JAXA Level 2 (L2) Standard Products

Data Access

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Version History

Version Date Update Release Note
vBa 2025/12/1 Start of data provision PDF
vBb 2026/5/18 ・Improved cloud mask, cloud particle type, cloud particle category, and cloud microphysical properties
・Added variables (quality flags for CPR_ECO and ATL_CLA, MSI optical thickness)
・Revised variable names		 PDF

Input Data

CPR_ECO
CPR_CLP
ATL_CLA
MSI_CLP
AUX_3MH

Dimension

Name Number of Pixels Description
nray 5000 number of ray
nbin 200 number of bin

Variables

ScienceData
Variable Name Units Description/Attributes Dimention Type
Data   　 　 　
cloud_mask_cpr_atlid_msi_1km - CPR-ATLID-MSI cloud mask (1km)
0: clear, 1: cloud
attribute
 nray, nbin int
cloud_mask_cpr_atlid_msi_10km - CPR-ATLID-MSI cloud mask(10km)
0: clear, 1: cloud
attribute
 nray, nbin int
radar_lidar_flag_10km - CPR-ATLID mask flag (10km)
-1: non-cloud echo (smoke possible), 1: CPR only, 2: ATLID only, 3: CPR and ATLID
attribute
 nray, nbin int
radar_lidar_flag_1km - CPR-ATLID mask flag (1km)
-1: non-cloud echo (smoke possible), 1: CPR only, 2: ATLID only, 3: CPR and ATLID
attribute
 nray, nbin int
cloud_particle_type_cpr_atlid_msi_10km - CPR-ATLID-MSI cloud particle type (10km)
0: clear, 1: warm water, 2: supercooled water, 3: 3D ice, 4: 2D plate, 5: mixture of 3D ice and 2D plate, 6:liquid drizzle, 7: mixed-phase drizzle, 8: rain, 9: snow, 10: water + liquid drizzle, 11: water + rain, 12: mixed-phase, 13: unknown, 14: melting layer, 15: non-cloud echo 1 (insects etc), 16: fully attenuated (CPR and ATLID), 17: non-cloud echo 2 (smoke possible)
attribute
 nray, nbin int
cloud_particle_type_cpr_atlid_msi_1km - CPR-ATLID-MSI cloud particle type (1km)
0: clear, 1: warm water, 2: supercooled water, 3: 3D ice, 4: 2D plate, 5: mixture of 3D ice and 2D plate, 6:liquid drizzle, 7: mixed-phase drizzle, 8: rain, 9: snow, 10: water + liquid drizzle, 11: water + rain, 12: mixed-phase, 13: unknown, 14: melting layer, 15: non-cloud echo 1 (insects etc), 16: fully attenuated (CPR and ATLID), 17: non-cloud echo 2 (smoke possible)
attribute
 nray, nbin int
cloud_particle_category_cpr_atlid_msi_10km - CPR-ATLID-MSI cloud particle habit categories (10km)
-9: not assigned, 0:clear, 1: 2D plates, 2: 2D columns, 3: bullet rosette/3D types (bullets/bullet rosettes, 3D aggregate category), 4: Droxtals, 5: 2-D and 3-D Voronois, 6: supercooled water, 7: warm water, 8: liquid drizzle, 9: rain, 10: water + liquid drizzle, 11: water + rain, 12: unknown
attribute
 nray, nbin int
cloud_particle_category_cpr_atlid_msi_1km - CPR-ATLID-MSI cloud particle habit categories (1km)
-9: not assigned, 0:clear, 1: 2D plates, 2: 2D columns, 3: bullet rosette/3D types (bullets/bullet rosettes, 3D aggregate category), 4: Droxtals, 5: 2-D and 3-D Voronois, 6: supercooled water, 7: warm water, 8: liquid drizzle, 9: rain, 10: water + liquid drizzle, 11: water + rain, 12: unknown
attribute
 nray, nbin int
ice_effective_radius_10km um total ice effective radius (10km)
attribute
 nray, nbin float
ice_effective_radius_1km um total ice effective radius (1km)
attribute
 nray, nbin float
water_effective_radius_10km um total liquid effective radius (10km)
attribute
 nray, nbin float
water_effective_radius_1km um total liquid effective radius (1km)
attribute
 nray, nbin float
ice_water_content_10km g/m^3 total ice water content (10km)
attribute
 nray, nbin float
