ML3DZRHI: Aura Satellite Daily Binned Atmospheric Humidity Data

ML3DZRHI is the EOS Aura Microwave Limb Sounder daily binned product for relative humidity with respect to ice. The data version is 4.2, with near-global spatial coverage from -82 to +82 degrees latitude at 4-degree increments. Each netCDF4 file contains one year of data, organized into four group objects with statistical measures like average, min, max, standard deviation, and RMS.

Use Cases

• Modeling atmospheric humidity trends based on daily binned, near-global zonal mean data.
• Analyzing vertical humidity profiles based on data spanning from 316 to 0.0215 hPa pressure levels.
• Studying polar vortex dynamics based on the 'equivalent latitude' vs 'potential temperature' zonal mean group.
• Calculating statistical climatologies based on the provided average, min, max, standard deviation, and RMS fields.

Strengths

• Data spans a near-global latitude range from -82 to +82 degrees.
• Provides vertical resolution between 3 and 6 km across a recommended range from 316 to 0.0215 hPa.
• Files contain four distinct group objects with multiple statistical measures (average, min, max, std dev, rms).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Derived from radiances measured by the 118 and 190 GHz radiometers on the EOS Aura Microwave Limb Sounder.

Time Range

Data files contain one year of data.

Freshness

Last updated 2026-03-13 00:32:17.927811; freshness should be verified.

Geography

Near-global coverage from -82 to +82 degrees latitude at 4 degree latitude zonal increments.