File format description

All MWRpy files use NETCDF4_CLASSIC data model, i.e., HDF5 file format.

Dimensions

Name
time
bnds
frequency
ir_wavelength
receiver_nb
t_amb_nb
height

Variables (common to all files)

Name	Long name	Dimensions	Units	Data type	Standard name
time	Time (UTC) of the measurement	time	seconds since 1970-01-01 00:00:00.000	float64	time
time_bnds	Start and end time (UTC) of the measurements	time, bnds	seconds since 1970-01-01 00:00:00.000	int32
latitude	Latitude of measurement station	time	degree_north	float32	latitude
longitude	Longitude of measurement station	time	degree_east	float32	longitude
altitude	Altitude above mean sea level of measurement station	time	m	float32	altitude

MWR-Level 1 files

1C01 file

The Level 1 default file type 1C01 contains all variables from the file types 1B01, 1B11 (if an infrared radiometer is available), and 1B21 (if a weather station is available).

Variables (MWR_1B01 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
azimuth_angle	Azimuth angle	time	degree	float32	sensor_azimuth_angle
elevation_angle	Elevation angle	time	degree	float32	sensor_elevation_angle
tb	Microwave brightness temperature	time, frequency	K	float32	brightness_temperature
frequency	Nominal centre frequency of microwave channels	frequency	GHz	float32
frequency_shift	Frequency shift of the microwave channels	frequency	GHz	float32
bandwidth	Bandwidth of microwave channels	frequency	GHz	float32
receiver	Corresponding microwave receiver for each channel	frequency	1	int32
receiver_nb	Microwave receiver number	receiver_nb	1	int32
n_sidebands	Number of sidebands	receiver_nb	1	int32
sideband_IF_separation	Sideband IF separation	frequency	1	float32
t_amb	Ambient target temperature	time, t_amb_nb	K	float32
t_rec	Receiver physical temperature	time, receiver_nb	K	float32
t_sta	Receiver temperature stability	time, receiver_nb	K	float32
pointing_flag	Pointing flag	time	1	int32
quality_flag	Quality flag	time, frequency	1	int32
quality_flag_status	Quality flag status	time, frequency	1	int32
liquid_cloud_flag	Liquid cloud flag	time	1	int32
liquid_cloud_flag_status	Liquid cloud flag status	time	1	int32

Variables (MWR_1B11 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
ir_azimuth_angle	Infrared sensor azimuth angle	time	degree	float32	sensor_azimuth_angle
ir_elevation_angle	Infrared sensor elevation angle	time	degree	float32	sensor_elevation_angle
irt	Infrared brightness temperatures	time, ir_wavelength	K	float32
ir_wavelength	Wavelength of infrared channels	ir_wavelength	m	float32	sensor_band_central_radiation_wavelength
ir_bandwidth	Bandwidth of infrared channels		m	float32
ir_beamwidth	Beam width of the infrared radiometer		degree	float32

Variables (MWR_1B21 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
air_temperature	Air temperature	time	K	float32	air_temperature
relative_humidity	Relative humidity	time	1	float32	relative_humidity
air_pressure	Air pressure	time	Pa	float32	air_pressure
rainfall_rate	Rainfall rate	time	m s-1	float32	rainfall_rate
wind_speed	Wind speed	time	m s-1	float32	wind_speed
wind_direction	Wind direction	time	degree	float32	wind_from_direction
met_quality_flag	Meteorological data quality flag	time	1	int32

MWR-Level 2 files

Variables (common to all Level 2 files)

Name	Long name	Dimensions	Units	Data type	Standard name
azimuth_angle	Azimuth angle	time	degree	float32	sensor_azimuth_angle
elevation_angle	Elevation angle	time	degree	float32	sensor_elevation_angle

Single pointing file

The Level 2 default file type single contains all variables from the file types 2I01, 2I02, 2I06, 2P01, and 2P03 (if the respective retrieval coefficients are available).

Variables (MWR_2I01 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
lwp	Liquid water path	time	kg m-2	float32	atmosphere_cloud_liquid_water_content
lwp_offset	Subtracted offset correction of liquid water path	time	kg m-2	float32
lwp_quality_flag	Liquid water path quality flag	time	1	int32
lwp_quality_flag_status	Liquid water path quality flag status	time	1	int32

Variables (MWR_2I02 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
iwv	Integrated water vapour	time	kg m-2	float32	atmosphere_mass_content_of_water_vapor
iwv_quality_flag	Integrated water vapour quality flag	time	1	int32
iwv_quality_flag_status	Integrated water vapour quality flag status	time	1	int32

Variables (MWR_2I06 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
lifted_index	Lifted index	time	K	float32
ko_index	KO index	time	K	float32
total_totals	Total totals index	time	K	float32
k_index	K index	time	K	float32
showalter_index	Showalter index	time	K	float32
cape	Convective available potential energy	time	J kg-1	float32
stability_quality_flag	Quality flag for stability products	time	1	int32
stability_quality_flag_status	Quality flag status for stability products	time	1	int32

Variable (common to all 2PXX files)

Name	Long name	Dimensions	Units	Data type	Standard name
height	Height above mean sea level	height	m	float32	height_above_mean_sea_level

Variables (MWR_2P01 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
temperature	Temperature	time, height	K	float32	air_temperature
temperature_quality_flag	Temperature quality flag	time	1	int32
temperature_quality_flag_status	Temperature quality flag status	time	1	int32

Variables (MWR_2P03 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
absolute_humidity	Absolute humidity	time, height	kg m-3	float32
absolute_humidity_quality_flag	Absolute humidity quality flag	time	1	int32
absolute_humidity_quality_flag_status	Absolute humidity quality flag status	time	1	int32

Multiple pointing file

The Level 2 default file type multi contains all variables from the file types 2P02, 2P04, 2P07, and 2P08 (if the respective retrieval coefficients are available).

Variables (MWR_2P02 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
temperature	Temperature	time, height	K	float32	air_temperature
temperature_quality_flag	Temperature quality flag	time	1	int32
temperature_quality_flag_status	Temperature quality flag status	time	1	int32

Variables (MWR_2P04 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
relative_humidity	Relative humidity	time, height	1	float32	relative_humidity

Variables (MWR_2P07 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
potential_temperature	Potential temperature	time, height	K	float32	air_potential_temperature

Variables (MWR_2P08 specific)

Name	Long name	Dimensions	Units	Data type	Standard name
equivalent_potential_temperature	Equivalent potential temperature	time, height	K	float32	air_equivalent_potential_temperature