ice_water_content_1km g/m^3 total ice water content (1km)
attribute
 nray, nbin float
liquid_water_content_10km g/m^3 total liquid water content (10km)
attribute
 nray, nbin float
liquid_water_content_1km g/m^3 total liquid water content (1km)
attribute
 nray, nbin float
total_cloud_ice_number_concentration_10km 1/m^3 total ice number concentration (10km)
attribute
 nray, nbin float
total_cloud_ice_number_concentration_1km 1/m^3 total ice number concentration (1km)
attribute
 nray, nbin float
total_cloud_water_number_concentration_10km 1/m^3 total liquid number concentration (10km)
attribute
 nray, nbin float
total_cloud_water_number_concentration_1km 1/m^3 total liquid number concentration (1km)
attribute
 nray, nbin float
total_cloud_terminal_velocity_10km m/s total cloud particle terminal velocity (10km)
attribute
 nray, nbin float
total_cloud_terminal_velocity_1km m/s total cloud particle terminal velocity (1km)
attribute
 nray, nbin float
cloud_air_velocity_10km m/s vertical airmotion (10km)
attribute
 nray, nbin float
cloud_air_velocity_1km m/s vertical airmotion (1km)
attribute
 nray, nbin float
cloud_effective_radius1_10km um effective radius (cloud particle 1) (10km)
attribute
 nray, nbin float
cloud_effective_radius1_1km um effective radius (cloud particle 1) (1km)
attribute
 nray, nbin float
cloud_effective_radius2_10km um effective radius (cloud particle 2) (10km)
attribute
 nray, nbin float
cloud_effective_radius2_1km um effective radius (cloud particle 2) (1km)
attribute
 nray, nbin float
cloud_water_content1_10km g/m^3 liquid water content or ice water content (cloud particle 1) (10km)
attribute
 nray, nbin float
cloud_water_content1_1km g/m^3 liquid water content or ice water content (cloud particle 1) (1km)
attribute
 nray, nbin float
cloud_water_content2_10km g/m^3 liquid water content or ice water content (cloud particle 2) (10km)
attribute
 nray, nbin float
cloud_water_content2_1km g/m^3 liquid water content or ice water content (cloud particle 2) (1km)
attribute
 nray, nbin float
cloud_phase1_10km - cloud phase (cloud particle 1) (10km)
1: liquid phase, 2: ice phase
attribute
 nray, nbin int
cloud_phase1_1km - cloud phase (cloud particle 1) (1km)
1: liquid phase, 2: ice phase
attribute
 nray, nbin int
cloud_phase2_10km - cloud phase (cloud particle 2) (10km)
1: liquid phase, 2: ice phase
attribute
 nray, nbin int
cloud_phase2_1km - cloud phase (cloud particle 2) (1km)
1: liquid phase, 2: ice phase
attribute
 nray, nbin int
cloud_number_concentration1_10km 1/m^3 number concentration (cloud particle 1) (10km)
attribute
 nray, nbin float
cloud_number_concentration1_1km 1/m^3 number concentration (cloud particle 1) (1km)
attribute
 nray, nbin float
cloud_number_concentration2_10km 1/m^3 number concentration (cloud particle 2)(10km)
attribute
 nray, nbin float
cloud_number_concentration2_1km 1/m^3 number concentration (cloud particle 2) (1km)
attribute
 nray, nbin float
cloud_terminal_velocity1_10km m/s terminal velcocity (cloud particle 1)(10km)
attribute
 nray, nbin float
cloud_terminal_velocity1_1km m/s terminal velcocity (cloud particle 1) (1km)
attribute
 nray, nbin float
cloud_terminal_velocity2_10km m/s terminal velcocity (cloud particle 2)(10km)
attribute
 nray, nbin float
cloud_terminal_velocity2_1km m/s terminal velcocity (cloud particle 2) (1km)
attribute
 nray, nbin float
ice_water_path_10km g/m^2 ice water path (10km)
attribute
 nray float
ice_water_path_1km g/m^2 ice water path (1km)
