Current Epoch: Epoch 10
Start: 16 Dec 2021 (Day 350) 14:27:41 | End: Present
Active Release: R05
R04 products will be available until all R05 products have been released.
2C-ICE
Product Availability: Available during A-Train and C-Train Epochs except for anomalies and maneuver data gaps
The Cloudsat and CALIPSO Ice Cloud Property Product (2C-ICE) contains retrieved estimates of ice cloud water content (IWC), effective radius (re) and extinction coefficient for identified ice clouds measured by Cloud profiling Radar (CPR) on CloudSat or the CALIPSO Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP; hereafter referred as the Lidar). This 2C-ICE cloud product uses combined inputs of measured radar reflectivity factor from the CloudSat 2BGEOGPROF product and measured attenuated backscattering coefficients at 532 nm from CALISPO lidar to constrain the ice cloud retrieval more tightly than the radar-only product and to generate more accurate results.
Primary Publication(s)
Deng, M., G. G. Mace, Z. Wang, and E. Berry, 2015: CloudSat 2C-ICE product update with a new Ze parameterization in lidar-only region, J. Geophys. Res. Atmos., 120, 12,198-12,208, doi:10.1002/2015JD023600.
Deng M, Gerald G. Mace, Zhien Wang, and R. Paul Lawson, 2013: Evaluation of Several A-Train Ice Cloud Retrieval Products with In Situ Measurements Collected during the SPARTICUS Campaign. J. Appl. Meteor. Climatol., 52, 1014–1030.
Deng, M., G. G. Mace, Z. Wang, and H. Okamoto, 2010: Tropical Composition, Cloud and Climate Coupling Experiment validation for cirrus cloud profiling retrieval using CloudSat radar and CALIPSO lidar, J. Geophys. Res., 115, D00J15, doi:10.1029/2009JD013104 (6)
Process Description and Interface Control Document (PDICD)
2C-ICE P1_R05 PDICD (Rev. 0) (Updated May 15, 2019)E09 Data Issues (Updated January 30, 2023)
Process Description and Interface Control Document (PDICD)
2C-ICE P1_R04 PDICD (Updated November 4, 2015)Data Issues (Updated November 4, 2015)
Algorithm Specifications (for latest R05)
Geolocation Fields
Field | Type | Dimensions | Units | Valid Range | Missing | Missing Op. | Factor | Offset |
---|---|---|---|---|---|---|---|---|
Profile_time | FLOAT32 | nray | seconds | [0.0, 6000.0] | 1.0 | 0.0 | ||
Latitude | FLOAT32 | nray | degrees | [-90.0, 90.0] | 1.0 | 0.0 | ||
Longitude | FLOAT32 | nray | degrees | [-180.0, 180.0] | 1.0 | 0.0 | ||
Height | INT16 | nbin,nray | 109 | [-5000, 30000] | -9999 | == | 1.0 | 0.0 |
UTC_start | FLOAT32 | scalar | seconds | [0.0, 86400.0] | 1.0 | 0.0 | ||
TAI_start | FLOAT64 | scalar | seconds | [0.0, 600000000.0] | 1.0 | 0.0 | ||
Range_to_intercept | FLOAT32 | nray | km | [600.0, 800.0] | 1.0 | 0.0 | ||
DEM_elevation | INT16 | nray | meters | [-9999, 8850] | 9999 | == | 1.0 | 0.0 |
Vertical_binsize | FLOAT32 | scalar | 109 | -9999.0 | == | 1.0 | 0.0 | |
Pitch_offset | FLOAT32 | scalar | degrees | [-90.0, 90.0] | 1.0 | 0.0 | ||
Roll_offset | FLOAT32 | scalar | degrees | [-90.0, 90.0] | 1.0 | 0.0 |
Data Fields
Field | Type | Dimensions | Units | Valid Range | Missing | Missing Op. | Factor | Offset |
---|---|---|---|---|---|---|---|---|
Temperature | FLOAT32 | nbin,nray | 75 | -999.0 | == | 1.0 | 0.0 | |
AP_re | FLOAT32 | nbin,nray | um | [0.0, 500.0] | -7777.0 | <= | 1.0 | 0.0 |
AP_IWC | FLOAT32 | nbin,nray | g/m^3 | [0.0, 1000.0] | -7777.0 | <= | 1.0 | 0.0 |
dBZe_uncertainty | FLOAT32 | nbin,nray | [0.0, 100.0] | -7777.0 | 1.0 | 0.0 | ||
TAB_uncertainty | FLOAT32 | nbin,nray | 1.0 | 0.0 | ||||
re | FLOAT32 | nbin,nray | um | [0.0, 1000.0] | -7777.0 | <= | 1.0 | 0.0 |
IWC | FLOAT32 | nbin,nray | g/m^3 | 1.0 | 0.0 | |||
EXT_coef | FLOAT32 | nbin,nray | /m | -7777.0 | 1.0 | 0.0 | ||
re_uncertainty | FLOAT32 | nbin,nray | 37 | [0.0, 250.0] | -7777.0 | <= | 1.0 | 0.0 |
IWC_uncertainty | FLOAT32 | nbin,nray | 37 | [0.0, 250.0] | -7777.0 | <= | 1.0 | 0.0 |
EXT_coef_uncertainty | UINT8 | nbin,nray | 37 | [0, 250] | 159 | <= | 1.0 | 0.0 |
dBZe_simulation | FLOAT32 | nbin,nray | dbz | -7777.0 | 1.0 | 0.0 | ||
TAB_simulation | FLOAT32 | nbin,nray | /km | 1.0 | 0.0 | |||
zone | INT32 | nbin,nray | [0, 255] | -7777 | 1.0 | 0.0 | ||
ze_makeup | FLOAT32 | nbin,nray | dbz | [-100.0, 100.0] | -7777.0 | 1.0 | 0.0 | |
tab_para | FLOAT32 | nbin,nray | 1/km | 1.0 | 0.0 | |||
Data_quality | UINT8 | nray | -- | [0, -1] | 1.0 | 0.0 | ||
Data_status | UINT16 | nray | -- | [0, -1] | 1.0 | 0.0 | ||
Data_targetID | UINT8 | nray | -- | [0, -1] | 1.0 | 0.0 | ||
RayStatus_validity | UINT8 | nray | -- | [0, -1] | 1.0 | 0.0 | ||
Navigation_land_sea_flag | UINT8 | nray | -- | [1, 4] | 1.0 | 0.0 | ||
ice_water_path | FLOAT32 | nray | g/m^2 | -7777.0 | <= | 1.0 | 0.0 | |
ice_water_path_uncertainty | UINT8 | nray | 37 | 159 | <= | 1.0 | 0.0 | |
optical_depth | FLOAT32 | nray | -7777.0 | <= | 1.0 | 0.0 | ||
optical_depth_uncertainty | UINT8 | nray | 159 | <= | 1.0 | 0.0 | ||
chi_square | FLOAT32 | nray | -7777.0 | <= | 1.0 | 0.0 | ||
profile_dimension | INT8 | nray | [0, -12] | -97 | <= | 1.0 | 0.0 | |
cc_ice_status | INT16 | nray | 1.0 | 0.0 |