPH_bscat_r_flag
- standard_name: backscattering_red_flag
- units: hPa
- var_id: NEPH_pressure
- standard_name: NEPH_pressure
- long_name: barometric_pressure_in_the_cell_measured_by_the_Nephelometer
- var_id: POPS_bl
- standard_name: POPS_bl
- long_name: baseline_of_the_detector_(raw_analog-to-digital_counts)_measured_by_the_POPS_instrument
- units: Mm-1
- var_id: NO2_manual_baseline
- standard_name: NO2_manual_baseline
- long_name: baseline_used_in_manual_concentration_calculation_of_NO2
- units: hPa
- var_id: NO2_cell_pressure
- standard_name: NO2_cell_pressure
- long_name: cell_pressure_measured_by_the_NO2_instrument
- units: K
- var_id: NO2_cell_temperature
- standard_name: NO2_cell_temperature
- long_name: cell_temperature_measured_by_the_NO2_instrument
- units: degree_Celsius
- var_id: NEPH_cell_temperature
- standard_name: NEPH_cell_temperature
- long_name: cell_temperature_measured_via_a_sensor_mounted_in_the_cell_wall_(near_the_light_source)_for_the_Nephelometer
- var_id: NO2_concentration_flag
- standard_name: concentration_of_nitrogen_dioxide_in_air_flag
- var_id: O3_concentration_flag
- standard_name: concentration_of_ozone_in_air_flag
- units: ppbv
- var_id: O3_concentration
- standard_name: concentration_of_ozone_in_air
- long_name: concentration_of_ozone_measured_by_the_ozone_instrument
- var_id: SO2_concentration_flag
- standard_name: concentration_of_sulfur_dioxide_in_air_flag
- units: ppbv
- var_id: SO2_concentration
- standard_name: concentration_of_sulfur_dioxide_in_air
- long_name: concentration_of_sulfur_dioxide_in_air_measured_by_the_SO2_instrument
- units: Mm-1
- var_id: NEPH_scat_b
- standard_name: forward_scattering_blue
- long_name: corrected_blue_(450nm)_scattering_(by_gas_and_particles,_with_dark_count_subtracted)_over_0_-_170_degrees,_smoothed_to_15s,_measured_by_the_Nephelometer
- units: Mm-1
- var_id: NEPH_scat_g
- standard_name: forward_scattering_green
- long_name: corrected_green_(525nm)_scattering_(by_gas_and_particles,_with_dark_count_subtracted)_over_0_-_170_degrees,_smoothed_to_15s,_measured_by_the_Nephelometer
- units: Mm-1
- var_id: NEPH_scat_r
- standard_name: forward_scattering_red
- long_name: corrected_red_(635nm)_scattering_(by_gas_and_particles,_with_dark_count_subtracted)_over_0_-_170_degrees,_smoothed_to_15s,_measured_by_the_Nephelometer
- var_id: AIMMS_wind_flow_E_flag
- standard_name: eastward_wind_flag
- var_id: POPS_laserfb
- standard_name: POPS_laserfb
- long_name: feedback_value_used_when_controlling_laser_power_using_PID_control_measured_by_the_POPS_instrument
- var_id: POPS_pumpfb
- standard_name: POPS_pumpfb
- long_name: feedback_value_used_when_controlling_pump_speed_using_PID_control_measured_by_the_POPS_instrument
- var_id: NEPH_scat_b_flag
- standard_name: forward_scattering_blue_flag
- var_id: NEPH_scat_g_flag
- standard_name: forward_scattering_green_flag
- var_id: NEPH_scat_r_flag
- standard_name: forward_scattering_red_flag
- units: degree_Celsius
- var_id: SO2_internal_temperature
- standard_name: SO2_internal_temperature
- long_name: internal_temperature_measured_by_the_SO2_instrument
- var_id: POPS_ld_mon
- standard_name: POPS_ld_mon
- long_name: laser_diode_output_power_monitor_measured_by_the_POPS_instrument
- units: Mm-1
- var_id: NO2_man_baseline_1
- standard_name: NO2_man_baseline_1
- long_name: manually_calculated_baseline_method_1_(for_the_NO2_instrument)