attribute
 nray float
liquid_water_path_10km g/m^2 liquid water path (10km)
attribute
 nray float
liquid_water_path_1km g/m^2 liquid water path (1km)
attribute
 nray float
optical_thickness_10km - optical thickness (10km)
attribute
 nray float
optical_thickness_1km - optical thickness (1km)
attribute
 nray float
cloud_radar_reflectivity_10km dBZe attenuted radar reflectivity factor after cloud mask (10km) (CPR_L2a_ECO: jsg_radar_reflectivity_1km_with_correction: Both clutter and ganeous attenuation are corrected)
attribute
 nray, nbin float
cloud_radar_reflectivity_1km dBZe attenuated radar reflectivity factor after cloud mask (1km) (CPR_L2a_ECO: jsg_radar_reflectivity_1km_with_correction: Both clutter and ganeous attenuation are corrected)
attribute
 nray, nbin float
cloud_doppler_velocity_10km m/s Bias corrected Doppler Velocity after cloud mask (10km) (CPR_L2a_ECO: jsg_doppler_velocity_1km_with_correction_bias_corr)
attribute
 nray, nbin float
cloud_doppler_velocity_1km m/s cloud masked JSG Bias corrected Doppler Velocity (1km) (CPR_L2a_ECO: jsg_doppler_velocity_1km_with_correction_bias_corr)
attribute
 nray, nbin float
cloud_gasattenuation_1km dBZe integrated_gaseous_attenuation ) (1km) (CPR_L2a_ECO)
attribute
 nray, nbin float
attenuated_backscatter_10km /m/sr attenuated backscatter (parallel + perpendicular) (10km)
attribute
 nray, nbin float
attenuated_backscatter_1km /m/sr attenuated backscatter (parallel + perpendicular) (1km)
attribute
 nray, nbin float
crosspolar_attenuated_backscatter_10km /m/sr attenuated backscatter (perpendicular) (10km)
attribute
 nray, nbin float
crosspolar_attenuated_backscatter_1km /m/sr attenuated backscatter (perpendicular) (1km)
attribute
 nray, nbin float
volume_depolarization_ratio_10km % volume depolarization ratio (10km)
attribute
 nray, nbin float
volume_depolarization_ratio_1km % volume depolarization ratio (1km)
attribute
 nray, nbin float
cloud_backscatter_10km /m/sr cloud backscatter (10km)
attribute
 nray, nbin float
cloud_backscatter_1km /m/sr cloud backscatter (1km)
attribute
 nray, nbin float
cloud_extinction_10km /m cloud extinction (10km)
attribute
 nray, nbin float
cloud_extinction_1km /m cloud extinction (1km)
attribute
 nray, nbin float
cloud_lidar_ratio_10km sr cloud lidar ratio (10km)
attribute
 nray, nbin float
cloud_lidar_ratio_1km sr cloud lidar ratio (1km)
attribute
 nray, nbin float
cloud_depolarization_10km % cloud depolarization ratio (10km)
attribute
 nray, nbin float
cloud_depolarization_1km % cloud depolarization ratio (1km)
attribute
 nray, nbin float
GRID_temperature_1km K temperature
attribute
 nray, nbin float
GRID_pressure_1km hPa pressure
attribute
 nray, nbin float
GRID_relativeHumidity_1km % relative humidity
attribute
 nray, nbin float
GRID_specificHumidity_1km kg/kg specific humidity
attribute
 nray, nbin float
ice_effective_radius_10km_uncertainty % uncertainty (ice effective radius) (10km)
attribute
 nray, nbin float
ice_effective_radius_1km_uncertainty % uncertainty (ice effective radius) (1km)
attribute
 nray, nbin float
water_effective_radius_10km_uncertainty % uncertainty (liquid effective radius) (10km)
attribute
 nray, nbin float
water_effective_radius_1km_uncertainty % uncertainty (liquid effective radius) (1km)
attribute
 nray, nbin float
ice_water_content_10km_uncertainty % uncertainty (ice water content) (10km)
attribute
 nray, nbin float
ice_water_content_1km_uncertainty % uncertainty (ice water content) (1km)
