We are in the process of migrating all NASA Earth science data sites into Earthdata from now until end of 2026. Not all NASA Earth science data and resources will appear here until then. Thank you for your patience as we make this transition.
Read about the Web Unification Project
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
| Dataset | Platforms | Instruments | Temporal Extent | Location Keywords | Spatial Extent | Data Format |
|---|---|---|---|---|---|---|
| PACE-PAX ER-2 Research Scanning Polarimeter (RSP) Data | NASA ER-2 | RSP-2 | 2024-08-29 to 2024-10-02 | CALIFORNIA, NORTHERN HEMISPHERE, WESTERN HEMISPHERE, TROPOSPHERE | N: 42.42 S: 31.58 E: -112.42 W: -128.52 | NetCDF-4 |
| PACE-PAX Marina Tower In-Situ Aerosol Data | GROUND-BASED OBSERVATIONS | APS, UHSAS, TSI-3563 Neph | 2024-09-01 to 2024-09-29 | CALIFORNIA, NORTHERN HEMISPHERE, WESTERN HEMISPHERE, TROPOSPHERE | N: 36.68 S: 36.67 E: -121.75 W: -121.77 | ICARTT |
| PEM Tropics A Sondes Data | RADIOSONDES | RADIOSONDES, OZONESONDES | 1995-01-05 to 1997-12-31 | PACIFIC OCEAN, HAWAIIAN ISLANDS, FIJI, CHRISTMAS ISLAND, GALAPAGOS ISLANDS | N: -14.23 S: -45.045 E: 180 W: -180 | GTE |
| PEM Tropics B In-Situ DC-8 Meteorology and Navigation Data | NASA DC-8 | DADS, MTP, DLH | 1999-02-20 to 1999-04-19 | PACIFIC OCEAN, HAWAIIAN ISLANDS, FIJI, CHRISTMAS ISLAND, GALAPAGOS ISLANDS | N: 35.8 S: -36.4 E: 180 W: -180 | GTE |
| PEM Tropics B In-Situ P-3B Meteorology and Navigation Data | P-3B | TAMMS | 1999-03-05 to 1999-04-12 | PACIFIC OCEAN, HAWAIIAN ISLANDS, FIJI, CHRISTMAS ISLAND, GALAPAGOS ISLANDS | N: 40 S: -21 E: -72 W: -166 | GTE |
| PEM West A In-Situ DC-8 Meteorology and Navigation Data | NASA DC-8 | DADS, GRAB SAMPLERS | 1991-09-08 to 1991-10-23 | PACIFIC OCEAN, EASTERN AFRICA, JAPAN, HONG KONG, GUAM | N: 61.338 S: -62 E: 180 W: -180 | GTE |
| PEM West B Ground Data | GROUND STATIONS | NDIR GAS ANALYZER, GAS CHROMATOGRAPHS, CHEMILUMINESCENCE, RAWINSONDES, OZONESONDES, GC-ECD, ION CHROMATOGRAPHS | 1991-02-22 to 1995-01-01 | PACIFIC OCEAN, JAPAN, HONG KONG, TAIWAN, SOUTH KOREA | N: 52.92 S: 21.33 E: 180 W: -180 | GTE |
| PEM West B In-Situ DC-8 Meteorology and Navigation Data | NASA DC-8 | DADS | 1994-01-26 to 1994-03-15 | PACIFIC OCEAN, EASTERN ASIA, JAPAN, HONG KONG, TAIWAN | N: 90 S: -9.7 E: 180 W: -180 | GTE |
| PISTON 2018 Research Vessel (RV) Mirai Ship Data | R/V Mirai | RADAR, RAWINSONDES | 2018-08-13 to 2018-09-02 | ASIA, TROPOSPHERE, PACIFIC OCEAN, WESTERN PACIFIC OCEAN, PHILIPPINES | ASCII, TAR | |
| PISTON 2018 Research Vessel (RV) Thompson ship datasets of ocean, atmosphere, and air-sea interaction | R/V Thompson | SEA-POL, CTD, ADCP, CHAM, SO, ROSR, W-Band Radar, CEILOMETERS, RADIOMETERS, RAWINSONDES, DISDROMETERS, GPS, Hemisphere VS1000, Gill WindMaster Pro, Vaisala HMT330, ORG-815-DA, Vaisala PTB330, NOAA PSL Sea Snake, SBE-21, Riegl LD90-3100VHS-FLP, Eppley PIR, Vaisala HMT337 | 2018-08-18 to 2018-10-13 | CONTINENT, ASIA, SOUTHEASTERN ASIA, OCEAN, PACIFIC OCEAN | netCDF-4, Text File, TAR |
SHOWING 10 OF 573
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.
The Microwave Limb Sounder Near-Real Time (MLS NRT) products are provided by the Land, Atmosphere Near-real time Capability for EOS (LANCE).
In coordination with the Microwave Limb Sounder (MLS) team, we now have several MLS products available through the GIBS image access APIs.
Learn how to visualize Microwave Limb Sounder data through OPeNDAP.
Frequently Asked Questions
Earthdata Forum
Our online forum provides a space for users to browse thousands of FAQs about research needs, data, and data applications. You can also submit new questions for our experts to answer.
Submit Questions to Earthdata Forumand View Expert Responses