- units: Mm-1
- var_id: NO2_man_baseline_2
- standard_name: NO2_man_baseline_2
- long_name: manually_calculated_baseline_method_2_(for_the_NO2_instrument)
- var_id: NO2_concentration_ug_m3
- standard_name: mass_concentration_of_nitrogen_dioxide_in_air
- long_name: manually_calculated_nitrogen_dioxide_concentration_(with_manual_baseline_subtracted)_measured_by_the_NO2_instrument
- units: μg m-3
- var_id: NO2_concentration_ug_m3_flag
- standard_name: mass_concentration_of_nitrogen_dioxide_in_air_flag
- var_id: O3_concentration_ug_m3_flag
- standard_name: mass_concentration_of_ozone_in_air_flag
- standard_name: mass_concentration_of_ozone_in_air
- units: μg m-3
- var_id: O3_concentration_ug_m3
- long_name: mass_concentration_of_ozone_measured_by_the_ozone_instrument
- var_id: SO2_concentration_ug_m3_flag
- standard_name: mass_concentration_of_sulfur_dioxide_in_air_flag
- units: μg m-3
- var_id: SO2_concentration_ug_m3
- standard_name: mass_concentration_of_sulfur_dioxide_in_air
- long_name: mass_concentration_of_sulfur_dioxide_measured_by_the_SO2_instrument
- units: hPa
- var_id: O3_cell_pressure
- standard_name: O3_cell_pressure
- long_name: measurement-cell_pressure_measured_by_the_ozone_instrument
- units: degree_Celsius
- var_id: O3_cell_temperature
- standard_name: O3_cell_temperature
- long_name: measurement-cell_temperature_measured_by_the_ozone_instrument
- units: cm-3
- var_id: NO2_N
- standard_name: nitrogen_dioxide_molecular_number_density
- long_name: nitrogen_dioxide_molecular_number_density_calculated_at_sensor_pressure_and_temperature,_for_the_NO2_instrument
- var_id: AIMMS_wind_flow_N_flag
- standard_name: northward_wind_flag
- var_id: POPS_particle_concentration_flag
- standard_name: number_concentration_of_aerosol_flag
- units: cm-3
- var_id: POPS_particle_concentration
- standard_name: number_concentration_of_aerosol
- long_name: number_concentration_of_aerosol_measured_by_the_POPS_instrument
- units: counts
- var_id: POPS_size_spectra
- standard_name: dried_aerosol_size_spectra
- long_name: number_of_dried_particle_counts_per_bin_for_the_POPS_instrument
- units: degree_Celsius
- var_id: POPS_onboard_temp
- standard_name: POPS_onboard_temp
- long_name: on-board_temperature_measured_by_the_POPS_instrument
- var_id: POPS_particle_counts
- standard_name: aerosol_particle_counts
- long_name: particle_counts_measured_by_the_POPS_instrument
- units: counts s-1
- var_id: AIMMS_pitch_angle_flag
- standard_name: pitch_angle_flag
- var_id: POPS_pm2p5_flag
- standard_name: pm2p5_flag
- units: hPa
- var_id: SO2_pressure
- standard_name: SO2_pressure
- long_name: reaction_chamber_pressure_measured_by_the_SO2_instrument
- units: degree_Celsius
- var_id: SO2_reaction_temperature
- standard_name: SO2_reaction_temperature
- long_name: reaction_temperature_measured_by_the_SO2_instrument
- standard_name: relative_humidity_flag
- var_id: AIMMS_RH_flag
- units: Mm-1
- var_id: NO2_loss
- standard_name: NO2_loss
- long_name: resonator loss (with air Rayleigh scattering already subtracted and spikes removed) measured by the NO2 instrument
- var_id: AIMMS_roll_angle_flag
- standard_name: roll_angle_flag
- units: %
- var_id: NEPH_RH
- standard_name: NEPH_RH
- long_name: sample_air_relative_humidity_measured_by_the_Nephelometer
- units: degree_Celsius
- var_id: NEPH_sample_temperature
- standard_name: NEPH_sample_temperature
