N: 90 S: -90 E: 180 W: -180
Description
The CLOUD data suite provides per-pixel microphysics and macrophysics to support cloud/climate applications. Typical uses: screening clouds for atmospheric correction, evaluating cloud–radiation interactions, and joint analyses with ocean-color variables (e.g., chlorophyll, Rrs).
Core geophysical variables in this suite include:
• cloud_fraction — Cloud fraction (unitless; range 0–1)
• water_cloud_fraction — Water cloud fraction (unitless; range 0–1)
• ice_cloud_fraction — Ice cloud fraction (unitless; range 0–1)
• cer — Cloud particle effective radius (µm)
• cot — Cloud optical thickness (unitless)
• cwp — Cloud water path (g m⁻²)
• cth — Cloud top height (m)
• ctp — Cloud top pressure (hPa)
• ctt — Cloud top temperature (K)
Product Summary
Citation
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Documents
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
GENERAL DOCUMENTATION
Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor | Offset |
|---|---|---|---|---|---|---|---|
| cer_16 | Cloud Particle Effective Radius two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | micron | float32 | -32767 | 2 to 60 | N/A | N/A |
| cer_16_ice | Ice Cloud Particle Effective Radius two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | micron | float32 | -32767 | 2 to 60 | N/A | N/A |
| cer_16_water | Water Cloud Particle Effective Radius two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | micron | float32 | -32767 | 2 to 60 | N/A | N/A |
| cer_21 | Cloud Particle Effective Radius two-channel retrieval using the 2.1 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | micron | float32 | -32767 | 2 to 60 | N/A | N/A |
| cer_21_ice | Ice Cloud Particle Effective Radius two-channel retrieval using the 2.1 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | micron | float32 | -32767 | 2 to 60 | N/A | N/A |
| cer_21_water | Water Cloud Particle Effective Radius two-channel retrieval using the 2.1 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | micron | float32 | -32767 | 2 to 60 | N/A | N/A |
| cer_22 | Cloud Particle Effective Radius two-channel retrieval using the 2.2 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | micron | float32 | -32767 | 2 to 60 | N/A | N/A |
| cer_22_ice | Ice Cloud Particle Effective Radius two-channel retrieval using the 2.2 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | micron | float32 | -32767 | 2 to 60 | N/A | N/A |
| cer_22_water | Water Cloud Particle Effective Radius two-channel retrieval using the 2.2 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | micron | float32 | -32767 | 2 to 60 | N/A | N/A |
| cloud_fraction | cloud fraction | Dimensionless | float32 | -32767 | 0 to 1 | N/A | N/A |
| cot_16 | Cloud Optical Thickness at 670 nm two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | none | float32 | -32767 | 0.050000000745058 to 159 | N/A | N/A |
| cot_16_ice | Ice Cloud Optical Thickness at 670 nm two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | none | float32 | -32767 | 0.050000000745058 to 159 | N/A | N/A |
| cot_16_water | Water Cloud Optical Thickness at 670 nm two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | none | float32 | -32767 | 0.050000000745058 to 159 | N/A | N/A |
| cot_21 | Cloud Optical Thickness at 670 nm two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | none | float32 | -32767 | 0.050000000745058 to 159 | N/A | N/A |
| cot_21_ice | Ice Cloud Optical Thickness at 670 nm two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | none | float32 | -32767 | 0.050000000745058 to 159 | N/A | N/A |
| cot_21_water | Water Cloud Optical Thickness at 670 nm two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | none | float32 | -32767 | 0.050000000745058 to 159 | N/A | N/A |
| cot_22 | Cloud Optical Thickness at 670 nm two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | none | float32 | -32767 | 0.050000000745058 to 159 | N/A | N/A |
| cot_22_ice | Ice Cloud Optical Thickness at 670 nm two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | none | float32 | -32767 | 0.050000000745058 to 159 | N/A | N/A |
