Level_2A_AEL_PRO_Opt_MDSR_03_13

binary record ""

field name

definition

starttime

binary time

size: 12

Start date and time of the AEL-PRO profile covered by the present DSR. This is the centroid time of the first measurement of the profile.

unit: "s since 2000-01-01"

value: float(./days) * 86400 + float(./seconds) + float(./microseconds) / 1000000

binary record size: 12

ENVISAT binary datetime

id field name definition

0 days

binary int32 size: 4

days since January 1st, 2000 (may be negative)

unit: "days since 2000-01-01"

1 seconds

binary uint32 size: 4

seconds since start of day

unit: "s"

2 microseconds

binary uint32 size: 4

microseconds since start of second

unit: "1e-6 s"

measurement_ael_pro_optical_properties

binary array[dim_0]

dim_0: $num_meas_max_brc

binary record size: 616

Structure containing AEL-PRO products for the measurements of the BRC in the Mie bins

id field name definition

0 tropopause_altitude

binary double size: 8

Tropopause altitude estimates using the CALIPSO method

unit: "m"

1 retrieved_lidar_calibration_constant

binary double size: 8

Estimated Lidar calibration constant

unit: "ACCD_counts m^2 sr"

2 height_bin_ael_pro_optical_properties

binary array[24] size: 600

binary record size: 25

Structure containing AEL-PRO products for the Mie bins

id field name definition

0 extinction

binary double size: 8

Particle extinction coefficient of the height bin. Missing value: -1e+06.

unit: "10^-6 m^-1"

1 lr

binary double size: 8

Particle lidar ratio. Missing value: -1.

unit: "sr"

2 particle_effective_area_radius

binary double size: 8

Particle effective area radius: Missing value: -1

unit: "microns"

3 classification

binary int8 size: 1

Possible settings: 1: Water cloud 2: Ice cloud 3: Aerosol 0: Clear sky -3: Surface -2: Attenuated