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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 Platform Instrument Temporal Extent Spatial Extent Spatial Resolution Data Format
SAFARI 2000 Upper Air Meteorological Profiles, South Africa, Dry Season 2000 1 BALLOONS RADIOSONDES 2000-08-01 to 2000-09-30

N: -24 S: -41 E: 31 W: -10

Shapefile
Saildrone 2021 Arctic field campaign for the Multi-Sensor Improved SST (MISST) project 1 Saildrone CTD, ADCP, ANEMOMETERS, FLUOROMETERS, TEMPERATURE SENSORS, HUMIDITY SENSORS, PYROMETERS, PAR SENSORS, BAROMETERS 2021-07-06 to 2021-10-21

N: 71 S: 65 E: -164.5 W: -168

netCDF-4
Saildrone 2022 Arctic field campaign for the Multi-Sensor Improved SST (MISST) project 1 Saildrone CTD, ADCP, ANEMOMETERS, FLUOROMETERS, TEMPERATURE SENSORS, HUMIDITY SENSORS, PYROMETERS, PAR SENSORS, BAROMETERS 2022-06-18 to 2022-08-17

N: 71.6 S: 65.2 E: -157.2 W: -168.5

netCDF-4
SARP 2018 Data 1 NASA DC-8 WAS, MMS, Picarro G2401, DLH, LGR, CAFE, CANOE, DADS 2018-06-25 to 2018-06-28

N: 37.63 S: 32.72 E: -114.9 W: -120.32

ICARTT
SARP 2019 Data 1 NASA DC-8 LI Neph, WAS, MMS, SAGA, NDIR GAS ANALYZER, DACOM, DLH, CAMS, DIAL, CAFS, ISAF, AMS, TSI LAS-3340, CCN, Vaisala HUMICAP HMP155, SMPS, NO/NOy, CIT-ToF-CIMS, DADS 2019-07-16 to 2019-07-18

N: 38.25 S: 30.74 E: -115.41 W: -121.88

ICARTT, HDF5
SARP 2024 Data 1 P-3B, B-200 POPS, UHSAS, DLH, Picarro G2401, Applanix, ToF-AMS, APS, CNC, TSI-3563 Neph, DMT SP2, WAS, ROZE, CAFE, CANOE, AIMMS 2024-06-15 to 2024-07-23

N: 40.2 S: 25.07 E: -74.71 W: -121.59

ICARTT, KML
SARP 2025 Data 1 P-3B, B-200, GROUND-BASED OBSERVATIONS Picarro G2401, DLH, UHSAS, CNC, ToF-AMS, ROZE, CAFE, CANOE, AIMMS, TAMMS, Pandora 2025-06-20 to 2025-07-19

N: 42.08 S: 26.57 E: -71.69 W: -120.41

ICARTT
SARP-East 2023 Data 1 B-200, GROUND STATIONS Picarro G2401, Thermo Scientific SO2 43i Analyzer, CAFE, TSI LAS-3340, CNC, NDIR GAS ANALYZER, TAP, CEILOMETERS, LI-850, OZONESONDES 2023-06-01 to 2023-06-29

N: 45 S: 30 E: -70 W: -85

ICARTT, netCDF-4
SASSIE ECCO Atmosphere Surface Temperature, Humidity, and Wind - Daily Mean llc1080 Grid (Version 1 Release 1) V1R1 MITgcm 2014-01-15 to 2021-02-08 NETCDF4
SBU Meteorological Station IMPACTS V1 1 GROUND STATIONS ANEMOMETERS, BAROMETERS, GPS, HUMIDITY SENSORS, THERMOMETERS 2020-01-01 to 2023-01-25

N: 43.256 S: 40.718 E: -73.02 W: -76.882

netCDF-4, ASCII
SBU Mobile Soundings IMPACTS 1 GROUND STATIONS RAWINSONDES 2020-01-18 to 2023-02-28