| cot_22_water | Water Cloud Optical Thickness at 670 nm two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | none | float32 | -32767 | 0.050000000745058 to 159 | N/A | N/A |
| cth | Height at the cloud top | kilometers | float32 | -32767 | 0 to 30 | N/A | N/A |
| cth_alb | Best surface albedo made by cloud top height algorithm | Dimensionless | float32 | -32767 | 0 to 2 | N/A | N/A |
| cth_alb_ice | Best surface albedo made by ice cloud top height algorithm | Dimensionless | float32 | -32767 | 0 to 2 | N/A | N/A |
| cth_alb_water | Best surface albedo made by water cloud top height algorithm | Dimensionless | float32 | -32767 | 0 to 2 | N/A | N/A |
| cth_cot | Cloud optical thickness at 760 nm from cloud top height algorithm" | Dimensionless | float32 | -32767 | 0 to 500 | N/A | N/A |
| cth_cot_ice | Ice Cloud optical thickness at 760 nm from cloud top height algorithm" | Dimensionless | float32 | -32767 | 0 to 500 | N/A | N/A |
| cth_cot_water | Water Cloud optical thickness at 760 nm from cloud top height algorithm" | Dimensionless | float32 | -32767 | 0 to 500 | N/A | N/A |
| cth_ice | Height at the ice cloud top | kilometers | float32 | -32767 | 0 to 30 | N/A | N/A |
| cth_water | Height at the water cloud top | kilometers | float32 | -32767 | 0 to 30 | N/A | N/A |
| ctp | Air pressure at the cloud top | mbar | float32 | -32767 | 50 to 1100 | N/A | N/A |
| ctp_ice | Air pressure at the ice cloud top | mbar | float32 | -32767 | 50 to 1100 | N/A | N/A |
| ctp_water | Air pressure at the water cloud top | mbar | float32 | -32767 | 50 to 1100 | N/A | N/A |
| ctt | Air temperature at the cloud top | degree K | float32 | -32767 | 100 to 350 | N/A | N/A |
| ctt_ice | Air temperature at the ice cloud top | degree K | float32 | -32767 | 100 to 350 | N/A | N/A |
| ctt_water | Air temperature at the water cloud top | degree K | float32 | -32767 | 100 to 350 | N/A | N/A |
| cwp_16 | Cloud Column Water Path two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | g/m^2 | float32 | -32767 | 0.10000000149012 to 500 | N/A | N/A |
| cwp_16_ice | Ice Cloud Column Water Path two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | g/m^2 | float32 | -32767 | 0.10000000149012 to 500 | N/A | N/A |
| cwp_16_water | Water Cloud Column Water Path two-channel retrieval using the 1.6 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | g/m^2 | float32 | -32767 | 0.10000000149012 to 500 | N/A | N/A |
| cwp_21 | Cloud Column Water Path two-channel retrieval using the 2.1 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | g/m^2 | float32 | -32767 | 0.10000000149012 to 500 | N/A | N/A |
| cwp_21_ice | Ice Cloud Column Water Path two-channel retrieval using the 2.1 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | g/m^2 | float32 | -32767 | 0.10000000149012 to 500 | N/A | N/A |
| cwp_21_water | Water Cloud Column Water Path two-channel retrieval using the 2.1 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | g/m^2 | float32 | -32767 | 0.10000000149012 to 500 | N/A | N/A |
| cwp_22 | Cloud Column Water Path two-channel retrieval using the 2.2 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | g/m^2 | float32 | -32767 | 0.10000000149012 to 500 | N/A | N/A |
| cwp_22_ice | Ice Cloud Column Water Path two-channel retrieval using the 2.2 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | g/m^2 | float32 | -32767 | 0.10000000149012 to 500 | N/A | N/A |
| cwp_22_water | Water Cloud Column Water Path two-channel retrieval using the 2.2 um band and either the 0.65 um, 0.86 um, or 1.2 um band (specified in cld_non_abs_band) | g/m^2 | float32 | -32767 | 0.10000000149012 to 500 | N/A | N/A |
| ice_cloud_fraction | Ice cloud fractional amount. range 0. - 1. | N/A | float32 | -32767 | 0 to 1 | N/A | N/A |
| lat | Latitude | degrees_north | float32 | -999 | -90 to 90 | N/A | N/A |
| lon | Longitude | degrees_east | float32 | -999 | -180 to 180 | N/A | N/A |
| water_cloud_fraction | Water cloud fractional amount. range 0. - 1. | N/A | float32 | -32767 | 0 to 1 | N/A | N/A |