- long_name: sample_air_temperature_measured_by_the_Nephelometer
- units: litre min-1
- var_id: SO2_flow
- standard_name: SO2_flow
- long_name: sample_flow_measured_by_the_SO2_instrument
- var_id: NEPH_flow
- standard_name: NEPH_sample_flow
- long_name: sample_flow_rate_measured_by_the_Nephelometer
- units: litre min-1
- units: cm3 s-1
- var_id: POPS_sample_flow
- standard_name: POPS_sample_flow
- long_name: sample_flow_rate_measured_by_the_POPS_instrument
- units: Mm-1
- var_id: NEPH_Cscat_b
- standard_name: scattering_correction_blue
- long_name: scattering_corrections_applied_to_correct_raw_blue_scattering_data_measured_by_the_Nephelometer
- units: Mm-1
- var_id: NEPH_Cscat_g
- standard_name: scattering_correction_green
- long_name: scattering_corrections_applied_to_correct_raw_green_scattering_data_measured_by_the_Nephelometer
- units: Mm-1
- var_id: NEPH_Cscat_r
- standard_name: scattering_correction_red
- long_name: scattering_corrections_applied_to_correct_raw_red_scattering_data_measured_by_the_Nephelometer
- units: degree_Celsius
- var_id: POPS_laserdiode_temp
- standard_name: POPS_laserdiode_temp
- long_name: temperature_of_laser_diode_control_board_measured_by_the_POPS_instrument
- units: degree
- var_id: AIMMS_pitch_angle
- standard_name: pitch_angle
- long_name: the_angle_between_the_longitudinal_axis_of_the_aircraft_and_the_horizon_measured_by_the_AIMMS
- units: degree
- var_id: AIMMS_roll_angle
- standard_name: roll_angle
- long_name: the_rotation_about_the_longitudinal_axis_of_the_aircraft_measured_by_the_AIMMS
- var_id: time
- units: seconds
- long_name: the_time_the_measurement_was_taken
- var_id: AIMMS_TAS_flag
- standard_name: true_air_speed_flag
- units: m s-1
- var_id: AIMMS_TAS
- standard_name: true_air_speed
- long_name: true_air_speed_measured_by_the_AIMMS
- units: m s-1
- var_id: AIMMS_vertical_wind
- standard_name: downward_air_velocity
- long_name: vertical_wind_as_measured_by_the_AIMMS_instrument
- var_id: O3_volumetric_flow_rate
- standard_name: O3_volumetric_flow_rate
- long_name: volumetric_flow_rate_measured_by_the_ozone_instrument
- units: cm3 min-1
- units: degree
- standard_name: wind_from_direction
- var_id: AIMMS_wind_direction
- long_name: wind_direction_measured_by_the_AIMMS
- units: m s-1
- standard_name: eastward_wind
- var_id: AIMMS_wind_flow_E
- long_name: wind_flow_vector_east_component_measured_by_the_AIMMS
- units: m s-1
- standard_name: northward_wind
- var_id: AIMMS_wind_flow_N
- long_name: wind_flow_vector_north_component_measured_by_the_AIMMS
- var_id: AIMMS_wind_direction_flag
- standard_name: wind_from_direction_flag
- var_id: AIMMS_wind_speed_flag
- standard_name: wind_speed_flag
- units: m s-1
- standard_name: wind_speed
- var_id: AIMMS_wind_speed
- long_name: wind_speed_measured_by_the_AIMMS
- units: degree
- var_id: AIMMS_yaw_angle
- standard_name: yaw_angle
- long_name: yaw_angle_as_measured_by_the_AIMMS_instrument
Co-ordinate Variables
- standard_name: latitude
- units: degree north
- var_id: AIMMS_latitude
- long_name: aircraft_latitude_measured_by_the_AIMMS
- standard_name: longitude
- units: degree east
- var_id: AIMMS_longitude
- long_name: aircraft_longitude_measured_by_the_AIMMS
Coverage
Temporal Range
Start time:
2022-03-14T11:36:40
End time:
2022-03-14T14:00:02
Geographic Extent
51.7975° |
||
-1.9021° |
0.3877° |
|
50.7684° |
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