N: 43.784980773926 S: 40.48413848877 E: -70.869209289551 W: -76.980628967285

netCDF-3
Scanning Multichannel Microwave Radiometer (SMMR) Monthly Mean Atmospheric Liquid Water (ALW) By Prabhakara 1 Nimbus-7 SMMR 1979-02-01 to 1984-05-31 ASCII
Scanning Multichannel Microwave Radiometer (SMMR) Monthly Mean Integrated Water Vapor (IWV) By Prabhakara 1 Nimbus-7 SMMR 1979-01-01 to 1983-09-30 Binary
SCATSAT-1 ESDR Level 2 Ancillary Ocean Surface Fields Version 1.1 1.1 MODELS, SCATSAT-1 Computer, OSCAT-2 2018-04-01 to 2021-03-01

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

12.5 Kilometers x 12.5 Kilometers netCDF-4
SCOAPE Balloon and Ozonesondes Data 1 GROUND-BASED OBSERVATIONS OZONESONDES, RADIOSONDES 2019-05-11 to 2019-05-19

N: 30 S: 27.5 E: -86.5 W: -92

ICARTT
SCOAPE R/V Point Sur Data 1 R/V Point Sur CEILOMETERS, SUN PHOTOMETERS, AETHALOMETER, ANEMOMETERS, PYRANOMETERS 2019-05-09 to 2019-05-19

N: 31.5 S: 26 E: -84 W: -94

NetCDF-3, ICARTT
SCOAPE-II Sondes Data 1 RADIOSONDES OZONESONDES 2024-06-03 to 2024-06-13

N: 29.45 S: 28.12 E: -87.43 W: -90.97

ICARTT
SEAC4RS DC-8 Aircraft In-Situ Meteorological and Navigational Data 1 NASA DC-8 AIMMS, TTS, HYGROMETERS, MMS, DLH 2013-08-02 to 2013-09-24

N: 50.22 S: 19.37 E: -80.25 W: -125.99

ICARTT
SEAC4RS ER-2 Aircraft In-Situ Meteorological and Navigational Data 1 NASA ER-2 MMS, NASDAT, JPL LASER HYGROMETERS, MTP, FLUORESCENCE SPECTROSCOPY 2013-08-01 to 2013-09-23

N: 53 S: 15 E: -82 W: -128

ICARTT
SEAC4RS Merge Data Files 1 NASA DC-8, NASA ER-2 Computer 2013-08-06 to 2013-09-24

N: 52.11 S: 15.54 E: -80.25 W: -126

ICARTT
SEAC4RS Radiosonde/Ozonesonde Data 1 GROUND STATIONS OZONESONDES, RADIOSONDES 2013-08-07 to 2013-09-28

N: 35.22 S: 29.36 E: -84 W: -107.65

ICARTT
SMAPVEX16 Manitoba Meteorological Data V001 1 GROUND-BASED OBSERVATIONS HUMIDITY SENSORS, RAIN GAUGES, TEMPERATURE PROBES 2016-05-02 to 2016-09-30

N: 49.68033 S: 49.49968 E: -97.98999 W: -98.0334

CSV, KMZ
S-MODE L2 Shipboard Meteorological Data from Rawinsondes Version 1 1 Ships RAWINSONDES, RADIOSONDES 2021-10-21 to 2023-05-31

N: 38.1 S: 36.3 E: -122.9 W: -125.4

netCDF-4
S-MODE L2 Shipboard Thermosalinograph, Meteorology, and Bio-optics Measurements Version 1 1 Ships THERMOSALINOGRAPHS, FLUOROMETERS 2021-08-01 to 2023-05-04

N: 38.1 S: 36.3 E: -122.9 W: -125.4

netCDF-4
S-MODE Saildrone Level 1 Observations 1 Saildrone ADCP 2021-10-01 to 2022-11-30

N: 38.1 S: 36.3 E: -122.9 W: -125.4

netCDF-4
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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).
image of MLS SIPS data over Antarctica

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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