attribute
 nray, nbin float
liquid_water_content_10km_uncertainty % uncertainty (liquid water content) (10km)
attribute
 nray, nbin float
liquid_water_content_1km_uncertainty % uncertainty (liquid water content) (10km)
attribute
 nray, nbin float
L2_quality_flag_10km - L2 quality flag (10km)
attribute
 nray int
L2_quality_flag_1km - L2 quality flag (1km)
attribute
 nray int
quality_flag_10km - ACM_CLP (10km)/MSI_CLP optical thickness usuage flag (10km)
-9: MSI_CldOptThick_10km < 0, not used, 0: MSI_CldOptThick_10km >= 0, MSI_CldOptThick_QC_10km < 0., not used, 1: MSI_CldOptThick_QC_10km > 0., not used, 2: MSI_CldOptThick_QC_10km > 0., MSI_CLP quality_flag = low confidence, used , 3: MSI_CldOptThick_QC_10km > 0 ., MSI_CLP quality_flag = high confidence, used
attribute
 nray int
quality_flag_1km - ACM_CLP (1km)/MSI_CLP optical thickness usuage flag (1km)
-9: MSI_CldOptThick_1km < 0, not used, 0: MSI_CldOptThick_1km >= 0, MSI_CldOptThick_QC_1km < 0., not used, 1: MSI_CldOptThick_QC_1km > 0., not used, 2: MSI_CldOptThick_QC_1km > 0., MSI_CLP quality_flag = low confidence, used , 3: MSI_CldOptThick_QC_1km > 0 ., MSI_CLP quality_flag = high confidence, used
attribute
 nray int
ZQualityFlag1 - CPR_ECO: integrated_radar_reflectivity_flag_1km
attribute
 nray, nbin int
ZQualityFlag10 - CPR_ECO: integrated_radar_reflectivity_flag_10km
attribute
 nray, nbin int
DopplerQualityFlag1 - CPR_ECO: doppler_velocity_quality_flag_1km
attribute
 nray, nbin int
DopplerQualityFlag10 - CPR_ECO: doppler_velocity_quality_flag_10km
attribute
 nray, nbin int
PIAEstimationFlag1 - CPR_ECO: path_integrated_attenuation_flag_1km
attribute
 nray int
PIAEstimationFlag10 - CPR_ECO: path_integrated_attenuation_flag_10km
attribute
 nray int
ATLquality_flag_1km - ATL_CLA: quality_flag_1km
attribute
 nray, nbin int
ATLquality_flag_10km - ATL_CLA: quality_flag_10km
attribute
 nray, nbin int
MSI_CldOptThick_1km - MSI_CLP averaged optical thickness (1km)
attribute
 nray float
MSI_CldOptThick_10km - MSI_CLP averaged optical thickness (10km)
attribute
 nray float
MSI_CldOptThick_QC_1km - Qualty controlled value of MSI_CldOptThick_1km
attribute
 nray float
MSI_CldOptThick_QC_10km - Qualty controlled valu of MSI_CldOptThick_10km
attribute
 nray float
Geo   　 　 　
day_night_flag - day/night flag
0: night, 1: day
(CPR_L2a_ECO: day_night_flag)
attribute
 nray int
height m Altitude of pixels center above WGS84 ellipsoid
(20km- -500m, 100m resolution)
attribute
 nray float
land_water_flag - land/water flag
0: water, 1: land
(CPR_L2a_ECO: land_water_flag)
attribute
 nray int
latitude degree_north latitude
(CPR_L2a_ECO: latitude)
attribute
 nray double
longitude degree_east longitude
(CPR_L2a_ECO: longitude)
attribute
 nray double
surface_elevation m Terrain elevatino for JSG pixel center above WGS84 ellipsoid (CPR_L2a_ECO: surface_elevation_1km)
attribute
 nray float
time seconds since 2000-1-1 00:00:00.0 0:00 time
(CPR_L2a_ECO: time)
attribute
 nray double
Geo/Scan_Time   　 　 　
DayOfMonth - Day of month
attribute
 nray byte
DayOfYear - Day of year
attribute
 nray short
Hour - Hour
attribute
 nray byte
MilliSecond - MilliSecond
attribute
 nray float
Minute - Minute
attribute
 nray byte
Month - Month
attribute
 nray byte
Second - Second
attribute
 nray byte
SecondOfDay - Second of day
attribute
 nray int
Year - Year
attribute
 nray short
HeaderData

Please reffer to the "Product Definition Document" for header information.