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Humidity Data Access and Tools

NASA’s humidity data range from hourly primary forcing data to modeled data based on measurements from high-altitude aircraft. Our datasets and tools help users find and integrate the data they need to see how humidity influences weather, ecosystems, and how we live our lives.

Humidity Datasets

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Dataset Version Platforms Instruments Temporal Extent Spatial Extent Spatial Resolution Data Format
MERRA-2 tavgU_3d_cld_Np: 3d,diurnal,Time-Averaged,Pressure-Level,Assimilation,Cloud Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNPCLD) at GES DISC 5.12.4 MERRA-2 NOT APPLICABLE 1980-01-01 to Present

N: 90 S: -90 E: 180 W: -180

MERRA-2 tavgU_3d_qdt_Np: 3d,diurnal,Time-Averaged,Pressure-Level,Assimilation,Moist Tendencies 0.625 x 0.5 degree V5.12.4 (M2TUNPQDT) at GES DISC 5.12.4 MERRA-2 NOT APPLICABLE 1980-01-01 to Present

N: 90 S: -90 E: 180 W: -180

MetOp-A ASCAT ESDR Level 2 Ancillary Ocean Surface Fields Version 1.1 1.1 MODELS, METOP-A Computer, ASCAT 2007-01-01 to 2014-04-01

N: 90 S: -90 E: 180 W: -180

12.5 Kilometers x 12.5 Kilometers netCDF-4
MetOp-B ASCAT ESDR Level 2 Ancillary Ocean Surface Fields Version 1.1 1.1 Models, METOP-B Computer, ASCAT 2013-08-01 to 2022-05-31

N: 90 S: -90 E: 180 W: -180

12.5 Kilometers x 12.5 Kilometers netCDF-4
Millersville University Upper Air Radiosondes IMPACTS V1 1 GROUND STATIONS RADIOSONDES 2022-01-16 to 2023-02-28

N: 43.097 S: 39.927 E: -72.503 W: -76.455

ASCII
MLS/Aura Level 2 Diagnostics, Geophysical Parameter Grid V004 (ML2DGG) at GES DISC 004 Aura MLS 2004-08-02 to Present

N: 82 S: -82 E: 180 W: -180

MLS/Aura Level 2 Diagnostics, Geophysical Parameter Grid V005 (ML2DGG) at GES DISC 005 Aura MLS 2004-08-02 to Present

N: 82 S: -82 E: 180 W: -180

MLS/Aura Level 2 Relative Humidity With Respect To Ice V004 (ML2RHI) at GES DISC 004 Aura MLS 2004-08-02 to Present

N: 82 S: -82 E: 180 W: -180

MLS/Aura Level 2 Relative Humidity With Respect To Ice V005 (ML2RHI) at GES DISC 005 Aura MLS 2004-08-02 to Present

N: 82 S: -82 E: 180 W: -180

MLS/Aura Level 3 Daily Binned Relative Humidity With Respect To Ice (RHI) on Assorted Grids V004 (ML3DBRHI) at GES DISC 004 Aura MLS 2004-08-02 to Present

N: 82 S: -82 E: 180 W: -180

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Featured Humidity Observation Method: MLS
The Microwave Limb Sounder (MLS) instrument is carried aboard the Aqua satellite and acquires measurements globally day and night. The MLS makes measurements of atmospheric composition, temperature, humidity and cloud ice that are needed to learn more about weather, climate, and air quality.
Learn More About MLS
image collage of satellite data images of Earth

MLS Near Real-Time Data

Near real-time atmosphere, temperature, humidity, and cloud ice data from the Microwave Limb Sounder (MLS) are available through NASA's Land, Atmosphere Near real-time Capability for Earth observation (LANCE).
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MLS Products Available in GIBS

In coordination with the Microwave Limb Sounder (MLS) team, we now have several MLS products available through the GIBS image access APIs.

Humidity Data Tools

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Tool Description Services
Earthdata Search Earthdata Search enables data discovery, search, comparison, visualization, and access across NASA’s Earth science data holdings. Search and Discovery, Access, Cataloging, Cloud Computing, Downloading
Worldview Worldview offers the capability to interactively browse over 1,200 global, full-resolution satellite imagery layers and download the underlying data. Analysis, Search and Discovery, Visualization, Access, Comparison, Monitoring Natural Events
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