Level_2BC_Rayleigh_HLOSWind_MDSR_02_00

binary record "Level_2BC_Rayleigh_HLOSWind_MDSR_02_00"size: 50
idfield namedefinition
0wind_result_id
binary uint32size: 4
unique L2B Mie wind result identification number for this L2B file
1start_of_obs_datetime
binary timesize: 12
Date and time of the first measurement used to compose the accumulated signals used to retrieve this wind result

unit: "s since 2000-01-01"

value: float(./days) * 86400 + float(./seconds) + float(./microseconds) / 1000000
binary recordsize: 12
ENVISAT binary datetime

idfield namedefinition
0days
binary int32size: 4
days since January 1st, 2000 (may be negative)

unit: "days since 2000-01-01"
1seconds
binary uint32size: 4
seconds since start of day

unit: "s"
2microseconds
binary uint32size: 4
microseconds since start of second

unit: "1e-6 s"
2windresult
binary recordsize: 29
structure containing the wind retrieval result associated to the current Rayleigh accumulation for a given group and classification

idfield namedefinition
0which_range_bin
binary uint8size: 1
Defines whether this observation was classified as cloud, no cloud
1observation_type
binary uint8size: 1
Remember if this was a cloud or no-cloud profile (or any other type we define)
2validity_flag
binary uint8size: 1
Validity flag (1 or TRUE = valid, 0 or FALSE = invalid) attached to the reported wind velocity. Details on the reasons why a result is invalid can be found in the l2b mie wind pcd - ads dataset.
3rayleigh_wind_velocity
binary int16size: 2
Wind velocity given in cm/s and rounded to the nearest integer.

unit: "cm/s"
4rayleigh_wind_to_pressure
binary int16size: 2
First-order derivative of the HLOS wind with respect to the pressure inside the sensing volume. This parameter may be used to correct the reported HLOS wind from pressure modifications brought by the assimilation.

unit: "10^-6 m/s/Pa"
5rayleigh_wind_to_temperature
binary int16size: 2
First-order derivative of the HLOS wind with respect to the temperature inside the sensing volume. This parameter may be used to correct the reported HLOS wind from temperature modifications brought by the assimilation.

unit: "cm/s/K"
6rayleigh_wind_to_backscatter_ratio
binary int16size: 2
First-order derivative of the HLOS wind with respect to the backscattering ratio inside the sensing volume. This parameter may be used to correct the reported HLOS wind if the reference backscatter ratio is modified.

unit: "cm/s"
7reference_pressure
binary uint32size: 4
Reference pressure used for inverting the Rayleigh response into an HLOS wind. This pressure information is taken from the numerical weather prediction model.

unit: "Pa"
8reference_temperature
binary uint16size: 2
Reference temperature used for inverting the Rayleigh response into an HLOS wind. This temperature information is taken from the numerical weather prediction model.

unit: "10^-2 K"
9reference_backscatter_ratio
binary uint32size: 4
Reference backscatter ratio used for inverting the Rayleigh response measured by the lidar.

unit: "10^-6"
10integration_length
binary uint32size: 4
Integration length for the reported Rayleigh wind.

unit: "m"
11n_meas_in_class
binary uint16size: 2
Number of measurements used to construct the accumulation used to derive the current Rayleigh wind result
12spare
binary bytessize: 2
Spare

hidden: true
3spare
binary bytessize: 5
Spare

hidden: true